I have the opportunity to buy a very used Remington 700 which was one of our old Snuper rifles at work. The HS stock has a crack (junked) The barrel was inspected by a smith who said that there are micro fissures in the chamber (junked). Basically i'd be purchasing it as a used action to have a new barrel spun on with a new stock. It's a short action that is currently chambered in 308. It has been estimated that it has 7000+ rounds through it. My question is in regards to the lifespan of the action. If like to get a few more rebarrels out of the action. I'm looking at maybe a 260 or 243 in either standard faire or AI.