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Magneto Speed
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<blockquote data-quote="J E Custom" data-source="post: 1630742" data-attributes="member: 2736"><p>Before we had quality chronographs, or no chronograph at all we established muzzle velocity using drop charts. Once we found the actual drop at known distances we could calculate the Bullet BC and the actual velocity.</p><p></p><p>The only thing that we could count on was the actual drop chart. Sight settings/changes required good drop charts that matched the rifle and ammo used when changing distances during a match. we realy didn't worry about bullet BCs because of climate and altitude changes. and because most advertised BCs were incorrect for out location.</p><p></p><p>Things have definitely changed for the better</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1630742, member: 2736"] Before we had quality chronographs, or no chronograph at all we established muzzle velocity using drop charts. Once we found the actual drop at known distances we could calculate the Bullet BC and the actual velocity. The only thing that we could count on was the actual drop chart. Sight settings/changes required good drop charts that matched the rifle and ammo used when changing distances during a match. we realy didn't worry about bullet BCs because of climate and altitude changes. and because most advertised BCs were incorrect for out location. Things have definitely changed for the better J E CUSTOM [/QUOTE]
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