Putting together a 450 Bushmaster on a Savage action with a 1:16 18" barrel.
Target/pest control under 100 yards, possibly deer at appropriate ranges.
Looking to shoot 300+ cast boolits with a Keith style or wider meplat.
Running subsonic so probably not going to need a gas check, correct?
Planning to use COWW etc, any reason not to?
Mold suggestions?