rechambering if not to expensive ,would be an offer you economical practise round choices aka all the bulk .22FMJ ammo available, and humpteen more sporting factory choices for sure. If you handload ,or just want to shoot the odd coyote in wooded type settings, the .222 is accurate, gentle little round, especially if you handload. When asked how the .222 stacked up against the .223, I used to point to the .300Savage compared the .308Winchester. Very similar round, with the latter a little more horsepower, and doing the exact same thing, just doing it a little further along the trail.