Have your barrel yet? If not, give Jim Briggs @ Northland Shooters Supply a call. He does Criterion Barrels (CBI) which are Savage pre-fits. I've got one in 260 Rem and I know that the 7 RSAUM is a chambering that he does. I'm looking to do a 7 RSAUM next year. My 223 trainer is using a 300...