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22 muzzle velocity1/6/2024 ![]() ![]() 22 LR firearms, often failing to cycle the action because there's not enough recoil energy. ![]() Some subsonic rounds do not work well in most semi-automatic. To counteract this, some cartridge manufacturers have lowered the speed of their subsonic ammunition to 1030 feet (315 m) per second, or significantly less. Hence, a "subsonic" round used in these temperatures would be supersonic, and when its speed passes from supersonic to subsonic, it may become unstable, reducing accuracy. However, under cold air conditions at 32 ☏ (0 ☌), the speed of sound drops to 1088 feet (331.5 m) per second, approximately muzzle velocity. Additionally, the use of subsonic rounds may reduce wastage of meat due to the effects of a high-velocity round passing and destroying tissue.īecause the speed of sound in air at 68 ☏ (20 ☌) is approximately 1126 feet (343.4 m) per second, the subsonic round's muzzle velocity is slightly below the speed of sound, under many hunting conditions. Accuracy is improved with subsonic rounds, because any supersonic bullet (or projectile) that slows down from supersonic to subsonic speed undergoes drastic aerodynamic changes in this transonic zone that might adversely affect the stability and accuracy of the bullet. Supersonic rounds produce a loud crack which can scare away animals when hunting. Subsonic rounds are favored because of slightly superior accuracy and reduction in noise. Conversely, the rounds can contain little more than primer and an extra-light bullet. These rounds are sometimes equipped with extra heavy bullets of 46-61 grain (2.9-3.9 gram) to improve the terminal ballistics of the slower projectile. Subsonic rounds have a muzzle velocity of 330 meters (1080 ft) per second or less. 22 Long Rifle and related cartridges use a heeled bullet, which means that the bullet is the same diameter as the case, and has a narrower "heel" portion that fits in the case. Virtually every manufacturer of cartridge firearms makes at least one model chambering it, and this has been true for more than a century. It is one of the few cartridges that are accepted by a large variety of rifles, as well as pistols. For many decades, it has been a very popular cartridge around the world. Stevens Arms & Tool Company in 1887 by combining the casing of the. The cartridge originated from the Flobert BB Cap of 1845, and was developed by the J. It is occasionally referred to by its metric designation of 5.6x15mmR. 22 LR and various rifles, pistols, revolvers, and even some smoothbore shotguns have been manufactured in this caliber. The cartridge is often referred to simply as a. 22 Long Rifle rimfire cartridge is a long established variety of ammunition, and in terms of units sold is still by far the most common in the world today. ![]()
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