Since I don't reload for rifle, is there another way to fire-lap barrels? I've got a 700 BDL/SS in .270 that I bought from my neighbor recently and it's only got about 30 rounds through it. My test firing put 4 shots @ 5/8" with a flyer out to 1 1/8" (100 yds). If I can get 1/4" +/- improvement on that I'd be tickled.