![]() Frankly any emphasis on boutique subsonic bullets is a lost cause in my book. Short range lethality in a compact package with ergonomic controls. Subsonic ammo is not necessarily quieter, with a lower decibel noise level than supersonic ammo. For a bolt gun set up with AI bottom metal or single shot you are no longer limited to 2.260 for magazine length. Some powder/bullet combinations will need more powder for the longer barrel, some less. Anything faster than that is considered supersonic ammo. Barrel length will make a difference, in powder choice, it’s a lot tougher keeping things subsonic in a 24 barrel than an 8. It makes the best sense in something along the size of an MP5, such as the Sig Rattler. Subsonic ammo is any ammunition that achieves less than supersonic velocity, which is generally accepted to be a velocity of 1,126 ft per second at sea level, the speed of sound. Marketing has been focused on subsonic range toy bull shit guns as big as the same made more effective with 5.56. It's slow, the bullet selection is small, and it takes up the space of a 5.56 gun. TAC-TX are at least 70 cents typically.ģ00 Blackout is a very niche cartridge that the gun media has masqueraded as some do-it-all wonder pony. ![]() Plus they're usually between 20 to 30 cents apiece in today's market. The Nosler Varmageddon and Hornady VMAX 110 gr projectiles will achieve the same velocity as the 110 TAC-TX, and offer excellent expansion and acceptable penetration. Quality 300 Blackout projectiles are indeed quite limited, but you don't need to buy the 110 or 120 TAC-TX exclusively. Both hit, but only one is going to act like a rifle round. This is one of the main differences in a hunting cartridge versus a target cartridge at distance. What is Subsonic Ammunition Quite simply, subsonic ammunition is any cartridge that propels its projectile at a velocity that is below the speed of soundapproximately 1100 fps depending on atmospheric conditions and elevation. High velocity (2200+ FPS) bullets will turn organs like the liver and heart into a jelly during field dressing. Albeit it doesn't do a lot, and with the already slow speed of 300 Blackout the engagement range must be short since most light. ![]() Meanwhile lower weight 110-120 gr bullets moving fast enough will exceed some tissue elasticity with their hydrostatic shock during expansion/fragmentation, and yield not only a permanent crush cavity but the disruption of nearby tissue through liquification. Click to expand.The subsonic projectiles are all at the best a slow expanding bullet that has to entirely rely upon permanent cavity and penetration depth for wounding. ![]()
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