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.
A good pistol for a beginner would be a 22 cal. pistol. The ammo is cheap to purchase and this will allow you to get lots of practice without breaking the bank. A 357 Magnum is another good choice.
what kind of pistol is it?
22 caliber ammo
Yes- but not very common. There is an automatic pistol caliber known as the .38 Super, which does not interchange with the .38 Special revolver cartridge. There have been a small number of target pistols built to shoot .38 Special Wadcutter target ammo. And there is at least one auto pistol made in caliber .357 Magnum (revolver cartridge). However, revolver ammo is rimmed, and auto pistol ammo is rimless- there are usually feeding problems when an auto pistol is made for revolver ammo.
if it's a revolver......32 cal revolver ammo if it's a pistol......32 cal pistol ammo
gun shows, custom ammo makers
any 45 cal ammo will work in a 45 cal pistol
yes
yes
No
NO
A 22 caliber pistol holds a dose of 22 caliber ammo.