this has been discussed a few times on different posts here.
1) never a good idea to shoot something in a gun that the gun was not designed for.
2) even if a 410 would shoot and cycle in a 444 or a 45-70
the rifleing will fling the shot all over the place making wing shooting impossible.
Much like shooting a snake shot load out of a handgun. 10 feet it starts to open up and by 15 there is a hole in the pattern that would miss the snake. I thought my 44 mag would be the untimate survival rifle. Slugs, bird shot and everything from holly cow heavy loads to mouse burp loads. The mags worked OK, some specials did not feed from the mag (knew they would make the gun a bolt action) and the shot shells barly killed a tins can at 15 feet.
I know a guy at my last club that tried to load 44 Shot cups in his 444 and even made a choke tube like those on a T/C to grab the wad and straiten it. He could not hit a clay bird with it from on top of the house. Maybe ground sloose a bird , maybe not. i think you would have a better chance of shooting it in the head with a slug.
I think if you are looking for a ultamate survival gun you will have to look at a combo or cape gun (2 different calibers) or drilling (3 barrels could be three differnt may only be two) or vierling (4 same as drilling. Many vierlings are drillings with a rimfire or hornet in a rib)
or just a plain jane shot gun with screw in chokes that includes a rifled one for slugs.
