Another deleted YT video; this one of my homebuilt (from a parts kit and side plates) Cobray/ Leinad .45 Colt/ .410 shotshell derringer. This was very soon after I built it, and I had not yet painted it. The loads I'm firing here are some reloaded 2-1/2" .410s that I loaded using a screwdriver. One of these days I plan to make a video showing how I do that.
Get your .410 reloading goodies here.