My scope's have been rock solid as far as holding zero so far. Taking 7mm rm and .270 from 400 ft to 9k ft. In less dense air and a slightly reduced acceleration of gravity you would expect them to shoot high. Both are zeroed at 200. Ballistics calculation on the 7mm rm show that you could expect a little less than 1/4 moa or 1/10 mil rise at 200 yards. I am thinking just compute dope for 9k and be done.
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I do the middle so 4500 ft and like 50degrees -
How far do you expect to shoot? I would dope it but anything less than several hundred yards should not make an issue.
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I always prepare for 600 but I have taken all my shot less than 400.Originally posted by Take em View PostComment
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1/4 moa difference at 200yards will not be noticeable at 600 as human error will be greater than that. I would take a test shot up there and can just adjust the dope accordingly.
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Thanks all for confirming.Comment
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If you know you’re dope at 100 and have all your data at 9000k then there should be zero need to rezero. Within 100-200 yds it doesn’t make enough difference to matter. If your actually having to make adjustments your conditions should be accounted for anyways.Comment
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