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I haven't done trig since high school. I think that's the appropriate discipline here?

How far would you need to move a rear sight on a pistol with a sight radius of 6.5" to move the point of impact 8" at 50 yards?

If you know and could show your work I'd appreciate it,

Thanks


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0.029 inches.

6.5 inches x 8 inches / (50 x 36) inches.

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Multiply the amount of error (E) in inches, by the sight radius (SR) in inches, and then divide the product by the distance (D) to the target in inches. (E x SR) / D = C

8x6.5/1800= approx .029"


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It's geometry- similar triangles. Convert the range to target into inches. Divide the site radius by the range in inches. That gives you a ratio of similar triangle sizes. Then, you could multiply the 8 inche drop you want by that ratio of similar triangle sizes.


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Pie times the radius squared. Is that correct??

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Originally Posted by hanco
Pie times the radius squared. Is that correct??


Depends on what type of pie it is


Originally Posted by mauserand9mm
Originally Posted by mauserand9mm
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ballpark .026" by my bonehead math.

I converted 50 yards to 150 feet since your sight radius is right at a half foot.

8/150 = X/.5


So 8 x .5 = 4.
4 divided by 150 = .026"

xarcher is more accurate, I rounded your sight radius to 6" for my math skillz….grin

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PM mathman.


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Does she have big thighs?

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Two light taps with a small brass hammer.

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A bigger math question is how many rounds do you need to shoot before you get it right?


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Originally Posted by Rock Chuck
A bigger math question is how many rounds do you need to shoot before you get it right?

That's usually how I do it...shoot, shoot, move, shoot, shoot, move.


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Home schoolin math. 7x13=28



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Originally Posted by HuntnShoot
Originally Posted by Rock Chuck
A bigger math question is how many rounds do you need to shoot before you get it right?

That's usually how I do it...shoot, shoot, move, shoot, shoot, move.

Do the math and save bullets. Ammo is in tight supply 😀


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Math is for old women and cripples.


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I'm impressed.


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Originally Posted by JefeMojado
Two light taps with a small brass hammer.


If I were doing it 4 taps would be required - the first two would be in the wrong direction, then it would take 4 taps to get it past were it was originally and where it needs to be.

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Originally Posted by drover
Originally Posted by JefeMojado
Two light taps with a small brass hammer.


If I were doing it 4 taps would be required - the first two would be in the wrong direction, then it would take 4 taps to get it past were it was originally and where it needs to be.

drover


Hahaha!

Yep.


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Originally Posted by Jim_Conrad
Originally Posted by drover
Originally Posted by JefeMojado
Two light taps with a small brass hammer.


If I were doing it 4 taps would be required - the first two would be in the wrong direction, then it would take 4 taps to get it past were it was originally and where it needs to be.

drover


Hahaha!

Yep.


So six taps actually. smile


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I was totally going to answer this, however, I decided to let some others have a chance for a change...


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Holocaust Deniers, the ultimate perverted dipchits: Bristoe, TheRealHawkeye, stophel, Ghostinthemachine, anyone else?
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