A hadgun that fires a .5" projectile
Assuming you mean a bullet fired from a .22 caliber handgun, the answer is, yes, it can, but it depends on several variables.
Yes, colt makes a few different versions of the 22 caliber handgun such as the Woodsman, and Challenger.
It should be marked as to caliber on the barrel.
Its the size of the bullet that the gun is made for. its the caliber that a handgun uses
No.
Probably. It would likely refer to a handgun that fires a .45 caliber ACP, or .45 GAP or an older .45 caliber revolver round.
.32 caliber. In a semi auto handgun, probably .32 ACP
45 has the larger projectile. Size of the handgun will vary.
$489!!
Rifle or handgun?
Small handgun
The exact value of a 1910 Colt 22 caliber mini handgun would actually be highly dependent on a number of factors. Most importantly, the condition of the handgun.