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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
What irritates me about sub MOA
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<blockquote data-quote="Capt RB" data-source="post: 1038298" data-attributes="member: 85987"><p>Another aspect not mentioned much if at all is how your zero will change with time of day and day of year when it is bright sun. I had mapped my zero changes for years. I always assumed that it was changing temps that moved my zero around the target during the day. It wasn't until I read a thread or article on how the position of the sun changes point of impact due to the light bending differently. As soon as I read that I knew I had the data to confirm that statement. </p><p> Flat light like cloudy or rain it's a rock solid zero. Map your zero through out the time of day and year and your cold bore will stabilize to a predictable pattern</p></blockquote><p></p>
[QUOTE="Capt RB, post: 1038298, member: 85987"] Another aspect not mentioned much if at all is how your zero will change with time of day and day of year when it is bright sun. I had mapped my zero changes for years. I always assumed that it was changing temps that moved my zero around the target during the day. It wasn't until I read a thread or article on how the position of the sun changes point of impact due to the light bending differently. As soon as I read that I knew I had the data to confirm that statement. Flat light like cloudy or rain it's a rock solid zero. Map your zero through out the time of day and year and your cold bore will stabilize to a predictable pattern [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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What irritates me about sub MOA
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