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Discussion in 'NFA & Class III Discussion' started by Pearl Cruz, Oct 1, 2018.

  1. lasher

    lasher Sharpshooter

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    if you use adjustable blocks, which i do, drilling a port out less than a thousandth of an inch causes no harm to the gun. mine needed drilled so i could use CFE BLK in my loads, guns would not cycle using that powder. but i agree, check everything out before you enlarge a port, but enlarging a port certainly is not "boogering" up anything
     

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