Hey there fellas!
I'm wanting to start shooting cast bullets from my 450 bushmaster and I need some help. I've never cast before and I need some help. It's in an ar15 so from what I have been reading I need a taller than usual gas check to help seal the gas hole in the barrel. I'm looking to shoot .452 375 grain bullets at around 18-1900fps. What would you guys suggest?
Any help would be great!!