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First competition this weekend

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Unread 02-11-2004, 06:46 PM
Platinum Member
Join Date: May 2001
Posts: 2,369
Re: First competition this weekend


That 33.5 up is from a 300 yard zero so add another 5 MOA to get that needed from a 100 yard zero (38.5 MOA for 100 to 1000).


You can use the Leupold you have, just use the Mildots for holdover and add the available "clicks". Each Mil is 3.44 MOA and you apparently have 5 Mils from center crosshair to the top of the lower bar...this gives you 17.2 MOA of "holdover" to add to the 12.5 MOA of available scope adjustment. You should have about 29.7 MOA to use...this equates to about 310 inches of correction at 1000 yards (hope my math is correct 29.7*1.047*10)...if you're using a standard backer (72 inches I believe but you should check) your bullseye will be 36 inches down from the top of the backer... aim at the top of the backer directly over the center of the target and you now have 346 inches of correction. (Will someone please do a sanity check on those numbers to make sure I got it close.)

Or to really confuse the issue... change the power on your scope a little (try about 8X) and make the MOA value between the MilDots greater... you should be able to get to a point where you can use a mildot as the "new" aiming point... at 1000 yards.

[ 02-11-2004: Message edited by: Dave King ]
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Unread 02-12-2004, 08:15 AM
Junior Member
Join Date: Feb 2004
Location: Alabama
Posts: 9
Re: First competition this weekend

Thanks again Dave, you're really clearing things up for me. Your last reply brings up another simple question i had. i've been reading up on range estimation with mil dots. the formula i've been toying with is target height (in) * 27.778 / height in mil dots. is this assuming you're using the 10 power setting on you scope?
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Unread 02-12-2004, 09:05 AM
Platinum Member
Join Date: May 2001
Posts: 2,369
Re: First competition this weekend

You're welcome.

Mil range estimation is a lenghty subject. The reticle MilDots must be calibrated to a specific power (probably 10 on your Leupold) of in the focal plane that is non-magnifying. If you do a search here about mildot ranging you'll find a ton of info.

You can check your scope by painting or taping a few 4" stripes on a piece of cardboard or anything else and verify your mildots on it from 111 yards, or just paint or tape 3.6" marks and verify the mildots from 100 yards. You should verify ALL the mildots on your reticle (horizontal and vertical)...sometimes they're a little off from the Leupold factory (I had one like that).

Get a MilDot Master from Bruce Robinson... it'll be money well spent.
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