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Old 01-09-2010, 16:06   #25
Iceman cHucK
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Join Date: Jun 2008
Location: WA state
Posts: 463
I have consistently chronoed DT at 100-150fps below advertised in many of his 10mm loads. I'm in western PA at approx 1300'.
Does anyone know how to calibrate the fps expected by altitude in say 1000' increments? Could this explain the differences many of us see. I had no idea DT was at this 6000' + altitude!
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