Thread: .223 Subsonic

well I suggest you try starting with your tightgroup loads you have hard data for....
your AP70 isnt a world away from trailboss so there is possibly data out there for it....definately is the universal load for 30 calibre being 10grns behind pretty much most projectiles....in most milserp 30 cal cases....
its your rifle and your face next to it.....proceed with caution whenever you try something new or assumed.