I hope this is the right forum for this, but I've been looking around for a snap cap for a 45/70, its a Ruger #3, and theres no way to ease the firing pin back after cocking it, I was thinking about drilling out the primer pocket of an old shell and using RTV or hot glue to fill it back in. Anyone ever tried this, any ideas about a better way to do it would be appreciated ............steg