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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Vari-range scopes and Mil-Dot;
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<blockquote data-quote="sscoyote" data-source="post: 712265" data-attributes="member: 1133"><p>Joe, I doubt that optic has the reticle in the FFP, it's probably in the SFP, as most of the less expensive optics are, and i doubt the mil-dot is setup for 24x, since most higher-powered scopes aren't set up that way. Most are at a lower power. Is there not some sort of indicator on the power ring somewhere? Most are setup to let folks know what power the optic must be on to mil-range correctly. Most are setup for 10, 12 or 14x, although there are a few exceptions to all these "mosts".</p><p></p><p>I'm going to assume that you have a SFP optic, so to understand the concept of why it must be on the correct power to range with, look through a window of your house at something outside...DISCREETLY and SAFELY of course. While keeping the center x-hair on some point adjust the power up and down, and you will see that the mil-dots move up and down on the target as you change power. This is why the optic must be set on the correct power so the distance between dots measures (subtends) 3.6" at 100 yds.</p><p></p><p>I think somebody mentioned above that the quality of reticle subtension changing with magnification is actually inversely proportional, because as you INCREASE magnification you DECREASE reticle subtension. Think about that concept as you change the power. For instance, if that optic is setup for 12x, at 24x (2x the magnification) it'll be about 1/2 of 3.6" at 100 yds. or 1.8".</p><p></p><p>BTW, welcome to the world of subtension vs. long-range shooting and rangefinding. It's one of the most intriguing and rewarding aspects of the shooting sports.</p><p></p><p>Oh and BTWx2, you should know how to say and spell subtension, as it may impress other shooters, and they will probably think you know something about shooting--it's worked for me.</p></blockquote><p></p>
[QUOTE="sscoyote, post: 712265, member: 1133"] Joe, I doubt that optic has the reticle in the FFP, it's probably in the SFP, as most of the less expensive optics are, and i doubt the mil-dot is setup for 24x, since most higher-powered scopes aren't set up that way. Most are at a lower power. Is there not some sort of indicator on the power ring somewhere? Most are setup to let folks know what power the optic must be on to mil-range correctly. Most are setup for 10, 12 or 14x, although there are a few exceptions to all these "mosts". I'm going to assume that you have a SFP optic, so to understand the concept of why it must be on the correct power to range with, look through a window of your house at something outside...DISCREETLY and SAFELY of course. While keeping the center x-hair on some point adjust the power up and down, and you will see that the mil-dots move up and down on the target as you change power. This is why the optic must be set on the correct power so the distance between dots measures (subtends) 3.6" at 100 yds. I think somebody mentioned above that the quality of reticle subtension changing with magnification is actually inversely proportional, because as you INCREASE magnification you DECREASE reticle subtension. Think about that concept as you change the power. For instance, if that optic is setup for 12x, at 24x (2x the magnification) it'll be about 1/2 of 3.6" at 100 yds. or 1.8". BTW, welcome to the world of subtension vs. long-range shooting and rangefinding. It's one of the most intriguing and rewarding aspects of the shooting sports. Oh and BTWx2, you should know how to say and spell subtension, as it may impress other shooters, and they will probably think you know something about shooting--it's worked for me. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Vari-range scopes and Mil-Dot;
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