He did a fantastic job on a M1917 Rifle that needed the barrel straightened. Picked it up in a White River Junction, VT Gunshow in 2004 or so for $350, went to shoot it and couldn't hit paper at 25 yds. After moving the front sight almost half out of the dovetail to the left (probably could have used the left protective ear as an aiming point), it would at least get on paper. Grouped wonderfully tho. So I brought it by to see what could be done. Benko said to call back within a week, did and it was ready. Front sight was now centered up, he had test fired it and showed me the target, and brought it out to the range. Nice groups still and now all centered up. No damage to the finish at all, and that was what drew me to the rifle in the forst place - I've only seen one other better looking M1917 and now it shoots as good as it looks. Can be a little gruff at first, and there are usually a few guys sitting around the shop in chairs, but after a few minutes we were all gabbing guns and all was well. So + 1 for Gartman Arms if you need a G-smith - and he has some great wallhangers as well as a few racks of surplus rifles to pick through.