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Thread: lengths of barrels

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  1. #30
    Gone But Not Forgotten Toby's Avatar
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    Quote Originally Posted by 7mmsaum View Post
    Toby, the common bore "choke" on a quality rimfire is 2.5 to 3 thou constriction linear from the chamber throat to the muzzle, not enough to damage the projectile but enough to maintain a good gas seal and consistent rpm for it's spin stabilized flight.
    Thanks. Learning lots of new shit from a few of you on here

 

 

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