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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Scope questions
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<blockquote data-quote="gcbailey" data-source="post: 887737" data-attributes="member: 47132"><p>There are many differing opinions on scopes magnification and turret types. My personal opinion is to stay away from BDC reticles. Your trajectory changes with altitude, wind, temperature, humidity, barometric pressure, etc. A BDC knob will work for one condition. Usually it is calibrated for standard conditions unless you provide your own data, but even then it is set for what the conditions were when you calculated that information. Out to around 400 yards the variance will most likely be minimal, however, as you go further out, small differences mean large errors. The farther you shoot, the more noticeable the errors become. If you plan to shoot in one location where altitude and weather doesn't vary much (i.e. Florida) and shoot within 400 yards, a BDC would probably be fine but why limit yourself? Nothing replaces range time and knowing the capability of your rifle. I personally find BDC knobs to be more of a marketing gimmick but that's just me.</p></blockquote><p></p>
[QUOTE="gcbailey, post: 887737, member: 47132"] There are many differing opinions on scopes magnification and turret types. My personal opinion is to stay away from BDC reticles. Your trajectory changes with altitude, wind, temperature, humidity, barometric pressure, etc. A BDC knob will work for one condition. Usually it is calibrated for standard conditions unless you provide your own data, but even then it is set for what the conditions were when you calculated that information. Out to around 400 yards the variance will most likely be minimal, however, as you go further out, small differences mean large errors. The farther you shoot, the more noticeable the errors become. If you plan to shoot in one location where altitude and weather doesn't vary much (i.e. Florida) and shoot within 400 yards, a BDC would probably be fine but why limit yourself? Nothing replaces range time and knowing the capability of your rifle. I personally find BDC knobs to be more of a marketing gimmick but that's just me. [/QUOTE]
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