I agree with Mr. Keenan, shoot it and see what kind of groups you get. I shoot a 7.62x39 through a Type 99 Japanese barrel (.312) and load with .308 bullets. At 100 yards it would keep up with any .30 caliber factory gun out there. I think the deep cut rifling helps it out. Same thing with a .300 Savage I have, picked it up at a yard sale years ago, t-99 Jap re-cut to .300 Savage. Very accurate @ 100 yards with factory ammo. Try it and see what it does, it may surprise you.