Quote:
Originally Posted by Bucher33
455 Hand Ejector 2nd Model Serial # 33764 on butt Roll marked left side of barrel SMITH & WESSON .455. Cylinder shaved for .45 ACP w/ moon clips and barrel cut to 4" Only marks are crossed pendants and broad arrow in Canadian C. Side note: This revolver was given to my mother in late 1953 from a family friend named George Kilgore who carried it through the Korean Conflict as a personal sidearm.
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I would stick to 45 Auto Rim because they are loaded to 455 pressures (~15,000) and not the ACP pressures of 19-21,000 required to operate the slide of the 1911, it's intended handgun. The S&W Model 1917 that ACP was used in has a heat treated cyl. The 455 does not.
Or if AR doesn't fire reliable (the 455 chamber shoulder is too far down the chamber to headspace on), you can reload ACP brass to 45 AR pressures so you can use the moon clips.