PLEASE NOTE; 38 Auto, aka 38 Automatic is NOT the same caliber as a 380 Auto. The 380 Auto is shorter and higher power the the older 38 ACP, aka .38 Auto.
One Cartridge not a box: 38 Auto Factory Proof by Remington Arms Company loaded with nickel plated brass cases, red/purple dyed projectile and dyed “R-P” head stamp. *WARNING*: Please Note: Sold as a collectible, do not use in a firearm, it is “HIGH PRESSURE”.
See other versions of this caliber, please see below in related items.
History of proof Cartridges:
Proofs are used to verify or “proof” the mechanical strength of a firearm before it leaves the factory, higher pressure then regular ammunition and should never be fire in your firearm!
The bright dark reddish wash or dye on the base (head stamp) and projectile with nickel case is the U.S. industry standard of identifying these types of cartridges. History of the .38 Auto Cartridge:
The 38 auto also called 38 ACP or 38 automatic was designed by John Browning and introduced by Colt in 1900 for the 1900 Colt 38 auto pistol.
The 38 ACP was replaced in 1929 by the 38 “Super Auto” which is the “same cartridge case” but with a higher energy level, with newer and different gun powders.
WARNING: Do NOT use 38 SUPER AUTO or Winchester 9x23mm in a 38 AUTO pistol, as they are too high power for the 38 AUTO pistol. Also you CANNOT use 38 AUTO ammunition in a 38 Super pistol as it will not cycle the action.
