I am shooting from a factory barreled Sig Cross (18").
Max COAL (to the lands) is 2.867 measured 10 times with only 1 variation of 0.002 so I figure i am good.
First 100 rounds were with IMR 4064, Varget, and H4350 shooting 130 ELD-M's. Every load shot MOA or better. No chrono as I just wanted...