I'm sure I'm not a contender here. It just popped into my head that it could be a goal for someone if appropriately motivated.
I've done 22, 9mm, 38, 357 mag & 45 handguns plus a 44 cal black powder pistol + 22/250, 25/06, 223, 243, 30/30, 30/06, 308 rifle + 410, 20, 12 and 10 gauge shotgun...