I had BH bore my 54cal Browning MR to 58cal. It didn't turn out perfect, having some zigzag at the bottom of the bore in the last 4 inches. I called BH and talked to him about, explaining it shot good but you could feel the irregular rifling with the cleaning patches. He asked me to return it to him for evaluation and agreed there was a problem. He said he would make it right by boring it out and putting in a liner, no charge. I got the barrel back today and am even more impressed with Bobby. The liner has the best looking rifling I've ever seen in a barrel, looking at it with my $50 borescope! From the very first shot, after an initial wipe down, it shoots great with a .570PRB and .015 patch. I can even start the ball with my thumb and no patch damage, but I use an over powder wad and leather disc. I'm sure Bobby would not mind my report on his mishap, that he promptly fixed, working it in his busy schedule and getting it back to me in about 4 weeks. Be confident in using his services as he is honest and diligent by my experience.