Thanks for all the info! From what I can tell the barrel should be 1 in 10 twist, which is ok for 140-160 Bullets at 4500 ft. When I get I’ll measure the throat, and I’ll go from there. 1 in 8 maybe it my future... I’d like to set up a dumbly cartridge with a 160 Accubond around 3.60 +/- and...