Bartlein 3B contour, 7.5 twist, chambered by Straight jacket armory, cut down to 16.5” in length, 5/8” threaded muzzle.
Barrel has right at 757 rounds down the tube. Barrel has light scratches on it. Pics of throat with borescope.
It really liked 108 eldms, elite hunters, and 110 atips...