Any firearm maked for the .45 ACP cartridge. This has been around since 1911, and includes a HUGE number of pistols, derringers, revolvers, carbines and submachine guns.
Anything labeled 22 magnum, such as a Henry Golden Boy.
Well, spring airsoft guns use an internal spring to fire the ammo and by auto you could be referring to either Auto Electric Guns (AEG's) which are quite popular and my personal favorite. AEG's use a rechargeable battery to operate a motor which fires the ammo that way. Have fun.
Unless there's a mod where guns use the same ammo, none
No
380 auto. Many good brands of ammo out there.
22 Long Rifle
Any revolver. As for semi auto pistols, the 'Ring of Fire' guns (Lorcin, Raven, Jennings, Bryco, Jiminez, etc.) are designed to use cheap ammo. The Ruger pistols are pretty tolerant as far as ammo goes, as well.
I don't think there is any +P ammo made for the 32 auto ????????
Winchester made some that did. Remington also, IIRC.
Yes
.45 Long Colt.
Any weapon chambered for it.