Kilimanjaro will build your rifle on the cartridge chambering of your choice from 204 Ruger to 458 Lott, and all stops in between, including most wildcats and many excellent cartridges that are no longer the flavor of the month of the mass production industry. We love a sweet shooting small bore, but unlike many makers, excel at the more demanding big game and dangerous game cartridges. Your choice of chambering will of course affect the best choice of stock geometry and action for your rifle.