I have a 12, 20, 28 and .410 gauge shotguns. I find them more than adequate for my shotgunning needs. A friend of mine has offered me his 10 gauge. Usually I jump on the chance to buy a new gun, but I'm saving up for another project, and don't think I'd need or use a 10 gauge. Asides from more shot, what advantage does it have over a 12, and is it worth it? Personally, I find the 12 gauge great for duck and goose hunting, and I have a rifled 12 gauge for deer slugs.