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Rifles, Reloading, Optics, Equipment
Reloading
Altitude and it’s effect on load development?
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<blockquote data-quote="tankgijohn72" data-source="post: 1551226" data-attributes="member: 77441"><p>I do all of my load development at about 1500 feet elevation. I zero the rifle at 300 yds at 1500 ft. When going out west at 6500-10,000 ft, I had to dial my scope down 1/4 moa and I was in the center at 300. This was shooting 129 barnes lrx out of a .270 win. I have repeated this process with a .35 whelen (zeroed at 200 yds), a .300 WM, and a 26 nosler. You shouldn't see a drastic shift in zero when gaining altitude. Check zero at altitude and start hunting. Your drop/windage at extended ranges will change quite a bit when gaining/losing a lot of altitude and you will need to account for it.</p></blockquote><p></p>
[QUOTE="tankgijohn72, post: 1551226, member: 77441"] I do all of my load development at about 1500 feet elevation. I zero the rifle at 300 yds at 1500 ft. When going out west at 6500-10,000 ft, I had to dial my scope down 1/4 moa and I was in the center at 300. This was shooting 129 barnes lrx out of a .270 win. I have repeated this process with a .35 whelen (zeroed at 200 yds), a .300 WM, and a 26 nosler. You shouldn't see a drastic shift in zero when gaining altitude. Check zero at altitude and start hunting. Your drop/windage at extended ranges will change quite a bit when gaining/losing a lot of altitude and you will need to account for it. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Altitude and it’s effect on load development?
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