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What is the Checkering LPI.....???

Discussion in 'Shooting Related Threads' started by overbored, May 30, 2009.

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  1. overbored

    overbored Member

    Joined:
    Feb 13, 2007
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    You can measure it with a thread gauge. Model 12 18? 90T 20-22?
    Hope this helps
     
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