I have a 6.5 PRC that i shot the barrel out of, was at my local gunsmith yesterday, we put a 18" barrel and 1 of my cans on it, shot it this morning, about 1/2" AT 100 yrds, and about 3" at 500 yrds, and it handles real well with good balance, that's good enough for anything i will use it for. Rio7