The barrel itself is three inches, and the chamber (not including the barrel) is one inch, mfg. states that this is a four inch barrel, is this correct?
Revolvers have their barrels measured excluding the cylinder. Semi-autos have their barrels measured including the chamber. The advantage of a 4" revolver barrel, if any, over a 4" pistol barrel can be lost via the cylinder/barrel gap.
------------------ Ne Conjuge Nobiscum "If there be treachery, let there be jehad!"