Man, those giant disks in that Winchester ammo have almost no sectional density - it'd almost be like slapping them with a metal frisbee - would smart and leave a red mark but not penetrate much.
My sentiments exactly.
You know, they could combine all of those tiny bits of metal into one wadcutter bullet and load that into the .410 shell. It might actually have enough sectional density to do some good. Of course, if you are going to do that, then why not just load 45LC ammo? Or even better, just buy a 45LC (or 44) revolver in the first place. Speer makes factory snakeshot loads for it and also sells just the shot capsules for reloaders.