Where subsonic ammo excels, however, is with the. Despite what you might think, much of the noise comes from the gas escaping the barrel, so subsonic rounds aren’t exactly whisper quiet, which is why many add a suppressor to the mix. The tradeoff is less energy on target, which makes going subsonic less desirable with many large hunting calibers.
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Since the crack of a bullet breaking the sound barrier greatly increases noise, subsonic ammo is designed to leave the muzzle at less than the speed of sound, which is roughly 1,125 fps at sea level. The truth is, there’s a time to slow things down and keep it quiet, which is why subsonic ammo exists. Not only is all that velocity-crazed volume hard on the eardrums, it’s also unfriendly to the pocket book, as anyone who has recently bought a box of ammunition for one of the newest long-range super cartridges can tell you. Just stand next to a muzzlebraked magnum or a straight-piped hot rod to get the picture. The drawback, however, is the noise pollution that accompanies our fixation with speed. From muscle cars to overbore rifle cartridges that burn barrels and launch bullets downrange at well beyond 3,000 feet per second (fps), we operate on the assumption that faster is better. We earn from qualifying purchases.Īs red-blooded Americans, we’ve long ago come to embrace our ancestral need for speed.
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