Jayhawker
Member
Brand new RRA Varmiter AR 15 with a 24", 1-8 twist bull barrel. What is your advice as to the maximum weight bullet this barrel will stabilize? Has anyone heard of an ideal weight bullet for this configuration?
Thanks
Thanks
Not in my experience. My 1:8" JP Supermatch barrel prints sub-MOA five-shot groups at 100 yards with 55 grain bullets. It's pretty well impossible to spin a bullet too fast, unless the jacket seperates in flight.My guess is that an 8" twist wouldn't give good groups with bullets much under 70 grains. Certainly I'd not expect tight groups with <63-grain bullets.