>>275250650lbs? That thicc boy is too big for .22lr. Get a PCC or use a pistol in 9mm. .22lr is too small and weak for clean kills on bigger small game, let alone the jokers saying you can hunt large game with it. No one hunts large game with a ANY rimfire cartridge. You are nearly certain to only wound it and have it run away unless you get some insanely perfect shot. Even in a survival situation, it's still a waste of ammo better used killing a rabbit. It isn't going to help you survive when it runs away and dies of an infection weeks later.
Don't be a Chud Fudd. Pick the right weapon for the job.