It's a small shank action. I'm not sure if the action will support the RUM cartridge, someone should chime in with that information. Look at the Duramaxx stock for tactical applications. A good stock for the money but will require bedding for best results. Quite frankly, the 7mm Rem mag is no slouch at 1k. I'd fire form the brass to the chamber eliminating headspacing on the belt, brass will last longer.
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