I need a 410 for my aged wife and 50ish daughter. The daughter didn't like my 20 gauge 870 because it kicked too hard. I'm sure it was the way she shouldered, but I couldn't teach an old dog a new trick. The thing that turned me off about a 410 right now is the availability of shells. They have been ghosts for around two years. I can buy the Cricket "My First Shotgun" pretty cheap but I'm afraid I won't find any ammo. I won't pay $40 for a box of 25.
That's interesting. It once was the other way around back in the brick and mortar days. 410 was readily available and 28 was scarce, at least in smaller towns. If 28 is easily obtainable in SD rounds, although pretty similar to 410, 28 does have a bit more powder and possibly capacity for volume of bbs. Bore diameter for a 410 is 0.410 while 28 is 0.545. 410 shells are 3 inch and 28s are 2 3/4.
The two are pretty close but the 28 has slightly more recoil. As a kid, I started with an Iver Johnson 410, but a friend had a Remington 28. I shot both side by side while shooting skeet one day. My 410 had full choke and his 28 was modified. I hit the clay pigeons a lttle better with his gun.
When it comes to anti-personnel use, from my perspective, low-recoil & short-shell 12ga have obsoleted the 20 ga for those who are recoil sensitive. That said, I can see arguments in favor of the 410 for some applications.
Chalk this up to the world according to me. I see the KSG as a defensive gun. As such, the only sense for the .410 would be for a self defense gun for someone that is recoil sensitive. But for that kind of person, would there be better options than a KSG in .410? I think yes, such as a pistol caliber carbine. Again, just my 2 cents.