Rifle Scopes Erek Knob question (not related to zero stop)

[5RWill]

This could end up being a seriously dumb question, but according to the measurements on my EREK knob on my SN-3 turning counter clockwise should result in an increase in elevation. Well this is not so when adjusting for elevation. When i turn the knob say from 0-.5mils the reticle moves down .5 mils. Its also the same with windage. I move .5mils left on the knob the reticle moves .5 right. I'm sorry if this sounds incredibly stupid, mabe i'm missing something or interpreting it wrong? Is this right?

 

[Toddcal13]

Re: Erek Knob question (not related to zero stop)

Both of mine are the same. Reticle down impact up.

 

[bth87]

Re: Erek Knob question (not related to zero stop)

+1 remember you are trying to raise the bore therefore lowering the cross hairs forces the bore axis to be moved upwards to maintain the cross hairs on the target. Just look at how the Horus or Premier gen 2 xr works. the lower points on the christmas tree are used for longer distance shooting.

 

[5RWill]

Re: Erek Knob question (not related to zero stop)

So everything is fine and i'm confusing myself i take it.

 

[Swan]

Re: Erek Knob question (not related to zero stop)

everything is fine.

 

[5RWill]

Re: Erek Knob question (not related to zero stop)

So when in the field i should just follow the measurement on the Erek knob? In theory if i need 8 mils of elevation, and i go from my zero to 8 on the erek knob which would be counter clockwise. Which is moving the reticle down when i look in the boresight. It's actually moving it up?

 

[Swan]

Re: Erek Knob question (not related to zero stop)

The bore is moving up. Trust the number (as long as it tracks properly). If your dope or ballistic calculator says 8 mil to 900yds or whatever, just turn that pretty fat knob to the 8, and blast away.

Don't over-think this.

 

[glock24]

Re: Erek Knob question (not related to zero stop)

You're confusing yourself. I'll make my attempt at an explanation;

<span style="font-weight: bold">Fact #1</span> - when shooting longer distances than the rifle's zero range, the rifle's barrel must be pointed higher (up) to allow for enough bullet drop to hit the longer range target.

<span style="font-weight: bold">Fact #2</span> - When you dial "up" on ANY scope, the reticle does indeed move down. You have already confirmed this visually.


Now, read the next part slowly and visualize each step;

- Imagine your scope's cross-hair on your longer range target while the EREK knob is at 0.0 mils.

- When you then dial 8.0 mils, (for example) you will indeed see the reticle move down. (see fact #2)

- OKAY, so now instead of your cross-hair being positioned on your longer range target, the cross-hair is now pointing in the dirt.

- What must you do to the rifle itself to get that downward pointing cross-hair back up and onto your longer range target?

- What's that you say? You have to tilt the rifle back, which essentially points the barrel up in the air? And why would we want the barrel pointed up in the air? (see fact #1)

<span style="font-style: italic">Oh, now I get it . . .</span>

 

[5RWill]

Re: Erek Knob question (not related to zero stop)

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: glock24</div><div class="ubbcode-body">You're confusing yourself. I'll make my attempt at an explanation;

<span style="font-weight: bold">Fact #1</span> - when shooting longer distances than the rifle's zero range, the rifle's barrel must be pointed higher (up) to allow for enough bullet drop to hit the longer range target.

<span style="font-weight: bold">Fact #2</span> - When you dial "up" on ANY scope, the reticle does indeed move down. You have already confirmed this visually.


Now, read the next part slowly and visualize each step;

- Imagine your scope's cross-hair on your longer range target while the EREK knob is at 0.0 mils.

- When you then dial 8.0 mils, (for example) you will indeed see the reticle move down. (see fact #2)

- OKAY, so now instead of your cross-hair being positioned on your longer range target, the cross-hair is now pointing in the dirt.

- What must you do to the rifle itself to get that downward pointing cross-hair back up and onto your longer range target?

- What's that you say? You have to tilt the rifle back, which essentially points the barrel up in the air? And why would we want the barrel pointed up in the air? (see fact #1)

<span style="font-style: italic">Oh, now I get it . . .</span>

</div></div>

Oh i see now the elevation is to compensate for holding over in a sense. Thanks for help. I've had this scope for about 2 years, the reason this is coming up so late is i've forgotten some of my knowledge about shooting, since i haven't done so in a while, and I'm just now getting back into it. Feel like i'm starting out for the first time again. Had to regain my trigger pull and everything. Again thanks for all the help much appreciated.

 

[palma]

Re: Erek Knob question (not related to zero stop)

Another way to think about it - if you need to add elevation, hold over the correct amount and turn the knob for elevation (which lowers the reticle) until the crosshair is on target.

 

[Guest]

Re: Erek Knob question (not related to zero stop)

Adjusting a scope is the same as adjusting the iron front site, of any weapon.

In days of old everything was done with either a file or hammer.