I made everlasting 410 shells for my 45/410 Contender years ago from 444 cases. Also, full length shot shells for my Super Blackhawk by trimming and filing flats on the rims.I like to reload. I reload every center-fire caliber I shoot.
The best part, is the experimentation. Finding that perfect load, but still looking for another. Using .30 Carbine bullets in .30-30 or .30-06. .357MAG with 92gr bullets. Funnest project, .444 Marlin brass loaded to .410 shotgun SxS for grandson to Cowboy Action Shoot.