energy (at the range at which the animal is targeted) is needed for deer-sized game. It’s virtually the same.įor reference, the commonly accepted standard among hunters suggests that at least 1,000 ft.-lbs. 22 LR load 1255 fps, it’s about 140 ft.-lbs. Compare this to the nominal ME of a 40-grain. So a 55-grain bullet fired at 1100 has a maximum muzzle energy (ME) of 148 ft.-lbs. The supersonic threshold is 1127 fps at sea level. Just look at the numbers:Ī typical bullet from a. simply aren't powerful enough to cleanly kill game under normal hunting conditions. That’s because subsonic rounds in popular AR calibers like. Nonetheless, now that AR-15s and suppressors are more popular than ever, the tactical crowd clamors for commercial subsonic offerings. Most of these guys prefer 77-grain, full-power ammo that produces maximum energy from their suppressed M4 carbines. While non-military dudes like me boyishly fantasize about tiptoeing into a devil’s den to snuff evil where it sleeps-all without waking the wife-more than one actual SEAL combat veteran has indicated that subsonic rifle ammo is actually rarely used in combat. Without serious muzzle blast or the supersonic crack, hunters can forego hearing protection so that glorious plinking sound of bullets striking their mark can be heard all the better. I get why subsonic ammo is cool: It’s as quiet as a cobra and kicks like a flea.
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