Okay, if Wally World availability is that important to you, then you've made your case for a bolt rifle. Unless you buy a 9.3X74R and move to Europe, double rifle ammunition isn't convenient. Never has been, never will be. That's the nature of specialized firearms and the double rifle is among the most specialized of them all. Selecting a rimless shell for a double rifle in a caliber that is obviously intended for dangerous game, just because the correct choice is inconvenient, is the height of folly. Trying to cross a Ferrari with a pick-up truck gets you neither, just a wreck.
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