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Hunting
Long Range Hunting & Shooting
Suggestions on a new range finder or binoculars
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<blockquote data-quote="LRNut" data-source="post: 2779526" data-attributes="member: 3230"><p>AB is short for Applied Ballistics; software written by Bryan Litz. It is used in various RFs; my SIG uses it. Not sure what Revic uses. </p><p></p><p>AB compensates for barometric pressure, temp, etc. but also spin drift and aerodynamic jump. I zero my LR rifles at 500 yards, which means my 200 yard zero has a .2 to .3 inch offset, but still, at 1000 yards, spin drift requires a 1/2 MOA hold to the left in zero wind. My old BR7 doesn't correct for spin, and it is a pain to do the mental gymnastics to account for it.</p></blockquote><p></p>
[QUOTE="LRNut, post: 2779526, member: 3230"] AB is short for Applied Ballistics; software written by Bryan Litz. It is used in various RFs; my SIG uses it. Not sure what Revic uses. AB compensates for barometric pressure, temp, etc. but also spin drift and aerodynamic jump. I zero my LR rifles at 500 yards, which means my 200 yard zero has a .2 to .3 inch offset, but still, at 1000 yards, spin drift requires a 1/2 MOA hold to the left in zero wind. My old BR7 doesn't correct for spin, and it is a pain to do the mental gymnastics to account for it. [/QUOTE]
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Suggestions on a new range finder or binoculars
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