The 7.62x39 mm AR configuration uses the same bolt carrier as 5.56 variants, but a different bolt, firing pin, extractor and magazine are required for the larger cartridge dimensions. I used to ...Dec 7, 2020 · The heavier duty 7.62 NATO is still used in the military due to the extra power and range it offers. An M14 hard at work in Afghanistan. When comparing the 5.56 M885A1 load and the 7.62 NATO M80 round, we see the big differences upfront. 7.62 retains over 1,700 foot-pounds of energy at 500-yards versus 5.56 which hits 950 foot-pounds at 500-yards. Mar 31, 2020 · Our Brownells Firearm Support Technician with the skinny, Caleb Savant, is back to talk about two popular rifle cartridges: .308 Winchester and 7.62x51mm NAT... It’s pretty obvious that the later .280/30 British/7mm Mk.1Z load produces substantially more recoil energy than other intermediate caliber weapons. Versus the sometimes challenging-to-control 7.62x39mm, for example, it produces 42% more. However, even the turbocharged Mk.1Z still produces significantly less recoil energy than …The 308 is the civilian version of the NATO 7.62×51. The 7.62×51 was adopted by the US military in 1951 and the civilian version, the .308, was introduced in 1952. It fires a .308 caliber (inches) bullet and has a …Thanks for your support. 7.62×39 vs 308 vs 7.62x54R: History The French Army became the first military force in the world to use smokeless ammunition on a large scale when they adopted the 8mm Lebel cartridge and Lebel Model 1886 Rifle in the late 1800s. Jan 21, 2024 · Freebore and leade angle are where .308 and 7.62×51 NATO chambers seem to differ. For .308s, JGS shows .900 freebore of .3100 diameter, with a 1-45 leade angle. Chambers in 7.62×51 NATO are cut with 1.355 of 3.095 freebore, a 5-40 leade angle. Government diagrams confirm that steep leade. Live The Armory Life. For example, costs of 300 Blackout rounds range from $.60 per round to $2.00 per round. That gives it an average of $1.30 per round. In comparison, the .308 ammo costs range from $.35 per round to $1.50 per round with an average of $.90 per round. That makes the 300 Blackout about 45% more per round on average.I would have guessed 150-200 feet/second velocity loss between 24″ and 16.5″ barrel lengths. It seems like the 7.62x39mm Russian performance is optimum at a 16″ barrel length. Your data showed the 7.62×39 mm …Nov 2, 2021 · Measuring the bullet right as it exits the muzzle, .308 Winchester packs a whopping 2,727 foot-pounds of energy on average, compared to 1,525 foot-pounds for 7.62x39mm. Right away, the difference is clear. But at 300 yards, a .308 round still packs 1,186 foot-pounds of energy, while the 7.62x39mm round drops to a mere 630 foot-pounds. Sep 19, 2014 · Greatest Cartridges: 7.62×51 NATO or .308, Either Way it Packs a Punch. Tom Turpin. -. September 19, 2014. 0. The 7.62x51 NATO or .308 Winchester offers nearly the same ballistics as a .30-06, but in a more compact cartridge. The 7.62×51 NATO or .308 Winchester offers nearly the same ballistics as a .30-06, but in a more compact cartridge. Find service members and veterans like you, discuss military life, and share professional opportunities on the largest military network.The 7.62×39 has a case length of 1.524 inches which makes it longer than the 300 Blackout 1.368-inches case length. This difference affects the case capacity of each round. The case capacity of the 7.62×39 is 35.6 gr H20 against that of the 300 Blackout, which is 26.5 gr H20.Mar 29, 2021 ... 30 caliber bullet diameter being translated as “7.62 millimeters”, the new 7.62x51mm cartridge was born. As always, Big Army inefficiency slowed ...Energy. Furthermore, the muzzle energy of a .243 Winchester round averages out to 1950 ft-lb, while a 7.62x39mm round averages out to about 1590 ft-lb. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot.Dec 14, 2021 · Downrange Comparison. When it comes to performance downrange, the 7.62x39 Vs. .300 Blackout differences show, despite the fact both cartridges are .30-caliber—.308-inch. That diameter is one of the sweet spots for long-distance connections according to some. The 7.62x39 mm SAAMI specs allow it to go slightly wider, which may explain a slight ... The .308 Winchester chamber headspace is between 1.630 and 1.6340 inches. The 7.62x51mm NATO is between 1.6355 and 1.6405 inches. While the published numbers show about six-thousandths of an …Are you considering retiring at the age of 62? If so, one important aspect to consider is your healthcare coverage. Many people wonder if they can get Medicare at this age, and wha...The 7.62 mm designation refers to the internal diameter of the barrel at the lands (the raised helical ridges in rifled gun barrels). The actual bullet caliber is often 7.82 mm (0.308 in), although Soviet weapons commonly use a 7.91 mm (0.311 in) bullet, as do older British (.303 British) and Japanese (7.7×58mm Arisaka) cartridges. However, the 7.62 x54R has a maximum pressure of 56,565 psi. Also, the bullet diameters used by the 7.62x54R and the 30-06 are somewhat different, with the 7.62x54R using a 0.312″ diameter and the 30-06 using a 0.308″ diameter. As both cartridges are labelled as 7.62 mm, this can lead to much misunderstanding among novice gun owners (30-06 ...Aug 30, 2019 · Commercial .308 Win. came first. The two ended up differently. Similar to the 5.56 NATO vs. .223 Rem., the difference between .308 Win. and 7.62 NATO is in the chamber, but it’s in a different place. The difference in these two isn’t the throat, it’s the headspace. NATO is ridiculously longer. Jul 14, 2021 · With higher speeds and better ballistic coefficients (in most cases), the 6.5 Grendel appears to be the superior long-range cartridge. In one comparison shown above, the 7.62x39mm drops over 20 inches more than the 6.5 Grendel. In the other, it only drops 11 inches more, but this is still a significant difference. Mar 31, 2020 ... Our Brownells Firearm Support Technician with the skinny, Caleb Savant, is back to talk about two popular rifle cartridges: .308 Winchester ...So the 7.62×39 is a 30 caliber bullet with an intermediate cartridge when compared to an actual hunting cartridge like the .308 Winchester from a 30-30 bolt-action rifle. Being an intermediate cartridge, it has a lower velocity averaging 455 fps less than a .308 Win with the same weighted 125 gr bullet. Although it wasn’t specifically ...In today's video we will see what the difference is between the 308 Winchester and the 7.62x51 or 7.62 NATO by shooting each at steel targets. The steel is a...And they both suck at long range, with most shooting topping out at around 300-400 yards, with the 7.62×39 winning out in terms of overall range. US Palm AK. So to decide on this one, we have to look at another factor: ammo cost. And this is one where the 7.62×39 absolutely blows .300 Blackout out of the water.Though they are similar in overall size, the .300 Blackout has a slightly longer overall length (2.26″ vs 2.2″), but the 7.62x39mm has a slightly longer case length (1.528″ vs 1.368″). The picture above compares a Norinco 7.62x39mm cartridge with a 122gr FMJ bullet to a Sellier & Bellot .300 Blackout cartridge with a 220gr subsonic FMJ ...7.62 x39 vs 308 readingandwritingprojectcom.web.fc2.com. Home; uncatigorized; 7.62 x39 vs 308; Rated 3.3 /5 based on 72 customer reviews 8 May, 2017. premiere vs after effects victoria secret commercial song is 10 mbps fast enough for gaming what does a penis ...The straight answer to this question is yes, you can fire common 7.62X51 military ammo in any currently produced rifle chambered for .308 Winchester. However, there is more than one reason for this evaluation. The 7.62×51 NATO cartridge is specific and it is built for military specifications. The reason is to make the round able to operate ... Mar 29, 2021 ... 30 caliber bullet diameter being translated as “7.62 millimeters”, the new 7.62x51mm cartridge was born. As always, Big Army inefficiency slowed ...Aug 24, 2023 ... In today's video, we will be comparing the performance of the 7mm-08 Remington to the 308 Winchester on mild steel.The 7.62×39, the .308 Winchester, and the 7.62x54R are all well suited for hunting medium game like feral hogs, mule deer, whitetail deer, black bear, or fallow deer at short to moderate range. The .308 Winchester has a small, but definite advantage over the others here because of its generally better accuracy and … See moreAug 7, 2020 ... Comments229 ; 5.56 vs 7.62 vs 308 VS BALLISTICS GEL, CINDER BLOCK AND PAPER PLATES PENETRATION TEST. Tools Of Freedom · 142K views ; 5.56 vs 7.62: ...Smokehouse69 said: A few rounds of .308 probably won't hurt much, but a steady diet is going to result in the purchase of a broken shell extractor eventually. I agree, mine shot .308 & 7.62 with no problems for awhile, untill oneday it fired the.308 round, then sheared half of a casing upon ejection, of course the other half of the casing was ...Aug 9, 2023 · A Mikhail Kalashnikov-supervised team developed the AK-74. The firearms come from the same family tree, but the differences are significant. The generation gap grows even wider when comparing 5.45×39 VS 7.62×39 cartridges. Cartridge Size Comparison: 5.45×39 VS 7.62×39 Most .308 rifles have a 20-inch barrel. Here’s how they stack up. A standard 150-grain load in a .308 with a 20-inch barrel is going to be around 2,700 fps. a 7.62x54R in a 20-inch barrel, such as a Mosin carbine, clocks in at around 2,600fps with a similarly weighted bullet. So, all things equal, the Mosin is a tad under a .308.No (7.62 NATO only) Yes (.308 and 7.62 NATO) So what you have is a civilian cartridge that has a thinner brass case and a shorter headspace tolerance, which produces a higher chamber pressure. Compare that to the military 7.62 NATO cartridge that has a thicker brass case with a slightly longer headspace tolerance that produces a …As you can see based on these measurements, while the rounds are very close in diameter, they’re still very distinct, with …Aug 31, 2023 · Conclusion: Picking Your Winner. Both the 7.62×39 and the 30-30 have their merits and shortcomings. The 7.62×39 shines in affordability and versatility but doesn’t offer the knockdown power that the 30-30 boasts. Conversely, the 30-30 excels in hunting scenarios, particularly for larger game, but usually comes at a higher cost. Proven to withstand recoil from a .22LR to a .50BMG and everything in between. Easily passes U.S. Military drop test requirements. ... .308 / 7.62. Illumination Source. Tritium. Power Source. Tritium. Adjustment. 2 clicks per inch @100 yards. Eye Relief. 1.5 in. (38.1mm) Exit Pupil.The 7.62 mm designation refers to the internal diameter of the barrel at the lands (the raised helical ridges in rifled gun barrels). The actual bullet caliber is often 7.82 mm (0.308 in), although Soviet weapons commonly use a 7.91 mm (0.311 in) bullet, as do older British (.303 British) and Japanese (7.7×58mm Arisaka) cartridges.However, there are some guidelines to follow: 7.62 NATO ammunition can generally be safely fired in a .308 WIN chambered rifle. This is because 7.62 NATO is typically loaded to lower pressures, and .308 WIN rifles are built to withstand higher pressures. Firing .308 WIN ammunition in a 7.62 NATO chambered rifle is generally not recommended.Jan 21, 2024 · Freebore and leade angle are where .308 and 7.62×51 NATO chambers seem to differ. For .308s, JGS shows .900 freebore of .3100 diameter, with a 1-45 leade angle. Chambers in 7.62×51 NATO are cut with 1.355 of 3.095 freebore, a 5-40 leade angle. Government diagrams confirm that steep leade. Live The Armory Life. The .300 AAC Blackout and the 7.62x39mm Soviet share ballistic similarities with the .30-30 Win., but while hunters laud the .30-30 as an excellent deer cartridge, they rarely give the same credit to the Blackout or the Soviet. The origins of each cartridge help account for that disparity. The Blackout has only been around since 2011 while the ...The average price of a 7.62×39 round on the market is $0,36. Meanwhile, a 300 Blackout pellet costs up to 1$, which is nearly three times higher than the 7.62×39’s price. The premium 300 Blackout versions may cost around $1.5 to $2. Therefore, the 7.62×39 is undoubtedly a more affordable option for beginners.Jan 9, 2018 · First, most reloading die sets come with two expander balls (one for use with 0.308"-diameter bullets, the other being 0.311") due to the fact that most, but not all, 7.62x39 mm-chambered rifles ... A: When fired from a standard M14 rifle, the 7.62 NATO ball 149gn FMJ boattail bullet has a muzzle. Left to right, 7.62×39, 7.62×51 NATO, 7.62×54 Russian. velocity of 2800fps and muzzle energy of 2594 ft/lbs. When fired from a standard AKM rifle, the 122gn Soviet round has a muzzle velocity of 2340fps and energy of 1483 ft/lbs.Let’s chat about the ballistic differences between 7.62×39 VS 308. As you’ll see, the 308 carries significantly more power out past 200 yards. That’s not just an advantage in velocity, but in energy as well. In …A 7.62x39 123-grain bullet at 2,350 feet per second (fps) exits the muzzle with about 1,500 foot-pounds of energy compared with a 5.56 55-grain bullet exiting at 3,250 fps and carrying about 1,300 ft-lbs. That’s only 200 ft-lbs of difference, or about 15 percent. However, the frontal diameter of the .30-caliber projectile is considerably ...Energy. Furthermore, the muzzle energy of a 7.62x39mm round averages out to 1590 ft-lb, while a 7mm-08 Remington round averages out to about 2450 ft-lb. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot.For example, costs of 300 Blackout rounds range from $.60 per round to $2.00 per round. That gives it an average of $1.30 per round. In comparison, the .308 ammo costs range from $.35 per round to $1.50 per round with an average of $.90 per round. That makes the 300 Blackout about 45% more per round on average.DayZ Wiki is a FANDOM Games Community. Follow on IGJoin Fan Lab. 7.62x39mm intermediate cartridge. Used in select rifles. In-game description 7.62x39mm Rounds are a type of ammunition in DayZ. They are found individually, packed in boxes, or pre-loaded in magazines. Empty the box to receive 20 usable 7.62x39mm rounds.Most .308 rifles have a 20-inch barrel. Here’s how they stack up. A standard 150-grain load in a .308 with a 20-inch barrel is going to be around 2,700 fps. a 7.62x54R in a 20-inch barrel, such as a Mosin carbine, clocks in at around 2,600fps with a similarly weighted bullet. So, all things equal, the Mosin is a tad under a .308.The 5.56 is easier to control, recoils softer, and makes it easier to rapidly engage targets and put multiple rounds on target. Concussion is a major difference when barrel lengths are compared. A 16 inch 5.56 barrel is much more comfortable than a 16 inch 7.62 NATO. The difference is almost night and day.Ruger have also produced runs of the bolt action M77 and semi-automatic Mini 30 in 7.62x39 although bore sizes are .308”, forcing .311” projectiles down to .308” at the chamber. Un-tuned, these rifles (scoped) often produce accuracy of between 1.5 and 3 MOA, similar to the SKS and AK-47, giving acceptable accuracy out to ranges of 100 to ...The company’s Black load has a 60-grain V-Max bullet that leaves the firm’s test barrel at 2,810 fps. With a 200-yard zero, the drop at 500 is only 58.8 inches. Muzzle velocity is higher in the 5.45×39 mm and, when combined with the lighter bullet, drop at 500 yards is roughly 40 inches less than the heavier 7.62 bullet.Support us on Patreon https://www.patreon.com/whoteewhoBushnell Banner Scope here: https://amzn.to/2KrtwejWeaver scope rings here: https://amzn.to/2ji7gr3SUB...Feb 16, 2012 ... As was noted before, 7.62 is european metric, .308 is inch and US British and Canadian. My favorite is the 7.62mm X 25mm, which of course is a ...The 7.62×39 has a little more kinetic energy, but the .300 Blackout has a slightly flatter trajectory due to higher ballistic coefficient of the .300 Blackout ...The .308 Winchester and 7.62 x51mm NATO are both firing a .308-caliber bullet from very similar cartridge cases. 308 Win ammo has a slightly higher pressure when compared to the 7.62x51 mm NATO. But the 7.62 x51mm NATO case has a slightly thicker case (thicker walls/thicker brass) and slightly longer headspace than 308 Winchester brass.Case length: The 7.62x39mm has a shorter case length than the .308 Winchester, resulting in different cartridge dimensions. Overall cartridge length: The .308 Winchester has a longer overall cartridge length, allowing it to accommodate heavier and longer bullets. Bullet weights: The .308 Winchester generally offers a wider range of bullet ... Mar 22, 2023 · As you can see based on these measurements, while the rounds are very close in diameter, they’re still very distinct, with 7.62x39mm being significantly shorter, giving it a much lower case capacity. It also has a significantly lower max pressure rating. By The Numbers: Ballistic Comparison 7.62×39 Vs. .308 Winchester Ballistics Case length: The 7.62x39mm has a shorter case length than the .308 Winchester, resulting in different cartridge dimensions. Overall cartridge length: The .308 Winchester has a longer overall cartridge length, allowing it to accommodate heavier and longer bullets. Bullet weights: The .308 Winchester generally offers a wider range of bullet ... Our Brownells Firearm Support Technician with the skinny, Caleb Savant, is back to talk about two popular rifle cartridges: .308 Winchester and 7.62x51mm NAT...Jul 7, 2021 ... .30-30 vs 7.62×39: Physical Differences ; Bullet Diameter .308 inches .311 inches (Variations) ; Rim Diameter .506 inches .447 inches ; Case Length ...The designation of this case was the T65, and a series of experiments continued to provide the data that eventually became the 7.62 mm NATO cartridge. Beginning with the T65 at 47 mm in length ...As others have said, 7.62x51 is safe in a .308. What I haven't seen anyone mention is that some 7.62 is a tight fit in some .308 chambers, this isn't a safety issue but can cause malfunctions. My Tikka .308 runs smoothly with civilian ammo, but it takes some force to close the bolt on surplus military ammo and extraction also requires some muscle.The NATO .308 is 7.62x51. the Mosin and SVD use 7.62x54. in fact, you can sometimes get a .308 to seat in a Mosin, it just won't extract. Also, most .308 is made to a higher spec, better quality and consistency than WWII surplus 54r, so it tends to be more reliable. What this means in game is that it's mostly personal preference. Oct 3, 2020 · In this cartridge comparison, we are going to look at two cartridges that many people probably have never thought about comparing; The 7.62×39 vs the .308. This is an interesting comparison for several reasons. Love Ammo? Get My Cartridge Comparison Handbook! Feb 17, 2024 · What does the “x39” in 7.62×39 mean? The “x39” designation refers to the cartridge’s dimensions – 7.62mm diameter and 39mm length. What is the ballistics performance of 7.62×39 compared to other calibers? 7.62×39 has a similar ballistics performance to the .30-30 Winchester cartridge. Is 7.62×39 a military round? 7.62×39 Vs. .308 Winchester: Applications Hunting. Given that both have been popular hunting cartridges in the U.S., perhaps a better comparison would be …The difference between a 308 and a 7.62 x39 is that the former is a rifle cartridge while the latter is an intermediate cartridge. Both are popular choices for hunting, but they have different purposes. A 308 is typically used for long-range shooting, while a x39 is more versatile and can be used for both long-range and close quarters combat ...As illustrated in the chart, .30-06 Springfield rounds - on average - achieve a velocity of about 2820 feet per second (fps) while 7.62x39mm rounds travel at a velocity of 2360 fps. To put this into perspective, a Boeing 737 commercial airliner travels at a cruising speed of 600 mph, or 880 fps.Conclusion: Picking Your Winner. Both the 7.62×39 and the 30-30 have their merits and shortcomings. The 7.62×39 shines in affordability and versatility but doesn’t offer the knockdown power that the 30-30 boasts. Conversely, the 30-30 excels in hunting scenarios, particularly for larger game, but usually comes at a higher cost.7.62x39 vs 308: Which Is The Best 30-Caliber For You? ammodotcom 8.15K subscribers Subscribe Subscribed Like Share 20K views 1 year ago #762x39 #308 For $20 off your next ammo purchase, …Apr 11, 2023 ... In today's video, we will be comparing the performance of the 7.62x39 and the 5.45x39 on mild steel. Testing was setup at 50 yards using ...308 is at least half an inch longer than the 7.62x39mm, offering extra powder that affects range, trajectory, and recoil. Therefore, a pressure difference ...Jul 8, 2019 · The 7.62×51 again. It may have a heavier projectile, but gravity affects bullets of all weights equally. What matters is the 7.62×51’s faster muzzle velocity, which permits its bullet to cover more ground in less time. The 7.62×51 exhibits a bullet drop of about 14 inches at 300 yards, while the 7.62×39 drops nearly 24 inches in the same ... One drawback is that the cartridge has more bullet drop at longer ranges compared to other calibers. Can 7.62×39 be used in a bolt-action rifle? Yes, there are bolt-action rifles designed to chamber 7.62×39 ammunition. How does 7.62×39 compare to .223/5.56mm? 7.62×39 typically has more stopping power compared to .223/5.56mm.From an external dimension standpoint, the .308 Winchester cartridge case and the 7.62 NATO (7.62 x 51 mm) are the same thing. In fact, the 7.62 was developed using the general design of the .308 as its ‘parent’ case. The difference between the two, beyond the outside dimensions, is basically...Aug 24, 2023 ... In today's video, we will be comparing the performance of the 7mm-08 Remington to the 308 Winchester on mild steel.CZ 527 7.62×39 $673.60 guns.comWinchester 7.62×39 Ammo $35.99 sportsmans.com. We shot from a concrete bench at targets at 100 meters (109 yards), utilizing Bullseye Camera Systems’ AmmoCam Long Range Edition to keep eyes on the targets.The .308 Winchester chamber headspace is between 1.630 and 1.6340 inches. The 7.62x51mm NATO is between 1.6355 and 1.6405 inches. While the published numbers show about six-thousandths of an …The x54 is on par with the 30-06, ballistically about halfway twixt the 308 and the 30-06. The x39 is at the lower end of the power scale of the 30-30. You can get both the x39 and 30-30 to fire a 150 gn slug at about 2200'/sec or possibly even better. If you intend to hunt with the x54 you have any number of full length rifle or carbine options.Ruger have also produced runs of the bolt action M77 and semi-automatic Mini 30 in 7.62x39 although bore sizes are .308”, forcing .311” projectiles down to .308” at the chamber. Un-tuned, these rifles (scoped) often produce accuracy of between 1.5 and 3 MOA, similar to the SKS and AK-47, giving acceptable accuracy out to ranges of 100 to ...The cartridge dimensions between the .308 Win (Top), and the 7.62×51 NATO (Bottom) are identical. Since these two rounds are identical in appearance, some might believe the .308 and the 7.62 NATO are the same round. Honestly, this isn’t completely wrong. However, the .308 and 7.62 do have technical differences.7.62x39 Nosler 123gr Ballistic Tip. 6.97. The 7.62 might have about 75 percent of the 5.56’s muzzle velocity, but its far heavier bullet makes it deliver about twice as much recoil. It’s important to consider that we picked a relatively heavy AR for the purpose of this comparison.
Our Brownells Firearm Support Technician with the skinny, Caleb Savant, is back to talk about two popular rifle cartridges: .308 Winchester and 7.62x51mm NAT.... Youtubevideosdownload
Mar 1, 2014 ... The 7.62x39 is more of a shorter range(less than 400m), inexpensive round that was purpose designed to be mass produced cheaply. It has good ...Granted, the .308 runs to slightly higher pressures than does the 7.62, but given the 7.62’s thicker case walls, it becomes pretty much of a wash. The main point is, if you want to move a 150-grain bullet at close to 3,000 …The 6.8 SPC is not similar or the same as the 7.62x51mm round cartridge. That’s the 308 Winchester that shares the similar dimensions to the 7.62 x 51mm caliber. But there still is one caliber that shares some similarities with the 6.8 and that’s the .270 Winchester. They can take the same bullets but the .270 has a larger casing which ...DayZ Wiki is a FANDOM Games Community. Follow on IGJoin Fan Lab. 7.62x39mm intermediate cartridge. Used in select rifles. In-game description 7.62x39mm Rounds are a type of ammunition in DayZ. They are found individually, packed in boxes, or pre-loaded in magazines. Empty the box to receive 20 usable 7.62x39mm rounds.Feb 17, 2024 · What does the “x39” in 7.62×39 mean? The “x39” designation refers to the cartridge’s dimensions – 7.62mm diameter and 39mm length. What is the ballistics performance of 7.62×39 compared to other calibers? 7.62×39 has a similar ballistics performance to the .30-30 Winchester cartridge. Is 7.62×39 a military round? May 10, 2023 · The 7.62×39 and.308 rounds cluster closely together, while the.308 rounds exhibit a flatter trajectory at 200 and 300 yards. However, the.308 exhibits a flatter trajectory, with an average bullet drop of 4 inches at 200 yards and 14.68 inches at 300 yards. Neither rifle cartridge is cumbersome at either range. The 7.62x39 has an average BC of 0.27. Some of the heavier subsonic bullets for 300 Blackout have extremely high BC, such as the 208 gr Hornady 300 Blackout ammo (A-Max), at 0.648. However, 300 BLK ammo has a BC around 0.35 in general. Although the two rounds have similar bullet weights (123 vs 125 gr), the 300 BLK is typically loaded with ... Impact of barrel length on 5.56mm NATO muzzle velocity. Peak MV is at 20” barrel length. From there, the first 100 yards see almost zero drop, and at 300 yards, the 5.56mm drops around 10-15 inches, half that of the chunkier 7.62. That flatter trajectory makes up for less kinetic energy with improved range.Mar 14, 2022 · For $20 off your next ammo purchase, go to https://ammo.com/youtube (a special deal for our viewers)! When it comes to the scholarly debate about the iconic ... Mar 14, 2022 · For $20 off your next ammo purchase, go to https://ammo.com/youtube (a special deal for our viewers)! When it comes to the scholarly debate about the iconic ... Nov 18, 2015 · With bullets upward of 150/154 grains, the 7.62x39 mm’s muzzle velocities best those of the .300 Blackout by more than 200 fps at times (especially with “hotter” foreign-made loads). However ... The generally larger bullet size – in higher bullet weights especially – and the smaller, straight-walled casing of the 300 BLK in comparison to the 7.62×39, means there’s less propellant pushing the round down the barrel. The smaller case capacity means all the propellant is expended in about 10 inches of barrel.Jan 2, 2018 · January 2, 2018. From an external dimension standpoint, the .308 Winchester cartridge case and the 7.62 NATO (7.62 x 51 mm) are the same thing. In fact, the 7.62 was developed using the general design of the .308 as its ‘parent’ case. The difference between the two, beyond the outside dimensions, is basically two-fold: Internal dimensions ... .