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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How close is the cosign rule in slope shooting?
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<blockquote data-quote="Blackbears4ever" data-source="post: 1986521" data-attributes="member: 115249"><p>The cosine formula is tremendously accurate providing the angle & distance is carefully measured. I also hunt a lot of steep country that often presents steep downhill shots. I have tested my range finder that has the true horizontal distance calculation (tbr) in the display, an older Leupold RX-1200TBR. Lots of good tbr rangefinders on the market. My rangefinder is very accurate on distance both on flat ground & uphill / downhill. I was fortunate enough to be able to place targets at 50yd intervals out to 450yds on a 50degree slope. Impacts on target we're virtually identical to flat ground. Since you have to use a rangefinder anyway you can forget about errors in calculating & using a table. Just range and shoot. I hope a big Bull is in your future.</p></blockquote><p></p>
[QUOTE="Blackbears4ever, post: 1986521, member: 115249"] The cosine formula is tremendously accurate providing the angle & distance is carefully measured. I also hunt a lot of steep country that often presents steep downhill shots. I have tested my range finder that has the true horizontal distance calculation (tbr) in the display, an older Leupold RX-1200TBR. Lots of good tbr rangefinders on the market. My rangefinder is very accurate on distance both on flat ground & uphill / downhill. I was fortunate enough to be able to place targets at 50yd intervals out to 450yds on a 50degree slope. Impacts on target we’re virtually identical to flat ground. Since you have to use a rangefinder anyway you can forget about errors in calculating & using a table. Just range and shoot. I hope a big Bull is in your future. [/QUOTE]
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How close is the cosign rule in slope shooting?
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