Exam (elaborations)
FTT 221-9445 Sights, Optics, And Accuracy Exam Questions With Solutions
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FTT 221-9445 Sights, Optics, And Accuracy Exam Questions With Solutions Crown A crown is the very tip of the bore in which the exit plane is precisely ma- chined perpendicular to the bore axis Harmonics Barrel harmonics is the mea- sure of a barrel's ability to return to true upon fir- ing ...
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