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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Interesting reticle ranging tests
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<blockquote data-quote="sscoyote" data-source="post: 108853" data-attributes="member: 1133"><p>Just got back from the Bower Long-Range Handgun Shoot Marc Sheehan, Ernie Bishop, and I put on in Springview NE. last week. Got my 8.5-25X Leup. Mk 4 with TMR reticle, and mounted it on a 6.5 WSM XP-100. We had a shooting lane set up with tgts. out to 1000 yds. We used 15, 24, and 36" discs at various 50 yd. intervals, so i set up off the bench to check the system. As far as i can see the reticle can be interpolated to an accuracy of about .01 mil (twentieth of each .2 mil line stadia) maybe with some practice, which should be pretty accurate. OK, here's some of the calcs.</p><p></p><p>lasered range/tgt. size/subtension occupied/ calc'd range</p><p></p><p>500/24"/1.29 mil/ 517</p><p>550/24/1.21/551</p><p>600/24/1.15/580</p><p>700/24/.95/702</p><p>800/24/.825(optimistically)/808</p><p>pretty good considering midday mirage was present.</p><p></p><p>One 450 yd. 17.2" plate was reticle-ranged using what i refer to as the modified mil-ranging formula using the 2nd stadia of the Varmint Hunter reticle (4.32 IPHY) as follows--</p><p></p><p>17.2 x 100/4.32/.9 = 442</p></blockquote><p></p>
[QUOTE="sscoyote, post: 108853, member: 1133"] Just got back from the Bower Long-Range Handgun Shoot Marc Sheehan, Ernie Bishop, and I put on in Springview NE. last week. Got my 8.5-25X Leup. Mk 4 with TMR reticle, and mounted it on a 6.5 WSM XP-100. We had a shooting lane set up with tgts. out to 1000 yds. We used 15, 24, and 36" discs at various 50 yd. intervals, so i set up off the bench to check the system. As far as i can see the reticle can be interpolated to an accuracy of about .01 mil (twentieth of each .2 mil line stadia) maybe with some practice, which should be pretty accurate. OK, here's some of the calcs. lasered range/tgt. size/subtension occupied/ calc'd range 500/24"/1.29 mil/ 517 550/24/1.21/551 600/24/1.15/580 700/24/.95/702 800/24/.825(optimistically)/808 pretty good considering midday mirage was present. One 450 yd. 17.2" plate was reticle-ranged using what i refer to as the modified mil-ranging formula using the 2nd stadia of the Varmint Hunter reticle (4.32 IPHY) as follows-- 17.2 x 100/4.32/.9 = 442 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Interesting reticle ranging tests
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