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  • GeneT
    GeneT reacted to Al Nyhus's post in the thread 7BR with Like Like.
    Here's Geoffrey Kolbe's twist calculator: http://www.geoffrey-kolbe.com/barrel_twist.htm Good shootin' :) -Al
  • GeneT
    GeneT reacted to tim's post in the thread Scope Parallax with Like Like.
    First off, with a BR quality optic, March for instance, every session at the bench often requires small adjustment from previous...
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