I knock them out on my Dillion by the 100's. However in the subsonic world, 300 blk steals the spotlight hands down.įor Sub's only go 300 Blackout. There's no doubt that within the supersonic world its an intermediate cartridge. Now obviously, i'm never going to argue that the 300 blk is going to match a 308 in the max velocity department - that's as foolish as the statements you made about 300 blk's supposed shortcomings. Hi Im searching for some information on.1:10 twist is going to struggle with longer (heavier) bullets. 308 26562 Views 13 Replies 8 Participants Last post by Wildcat78, R rachmaninov73 Discussion Starter You did get one thing right - there's a LOT more factory offerings of subsonic ammo for the 300 blk than the 308 - that's because having that subsonic ability is one of the design specs FOR the 300 blk.Ĭouple things a 308 cant do (or do nearly as well) a 300 blk can subsonicġ) cycle a semi auto - 300 blk wins here hands downĢ) be way more efficient on powder use - just look at the difference in case volume - 300 blk wins hands downģ) have many more powder choices that are both appropriate and safe for firing subsonic with the same selection of bullets - again 300 blk winsĤ) stabilize a significantly smaller selection bullets at subsonic velocity compared to 300 blk because of the standard twist rates used commonly in barrel production (1:10 for 308 vs 1:8 or 1:7 in 300 blk). its external ballistics when fired at the same velocity are going to be identical. however.Īny 308 caliber bullet - lets assume that both calibers are firing the exact same bullet just for consistency sake - fired out of either caliber at 1050 FPS (or whichever velocity you pick, as long as its consistent) has exactly the same energy and trajectory.Ī bullet doesnt care what barrel/caliber its fired from. This avoids the supersonic shockwave or 'crack' of a supersonic bullet, which, particularly for suppressed firearms, influences the loudness of the shot. I hate to destroy your fanboyism for 308. Subsonic ammunitions are ammunitions designed to operate at velocities below the speed of sound, which at standard conditions is 340.29 m/s (1,116.4 ft/s) or Mach 1. I think 300 BLK is stupid and would rather shoot a suppressed. If shooting subsonic, most go the short barrel/suppressed Blackout route. However, it has poor trajectory and not as much energy. 300 BLK is quieter and has more subsonic ammo available.
0 kommentar(er)
