Tall target test for Nightforce wedge

[RabbitSlayer]

I would like to verify the actual shift in vertical from my Nightforce wedge and see if it adds any wind. Im open on the best way to do this considering i just shoot in the desert. My normal target height is about 4 feet high. It should add about 100 moa. So i need to get a target about 8 or 9 feet above my normal one at 100 yards.

Maybe I could do it at 50 yards? Then i need to add 4 feet. Thats much easier to do. I am a bit concerned I won't be able to see a small error at 50 yards.

I have never done a tall target test...

 

[ronemus]

If you've already verified the accuracy of our knobs, you can dial down elevation to reduce the height of the target you need.

My wedge had the actual shift engraved and it matched exactly what I measured; Nightforce apparently rigorously tests each unit.

 

[big5ifty]

The wedge has no dials on it, so the tall target test is not applicable.

The tall target test is for for an optic with a reticle and adjustable elevation, and tells you how many actual units the point of aim shifts compared to what the dials say. It then enables you to calculate your scope correction factor which is an input on the ballistic calculator.

The wedge has no reticle and no elevation adjustment.

Tall target test your scope, the wedge is just an angled prism.

 

[RabbitSlayer]

The wedge has no dials on it, so the tall target test is not applicable.

The tall target test is for for an optic with a reticle and adjustable elevation, and tells you how many actual units the point of aim shifts compared to what the dials say. It then enables you to calculate your scope correction factor which is an input on the ballistic calculator.

The wedge has no reticle and no elevation adjustment.

Tall target test your scope, the wedge is just an angled prism.

It says to verify the actual shift and if it induces windage in the instructions. The forward rail is slightly out of level compared to the action, so im more worried about the windage Than elevation.

 

[big5ifty]

Then treat it like a normal scope, and do a box test.

Box test with it off, box test with it on. Compare results.

With the prism on, have the scope dialed to the bottom, and using the top half of the reticle for holdover, confirm you can hit the paper at 100, then do both box tests at 100. You probably need to release the zero stop so it can mechanically bottom out.

If there is an induced windage change, your square box will be a slight parallelogram, leaning either to the left or right depending on which way the windage change is.