Thread: 450 bm

Are they Hornady subsonics the 395 gr? I’ve found & heard that Hornady seem to run their subsonics slightly over the speed of sound to provide back pressure to cycle the semi autos they are so fond of… for instance the 45/70 subs I initially bought were running at approx 1140 fps through my 18” barrelled rifle. I pulled the bullets & reduced the powder charge from 18.8 gr to 16.5 gr to get the 1,030 fps I was looking for .. Good Luck