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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Reticle subtension measurements
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<blockquote data-quote="sscoyote" data-source="post: 20318" data-attributes="member: 1133"><p>Yeah Ian, it is a shame they don't provide a good std. to work with. I'm trying to get my plex measurements as accurate as possible for ranging, zeroing, windage applications and changes in all 3 with magnification changes. I used to have a sign post with holes drilled in it at 1" intervals out the front window of my house @ 102 yds. that provided a good reference system to use, but we moved so that option's out. I wanted to get measurements down to .1", but i couldn't get enuf resolving power anyway for that. The websites/literature are another option, but sometimes they're not accurate-- case in point is the Burris Ballistic Plex, horizontal plex post to post "gap" is not what they advertise in my scopes. It's supposed to be 4.1" for the 3-12X LER, but i've found it to measure about 6" in 1 of mine. They always seem to be right regarding the ballistc stadia, but not always with the plex gap measurements. I've also read that sometimes the mil-dot is not correct @ the calibrated magnification, but i checked my 6-24X Burris Ballistic Mil-dot, and it's right on the nose, and seems to be reproducible. I actually have another sign post out my new window @ 119 yds. that gives me a std. that i just started to work with, but again probably only accurate to .5" maybe. Oh well, i guess i'll just have to punt for now. I recently started applying a windage reference system using the horizontal plex post as a relative measurement in tenths of a plex "unit" that's working pretty well for me, so i guess maybe i don't have to get that accurate. "Punting" seems to be working, but i certainly welcome a more accurate system.</p><p> U know, come to think of it i might just give Michael O'Donnell a call @ TK Lee. He's a pretty good guy who might be able to shed some light on the subject. Thks. guys for the response's.</p><p></p><p>[ 10-30-2004: Message edited by: sscoyote ]</p></blockquote><p></p>
[QUOTE="sscoyote, post: 20318, member: 1133"] Yeah Ian, it is a shame they don't provide a good std. to work with. I'm trying to get my plex measurements as accurate as possible for ranging, zeroing, windage applications and changes in all 3 with magnification changes. I used to have a sign post with holes drilled in it at 1" intervals out the front window of my house @ 102 yds. that provided a good reference system to use, but we moved so that option's out. I wanted to get measurements down to .1", but i couldn't get enuf resolving power anyway for that. The websites/literature are another option, but sometimes they're not accurate-- case in point is the Burris Ballistic Plex, horizontal plex post to post "gap" is not what they advertise in my scopes. It's supposed to be 4.1" for the 3-12X LER, but i've found it to measure about 6" in 1 of mine. They always seem to be right regarding the ballistc stadia, but not always with the plex gap measurements. I've also read that sometimes the mil-dot is not correct @ the calibrated magnification, but i checked my 6-24X Burris Ballistic Mil-dot, and it's right on the nose, and seems to be reproducible. I actually have another sign post out my new window @ 119 yds. that gives me a std. that i just started to work with, but again probably only accurate to .5" maybe. Oh well, i guess i'll just have to punt for now. I recently started applying a windage reference system using the horizontal plex post as a relative measurement in tenths of a plex "unit" that's working pretty well for me, so i guess maybe i don't have to get that accurate. "Punting" seems to be working, but i certainly welcome a more accurate system. U know, come to think of it i might just give Michael O'Donnell a call @ TK Lee. He's a pretty good guy who might be able to shed some light on the subject. Thks. guys for the response's. [ 10-30-2004: Message edited by: sscoyote ] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Reticle subtension measurements
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