I had some for my 9mm. Had to shoot a huge moccasin in my brothers back yard during a family picnic. Jammed my pistol all 3 ways to hell with plastic shrapnel. Never used them again. Buy a 410.
they will not cycle and you will want to be about 5ft away or less as the rifling in the barrel will throw all the pellets to the outside of the pattern.
I ran a few through an HK 45 a few years back. Not sure if it's just an H&K thing, but the .45ACP snake shot cycled fine in that pistol. Had a few 17" Circle targets. Shot one at 5yds with that snake shot and there were pellets everywhere including off the target. I believe 3 rounds went down range, the rest have spent the past 5 or 6 years buried deeply in the "Box of Broken Dreams"