I have a Nesika Model K repeater in 260. I had a spare barrel a 1/8 chambered and had the orginal barrel 1/9 set back at the same time. I wanted the 1/8 for 139gr Lapua and the 1/9 for lighter bullets. Well I told my smith to tighten up the chamber but he made it a bench rest rifle. Now at .288 its too much work cutting down the brass. Im thinking of a no turn .295. I havent even shot the rifle due to the fact that I hate turning brass.