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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
BDC Turret knobs
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<blockquote data-quote="Ridge Runner" data-source="post: 109872" data-attributes="member: 951"><p>just by playing with a ballistics program, I found that a 4" change in the bar pressure will cause you to miss the proverbial "broadside of a barn" at 1500 yds. I'm talking a change in POI of over 100". BDC's do not take atmosperic changes into consideration.The BDC's if you do your homework before having it made work well to about 700 yds, beyond this the everchanging weather conditions have to much effect on POI.</p><p>JS</p></blockquote><p></p>
[QUOTE="Ridge Runner, post: 109872, member: 951"] just by playing with a ballistics program, I found that a 4" change in the bar pressure will cause you to miss the proverbial "broadside of a barn" at 1500 yds. I'm talking a change in POI of over 100". BDC's do not take atmosperic changes into consideration.The BDC's if you do your homework before having it made work well to about 700 yds, beyond this the everchanging weather conditions have to much effect on POI. JS [/QUOTE]
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BDC Turret knobs
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