I've been thinking of buying a Pardner .410 for myself and my little brother to pop chipmunks and other highly dangerous animals around the garden. My little brother is 10 and already has a Marlin .22 semi-auto which he handles pretty well. Ranges are out to 15 yards at most. I'm planning to use the 3" shells with probably #7 1/2 shot. So what are your opinions on H&R Pardner shotguns and the .410 for the intended use?