I was wondering if it would be advisable to rebore a Savage 2400 12GA/222Rem combo gun to be 12GA/357 Mag or Max. I know JES Rebore lists 223 as convertible to 357 Max, so I would think in a single shot break action that 222 would be convertible to 357 Mag or Max. I am a bit concerned with the thinness of those barrels. Anybody have one that they could mic the OD of the thinnest part of the 222Rem barrel.