I've heard that cartridge head stamps must match the caliber stamped on the rifle barrel. I have also read that AI cartridges are used, such as 30-06 AI.
I'm considering a .375 H&H AI. I would prefer a standard H&H, but this is a re-bore and that is not possible. I wonder if regular .375 H&H rounds would pass African customs for use in a .375 H&H Imp. How much matching must there be? Do cartridge and barrel have to match exactly?
I would consider a .375 Ruger, but brass seems to be hard to come by for this round.