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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Muzzle Velocity Inconsistent
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<blockquote data-quote="J E Custom" data-source="post: 510571" data-attributes="member: 2736"><p>If you have your screens set at 4' between the front screen and the back screen use the 4', times </p><p>4 or 5 to get 16 or 20 feet and then you can calculate Actual muzzle velocity by the velocity drop</p><p>between the screens (If you have a proof screen) Example: 5 ft/sec loss in 4 feet x 4(16') = 20</p><p>ft/sec more than chronograph velocity. (Note : this is not exact because velocity loss starts at</p><p>the muzzle but it is very close).</p><p></p><p>This will make your drop tables as accurate as possible but you still need to shoot at range to </p><p>verify actual drop.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 510571, member: 2736"] If you have your screens set at 4' between the front screen and the back screen use the 4', times 4 or 5 to get 16 or 20 feet and then you can calculate Actual muzzle velocity by the velocity drop between the screens (If you have a proof screen) Example: 5 ft/sec loss in 4 feet x 4(16') = 20 ft/sec more than chronograph velocity. (Note : this is not exact because velocity loss starts at the muzzle but it is very close). This will make your drop tables as accurate as possible but you still need to shoot at range to verify actual drop. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Muzzle Velocity Inconsistent
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