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Rifles, Reloading, Optics, Equipment
Reloading
270 win velocity question?
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<blockquote data-quote="Philward" data-source="post: 1693899" data-attributes="member: 92604"><p>After calculating losses for barrel length and lower powder charge my Chrono probably had an error of +50-75fps. Using Barnes velocity data and comparing to my own measured data from this shooting session. Realizing of course that the velocity curve may not be linear and quite possibly parabolic or exponential. Maybe it's only doing 3080fps.</p></blockquote><p></p>
[QUOTE="Philward, post: 1693899, member: 92604"] After calculating losses for barrel length and lower powder charge my Chrono probably had an error of +50-75fps. Using Barnes velocity data and comparing to my own measured data from this shooting session. Realizing of course that the velocity curve may not be linear and quite possibly parabolic or exponential. Maybe it's only doing 3080fps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
270 win velocity question?
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