Need some mathematical help to get to 1000 yds.

G

gt40

Guest
I changed my 30mm tube scope to my 1" scope with 1/8" clicks and very fine reticule with 1/8" dot. I did this because the 30mm scope has a much thicker reticule which is not good for target shooting. I also changed from a 20 MOA rail to a 40 MOA rail because the 1" tube scope only has 275 1/8" clicks adjustment total from bottom to top and would not get me to 1,000 yds. with the 20 MOA rail.

This is what I have done so far before I go to the range where I can only shoot out to 200 yds. maximum today and the 1,000 yd. shoot is tomorrow morning. I am hoping to see how high I will hit at 200 yds so I can hopefully adjust it up on the trajectory to get me on the paper at 1,000 yds. The bullet drops 27 MOA which is 108 1/4 MOA clicks with the 30mm scope. The new scope should be 216 MOA 1/8" clicks. So I should be able to get on the paper at 1,000 yds. I hope.

I bore sighted my rifle out my back door on my neighbors outside light that was turned on. Boy you can really see it very well through the barrel. The scope was dead on at 200 yds. with the 20 MOA rail, but the scopes center is close to 2 inches from the center of the bore instead of 1.5 inches with the Vortex.

The cross hair is approximately 12 inches above the bore at 39.5 yds. with the range finder. How high do you think it will be at 100 yds. and 200 yds.

Attached is the JBM chart we did last night.

Thanks a lot,

gt40

PS: I just got the 40 MOA Picatinny rail yesterday. That's why I don't have any time left to play with it at the range and don't know where the bullets are going.
 

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Roughly about 54" high at 200yds for a 1000yd Zero. Or roughly 25-MOA up from a 200yd Zero.

Happy Shooting
Donovan Moran
 
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