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What is the groove diameter of the 9mm LCR barrels? Is it .355" (standard for 9mm)? Or did they use .357 barrels like they do on the convertible Blackhawk?

I'm thinking about getting one of these this year, but only if the bore diameter is really standard 9mm.
 

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I am almost certain it is straight .355. Regardless, it is a fine shooter and a lot of fun. Always plenty of ammo for it.
 

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I am almost certain it is straight .355. Regardless, it is a fine shooter and a lot of fun. Always plenty of ammo for it.
Push a soft .38 Special wad-cutter through the bore and then measure its diameter.
 
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