03-25-2019, 12:43 PM
sarky Wrote:So it is an improved 7.62x39 that uses .308 bullets instead of .311?
The 30 arx is a 30 caliber (.308) Grendel case... I did something similar, but since I opened up an existing 7.62x39 Howa mini barrel, what I made was essentially an improved (30 degree shoulder) 7.62x39...I just accomplished that with a 6.5 Grendel reamer fitted with a 30 caliber pilot. Pretty much identical with .002" difference in bullet diameter.

