Re: Worlds fastest .30 cal
I built a .30-378 IMP probably 15+ years ago. It pushed the shoulder forward to give it 1 caliber worth of neck with a 35* shoulder. In a 30" barrel it would do 4100+fps with 150's, 3965 with 165's, and about 3850 with 180's. It would carbon foul like crazy but I...