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Firearms >> Other Firearms >> Long Range Chances
http://www.kragcollectorsassociation.org/cgi-bin/yabb2/YaBB.pl?num=1551622662 Message started by psteinmayer on Mar 3rd, 2019 at 2:17pm |
Title: Re: Long Range Chances Post by Parashooter on Mar 16th, 2019 at 8:06pm psteinmayer wrote on Mar 16th, 2019 at 4:00pm:
I thought the Springfield/Vintage match was a combined event (running on two days). Do they let you register twice (once for each day)? Anyway, since you'd need to aim some 6-feet high to hit the 1000-yard bull and there ain't nothing up there but sky, eagles, and Lake Erie, you might as well cut another front blade short enough to get you in the center with your preferred hold. Center hold: +6.5 MOA x .008" = .051" shorter (presuming issue blade prints center at 200 yard setting and range) 6:00 hold: +2.1 MOA for 22" radius of aiming black x .008" = .017": Total .068" shorter Frame hold: +3.4 MOA for half of 6' frame height x .008 = .027": Total .078" shorter. You can check the blade at 100 yards by setting the elevation to 800 and looking for a group 39.6" above center bull - or 74.6 at 200 (presuming a MV near 2650 fps and BC near .500. Scrounge a chronograph!). If using a 6:00 hold, use an 8.8" aiming black to emulate the size of the 44" LR target black at 1000 yards. Leave the blade a bit tall and bring a file to the range for final adjustment. Once that short blade is finalized, see where she hits at the 200-yard setting and adjust your hold for the Springfield Match - or bring the original blade, a hammer, and a pin punch to Perry so you can swap out there. Long Range is a different animal - fun but frustrating! |
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