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<blockquote data-quote="436" data-source="post: 1728564" data-attributes="member: 16609"><p>I think as MOA hunting rifles go, or close to it'..., you'll find that the example is pretty true, again it's not absolute in every case and rifle, but it should give you a good baseline to consider. Assuming you know your drops in minutes of angle (MOA), an old rule of thumb is to add 0.5 to 1.0 MOA per 5,000 feet of elevation gain: "elevation up, bullet up." And to compensate 0.5 to 1.0 MOA per 20 degrees (Fahrenheit) of temperature change: "cold down, warm-up." It's a useful (rule of thumb) or guideline as long as you recognize its limitations. Personally, over the years, I've found this pretty true in my sporting rifles as a general (wet finger) in the air rule. Where it would show up the most; was in my work rifles do to the overall higher precision of those rifles. At, most reasonable game ranges the bullets really arn't affected that much by the aforementioned do to the size of the vitals and the range of the game '.., but... on long-range shots they are; i.e at 1k 1.0 MOA is off 10.0 MOA at POI that's a lot of change in a rifle match when you are winning by X's The other problem that might bite you is.. "very High-Low" temperature changes throughout the day in a hunt or the next day, where temperatures might change 30 plus degrees or more I believe you can work out what the problem would be with that. </p><p>Read some of G David Tubb experiences in this, I shot with him a few times at NRA Whittington Center, Raton, NM he's a fountain of knowledge on subjects like this. As always; good luck with your project.</p></blockquote><p></p>
[QUOTE="436, post: 1728564, member: 16609"] I think as MOA hunting rifles go, or close to it'..., you'll find that the example is pretty true, again it's not absolute in every case and rifle, but it should give you a good baseline to consider. Assuming you know your drops in minutes of angle (MOA), an old rule of thumb is to add 0.5 to 1.0 MOA per 5,000 feet of elevation gain: "elevation up, bullet up." And to compensate 0.5 to 1.0 MOA per 20 degrees (Fahrenheit) of temperature change: "cold down, warm-up." It's a useful (rule of thumb) or guideline as long as you recognize its limitations. Personally, over the years, I've found this pretty true in my sporting rifles as a general (wet finger) in the air rule. Where it would show up the most; was in my work rifles do to the overall higher precision of those rifles. At, most reasonable game ranges the bullets really arn't affected that much by the aforementioned do to the size of the vitals and the range of the game '.., but... on long-range shots they are; i.e at 1k 1.0 MOA is off 10.0 MOA at POI that's a lot of change in a rifle match when you are winning by X's The other problem that might bite you is.. "very High-Low" temperature changes throughout the day in a hunt or the next day, where temperatures might change 30 plus degrees or more I believe you can work out what the problem would be with that. Read some of G David Tubb experiences in this, I shot with him a few times at NRA Whittington Center, Raton, NM he's a fountain of knowledge on subjects like this. As always; good luck with your project. [/QUOTE]
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