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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Why the love for MOA?
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<blockquote data-quote="sscoyote" data-source="post: 543357" data-attributes="member: 1133"><p>Hey it's all good anyway. I think it gives guys that have been using the systems for a long time some addtl. perspectives on the subject and more knowledge (thks. Lou, et al) as well. I'm sure the guys responding to this thread aren't the only ones going away with some more tidbits of knowledge that can be drawn upon when needed in the future...here, here.</p><p></p><p>If i'm not mistaken the Zeiss Rapid Z also uses IPHY stadia lines (.5" i think) for rangefinding though it's practical application is much more than advertised. Interestingly though those stadia are kinda' thick for that app. IMO it could actually be beneficial to begin subtracting a stadia thickness for the subtension unit (something Darrell Holland now teaches at his school). I did this at this shoot a couple years ago (<a href="http://www.moaguns.com" target="_blank">MOA Corporation Homepage</a>) using a US Optics spotting scope with an MOA reticle and figured i'd just use 1.00 IPHY as my unit of subtension and got very close to calculating the size of some of the targets out to as far as 750 yards (better than using 1.047 IPHY). Also did it on an antelope buck several years ago while hunting coyotes and was just a couple yds. off at ~300 yds. or so using the Ball. Plex reticle in a 3-12x handgun scope i was using at the time.</p><p></p><p>I 'll never forget what the guy told me that got me started on applying this math in the field. He said "it takes just the right sort--basically a marksman that has just a bit more than a passing interest in math." He's right!</p></blockquote><p></p>
[QUOTE="sscoyote, post: 543357, member: 1133"] Hey it's all good anyway. I think it gives guys that have been using the systems for a long time some addtl. perspectives on the subject and more knowledge (thks. Lou, et al) as well. I'm sure the guys responding to this thread aren't the only ones going away with some more tidbits of knowledge that can be drawn upon when needed in the future...here, here. If i'm not mistaken the Zeiss Rapid Z also uses IPHY stadia lines (.5" i think) for rangefinding though it's practical application is much more than advertised. Interestingly though those stadia are kinda' thick for that app. IMO it could actually be beneficial to begin subtracting a stadia thickness for the subtension unit (something Darrell Holland now teaches at his school). I did this at this shoot a couple years ago ([url=http://www.moaguns.com]MOA Corporation Homepage[/url]) using a US Optics spotting scope with an MOA reticle and figured i'd just use 1.00 IPHY as my unit of subtension and got very close to calculating the size of some of the targets out to as far as 750 yards (better than using 1.047 IPHY). Also did it on an antelope buck several years ago while hunting coyotes and was just a couple yds. off at ~300 yds. or so using the Ball. Plex reticle in a 3-12x handgun scope i was using at the time. I 'll never forget what the guy told me that got me started on applying this math in the field. He said "it takes just the right sort--basically a marksman that has just a bit more than a passing interest in math." He's right! [/QUOTE]
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Why the love for MOA?
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