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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7MM RUM/WC872 and the chrony ...
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<blockquote data-quote="Guest" data-source="post: 27411"><p>Dwm...Two possibilities come to mind, light changing as the sun moves may cause different readings, and your barrel may be to short to show a significant velocity increase.</p><p> </p><p>Just as a reference, 4 additional grains of 50 BMG will cause an increase of 120 fps. in a 30 inch barrel in a 30 Wolf, when your base load is at 65,000 psi.</p></blockquote><p></p>
[QUOTE="Guest, post: 27411"] Dwm...Two possibilities come to mind, light changing as the sun moves may cause different readings, and your barrel may be to short to show a significant velocity increase. Just as a reference, 4 additional grains of 50 BMG will cause an increase of 120 fps. in a 30 inch barrel in a 30 Wolf, when your base load is at 65,000 psi. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7MM RUM/WC872 and the chrony ...
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