Thread: 300BLK

7.62x39 Do you want too shoot cheap steel case ammo? Do you want a more grunt with factory supersonics? get 7.62x39 It needs a longer barrel to get the best return on the slower powder. Remember the projectiles should be .310/.311 cal and are less common (same as 303). I have loaded x39 subsonic and they worked well. Unfortunately unless you have a rifle with fast twist barrel it may not shoot the heavier subs well.

300AAC/BLK Costly to shoot with factory ammo, you will want reloading gear. But you can get good velocity with short barrels (don't bother with more than 16 inches). You can also shoot .308 cal projectiles. Most barrels are 1/7 or 1/8 so good up to about 250 grain projectiles.

Get 300AAC and reloading gear. Trust me you will love it, but get a decent suppressor. It can be very quiet.