Hello. I have a nasty old Ishapore .410 chambered for 3". Can somebody suggest a charge for loading one or two Lee 92 gr .395 balls, with a Federal 410Sc wad? I have 700X, Unique, Red Dot, Trail Boss powder. I am not looking for any real accuracy, just want to have some fun with the old girl.
Feel free to share any experiences you have had with these .410 conversions. I have to use an O-ring over the base of a regular .410 shotshell to get it to fire.
I am thinking a fellow could also "paper patch" some wadcutter .38 Special cast bullets along with a plastic wad column. Pressure shouldn't be a problem, as these rifles, or is it shotguns, were originally made to fire .303 British.