fosters3 Posted April 16, 2023 Share Posted April 16, 2023 On 11/25/2022 at 7:34 PM, Squirrel45 said: If one would to look at at a used MR switchbolt w no documentation how would you determine if the chamber is match or sport ? easiest way is to do a plunk test. If the round freely drops in =Sporter. A factory MR comes with a bentz (sp?) style chamber and the bullet seats into the lands of the chamber =needs pressure to seat. Link to comment Share on other sites More sharing options...
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