When you hear the gun industry talk about their new sub-gauge ammo loads, you’d think that before the invention of bismuth shot, the wonders of .410 gauge had not been discovered, and nobody made nice shotguns for this round. This just ain’t the case; hunters have been hip to the .410 since the 1800s, and once upon a time, Winchester made the lovely Model 42 pump-action specifically for this small-bore cartridge.