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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Need help Calculating how high to sight at 100 to hit at 500
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<blockquote data-quote="thorbird" data-source="post: 410075" data-attributes="member: 16001"><p>Can anybody with the Sierra ballistics program, or any program, help me out and tell me how many inches high I need to be at 100 yards to be on at 500?</p><p></p><p>I have 2 guns I need to know this for: </p><p></p><p>The first is a 6BRX with the Berger 108 BT (.243) traveling at 3050 FPS. </p><p></p><p>The second is a .308 with the 168 SMK (.308) traveling at 2,700 FPS. </p><p></p><p>The following is the same for both: They are both zeroed at 100 yards. The altitude would be 2,000 feet above sea level and temps at 75 degrees.</p><p></p><p>I can't find my Sierra program and I need this information by Saturday so I don't waste a bunch of ammo getting on target. My guess is that I probably need to be about 9 inches high at 100 for the 6BRX, and about 11 for the .308?</p><p></p><p>Thanks so much to anyone who can help me out.</p></blockquote><p></p>
[QUOTE="thorbird, post: 410075, member: 16001"] Can anybody with the Sierra ballistics program, or any program, help me out and tell me how many inches high I need to be at 100 yards to be on at 500? I have 2 guns I need to know this for: The first is a 6BRX with the Berger 108 BT (.243) traveling at 3050 FPS. The second is a .308 with the 168 SMK (.308) traveling at 2,700 FPS. The following is the same for both: They are both zeroed at 100 yards. The altitude would be 2,000 feet above sea level and temps at 75 degrees. I can’t find my Sierra program and I need this information by Saturday so I don’t waste a bunch of ammo getting on target. My guess is that I probably need to be about 9 inches high at 100 for the 6BRX, and about 11 for the .308? Thanks so much to anyone who can help me out. [/QUOTE]
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Need help Calculating how high to sight at 100 to hit at 500
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