Help me to find POA/POI

[polemass]

Hi,can somebody take a look at the picture above+info and tell me how to aim using this scope/cross hair WITHOUT any "clicks" at 200,300m.This rifle is zeroed with irons and optics at 100m.I must say PPU ammo is grouping on level but milsurplus is impacting high 1-2" at 100m.Thanks-JB

[Daryll]

If you're zeroed at 100, at 200 you're going to be 6'' low, and 25''low at 300. (using Chairgun, commercial ammo data and 123 gn bullets)

Looking at your scope drawing, putting the tip of the thicker post on the target will get you round about at 200. At 300 its guesswork!

What may be more useful, would be to zero at 25, so at 100 you will be 3'' high, at 2nd zero at 200, and 14'' low at 300.

(These are using my values of 45mm sight height, so your values will vary an inch or 2 either way)

7.62x39 is a bit of a rainbow trajectory.....

HTH

[polemass]

Hm,Daryll,but at 200m target will be twice so small?So,I was thinking putting cross hair at the top will get my 6" drop around the centre?And again,300m-maybe putting thicker tip on top,will lands the bullets at the bottom???