Steve Anderson Posted June 7, 2002 Share Posted June 7, 2002 What is the best distance to zero the dot for NRA action? The consensus for IPSC seems to be 10 yards, but that isn't the best for NRA, is it? Thanks, SA Link to comment Share on other sites More sharing options...
mloch Posted June 7, 2002 Share Posted June 7, 2002 The best distance to sight in your scope for NRA Action (specifically Bianchi Cup) is 50 yards. (Edited by mloch at 3:55 am on June 7, 2002) Link to comment Share on other sites More sharing options...
Steve Anderson Posted June 7, 2002 Author Share Posted June 7, 2002 Then you hold high for the closer stuff? Link to comment Share on other sites More sharing options...
Flexmoney Posted June 7, 2002 Share Posted June 7, 2002 Steve, I don't know the best distance to sight is for the cup... But, the lowest you will hit if you sight in for 50y will be the distance in height that you dot is above your bore. If you are using a slide-ride red dot (your firepoint?), it will be fairly close to the bore. There is more to this...but I need to do some work on a gun that I have been putting off. Link to comment Share on other sites More sharing options...
kaiserb Posted June 7, 2002 Share Posted June 7, 2002 I have checked into this lately, and ran some exterior balistics. With a 45 ACP hardball round if you sight in at 50 yds you are only 1.79" (maximum) high at 25 yards. At 10 or 15 yards you are within 1". Link to comment Share on other sites More sharing options...
Steve Anderson Posted June 7, 2002 Author Share Posted June 7, 2002 How bout a 9mm 124 or 135 at 975-1025 fps? That's flatter than a .45, right? Flex, we are talking about the Docter sight Beretta here, I'm convinced I can clean the plates with it. Tho dot is only 1" or less on top of the bore, so I should be good. I want to use the best compromise zero for steel, pins, and NRA AP. If I understand the logic here, the longer zero reduces the angle of the bullet rising to meet the line of the dot, therefore causing the overall trajectory to be flatter. A shorter, (closer) zero means the bullet keeps going up after it meets the point of intersection? If I got it right, that makes sense. SA Link to comment Share on other sites More sharing options...
xcount Posted June 8, 2002 Share Posted June 8, 2002 What if you tried 40 - 45 yards? Link to comment Share on other sites More sharing options...
gm iprod Posted June 9, 2002 Share Posted June 9, 2002 I use 115gr JHP at 1200fps for about 140PF for Bianchi/NRA. Sight at fifty and see what your pistol/Loads do, at 10yard intervals. My scope on an Open class pistol is about 1.75" above bore. Thanks to the mover base and barricade wings etc. Sierra manual says, 115gr JHP at 1200fps. Zero at 50 and nothing goes over .5" high all the way along. And still only 2.3" low at 75. If you miss, its you. Link to comment Share on other sites More sharing options...
Steve Anderson Posted June 9, 2002 Author Share Posted June 9, 2002 Thanks. SA Link to comment Share on other sites More sharing options...
Alan550 Posted August 21, 2002 Share Posted August 21, 2002 I'm running a 125 gr. 9X23 @ ~ 1150, and sighted it at 25 yds. With sight-over-bore at 1.75" I'm still "on" at 50 for the practical, and have to hold a bit [1.5"] high at 10 for a perfect center hit. It's still an "X" ring shot at all the distances with a center hold if I do my part. Link to comment Share on other sites More sharing options...
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