I've got a bone stock Savage Model 12 in .204. I've got the thumbhole stock, with fluted bull barrel. My gun loves 39 gr Blitzkings, but hates 40 gr vmax. A lot of people can't get the 40 gr to group but 39's work great. I get about 1/2 MOA out to 300 yards if I hold my own. I've taken p dogs out to 500 with it, if conditions are right I'm sure 650 is very possible as long as you have the glass.