I have built a few AR's in 7mm 08 working on a 6mm45/223 right now but back to the 7mm 08 I find it to be a great cartridge for the set up good down range power and easy shooting, use Pac-Nor match + barrels have not tried any others Pac-Nor is so close to me so if there is a problem, just run up there all have been in the 22" bull style or slightly smaller diameter barrels. I used a dpms 308 for sizes and never looked back. sorry your getting rid of that one I would have go rid of one of the others built right they are a fine field weapon best