For this reason people shooting with a silencer prefer subsonic loads, even when shooting a rifle. As a side note, if a silencer is attached to the gun it will only suppress the muzzle-blast noise. Subsonic loads do not have this second component of noise. The stelTH 300 Blackout (Hodgdon Data) reloading data with. 300 AAC BLACKOUT (Subsonic Loads) Barrel 16 Twist 1-10 Primer WIN WSR Bullet. ![]() The noise that shooting makes has two components, the noise of the hot gases escaping the muzzle and sometimes flashing as they hit the atmosphere (muzzle blast), and in the case of supersonic loads the crack of the sonic boom as the bullet breaks the sound barrier. 300 Blackout subsonic loads are a little more powerful than a routine. 223 load data for suppressed use Can anyone recommend a load for use in an 11.5-in. All data in this caliber is subsonic but is not normally tagged with the name subsonic. Not all 'subsonic' loads are noted as such in the data, because the cartridge is not capable of producing supersonic velocity. Most rifle loadings are all supersonic, so subsonic loads are specially down-loaded to stay below the speed of sound. Subsonic loads refer to those whose velocity is less than the speed of sound. In 9mm, most loading data are supersonic. 1x7 bbl with an AAC M4-2000 that will run just under 1,100 fps in warm weather Would actually prefer it didn't cycle the action to keep noise down, but most of all must stabilize so there's no chance of baffle strikes. ![]() For more effect, use a much heavier bullet. All data in this caliber is subsonic but is not normally tagged with the name subsonic. Can anyone recommend a load for use in an 11.5-in. &0183 &32 300 Blackout Subsonic Reloading Data Hornady 300 Blackout Load Data. Harmless Drudge said: The ballistic effectiveness is a combination of mass and acceleration.223 is a very light bullet, thus the velocity is the only redeeming factor. Not all "subsonic" loads are noted as such in the data, because the cartridge is not capable of producing supersonic velocity. Subsonic loads refer to those whose velocity is less than the speed of sound.
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