You can shoot 45 Long Colt or .410 shot shells with this weapon. 45 ACP rounds will not work properly.
No.
No.
Depends on what it is choked.
NO!!! There ARE some firearms that are made to fire both, but the standard .410 shotgun is not. You are trying to push a .45 caliber bullet through a .41 caliber barrel. This is extremely dangerous. Can it be done? Yes. How many times can it be done before you blow the gun up? No one knows THAT answer!
Yes I have the same shot gun and I have shot deer with this gun. when I was 12 or 13 so I know you can .
You can shoot both a 2 1/2 and a 3 inch shell.
Slugs. You CAN shoot lead bird shot in a rifled barrel but it will not give you good or consistant patterns.
No. But there are revolvers made to shoot .410 shells that also fire .45 Colt cartridges,
Yes, you can shoot 2 1/2,2 3/4, and 3 inch shot gun shell in that barrel.
None. Some handguns have been made that will fire .45 Long Colt revolver rounds and .410 shotgun shells, but that does not mean that you can take any .410 shotgun and stick .45 handgun ammo in there.
None. While there are firearms made to shoot .45 Colt AND .410 shotshells, they are designed and made to do that. A regular .410 shotgun is NOT made to do that safely.