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  1. 7

    Mark V stringing downward

    Last Sunday I shot my Mark V for the first time against paper. Mark V, 338Winchester (yes, it is), Docotr (East German Zeiss) N2 scope, Leupold quick disconnect rings and base. Shot 1: POI (Point of Impact is the zero point) Shot 2: .5 left, 1.1" down Shot 3: .25 right, 1.5" down (with respect...
  2. 7

    Converting CUP to PSI

    The reloading data I have for 338 Win is generally in CUP. Can I really use the following with confidence Psi = (1.51586(CUP))-17,902. While this formula makes the conversion trivial, it's also co-efficient heavy. After seveal searchs of this forum for enlightenment, I came away empty. So, I...
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