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Hunting
Extreme Long Range Hunting & Shooting (ELR)
SCOPE ZERO FOR OVER 1000 YRDS
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<blockquote data-quote="jdavistx" data-source="post: 1945262" data-attributes="member: 89418"><p>If it was me, let me simply explain that my comment was with reference to a shooter who seemed to imply 1MOA (1 inch @95.5yards) vs 1.047" @ 100 yards or .47" change @ 1000 yards adds up over distance. So I can't - It is a 100% reliability. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p>I think it makes literally no difference at distance with so many other variables to consider, like wind. For me, it doesn't matter much what my MPBR is. I used to shoot 3" high at 100 yds (7mm RM) and it works. The reason to test at longer distances is to expose problems where you don't necessarily see them (resolution) and their impact on accuracy at 100 yards. Especially reading wind. My avatar represents my new 7mm RM at 100 yards, Berger 168gr HVLD's @2950 fps MV, 0.308 G7. 5 shots, 1 hole, 0.26MOA. I didn't really learn anything other than I have a good load for the weapon. The further you move out the more problems start to show up which can be addressed if necessary.</p><p>I would say "major" environmental changes can make a significant difference depending on range. Change your base parameter model by air density (say a delta of 50˚ and 5,000 feet, etc.) and see what you get. Typical of Arizona vs Colorado, or desert vs mountains. If you're less than 300 yards, MPBR is usually fine depending on the system employed and target. Or if you're a nerd like me, I do a WEZ analysis which takes most major variables into account and gives you probability of a hit on a certain size target at distance. </p><p></p><p>Either way, each shooter does what works for them. Just one man's opinion. Happy hunting! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="jdavistx, post: 1945262, member: 89418"] If it was me, let me simply explain that my comment was with reference to a shooter who seemed to imply 1MOA (1 inch @95.5yards) vs 1.047" @ 100 yards or .47" change @ 1000 yards adds up over distance. So I can't - It is a 100% reliability. :) I think it makes literally no difference at distance with so many other variables to consider, like wind. For me, it doesn't matter much what my MPBR is. I used to shoot 3" high at 100 yds (7mm RM) and it works. The reason to test at longer distances is to expose problems where you don't necessarily see them (resolution) and their impact on accuracy at 100 yards. Especially reading wind. My avatar represents my new 7mm RM at 100 yards, Berger 168gr HVLD's @2950 fps MV, 0.308 G7. 5 shots, 1 hole, 0.26MOA. I didn't really learn anything other than I have a good load for the weapon. The further you move out the more problems start to show up which can be addressed if necessary. I would say "major" environmental changes can make a significant difference depending on range. Change your base parameter model by air density (say a delta of 50˚ and 5,000 feet, etc.) and see what you get. Typical of Arizona vs Colorado, or desert vs mountains. If you're less than 300 yards, MPBR is usually fine depending on the system employed and target. Or if you're a nerd like me, I do a WEZ analysis which takes most major variables into account and gives you probability of a hit on a certain size target at distance. Either way, each shooter does what works for them. Just one man's opinion. Happy hunting! :) [/QUOTE]
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Extreme Long Range Hunting & Shooting (ELR)
SCOPE ZERO FOR OVER 1000 YRDS
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