For close range home defense scenarios, .410 isn't the worst thing in the world. It's obviously better than a rolling pin.
Think about it this way, the Taurus Judge is a revolver that shoots .410 shells, and some people do choose it for a close range defense weapon. In fact, because of the Judge, some ammo manufacturers have started making self-defense loads specifically for .410. I would say looking into these loads would be your best option.
Federal Premium Personal Defense Ammunition 410 Bore 2-1/2" 7/16 oz #4 Shot
Federal Premium Personal Defense Ammunition 410 Bore 2-1/2" 000 Buckshot 4 Pellets
These are the most obvious ones that come to mind. You can find one of those, I can't remember which, at Wal-Mart, so they are easy to find and practice with.
Think about it this way, the Taurus Judge is a revolver that shoots .410 shells, and some people do choose it for a close range defense weapon. In fact, because of the Judge, some ammo manufacturers have started making self-defense loads specifically for .410. I would say looking into these loads would be your best option.
Federal Premium Personal Defense Ammunition 410 Bore 2-1/2" 7/16 oz #4 Shot
Federal Premium Personal Defense Ammunition 410 Bore 2-1/2" 000 Buckshot 4 Pellets
These are the most obvious ones that come to mind. You can find one of those, I can't remember which, at Wal-Mart, so they are easy to find and practice with.