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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
How do you use a Mil-Dot scope?
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<blockquote data-quote="sscoyote" data-source="post: 114187" data-attributes="member: 1133"><p>That Nikon system is a great one for the mil-dot. If u get the catalog, it gives the subtensions at 3 different magnifications which really is an excellent system (also tells me the power ring is calibrated properly as well).</p><p></p><p>Nice thing about the mil-ranging formula is that it's not specific to the milliradian mil-dot at all. It's simply the geometric formula that defines the relationship between 2 points at 1 distance relative to two points at another distance. In other words it can be used with any reticle's stadia subtension/subtensions, i.e. plex,custom, ballistic or ranging (even archery sight pins as well). Here's the mil-ranging formula in it's most basic form (inches to yards)--</p><p></p><p>tgt. size (") x range of reticle subtension measurement (yds.) / subtension (") / qty. of "gap" tgt occupies (tenths of each stadia-stadia gap) = range (yds.)</p><p></p><p>IMO, this is super-handy to know as it provides ranging at the highest power where it's most accurate (most of the time), and makes for a very flexible system.</p><p></p><p>I really like Leupold's TMR, as it provides for .02 mil (.07 MOA) accuracy for ranging. We tested it awhile back, and found it to be within 3% of lasered out to 1000 yds. almost every time, and 1% most of the time on 15, 24 and 36" discs. Varmint Hunter reticle stadia were also used for ranging using the above equation with similar results as well as Ballistic Plex.</p></blockquote><p></p>
[QUOTE="sscoyote, post: 114187, member: 1133"] That Nikon system is a great one for the mil-dot. If u get the catalog, it gives the subtensions at 3 different magnifications which really is an excellent system (also tells me the power ring is calibrated properly as well). Nice thing about the mil-ranging formula is that it's not specific to the milliradian mil-dot at all. It's simply the geometric formula that defines the relationship between 2 points at 1 distance relative to two points at another distance. In other words it can be used with any reticle's stadia subtension/subtensions, i.e. plex,custom, ballistic or ranging (even archery sight pins as well). Here's the mil-ranging formula in it's most basic form (inches to yards)-- tgt. size (") x range of reticle subtension measurement (yds.) / subtension (") / qty. of "gap" tgt occupies (tenths of each stadia-stadia gap) = range (yds.) IMO, this is super-handy to know as it provides ranging at the highest power where it's most accurate (most of the time), and makes for a very flexible system. I really like Leupold's TMR, as it provides for .02 mil (.07 MOA) accuracy for ranging. We tested it awhile back, and found it to be within 3% of lasered out to 1000 yds. almost every time, and 1% most of the time on 15, 24 and 36" discs. Varmint Hunter reticle stadia were also used for ranging using the above equation with similar results as well as Ballistic Plex. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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How do you use a Mil-Dot scope?
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