My son just started shooting shotguns (he's 11) and we want a project gun for him. I refinished an old Winchester 1400 with my daughter, and he'd like to do one for himself. I've had some reliability problems with the Winchester, so I'm looking for recommendations. I'm thinking my best bet is an older Remington 1100 in 20 gauge. Can anyone recommend any other brands? I'm looking to keep it under $500 for the gun. Thanks.