Wasn't sure the best forum for this question but this one seemed to make the most sense. SO I understand sight radius on the rifle and MOA. I tried my best to find math formula for what I am asking but no luck. So my question is, for most rifles with iron sights, if you shave the front sight lower by .01, does that generally equate to 1 inch at 100yds? Thanks.
Filing front sight for POI Adjustments
- Thread starter Chief TC
- Start date
Thanks, so can you share with the me the exact formula for determining this?
Ahhh - nevermind. I get it. .01/sight radius x 3600 = POI change. Thanks!
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First choose what you know, two sides or one side and one angle. (scroll down a little to see the triangle diagram) Then just plug in the numbers. First I figured the angle of .010” over 14”. which came out to the .0409 degrees. Then fill in that angle over 3600” to get get your answer of 2.57”.
DukeConnor
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I believe the Skinner sight has calculators
Bwana John
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Similar triangles.
You need to know the sight radius and height of front and rear sight above the centerline of the bore, the distance to the target, and the amount of change in poi you want.
You need to know the sight radius and height of front and rear sight above the centerline of the bore, the distance to the target, and the amount of change in poi you want.
I believe you changed it to an algebra problem. And that works too!
haha - I need math to be simple - thanks again!I believe you changed it to an algebra problem. And that works too!
jmorris
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You could always just plug in the correct numbers into one of the many on line calculators.
Sight Correction Calculator
Dillon Precision: Reloaders, Reloading Equipment, Bullet Reloading, Bullet Reloaders
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Thanks everyone. And another question for me the mathematically challenged. If your POI is 4 inches above your POA at 100, does this also multiply accordingly at distance with blade iron shights? I mostly shoot vernier sights with apertures, so I never took notice of it with open sights. So in my example, does that mean 8 inches above POA at 200 and 12 inches above POA at 300? etc?
BBBBill
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Only if you don't take the external ballistics of the round into account. If you were in space far enough from any celestial objects to avoid the effects of gravity, then yes.
