Thread: US Model 1917 S&W Army .45
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Old 05-18-2018, 04:54 PM
Muley Gil Muley Gil is online now
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"Is there any reason I couldn't simply swap the 45 ACP cylinder for a 45 LC?"

The frame lug is thicker on a 1917, due to the shorter length of the .45 ACP cylinder. A .455 cylinder, rechambered to .45 Colt, can be fitted to a 1917, if a provision is made for the thicker frame lug, such as turning a shallow groove on the .455/.45 Colt cylinder.
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