Have you bothered to load some of the new powders?? Precision Shootings folks did, and they don't do anything more. A powder that's too slow in a standard 25/06, is still going to be too slow in the AI version. If someone hasn't had feeding problems with a AI round, it's either because they are jiggling to make it feed, or something. You just cannot take a straight sided case and make it feed right in a sloped sided case action. The gun smith who made the 25/06AI up in 1963, was one of the best around. But lot of lunk heads out there who believe a little jiggling of the bolt handle okay. If you don't trim brass, it's because you're not too bright, as ALL brass stretchs some. Indeed, in a recent article in either Rifle or Precision Shooting (PS oriented towards people who actually know something about guns and shooting), one of the writers said that the claims for less bolt face pressure and not having to trim AI cases were both BS.
More reading, less shooting...you'll be happier.
