MOA Scope ranging

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josh3rd

josh3rd

Member
Apr 2, 2015
954
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Newark, Delaware, United States
I should of put this in my last post but anyway, I have a SIH412X40FTMOA-20 and I am "assuming" that its a true MOA @ 12x. Ok, from what I've been reading, you take the target size in inches divide it by the amount of MOA hash marks in encompasses and multiply it by 95.5. But on sightron's site, it says: To determine the range of your target simply divide the height of the target
in MOA divided by the MOA on the reticle x 100 yards.

Ok, so lets say that I am shooting at a starling which is 7 inches and it is covered by 3 moa hash marks. Now I know that each moa mark in the scope is actually 2moa so each individual moa mark = 2moa. My question is: do I take the 7 inches and divide it by the 3 moa hash marks or do I divide it by 6 moa since its 2 moa per mark? Also do I convert the 7 inch bird into moa? If so, then how can I do that if i don't know the range?
 
With todays laser range finders using scopes to range would be a last resort due to a laser rangefinder dying in the field. I know some people probably just want to know how to range with their scope but doing it in the field while trying to make a shot on a target thats not guaranteed to sit still is tough.
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Very true. I have a shelf full of scopes with various reticle configurations. So. anytime I attempt ranging, I first have to realize which scope I have, and then think about the math involved. At air gun distances, the FT approach of using the focus adjustment is the most practical, although it does require a scope of greater power than most of us would typically use hunting. I have almost gone full circle on this thing, and decided if I'm in a situation where determining range is critical, I'll have my range finder with me. So, maybe I'm ready to get all the clutter out of the way, and go back to a simple, fine duplex reticle. I've never had better results with anything else. 
 
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16x is enough to range with the side wheel out to at least 40-45 why not just use the side wheel. I've taken a lot of squirrels on 20x ( only hope of a brain shot w/my eyes) & had a 6" side wheel I could use my right thumb on while holding the rifle naturally. 1-2seconmds to focus/range then one fast adjustment w/elevation knob & instant death.





John
 
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What is not clear? Go back to the other 16x post you created I sent you the link from Wikipedia it has the formula for a scope with a magnification.

try to use one in mms or inches only if that is the part what is confusing you, once you figure it out it will click in your head and you will be fine



the formula is dead easy it is down half way through the page where the estimating range with the hands, fingers picture is

there in this. Are you just plain lazy or what.😁

https://en.m.wikipedia.org/wiki/Milliradian



if you have the mag set at only 4x and if that scope is true mildot at 12 not 10

, all you do is the multiplicator in the formulas is 4/12. 



those other weird constants come from inch to metric conversions if people mix the two systems no rocket science. I would go just metric.

having said that I can not guarantee that what quality scope you gphave and if it says 16x if it is truly 16x 😄
 
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