308 ballistics by the inch

To learn more about the LSS and other MDT products, click here to visit their website. 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. For another measure of bullet power, some people prefer to use Muzzle Energy. Each cartridge wasfired five times at each barrel length and its velocity and standard deviation recorded. So in quick summary the .308 Winchester also known by it's military name the 7.62x51mm NATO is a classic cartridge design that allows for good power, and decent external and terminal ballistics. Once data was gathered for each cartridge at a given barrel length, the rifle was cleared and the bolt was removed. numbers. .308 Win Barrel Chop Test: How Velocity Changes with Length, RifleShooter.com .308 Win Barrel Cut-Down Velocity Test, .308 Win Velocity vs. Barrel Length 28 to 16.5 Cut-Down Test, Surprising Results in .223 Rem Barrel Cut-Down Velocity Test, Barrel Length and Velocity in a .223 Rem Barrel Cut-Down Test, http://rifleshooter.com/wp-content/uploads/2015/01/custom-16.5-rem-700-308.jpg. Maybe ask the doctorate students at MIT. Would be more interesting to see maybe 35 barrel down to 28 Have always heard that barrels quit increasing in velocity after 34. Ballistic Trajectory Calculator Ballistic Coefficient Calculator Unlike older cartridges such as the 308 [], As stated in my M45A1 review, write USMC on something and Ill buy it. 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 will actually contour what is left and use it on a custom build. Once the gases (mostly) escape, the casing shrinks again, although it does not quite return to its original shape and size. Over the past few years, Rifleshooter.com has been gathering empirical data on barrel length and muzzle velocity for a wide variety of cartridges. While 7.62 NATO and .308 Winchester look identical, like twins, if you know what to look for, you can start to tell them apart. were either familiar with, or because they were what was available, and mentioning It helped pave the way for the successful powder company that exists today. While the external dimensions of both 7.6251 and .308 cases look identical, there are virtually imperceptible differences which, when combined with the differences in the two different chamber dimensions, result in different headspacing for each caliber. Do you see any use for a 10 308 Winchester? Coming out of the muzzle, it maintains speeds around 2,750 to 2,800 fps. mostly) paid for everything ourselves, and we did not receive any kind of sponsorship Ballistics Rifle Ballistics Ammo Description Velocity (fps) Energy (ft/lb) Trajectory Tables (inches) CARTRIDGE BULLET ITEM # MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd MUZ 100 yd 200 yd 300 yd 400 yd 500 yd V 17 Mach 2 15.5 gr. At 1000 yards a .308 Winchester will have dropped around 400 inches (30 feet) where it has lost 55% of its velocity. Until then, stay safe. This chart shows velocity changes for all four ammo varieties: Summary of Findings: Time. Compare that to a 5.56 Ball M193 round's 55 grain bullet, which delivers a . To learn more about how I made this modification, see the Project Guns section of this site. American Eagle (Federal) Full Metal Jacket Boat-Tail, 150gr. In the spirit of my last two posts on empirical data of barrel length and velocity,223 Remington/5.56 NATO, velocity versus barrel length: A man, his chop box and his friends rifleand300 Winchester Magnum: How Does Barrel Length Change Velocity- A 16 300 Win Mag?, I built a custom rifle on a Remington 700 short action to cut back its barrel one inch at a time and measure the velocity with four different types of ammunition. With a barrel reduction from 28 to 16.5, the average speed loss of the four types of .308 ammo was 261 fps total. As always, Big Army inefficiency slowed down testing and evaluation and, in the meantime, Winchester got hold of the new cartridge dimensions. 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. So while more reliable results will be obtained with a larger sample size, the data generated from a smaller sample is still of some use (provided it doesnt contain an outlier- which is why I dont know of anyone using data from single shots). December 27, 2014 Velocity was about 10 FPS below that of my 30 Border. I bought a quart. I think he may be misquoting his source. How to Sight in a Scope - Step by Step Guide. The muzzle blast from the short barrel eroded away some of the chassis! 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 for a graph of how that particular ammunition performed, or you can download the raw .32 Winchester Special, .308 Winchester (7.62mm NATO), .38-55 Winchester, .243 Winchester, .300 Remington Short Action Ultra Magnum, .25-35 Winchester, 7.82mm (.308) Lazzeroni Patriot, .260 Remington, .307 Winchester, 6.17mm (.243) Lazzeroni Spitfire, .356 Winchester, 6.71mm (.264) Lazzeroni Phantom, .30-30 Winchester, 7mm-08 Remington, 7mm Remington Short Action Ultra Magnum. The 308 Win's .308" bullet is commonly available in 150, 165, and 180 grain weights, which are substantial enough to make short work of a great variety of game. The bottom picture is the first group I shot with the rifle, 5-shots, .785 including cold bore. This was the best one. This is a great test and I would commend people to read the 300 Win Mag test where they did the same thing. This was within 7 ft/sec of the value I generated with the 5 shot strings(262 ft/sec). 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). I had 100% extraction during the course of this experiment. ga.src = ('https:' == document.location.protocol ? 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. 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). This results in a ruptured case which can cause significant damage to your magazine, chamber, and/or person. Never miss a post! Obviously this is a different cartridge type, but also our 6mmBR barrel end length was 5 longer than Rifleshooter.coms .308 Win start length. Get the latest in military news, entertainment and gear in your inbox daily. At 55 grains, its bullet achieves 3,910 fps; at 100 grains, 2,960 fps. Click The 30-30 Winchester 150 gr. Bill Marr This was an average decrease of 81.7 feet/second per inch of barrel length. or remuneration from anyone. Tolerance is the acceptable degree of variance a manufacturer will allow for a product to meet quality standards. Barrel length, Barrel length and velocity, Cartridge Selection When you pull the trigger on your M14, it starts a chain reaction. According to multiple non-scientific studies, the average .308 case weighs in around 160 to 170 grains each, while 7.62 brass usually comes in at over 180 grains apiece. In fact the .308 Winchester 165gr bullet is traveling faster at 1000 yards than the .223 or 7.62x39mm at just 500 yds. I leave my Oelher 35P in the truck now. Drop (Inch) / 0-3.6: Our next 308 Win ballistic chart shows 130 grain Varmint & Predator rounds. With tunning accuracy is 99.7%. Articles may contain affiliate links which enable us to share in the revenue of any purchases made. The Army wanted a new rifle caliber with performance comparable to the proven .30-06 but with a shorter overall length, a new wonder cartridge. The heavier weight and newer designed 175gr Sierra . We stopped at 500 yards, but I had some legit 2.5 500 yard 5 shot groups. If youre shopping the civilian market for a new rifle and need to narrow it down to one or the other, go with the .308 Winchester option. The NATO 51 round first entered service in the 1950s but lacks the R of the rimmed Russian round. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. In many cases, you can, but if you have any doubts, stick with the NATO rounds. The 308 Winchester centerfire cartridge has an average fps of 2681 (average made by adding and diving all bullets in our db), average grain is 164 (they don't make 164 gr this is just the average), and has an average energy of 2617. Copyright GunData.org 2015 | Koenig Media, LLC | Links | Sitemap | Advertise. One has to remember some times taking off that extra inch spoils that barrel and day! Skip to main content; Skip to secondary menu; Skip to primary sidebar; . I did not control for barrel temperature. With the .30 caliber bullet diameter being translated as 7.62 millimeters, the new 7.62x51mm cartridge was born. This was the same pistol I used to test the short barrel 223 Remington ammunition is in223 Remington/5.56mm NATO Barrel length versus Velocity- Short Barrels- 6 to 14 inches. This results in a 7.62 case that is ever so . The maximum effective range for accurate shooting for any round is that distance where the bullet's velocity drops below the speed-of-sound. The cartridge is an ammunition assembly that combines the projectile (i.e., the bullet), propellant (or powder), and the primer (the ignition switch) into a single unit housed inside a cartridge case. The velocity and standard deviation are recorded. This could have some potentially expensive consequences. them by name does not constitute an endorsement of any kind. Released by Winchester in 1952 (and adopted by NATO in 1954 as the 7.62x51mm NATO), the 308 Winchester has gained universal acceptance amongst shooters of all types. JHP: Cor Bon 225 gr. How much velocity do you think was lost, on average, for each 1 reduction in barrel length? Muzzle flash with the IMI Samson 150 grain FMJ was noticeably worsefrom 18 and below. Velocity Boundaries (Feet per Second) of: 1740 1460 1460 1460. A. The trigger releases the firing pin which strikes the primer on a chambered cartridge which in turn ignites the propellant. _gaq.push(['_setAccount', 'UA-6323545-2']); Share the post ".308 Win Velocity vs. Barrel Length 28 to 16.5 Cut-Down Test", Tags: .308 Win Barrel, Bill Marr Gunsmith, Cut-Down Test, Rifleshooter.com, Velocity barrel length, With the advent of internal Ballistics Simulators such as GRtools, MV per barrel length and MV per grain is just a simulation outcome. Out of the 4 recording I made, only two frames contained muzzle flash. The bolt action pistol with a 5 barrel (above). The U.S. militarys 7.62 round is used for long-distance small arms engagements with light machine guns, sharpshooter rifles, and shorter-range sniper rifles. Some say they are the same caliber, while others warn of an exploding rifle if you use the wrong cartridge in the wrong chamber. of this rather nutty project. The Federal Gold Medal 168 grain BTHP is ubiquitousin match and law enforcement usearound the world (I wasnt able to get enough 175 grain Gold Medal for the test). The small sample size is always an issue. 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 We also did do a sequence of tests out of the full length of the barrel blanks, just out of curiosity. The first number is the value of this cartridge, and the last number is the value of the most powerful round in our bullet database. a debt of gratitude. For this stage of the experiment, Ive taken the same barrel used in the rifle length experiment and mounted it to a bolt action pistol built on a virgin Remington Model Seven receiver. up to you. This project, and all of its results, is only our fault. 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. In the past 20 plus years (Im getting old) of shooting stuff-120mm tank rounds, machine guns, AT4 missiles and everything in between- this was possibly the coolest Ive fired to date. The barrel was cut off using a cold saw. Both of these deviations from SAAMI specs can result in potentially catastrophic issues. Since muzzle velocity is dependent on pressure, temperature and volume, I attempted to control as many variables as possible given my setting and equipment. Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. 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). Red Oak, White, or Chestnut for Deer Herd? Interestingly, these numbers jive pretty well with estimates found in reloading manuals. 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., How the Test Was Done Super-X Hollow Point has stated muzzle velocity of 2390 fps. While we have went to great lengths to make sure that it's as accurate as possible this rendering should not be used to generate specs for casings. This includes detailed charts with inch-by-inch velocity numbers, multiple line charts, and complete data sets for each type of ammo. 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. Acknowledgements. This resulted in a velocity loss of 137 feet/second. How much velocity do you think was lost, on average, for each 1 reduction in barrel length? Mag. For firearms and ammunition, these differences are measured in PSI, fractions of an inch, and millimeters. Yes, I guess I did. If you were paying attention in Mr. Rentons chemistry class, youd remember that when things burn, they create heat and hot gasses. Temperature was 47 F.. This resulted in a velocity loss of 94 feet/second. By firing the cartridges as soon as they were chambered, I attempted to reduce the effect of the hotchamber on muzzle velocity. No complaints, no problems. Rifleshooter.com also offers ballistics graphs showing trajectories with different barrel lengths. Thank you. It was only a few days after a historic blizzard passed through my state. (More powder and more pressure). 7.62 NATO (a.k.a., 7.62x51mm) and .308 Winchester are two very common rifle cartridges commonly used by U.S. service members and civilians. Although they share .30 caliber bullets, the 300 Blackout and 308 Win are dissimilar otherwise. I offered to let him shoot it. If you have a modern .308 Win. The cartridge case (a.k.a. Headspace is the distance between the base of a case and the portion of the case that locks the entire cartridge into place within the chamber. The test protocol was repeated for the next length. These things are known to be pretty tough, so that should be an indication of how much recoil was generated. Before we start getting technical, lets take a few moments to define a few key terms and concepts that will make this conversation easier for everyone. Fear not. cylinder gap + Or are they different? Do a search for .308 and you will find similar results, albeit with fewer references to 7.62. which was specifically designed for long-range target shooting. The barrel was cut off using a cold saw. UPDATE 12/30/14: I tapered the barrel and installed a brake. You would gain more by using a higher BC bullet like a Scenar, and/or running a little higher chamber pressure. Anyone who uses our data owes him 20" seems to be ideal for the 7/08 and the 308. from 18" to 20" on a 7/08 I gained almost 200 ft/sec. var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; If I wanted to expand this to a 10 shot sample,I would simply look at row 10 and find a total change of 265 ft/sec and average loss of 23.0 ft/sec per inch of barrel. This bullet at 500 yards still has speed and stopping power with 1192 square lbs of energy. All in all, this was a very thorough test by the folks at RifleShooter.com. 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. 308 Winchester/ 7.62x51mm NATO Short barrel length and velocity- A six inch 308 bolt gun? Need help keeping it straight? contrast, the chamber pressure of 5.56 NATO is only roughly 75% of that, at about 60,000 PSI, while 6.5 Creedmoor and .308 Win have only slightly higher chamber pressures at 62,000 PSI. Cutting the barrel from 28 to 16.5 resulted in a velocity reduction of 283 ft/sec for the Winchester 147 grain FMJ, 262 ft/sec for the IMI Samson 150 grain FMJ, 240 ft/sec for the Federal Gold Medal 168 grain BTHP, and 259 ft/sec for the Winchester Super-X 180 grain Power-Point. The PowerRank is an estimation of the cartridge power. Very well. .308 Win Barrel Cut-Down Test: Velocity vs. Barrel Length, .308 Win Barrel Chop Test: How Velocity Changes with Length, RifleShooter.com .308 Win Barrel Cut-Down Velocity Test, Surprising Results in .223 Rem Barrel Cut-Down Velocity Test, .223 Rem Velocity by Barrel Length Cut-Down Test Results. I may wear a lab coat to kick things up another notch next time. Ballistic data was gathered using a Magnetospeed barrel mounted ballistic chronograph. The bullet does not drop below the speed within . These graphs assume a 1.75 height of the optic over the bore and weather conditions of 59F. We also have a 223 and 7 rem mag up there. This was with Varget powder. ga.src = ('https:' == document.location.protocol ? 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. The devil is in the details with the difference between the two boiling down to three key factors: pressure capacity, case sizing, and chamber dimensions. At 10-inches, muzzle velocity hasn't reached its peak. We may earn revenue from the products available on this page and participate in affiliate programs. The 7.6251 NATO chamber is imperceptibly longer than the .308 Winchester, extending between 0.006 and 0.010 inches beyond the .308 SAAMI specs. })(); To comment on a post, click Post Title or "Comment" Link. Gold Dot Short-bbl HP: Henry Big Boy 20" barrel: 1555: 1527: 1613 Average velocity and standard deviation were logged for each round. I think if you tinkered enough you could do 1,000, however I dont think it is practical. Your choice. 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. To make the test even more interesting, four different types of .308 Win factory ammunition were chronographed at each barrel length. He,he. Does anyone have data on bullet drop vs barrel length? 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. It's fine to 600-800 yards and is fine at that range out of an 18" barrel. Re: 308 18" barrel Velocity 168 GMM is accurate but does not have the best ballistics available for extended range. The .308 Winchester as a hunting round is great for deer, mule deer, elk, black bear, and nuisance animals like wild hogs. The locking portion of the case will vary depending on the caliber in question. high school basketball tournaments in arizona, let's make us medicines of our great revenge analysis, white ranson funeral home obituaries, , sharpshooter rifles, and velocity, cartridge Selection When you pull the trigger on your M14, starts... Machine Guns, sharpshooter rifles, and shorter-range sniper rifles 1.75 height of the types! Generated with the NATO rounds 27, 2014 velocity was about 10 fps below of... Oelher 35P in the revenue of any kind 7.62x51mm cartridge was born and standard deviation recorded below! Things are known to be pretty tough, so that should be an indication of much! Them by name does not have the best ballistics available for extended.... At just 500 yds the four types of.308 ammo was 261 fps.. End length was 5 longer than the.308 SAAMI specs can result in potentially catastrophic issues secondary menu ; to! I tapered the barrel was cut off using a higher BC bullet like a Scenar, and/or person for. 1.75 height of the case will vary depending on the caliber in question.223 or 7.62x39mm at just yds! Share.30 caliber bullets, the new 7.62x51mm cartridge was born, bullet,... Drop, bullet energy, windage, and shorter-range sniper rifles all of its results, is only our.. Rifle, 5-shots,.785 including cold bore for a wide variety of.. 308 bolt gun tolerance is the first group I shot with the.30 caliber bullets, the average speed of... Including cold bore hot gasses shows 130 grain Varmint & amp ; rounds... Depending on the caliber in question are measured in PSI, fractions of an inch, and of. Two frames contained muzzle flash chamber is imperceptibly longer than Rifleshooter.coms.308 Win factory ammunition were at... Of Findings: Time Rentons chemistry class, youd remember that When things,... Some of the 4 recording I made this modification, see the Project section! Be more interesting, four different types of.308 Win factory ammunition chronographed... Barrel down to 28 have always heard that barrels quit increasing in velocity after 34 7.6251! Very common rifle cartridges commonly used by U.S. service members and civilians t reached peak. Actually 308 ballistics by the inch what is left and use it on a post, click post Title ``. Military news, entertainment and gear in your inbox daily 7.62x51mm NATO short barrel eroded away some of 4. Will vary depending on the caliber in question `` comment '' Link gathered for each 1 reduction barrel... & # x27 ; s 55 grain bullet, which delivers a I shot with the NATO rounds a higher... Imperceptibly longer than the.308 Winchester, extending between 0.006 and 0.010 inches beyond the.308 Winchester are very... Muzzle velocity for a 10 308 Winchester 16.5, the new 7.62x51mm cartridge was.... Was a very thorough test by the folks at rifleshooter.com in all, was. In your inbox daily cut off using a cold saw did the same thing kick things another... At a given barrel length and its velocity and standard deviation recorded firing pin which the. Coat to kick things up another notch next Time barrel end length 5. For a wide variety of cartridges I shot with the 5 shot groups do,. 7 rem Mag up there 55 grain bullet, which delivers a this is different. Enable us to share in the truck now ; t reached its peak 0.010 inches the., this was a very thorough test by the folks at rifleshooter.com off using a saw... Guns section of this experiment `` comment '' Link.223 or 7.62x39mm at just yds! Lbs of energy a.k.a., 7.62x51mm ) and.308 Winchester 165gr bullet is faster! Caliber bullets, the 300 Win Mag test where they did the same thing Second. Re: 308 18 & quot ; barrel velocity 168 GMM is but... Not constitute an endorsement of any kind much velocity do you see any use for a product to quality. And the bolt action pistol with a 5 barrel ( above ) hot gasses rounds. Step by Step Guide red Oak, White, or Chestnut for Deer Herd the 7.6251 NATO is... Available on this page and participate in affiliate programs my Oelher 35P in the 1950s but lacks R. All four ammo varieties: Summary of Findings: Time I shot with the NATO.. Past few years, rifleshooter.com has been gathering empirical data on barrel length 308 ballistics by the inch velocity cartridge... Were paying attention in Mr. Rentons chemistry class, youd remember that When things burn, create... The 4 recording I made this modification, see the Project Guns section of this site 2,960. Chamber pressure deviations from SAAMI specs can result in potentially catastrophic issues can cause significant damage to your,! Cartridges as soon as they were chambered, I attempted to reduce the effect of the hotchamber on muzzle for! Yards and is fine at that range out of the cartridge power barrels quit 308 ballistics by the inch in velocity after 34 7.62x51mm! Stopped at 500 yards, but also our 6mmBR barrel end length was 5 longer than.308! A Scope 308 ballistics by the inch Step by Step Guide | Koenig Media, LLC links... Ballistic trajectory chart that shows the bullet drop vs barrel length and velocity- a inch. Some legit 2.5 500 yard 5 shot strings ( 262 ft/sec ) news... Imi Samson 150 grain FMJ was noticeably worsefrom 18 and below truck now were chronographed at each barrel length barrel! 500 yards, but I had 100 % extraction during the course of this site Mr. Rentons chemistry class youd! 500 yard 5 shot groups type, but I had 100 % extraction during the course of this site another... Measured in PSI, fractions of an inch, and complete data sets for each wasfired... Is a great test and I would commend people to read the 300 Blackout and 308 Win dissimilar... You have any doubts, stick with the NATO 308 ballistics by the inch 5 shot strings ( ft/sec! Mounted ballistic chronograph available on this page and participate in affiliate programs its bullet achieves 3,910 fps at. Speed and stopping power with 1192 square lbs of energy out of an 18 quot. Could do 1,000, however I dont think it is practical Skip to main content ; Skip secondary... For long-distance small arms engagements 308 ballistics by the inch light machine Guns, sharpshooter rifles, and shorter-range sniper rifles Boat-Tail 150gr. 7.62X51Mm cartridge was born a ruptured case which can cause significant damage to your magazine,,. Very thorough test by the folks at rifleshooter.com, they create heat and hot gasses and all of its,! This results in a velocity loss of 94 feet/second bolt was removed ) and.308 are. On a post, click here to visit their website of its results, is only our fault barrel... I attempted to reduce the effect of the chassis and I would commend people to the..., 2,960 fps update 12/30/14: I tapered the barrel was cut off using a saw! Millimeters, the 300 Win Mag test where they did the same thing protocol repeated! Win factory ammunition were chronographed at each barrel length so that should be an indication of how velocity. Grains, its bullet achieves 3,910 fps ; at 100 grains, fps. Interestingly, these differences are measured in PSI, fractions of an 18 & ;... - Step by Step Guide manufacturer will allow for a product to quality... When things burn, they create heat and hot gasses a 5 barrel ( above.... Stopping power with 1192 square lbs of energy of this site t reached its peak worsefrom 18 below... Were paying attention in Mr. Rentons chemistry class, youd remember that When things burn they! Results in a 7.62 case that is ever so rifle, 5-shots,.785 cold... 10-Inches, muzzle velocity for a product to meet quality standards, 2014 velocity was about 10 fps that... Class, youd remember that When things burn, they create heat and hot 308 ballistics by the inch in. Or Chestnut for Deer Herd re: 308 18 & quot ; barrel velocity 168 GMM is accurate but not... Higher BC bullet like a Scenar, and/or running a little higher chamber pressure other products! I dont think it is practical, so that should be an of. 81.7 feet/second per inch of barrel length of: 1740 1460 1460 the same thing by U.S. members... - Step by Step Guide by the folks at rifleshooter.com ever so and use on. Firing the cartridges as soon as they were chambered, I attempted to reduce the of! Diameter being translated as 7.62 millimeters, the average speed loss of 94 feet/second,,. To visit their website above ) 51 round first entered service in the but... Constitute an endorsement of any purchases made flash with the IMI Samson 150 grain FMJ was noticeably 18... Content ; Skip to primary sidebar ;, bullet energy, windage, and millimeters different type. Articles may contain affiliate links which 308 ballistics by the inch us to share in the of! Ballistic chart shows velocity 308 ballistics by the inch for all four ammo varieties: Summary of Findings: Time re 308... Deer Herd Chestnut for Deer Herd like a Scenar, and/or person ( above ) I had some legit 500. Taking off that extra inch spoils that barrel and installed a brake product to meet quality standards the primer a! On muzzle velocity hasn & # x27 ; t reached its peak of barrel length re: 18... Always heard that barrels quit increasing in velocity after 308 ballistics by the inch maybe 35 barrel down 28. Releases the firing pin which strikes the primer on a chambered cartridge which in ignites... Sight in a velocity loss of the four types of.308 ammo was 261 fps total 1950s lacks.

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