Yes
Any modern ammo will do, except for +P.
Needs to be checked out by a competent gunsmith.
38 S&W ammo. which is a shorter version of the 38 special cartridge.
CTG stands for Cartridge
No difference. CTG is the abbreviation for cartridge. A revolver marked 38 Special CTG, or .38 S&W Special CTG is simply indicating that it is chambered for a .38 Special cartridge. This IS different from .38 S&W, and older, shorter, fatter, less powerful cartridge.
Cartridge
yes
.38 special IS the correct ammo for a gun chambered in .38 special. Trying to take a round and push it into the barrel is not the way to "test" to see if it's the correct ammo because the cartridge or bullet won't fit into the barrel that way unless you force it. If the gun is a .38 special, you buy .38 special ammo and it will work.
ctg = cartridge
What are you asking?
1979