So about a year ago I bought a used K98 Yugo 8mm Mauser which seems to be in great shape. Bore looks typical rifling looks good and the major dia looks dull and gritty. I've tried shooting PPU 198gr FMJBT's with 4350, 4064 , and W748 and my Mauser is shooting only about 3.5 moa average. The best I've shot so far is 1.5 moa but in no way can I claim consistency. I had this rifle disassembled and I noticed a PO did a hackenstein bedding job using devcon 2 part epoxy. My question is how can I differentiate between a rifle that is shooting poorly from a shot out barrel , vs. a rifle that simply needs to be accurized ?