410 ammo. It’s fairly safe to say that whatever ... In 12-gauge, you can choose from 5, 7, or 9 shot; 20-gauge comes in 7 or 9, and 28-gauge and .410 are 9 only. Back in 1965 Winchester ...

Even when you shoot 3-inch shells in a 12, the hull holds 1¾ ounces of shot, resulting in much denser patterns than the 3-inch 20 gauge. While 12 gauges can kill to 50-plus yards with lead shot ...