No. The .22 is smaller in diameter than the .25 and would be too small for the chamber of a .25. Generally speaking, you should never try to fire any cartridge in any handgun other than what it is designed to fire. While it may be possible to get a cartridge to fire from a different gun, it may cause damage to the gun or the shooter. Additionally, I forgot to mention that the .22 is a rimfire cartridge and the .25 is a center fire, the the firing mechanism is slightly different in the two guns.
.22 Long Rifle bullets...
No
No. .22mag. bullets are too long, and they aren't heel-type bullets
No it can only fire 22 caliber pellets not bullets.
Probabably 22LR. Have it checked by a gunsmith.
NO NO NO! Only shoot what the rifle is chambered for and so marked.
Yes
Whatever is available ought to be OK. (40grains.....)
22 Long Rifle
Lakeside Razorback belt-fed .22 long rifle pistol, 200 round capacity belts.
No! The .22 magnum is different dimensionally. Do not attempt to chamber a .22 Magnum in a rifle or handgun designated for .22 s,l or lr. In most cases the barrel of a rifle or handgun will indicate the chambering!
A .22 revolver takes CARTRIDGES. Which .22 cartridge will depend on what caliber the revolver was made for. A .22 LR can shoot Long Rifle or Short cartridges, and a .22 WMR uses .22 magnum cartridges. They do not interchange. There are a few .22 revolvers that have 2 cylinders, and can shoot either cartridge.