I was hoping someone could clear up a little info for me pertaining to a rem 700 bolt action, and there feed ramps. I may buy a rem 700 varmint in 223 from a friend of mine, and if i do i am not so sure i will leave it a 223. I haven't ever been particularly found of the 223, and i have a deep desire to own a 22-250ai. i was hoping i could buy a second bolt from kiff with a 308 bolt face. Were i need the help or clarification is that i once read that you cant use a 308 bolt in an action that came with a 223 bolt size bolt face. Something about the feed ramps being different or something?? So i need to know if i can put a 308 bolt in this action if i purchase it? I dont probably want to change anything permanent on this 223 bolt as the barrel thats on the rifle shoots very well now that i have cut some of it off and re-crowned it. I thought i might just open the bolt face thats on it but like i said i hate to change this bolt, plus i am sure i would have to have a new extractor installed so it might just be better to buy a hole new bolt from kiff? I dont know. I haven't ever played around much like this with these actions. thanks Lee