Comparing 147-grain 9mm and 220-grain 300 BLK, we get almost identical muzzle velocities (1,010 FPS vs 1,073 FPS). Subsonic Comparisonsģ00 Blackout and 9mm provide substantially similar performance when fired in a subsonic configuration. But keep in mind, these comparisons are made with a 16" barrel. That extra velocity translates into significantly more energy: 300 BLK punches with nearly three times (272%) more pound-feet at the muzzle. On average, 300 Blackout and 9mm supersonics provide similar grain weights (125 grains vs 115 grains beyond two common loads), while 300 BLK maintains a velocity that is approximately 45% faster at this weight. Energy (Average): Supersonic, 594 lb.-ft.Velocity (average): Supersonic, 1,525 fps.Weight (average): Supersonic, 115 grains Subsonic, 147 grains.Energy (average): Supersonic, 1,350 lb.-ft.Velocity (average): Supersonic, 2,215 fps.Weight (average): Supersonic, 125 grains Subsonic, 220 grains.
The measurements provided below are taken at the muzzle from each cartridge being fired. Because 9mm is usually fired from pistol barrels measuring 4" to 7", most other data available on this round’s energy and velocity will not be applicable. Keep in mind, these averages are based on each round being fired from an AR-15 with a 16" barrel. Read our AR9 Build Guide here.įirst, let’s break down the ballistic data of both cartridges. It maintains that popularity thanks to its power, small size, high capacity, and, like 300 BLK, its wide range of grain weights and ability to be easily suppressed. It's earned favor as "the world's most popular and widely used military handgun and submachine cartridge," per the 2014 edition of Cartridges of The World. It was produced in 1902 in Germany for the Luger pistol, and today it remains one of the most popular sidearm cartridges for NATO and non-NATO forces. The 9mm Parabellum, 9mm Luger, or 9x19mm (7.65x21mm) cartridge is one of the oldest handgun loads still in service. Read our 300 Blackout AR Build Guide here. 300 BLK include swapping the barrel, barrel extension, and gas system. 223-diameter casing, the AR's original bolt and carrier can be used, as well as 5.56/.223 magazines, upper and lower receivers, and parts kits. Importantly, spec-ops wanted a round that could fit in the existing M4 platform with minimal modification. (AAC) for special operations, at a time when SOF units wanted a cartridge capable of providing suppressed and un-suppressed fire with performance similar to the Russian 7.62x39mm found in the AK platform. It was developed by Advanced Armament Corps. 300 AAC Blackout (or simply 300 BLK) cartridge is a necked down 5.56 shell casing topped with a. 9mm Parabellum today, especially as both cartridges relate to the AR platform. Which one should you go with? We're comparing 300 Blackout vs. So, 300 BLK is a pretty direct competitor to 9mm when it comes to building a subsonic, compact AR that can still fire supersonic rounds. Both provide similar AR configurations to accomplish this. Both can be effectively suppressed when loaded as subs. Both cartridges can function as supersonic and subsonic loads with short barrels. If you wan't a semi with the capabilities of going from subsonic to supersonic with a change of a magazine then the 300BLK would suit you much better.The AR-15 is equally capable of chambering 300 Blackout and 9mm Parabellum. 308 is a much harder hitting and longer range rifle than the 300BLK. The difference between the two is quite large as the. 308 will do just fine and of course when it comes to supersonic. If you have a bolt gun and just want to plink quietly with the lighter 180gr subs then the. If you want to shoot subsonics out of a Semi then there is no other comparison as the. 308 barrel isn't made for subs so the twist may not be enough to stabilize the higher 200gr+ bullets that the 300BLK can. 308 to be less accurate than the 300BLK when shooting subsonics. This will cause larger fluctuations in velocity between each round causing the. The 308 will have a lot of empty volume inside the cartridge when you load up with only 10gr-15gr of powder in what is suppose to hold 40gr+ of powder.
In a bolt gun there is a small difference between the two for subsonics.
0 kommentar(er)
