![]() ![]() If you happen to clear the suppressor and the bullet tumbles on the way to the target, the flat spin will cause the bullet to veer off target. If the bullets are marginally stabilized, after the fashion of the early M-16s with their 1:12 twist rate and 55 FMJs, then bullet weight will have to be specific or you will risk the baffle strikes mentioned above. Most subsonic ammunition travels at speeds ranging between 900 and 1,100 fps (275-335 m/s). Because they aren't traveling fast enough to expand, penetration is usually very deep and your energy transfer isn't in proportion to actual muzzle energy. There is a finite velocity ceiling and if one wishes to impart more energy, then the greater frontal area and weight of larger calibers is called for. Winchester Target & Practice Ammunition 9mm Luger 115 Grain Full Metal Jacket Box of 50 Bulk. Subsonic ammo is like blackpowder in a way. CCI Clean-22 Ammunition 22 Long Rifle Subsonic 40 Grain Blue Polymer Coated Lead Round Nose Box of 100. 300BO 25 yards into the berm behind my shop and if they are kept subsonic, they look almost unfired upon recovery. We've shot several weight Barnes bullets from the. But the ELDM (and other SST bullets Ive used) seem to have a lower limit around. Unfortunately the 1:9 twist rate will stabilize the lighter bullets which have velocities much higher than the 1100 rounds, so you might still hear a sonic crack with a supressor. There arent many 30 cal rifle bullets that expand significantly below 1600 fps the Barnes110gr black tip does for sure, and of course the various specialty subsonic bullets, and Noslers ABLR line does as well although its kind of toeing the line right there. At around 220 grains, subsonic 300 Blackout ammo weighs. ![]() I find BTHPs from 168 to 240 grains that have failed to open up when striking firm clay-based soil at transonic/subsonic velocities and were it not for the 'sandblasted' finish, look like they could be fired again. Suppressors work great with subsonic rounds of 1100 fps or less. With high-quality cartridge cases and primers, Subsonic Ammunition offers the performance and accuracy shooters have come to expect from Hornady. As they dont break the sound barrier when fired, they are quieter to shoot than supersonic ammunition. Jacketed rifle bullets are even more difficult to open up. 22 LR HP slugs don't reliably open up on small game/varmints at close range. It's very hard to get subsonic bullets to expand. Click to expand.They usually don't expand. ![]()
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