I just touched off a 308 Winchester in a 6 long bolt action pistol, the final round of my 308 barrel length testing, and couldnt be happier. No complaints, no problems. Due to ammunition constraints, data for the Winchester 147 grain FMJ and Federal 168 grain Gold Medal was gathered until 8 and Winchester 180 grain Power-Point 9. Ive been beating on the 510 and 517 for a while. For hunting and tactical applications, I see a real benefit to the shorter barrels. This results in a 7.62 case that is ever so . The experimental cartridge fluctuated in case size before settling in at 51 millimeters long. However, testing indicates it may not be as much as initially thought. It helped pave the way for the successful powder company that exists today. This was with Varget powder. Contrary to the popular urban legend, 7.62 NATO casings do indeed have thicker walls than .308 Winchester brass despite their almost identical external dimensions. The Model Seven uses the same barrel dimensions as the 700, so unscrewing the barrel mounting it on the Model Seven (checking head space of course) provided me a serviceable pistol . Obviously this is a different cartridge type, but also our 6mmBR barrel end length was 5 longer than Rifleshooter.coms .308 Win start length. A. Furthermore, the To learn more about the LSS and other MDT products, click here to visit their website. My 16.5 308 Winchester (above) is a fun little rifle. Winchesters fiber wrapped Win-Lite shotgun barrels, Custom 1911 Project: Part 3- fit and blend grip safety, Remington Model Seven (Model 7) Versus The Model 700, 6.5 Creedmoor load development: 142 grain Sierra MatchKing with Reloader 17 and W760, 6.5 Grendel loads in a Howa MINIACTION (6.5 Grendel load development), Rifleshooter.coms 50-25-7 Practical Carbine Standard, Installing a recoil pad on a fiberglass stock, Review: Lithgow Arms LA102 Crossover Centerfire rifle, Replacing a plastic recoil pad on a shotgun, Building a 300 Winchester Magnum Precision Rifle, 5 Quick Tips for Applying Cerakote to Firearms, My bolt wont close! The cartridges bullet is seated inside the top rim of the case (called the neck), and the primer is seated in a recess at the bottom of the case. I tried to select a cross section of cartridges that would be of interest to a wide variety of shooters. .357 SIG, .38 Super Auto Colt, .35 Whelen, .300 Remington Ultra Magnum, .35 Remington, .44 Smith & Wesson Special, .380 Auto (9mm Browning Short), 10mm Auto, .25 Winchester Super Short Magnum (WSSM), .303 British, 6.5x54 MS (6.5 Mannlicher-Schoenauer), .300 Remington Short Action Ultra Magnum, .218 Bee, 6.8mm Remington SPC, .25-20 Winchester. Velocity loss per inch of barrel was .6 ft/sec away (22.8 ft/sec)from the value calculated with 5 shot strings. The maximum point blank range, allows a shooter to sight in his weapon at a given distance to hit a target of a given size when holding center mass. The maximum effective range for accurate shooting for any round is that distance where the bullet's velocity drops below the speed-of-sound. For a more detailed chamber breakdown, check out this article by Bison Ballistics. was measured from the end of the barrel back to the breech face. This bullet weight, in frangible form, is favored by snipers, police marksmen and long range hunters. NOTE: Many shooting newbies may see the number combination 7.62 and assume that it is referencing the NATO round, but without the NATO designation, make sure that combination is followed by a 51 instead of some other number. tweet/email or post a comment on the blog - one of us will double-check the original Shilen .308 1:10 match grade stainless steel unturned barrel blank, Federal, 308 Winchester Gold Medal 168 Grain Matchking BTHP, Winchester, 308 Winchester Super-X 180 Grain Power-Point, Magnetospeed barrel mounted ballistic chronograph. Here are a few pictures [], Without a doubt, the crown of a rifle is essential foraccuracy. How to Sight in a Scope - Step by Step Guide. Take this into consideration when comparing calibers using our With the .30 caliber bullet diameter being translated as 7.62 millimeters, the new 7.62x51mm cartridge was born. In fact the .308 Winchester 165gr bullet is traveling faster at 1000 yards than the .223 or 7.62x39mm at just 500 yds. Enter your email address to subscribe and receive notifications of new posts by email. The NATO 51 round first entered service in the 1950s but lacks the R of the rimmed Russian round. The IMI Samson 150 grain FMJ is a 7.62x51mm NATO spec cartridge. By using the same barrel, I controlled for bore size, chamber, and headspace- all of which will impact velocity. The forearm was removed after the first string to allow access to the saw. Velocity loss can be more extreme with shorter barrel lengths (and bigger cartridges). Short Rifle, Long Range: Testing our 16.5 308 Remington 700 out to 635 yards, 16.5 Inch 308 Winchester Precision Rifle: Summary of a Short Rifle. By adding trajectories to the panel on the right you may produce charts and graphs that show the different trajectories side by side. Your choice. Note: I also fired a 30 shots of the IMI Samson 7.62mm 150 grain FMJ with the 28 and 16.5 lengths- Ill discuss why later. The most significant decrease in barrel length occurred when the barrel was cut from 8 to 7. This chart shows velocity changes for all four ammo varieties: Summary of Findings: The average velocity loss per inch, for all four ammo types combined, was 22.7 FPS. .308 Winchester (7.62mm NATO), I used my iPhone to record a couple shots being fired in slow motion. CLICK HERE to Read the Rifleshooter.com Test. Blueprinting (Truing) a Remington 700 Action, 308 Winchester H4895 Reduced loads, 168 SMK and 150 Pro-Hunter H4895 is the first powder Hodgdon introduced. Turning a sporter contour rifle barrel from a blank, 6.5 Creedmoor loads: 107 SMK IMR 8208 XBR and 142 SMK Superformance 6.5 Creedmoor made a name for itself based on performance with the 120-142 gr. The ergonomics are great, plus I like the folding stock and modular forend. 0. Even if I had crowned the barrel at a given length, I think any accuracy assumptions wouldnt be particularly leading when you factor in changes in barrel harmonics, barrel construction and the shooters ability. My ears were ringing louder than I could remember and my nose ran in the cold air. As a Wildcatter it gets more so! Compare the above rates of loss to those found in 308 Winchester / 7.62x51mm NATO: Barrel Length versus Velocity (28 to 16.5), where the Winchester 147 grain FMJ averaged 24.6 feet/second per inch of barrel, IMI 150 grain FMJ averaged 22.8 feet/second per inch of barrel, Federal 168 grain Gold Medal averaged 20.9 feet/second per inch of barrel While there are differences between the amounts of pressure generated by each round, the nominal difference is around 12,000 PSI, although in practice, that number is closer to 4,000. I use a Forster Match Rife Headspace Gauge Kit. When you switch this out with a .308 Winchester round, the increased pressure, thinner walls, and extra space around the cartridge have the potential to cause the case to expand past its point of maximum elasticity. recording sheets. I would have guessed 150-200 feet/second velocity loss between 24 and 16.5 barrel lengths. var _gaq = _gaq || []; This was within 7 ft/sec of the value I generated with the 5 shot strings(262 ft/sec). I fired 30 rounds of IMI Samson 150 grain FMJ at 28 and 16.5 and recorded the results. Since we would be gathering data on 52 different barrel length and ammunition combinations and would not be crowning the barrel after each cut, we decided to eliminate gathering data on group sizes. This is the point that a little more barrel will get a lot more from the round. In fact the .308 Winchester 165gr bullet is traveling faster at 1000 yards than the .223 or 7.62x39mm at just 500 yds. As noted in the 223 short barrel experiment, as the barrel length decreases, the chronograph will sometimes fail to record a shot. That said, we wouldnt make a habit of it. He declined. Super Short Precision Rifles: Is there such thing as a 16.5 .308 Tactical Bolt Action Rifle? Your trustworthy Task & Purpose editorial staff is here to clear things so you can stop worrying about blowing your nose off each time you go to pull the trigger. The 30-30 Winchester 150 gr. What do you think of the MDT LSS chassis? It says that at around the halfway point of 500 yards the bullet will have slowed by 900fps and while that may sound bad it really isn't in terms of a percentage of initial velocity compared to say the .223 Remington (would be 1481fps from initial 3214fps) or the 7.62x39mm (would be 1066fps from initial 2349fps). Temperature was 47 F.. The test protocol was repeated for the next length. I actually had this happen on two different mags. I think if you tinkered enough you could do 1,000, however I dont think it is practical. It fires a .312-inch-diameter bullet as opposed to a .308-inch-diameter bullet and operates at 45,000 psi as opposed to 40,000. Yes, I did for the 223 post. Notice the rounds have similar external ballistics with the different barrel lengths out to 500 yards, past 500 the differences become significant. I did in the 223 and 300 Win Magposts, and was shocked with the performance of a saw-cut crown. The chops tests ranged in barrel length from 18" down to 3". I think data sets are great. The test protocol was repeated for the next length. real* world weapons: Cor Bon 165 gr. Why you ask? This is especially useful for hunters, of who many, will hold center mass of a vital area on game and dont want to dial in a correction. While the .30-06 was again proving itself in Korea, the Army experimented with a variant of the .300 Savage that is designated the T65. The average velocity loss per inch, for all four ammo types combined, was 22.7 FPS. *Casing image above is an artist rendering and not a real photo of .308 Winchester (7.62mm NATO) Ballistics cartridge. While most modern 7.6251-chambered firearms are specced to safely handle .308 cartridges, older NATO-chambered guns are not. Maybe he meant negligible? At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. Barrel length, Barrel length and velocity, Cartridge Selection At each barrel length, the rifle was fired from a front rest with rear bags, with five rounds of each type of ammunition. Effect of Barrel Length on the Muzzle Velocity and Reportfrom a Mosin-Nagant 7.62x54R Rifle is one of the best written papers Ive seen on the topic (it isnt about 308 Winchester but deserves a look). The .327 Fed. This resulted in a velocity loss of 137 feet/second. IMI 150 grain FMJ 7.62x51m NATO data was gathered down to a 6 barrel length. photo link: http://rifleshooter.com/wp-content/uploads/2015/01/custom-16.5-rem-700-308.jpg. Last week I found out Cerakote has a color called USMC Red. Brian Smyth is a lifelong word nerd, gearhead, and (virtual) military brat who joined the Task & Purpose team in 2021 following a short stint with The Drive. Nearly every target shooter had his teeth cut on a 308 Winchester. var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); My 22 308 Winchester (above) is my favorite rifle to shoot. While most modern guns can handle both rounds safely, it never hurts to err on the side of caution. It is too short to work with the TACMOD chassis forend, so now it is on the MDT LSS chassis. Often thought of as an [], Installing an External Bolt Stop/Release on a Remington 700 The factory bolt stop/release mechanism on Remington 700 rifles is sometimes considered a weak point in the design. UPDATE 12/30/14: I tapered the barrel and installed a brake. At the urging of the federal government, the Small Arms and Ammunition Manufacturers Institute (SAAMI) was founded in 1926 as an association of the nations leading manufacturers of firearms, ammunition and components. The organization is tasked with creating, standardizing, and publishing technical firearms and ammunition data in order to promote quality, reliability, interchangeability, and safety within the firearms manufacturing and shooting communities. We did all the work. Because of the arc of travel of the bullet you will hit dead center at 50 and 200 yards with a 50 yard zero. In my own experience, Ive seen two barrels from the same manufacturer, cut with the same reamer, shoot the same velocity with different barrel lengths with identical hand loads. This results in a 7.62 case that is ever so slightly longer than its commercial brother. We stopped at 500 yards, but I had some legit 2.5 500 yard 5 shot groups. With F Open shooting it does take a lot of testing over a long time to come up with the sweet spot of barrel length for one powder type for barrel, bullet brand/weight/and design alone. The testers observed: The Berger Reloading manual says for the 308 Winchester, muzzle velocity will increase (or decrease) by approximately 20 fps per inch from a standard 24 barrel., The testers described their procedure as follows: Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. Tolerance is the acceptable degree of variance a manufacturer will allow for a product to meet quality standards. This bullet at 500 yards still has speed and stopping power with 1192 square lbs of energy. If they did, I would have noticed the first round fired for every barrel length slower then the subsequent rounds. Headspace was measured at 1.633+ (.003 over minimum). Elasticity describes a materials ability to expand and contract, while plasticity refers to a materials ability to be stretched into a new shape without breaking (under reasonable amounts of stress). 2/1/16- Short barrel information can be found at: 1/24/15- Complete data sets for each cartridge can be found in the following posts: We ran the 147, 150 and 168 grain loads for 28, 24, 20 and 16.5 barrel lengths out to 1,000 yards (optimisticdistances for the 147 and 150 grain loads). These graphs assume a 1.75 height of the optic over the bore and weather conditions of 59F. Just ask Todd Hodnett. up to you. Initially we intended to test both 9mm and .45ACP cartridges for this sequence. 308 Winchester: BBA JHP: 175: 2832: 2700: 308 Winchester Modular Driven Technologies (MDT) LSS Chassis Review, LSS and other MDT products, click here to visit their website, MagnetoSpeed V3 versus Oehler 35P: Chronograph comparison and review, 6.5 Creedmoor loads: 107 SMK IMR 8208 XBR and 142 SMK Superformance, Cut and crown a rifle barrel without a lathe (11 degree target crown). The cuts were made in one-inch intervals with a rotary saw. A summary of the data for all four cartridges is provided below. Without his help all of this would have Your data showed the 7.6239 mm Russian slowed down from 23 to 24 in barrel length. Try these too.. With a barrel reduction from 28 to 16.5, the average speed loss of the four types of .308 ammo was 261 fps total. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. Although they share .30 caliber bullets, the 300 Blackout and 308 Win are dissimilar otherwise. Published Mar 29, 2021 12:55 PM EDT. My ears were ringing for a long time after the test, I shot it wearing double ear protection and without overhead covered. them by name does not constitute an endorsement of any kind. All these details have been generated using our . For instance, when calculating maximum point blank zero for a 8 target, the projectile will never rise more than 4 above the line of sight or fall 4 below it. Besides the time, I havent noticed any burrs (real or imagined) left by the saw affecting the velocity of the bullets. I contribute this to the differences in barrel and headspace tolerances. . The headspace on this pistol measured 1.630 (SAAMI minimum), this was .003 less that when the barrel was installed on the rifle (1.633). The chamber is the portion of the firearm which hosts the cartridge prior to the firearm being fired. The statistics shown above demonstrate the advanced speed capabilities of the 6mm ARC. You can find The muzzle blast from the short barrel eroded away some of the chassis! It seems like the 7.62x39mm Russian performance is optimum at a 16 barrel length. _gaq.push(['_setAccount', 'UA-6323545-2']); The bolt action pistol with a 5 barrel (above). However it is an excellent close-to-midrange round, capable of outstanding accuracy. Much Different Results with 6mmBR and a Longer Barrel The .308 just lacks the horsepower for truly long-range shooting. To learn more about how I made this modification, see the Project Guns section of this site. All in all, this was a very thorough test by the folks at RifleShooter.com. 7.62x51mm) and .308 Winchester the same thing? Interestingly, these numbers jive pretty well with estimates found in reloading manuals. We selected an 8 MPBR for comparison purposes, since this was the same size vital area we used for the 300 Winchester Magnum and 223 Remington barrel length articles. I will actually contour what is left and use it on a custom build. The Winchester 147 grain FMJ lost 10 ft/sec (5 ft/sec per inch) and the IMI Samson 150 grain FMJ lost 22 ft/sec (11 ft/sec per inch). (function() { In the second post below, youll see some outstanding 500 yard targets that I shot with the rifle. Initial testing was done on Remington 700 action in a rifle. Muzzle flash with the IMI Samson 150 grain FMJ was noticeably worsefrom 18 and below. There are plenty of options from which to choose. A Click on each to just browse the charts, click on a given ammunition type listed in the header of each chart for a graph of how that particular ammunition performed, or you can download the raw data for your own use. While using calipers to measure the walls of fired brass may cause less than conclusive results, the scale doesnt lie. When that happens Ill post a link there. The 308 is slightly more powerful and has a longer range. I did not control for barrel temperature. Building something to cut up isnt the most rewarding experience; however, I plan on contouring and finishing the barrel to 16.25 (thats why I stopped at 16.5). Ballistics and Drop for the .308 Winchester (7.62mm NATO) Cartridge Type: Rifle Height: 2.015" Width: 0.473" Average FPS: 2681 Average Energy: 2617 Average Gr: 164 Recoil: 1.95 Power Rank: 4.4 of 20 The .308 Winchester / 7.62x51mm NATO was created in 1952 and is based on the .300 savage round a round created in 1920. I think he may be misquoting his source. NTX 83176 2050 1450 1070 145 72 39 -1 5 0 -156 If your .308 isn't close to these specs, or if you are a sniper or into long range shots you may want to take this a step further and use our ballistic calculator to create a custom .308 ballistic chart to take into account variances. Or not. 0. The brand new, factory AI AICS magazine also flew apart as few times. The rifle is made safe and empty with the bolt removed and the barrel is cut back, 1 at a time. A. The same barrel was then mounted on a bolt action pistol, and data was gathered for the same four cartridges from 14 to 6 in 223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches. Or are they different? The most significant decrease in barrel length occurred when the barrel was cut from 14 to 13. Once the gases (mostly) escape, the casing shrinks again, although it does not quite return to its original shape and size. In addition to riding on the back of the 7.62 NATOs short-lived military career, the .308 took advantage of its ballistic and performance similarities to the already venerated .30-06 Springfield, the cartridge that won two world wars and held the line in Korea. For instance, the Berger Reloading manual says for the 308 Winchester, muzzle velocity will increase (or decrease) by approximately 20 fps per inch from a standard 24 barrel. The 7.62 NATO was designed with two key factors in mind: the ability to facilitate smoother insertion and extraction of rounds during automatic fire, and the ability to handle the inevitably looser tolerances of ammunition manufactured by different NATO members. We'd like to personally and specifically thank Pat Childs at Fin & Feather in Iowa City, as he not only helped get most of our I may wear a lab coat to kick things up another notch next time. The muzzle blast was so violent, it chopped open my Edgewood bag when it got too close. Welcome Welcome to Ballistics By The Inch, or 'BBTI' as people have taken to calling it. 28 barrel ft/sec and 16.5 barrel ft/sec represents the velocity data for the specific shot number. or 7.62 NATO ammo. My calculations assume a 1.75 sight over bore height. The average data for these four shot data sets is recorded in the table above, as well as the tables below. The results from Rifleshooter.coms .308 barrel cut-down test are quite different than the results we recorded some years ago with a barrel chambered for the 6mmBR cartridge. Since muzzle velocity is dependent on pressure, temperature and volume, I attempted to control as many variables as possible given my setting and equipment. Yes, it did. To show how the data set changes with an increase in sample size, I made a table (below) with the data from both 30 shot strings. Create Your Free Custom Ballistic Report Liked this? The rifle is fine. ga.src = ('https:' == document.location.protocol ? The barrel was cut off using a cold saw. So, what gives? This stage was conducted on pistol built on a Model Seven action (note, you cant convert rifles to pistols in the US, to make a pistol you need to start with a virgin receiver that has never been a rifle). I cant find the source document and data set (he does have some nice graphs), but it seems the author is trying show you dont need a long barrel for long range shooting. The barrel did heat up during firing. Tipped MatchKing (TMK) and VARGET, Mossberg 500: Cut, Crown and Choke Tube Installation, 6.5 Creedmoor load development: 16.5 inch barrel, 123 SMK and 140 SMK, Jewell trigger installation on Winchester 70/FN Special Police, Remington 700 Tactical .308 AAC-SD Review, Completing an 80% 10/22 Select Fire LLC RAZOR Semiautomatic Receiver, Scattergun Technologies Track-Lock II Ghost Ring Sight Installation on a Remington 870 Police Magnum, Removing a stuck pull-through cleaning kit, 308 WinchesterBarrel length in inches versus Muzzle velocity in feet-per-second (ft/sec), 308 Winchester Maximum Point Blank Range (MPBR) in yards for 8 Target. I think the value of this data is worth the time, effort and expense. Shooting 320 rounds off a chassis on your first outing you get a feel for things. Super easy to install and remove the action from the stock. Gold Dot Short-bbl HP: Henry Big Boy 20" barrel: 1555: 1527: 1613 Here is a list of all 23 different data sets we have tested. When the U.S. Army began developing the 7.62x51mm round, Winchester saw the writing on the wall and figured to cash in on what it hoped was the next official cartridge of the American infantryman, because when it comes to weapons technology, the military sells. rifle, you should be fine firing any modern commercial .308 Win. We may earn revenue from the products available on this page and participate in affiliate programs. Registration on or use of this site constitutes acceptance of our Terms of Service. I selected the Winchester Super-X 180 grain Power-Point as a representative hunting cartridge. All content Copyright 1998-2018 Rifleshooter.com, FTC disclosure: some links on this site are monetized, Sig Sauer MCX Virtus PCP Air Rifle Review- Initial Impressions, Project Guns- Gunsmithing articles and posts, 223 Remington/5.56 NATO, velocity versus barrel length: A man, his chop box and his friends rifle. While there are flatter shooting and more powerful cartridges on the market (many of which are based on the 308 Winchester), the 308 Winchester fits the bill for most applications- plus factory rifles and ammunition are readily available. The barreled action was then removed from the chassis, the barrel cut back one inch, reinstalled and fired again for the next set of data. The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only. ammunition and other supplies, he was the brilliant gunsmith who worked with us to make This means throwing .308 rounds into the magazine of a 20-year-old M14 could set taxpayers back the cost of a new rifle and your medical bill at Walter Reed. And weather conditions of 59F charts and graphs that show the different trajectories by... Double ear protection and without overhead covered and receive notifications of new posts by email a Scope Step... 24 in barrel length decreases, the chronograph will sometimes fail to record a.... 300 Blackout and 308 Win are dissimilar otherwise shown above demonstrate the advanced speed of! Given barrel length from 18 & quot ; the bullets check out this article by Bison Ballistics occurred the... 7.62X51M NATO data was gathered down to 3 & quot ; down to a variety... My Edgewood bag when it got too close them by name does not constitute an endorsement of any kind that! Above, as well as the barrel was cut from 14 to 13 police marksmen and range! The 1950s but lacks the horsepower for truly long-range shooting and use on... As a representative hunting cartridge rendering and not a real photo of.308 Winchester ( 7.62mm NATO,... Barrel the.308 Winchester ( 7.62mm NATO ), I used my iPhone to record a shots... Too short to work with the bolt action pistol with a 5 barrel ( above ) a... It chopped open my Edgewood bag when it got too close loss per inch of barrel was cut from to... 1192 square lbs of energy ), I see a real benefit to the panel on the side caution... Bison Ballistics first entered service in the second post below, youll see some outstanding yard... 308 Win are dissimilar otherwise short to work with the TACMOD chassis forend, so now it practical... 51 millimeters long bullet you will hit dead center at 50 and 200 yards a! Size before settling in at 51 millimeters long longer than Rifleshooter.coms.308 Win form, is favored by snipers 308 ballistics by the inch! Before settling in at 51 millimeters long will actually contour what is left and use it on a 308.. 7.6239 mm Russian slowed down from 23 to 24 in barrel and installed a.! After the test, I would have your data showed the 7.6239 mm Russian slowed down from 23 to in. Blackout and 308 Win are dissimilar otherwise and my nose ran in the table above, well! By competent gunsmiths only the velocity data for these four shot data sets is recorded in cold..003 over minimum ) learn more about the LSS and other MDT products, click here to their. The 1950s but lacks the R of the 6mm arc with 1192 lbs. The.223 or 7.62x39mm at just 500 yds shooter had his teeth on. On the MDT LSS chassis Rifleshooter.coms.308 Win controlled for bore size, chamber, was... ) Ballistics cartridge.308 just lacks the R of the chassis they share.30 caliber bullets the... Saw-Cut crown there are plenty of options from which to choose capabilities of the data for four. Rifle, you should be fine firing any modern commercial.308 Win start length iPhone to record shot. My iPhone to record a couple shots being fired grain FMJ at 28 and 16.5 barrel lengths to. Happen on two different mags forend, so now it is practical name does not constitute an endorsement of kind! I dont think it is an artist rendering and not a real to... Enough you could do 1,000, however I dont think it is on the 510 and for! Every target shooter had his teeth cut on a custom build capabilities of the MDT chassis. Ever so slightly longer than its commercial brother be fine firing any modern commercial.308 Win burrs! At 45,000 psi as opposed to a.308-inch-diameter bullet and operates at 45,000 psi opposed. How I made this modification, see the Project guns section of cartridges that would of. Super easy to install and remove the action from the end of the MDT LSS chassis case is. Cause less than conclusive results, the rifle than I could remember and my nose in! And operates at 45,000 psi as opposed to a wide variety of.! 517 for a more detailed chamber breakdown, check out this article by Bison Ballistics 500 yards, 500. Ringing for a more detailed chamber breakdown, check out this article by Bison Ballistics a summary of the over! Folding stock and modular forend the saw affecting the velocity data for these four shot data sets is in. Too close and 308 Win are dissimilar otherwise the average data for the specific shot.. Of fired brass may cause less than conclusive results, the rifle is made safe and with! Barrel and installed a brake Project guns section of this site constitutes acceptance of Terms... 24 and 16.5 barrel lengths ( and bigger cartridges ) a velocity can! Exists today shot number a saw-cut crown make a habit of it never hurts to on. And participate in affiliate programs essential foraccuracy Cerakote has a longer 308 ballistics by the inch with the rifle was cleared and bolt! Degree of variance a manufacturer will allow for a while bag when it got too close occurred when barrel... Eroded away some of the barrel and installed a brake Magposts, and was shocked the! In the table above, as well as the tables below and use it on a custom.... 6Mm arc 7.62x51mm NATO spec cartridge data sets is recorded in the 1950s but lacks the of... Produced for informational purposes only and should be fine firing any modern commercial.308 Win receive notifications new! The side of caution done on Remington 700 action in a velocity per... Noticeably worsefrom 18 and below removed after the first round fired for every barrel length slower the... Well with estimates found in reloading manuals custom build Edgewood bag when got!.308 tactical bolt action rifle custom build ( 7.62mm NATO ), see. To allow access to the panel on the right you may produce charts graphs. But lacks the R of the firearm being fired in slow motion image above an! Arc of travel of the bullets is a different cartridge type, but also 6mmBR! 7.62X51M NATO data was gathered down to 3 & quot ;.308 Win week I out. The 1950s but lacks the R of the bullets 28 barrel ft/sec the! Variety of shooters open my Edgewood bag when it got too close power with 1192 square lbs 308 ballistics by the inch.. Spec cartridge cartridge at a given barrel length 308 ballistics by the inch, the chronograph will sometimes fail record! Different barrel lengths out to 500 yards still has speed and stopping power with 1192 square lbs energy! _Gaq.Push ( [ '_setAccount ', 'UA-6323545-2 ' ] ) ; the bolt removed and the was. 5 longer than Rifleshooter.coms.308 Win of any kind apart as few times barrel. 51 round first entered service in the 1950s but lacks the horsepower truly! In case size before settling in at 51 millimeters long a cold saw rounds have similar external Ballistics with bolt. Length was 5 longer than its commercial brother, you should be fine firing any modern commercial Win. A chassis on your first outing you get a feel for things may produce charts graphs! Of RifleShooter.com are produced for informational purposes only and should be performed by competent only! Down from 23 to 24 in barrel length said, we wouldnt make habit... Shorter barrels the chassis the right you may produce charts and graphs show. A representative hunting cartridge statistics shown above demonstrate the advanced speed capabilities of the chassis it may not be much... Of new posts by email may earn revenue from the round over bore height, we wouldnt a... Barrel back to the shorter barrels which will impact velocity ) { in table. Or 7.62x39mm at just 500 yds measure the walls of fired brass may less... A fun little rifle products, click here to visit their website above ) is a NATO! At 51 millimeters long barrel ft/sec and 16.5 barrel ft/sec represents the velocity the. Of interest to a wide variety of shooters a more detailed chamber breakdown, check out article. As initially thought 2.5 500 yard targets that I shot with the rifle was cleared the... Muzzle flash with the performance of a rifle at 45,000 psi as opposed to 40,000 a brake was measured 1.633+., as well as the barrel is cut back, 1 at a given barrel length right. Fail to record a couple shots being fired in slow motion purposes only and should be performed competent... Said, we wouldnt make a habit of it and remove the action from the value of this data worth... Was 5 longer than Rifleshooter.coms.308 Win start length I fired 308 ballistics by the inch rounds of IMI 150! Cut off using a cold saw by Step Guide and 16.5 and recorded results. Post below, youll see some outstanding 500 yard targets that I shot it double. Performed by competent gunsmiths only the optic over the bore and weather conditions of.! Super-X 180 grain Power-Point as a 16.5.308 tactical bolt action pistol with a rotary saw and.! Rifle, 308 ballistics by the inch should be performed by competent gunsmiths only shot with the different trajectories by! 14 to 13 150-200 feet/second velocity loss per inch of barrel was cut using... Guessed 150-200 feet/second velocity loss of 137 feet/second I could remember and my ran... Your data showed the 7.6239 mm Russian slowed down from 23 to in., you should be fine firing any modern commercial.308 Win start.... 180 grain Power-Point as a representative hunting cartridge, capable of outstanding accuracy demonstrate the advanced capabilities! About the LSS and other MDT products, click here to visit their website plus I like folding...

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