Rifle Scopes Second Focal Plane Correction Question

[phillietimothy]

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On a SFP scope like the Sightron 8-32x56, are dialed corections the same on all powers? For instance, if I need to correct 2 MOA, would I dial the same on 32x and 16x? I'm thinking on 16x, I would adjust half. Am I correct? Thank you for your help.

Tim

 

[mattj]

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On a SFP scope like the Sightron 8-32x56, are dialed corections the same on all powers? For instance, if I need to correct 2 MOA, would I dial the same on 32x and 16x? I'm thinking on 16x, I would adjust half. Am I correct? Thank you for your help.

Tim

If you need to correct 2 moa you dial 2 moa... You just can't measure 2 moa using the reticle without using a 'calibrated' zoom setting (either the default, which you should verify, or zoom you've self-calibrated).

 

[phillietimothy]

Matt,

Thanks for responding. I am confused. If I was using a SFP mil dot scope that was correct on 20x, I understand that on 10x the sub-tensions would be doubled. If I had to make a 1 mil correction, you are saying that I would dial 1 mil regardless of power? Wouldn't 1 mil at 10x be twice as much as at 20x? I apologize for the stupid question, I just can't wrap my mind around this. What am I missing? I appreciate your assistance.

Tim

 

[kurt]

It does not matter what power your mag is set at if you need 1 mill you dial 1. Now if you are using the reticle to measure your correction you would have to use the correction factor in the reticle to give you the number to dial. So say you measure 1 mill on 10 power on a 20 power scope, times 2 would equal 2 mills you then dial 2mil regardless of mag power to hit the bulls eye

 

[phillietimothy]

Kurt,

Thank you very much. Every time I think I have it figured out, I get more confused.

Tim

 

[phillietimothy]

DFOOSKING,

"If your reticle subtends properly at 20X....meaning from dot to dot it is 1 mil.

Then at 10X your reticle is 2 mils per dot to dot."

This is exactly what I thought. Thanks for the videos. Need to study more.

Tim