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MOA setup help

 
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  #22  
Old 02-21-2012, 11:02 AM
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Join Date: Mar 2008
Location: SW Idaho
Posts: 1,170
Re: MOA setup help

Quote:
Originally Posted by beakus33 View Post
S.O.B. It just clicked, per m.o.a. But i still dont understand the IPHY. Is there some place i can see it written down or a graph to see if it makes a differance or will it with a moa scope. How in the hell is one supposed to figure all this crap from behind a gun if your butts getting shot at.I mean really is there cheater sheets, crap and i havent ever gotten into windage yet.
What they are saying is correct. The error between IPHY and MOA is .0472. This error has to be accounted for every 100 yards of distance to the target AND for each MOA (or 4 clicks or the turret) of adjustment needed to get on target at the distance you are shooting.

Try not to get too caught up in the math though. It can drive you crazy! The good news is once you measure your clicks, so you can find out exactly how far your turrets moves per click, and then adjust your ballistic software to match you don't have to worry anymore!

Scot E.
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  #23  
Old 02-21-2012, 07:15 PM
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Re: MOA setup help

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Originally Posted by D.ID View Post
IPHY is often referenced in an attempt to draw a distinction between itself and moa but more often than not just adds confusion. Hence my earlier suggestion that you confirm you scope tracks in moa and then forget IPHY.
No, you cannot just 'forget' the number of inches per 100hyds.
Unless your scope adjusts to 1.047 inches per 100yds, it is not MOA.
If it doesn't adjust to 3.6" per 100yds it is not MIL.
You then have however many IPHY your scope actually is.

In all reality, IPHY is the easiest system, and also highest in precision.
Any American could snap right off the top of their head that 1 IPHY is 6" @ 600yds.
We can easily visualize & roughly measure it.

But whatever your adjustments are, it can be entered & used to derive correct clicks, or reticle hold-offs in ballistic software.
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  #24  
Old 02-21-2012, 09:33 PM
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Join Date: Dec 2008
Location: Boise IDAHO
Posts: 838
Re: MOA setup help

OK.......just to clarify what I mean: my 338 needs 80 clicks @870yards /4k ft /70 degrees with my standard load in my rifle with my scope. once this is confirmed the terminology means nothing. How many inches is that? I do not remember and it does not matter. How many mils? who cares my scope does not adjust in mils. My only point is whatever terminology you use, the only thing that matters is the reality and your understanding of it or in other words: do not get bogged down worrying about things irrelevant to your system.
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  #25  
Old 02-21-2012, 09:46 PM
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Join Date: Dec 2008
Location: Boise IDAHO
Posts: 838
Re: MOA setup help

mikcr.............you are of course right if you scope doesn't track accurately......but if you verify and find that it does it is easier with todays available software to calculate in moa as opposed to iphy plus correction.
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  #26  
Old 02-22-2012, 09:41 PM
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Join Date: Feb 2012
Location: wichita ks
Posts: 85
Re: MOA setup help

ok here's what i think i'm gonna do, get an a**load of ammo,go sight in @100yds, step back per 100,shoot till i get center then carve it into my stock and say to hell with the math, i didnt like it any way. thanks D.ID, I like the way you think.
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  #27  
Old 02-22-2012, 09:49 PM
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Join Date: Feb 2012
Location: wichita ks
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Re: MOA setup help

Quote:
Originally Posted by Bravo 4 View Post
Here are some more good reads: Shooting References

thanks for the info,now all i need is somebody to explane all of that to me.
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  #28  
Old 02-22-2012, 10:16 PM
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Join Date: Dec 2008
Location: Boise IDAHO
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Re: MOA setup help

A little farther than I wood go and not exactly what I meant, but thanks for the chuckle. Good luck in your pursuits, Verify you adjustments. My only point was to keep it as simple as need be. It is not rocket science or complex mathematics but it gets confusing if you over think it. Take her easy.
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