All the new model Savages(can't remember when they started, the last year or two) are centerfeed. The bolt isn't different. It's the way the mag, blind or detachable, is set up. On the blind mag models the mag is attatched in the stock itself, I think. If you can pull your action apart with the mag attached there are numerous aftermarket stocks available. There are only a few for the centerfeed. It's got to do with the action bolt/screw spacing. I can't remember what the exact spacing is. I think you can look on Sharp Shooters website and it will tell you. I hope this helps.