Elevation and Turrets

[Arrr Emm]

Hey all

I have searched but not found the answer that I exactly need….

I have a 20MOA ADM mount and a Vortex 6-24x50 (new optic on the way). I zeroed and chronoed fine at 100yds with .308, 168gr, fed gold. However, I have only 9MOA of upwards elevation left. What exactly causes this and how to fix? Am I an idiot (wife says yes)? I am a long time competitive shooter but new to LR.

Thanks

 

[Rob01]

If you are zeroed at 100 and only have 9 moa of up then that's just what you have. Lower amounts of internal elevation and sometime using a lot of windage and pushing the erector one way or the other can limit it at times. Most that have issues have it getting zeroed and hitting zero stops on the way down but not your issue. Just use it like it is until that new scope comes in. If an issue then then maybe have to look at the rifle itself.

 

[Arrr Emm]

Thanks Rob. That explains it perfectly

 

[Gohring65]

Depending on the action being used, sometimes you have to bed the rear of the base. Remove rear base screws and tighten the front screws and look for a gap at the rear base screw area. If there is a gap, bed it back there.

 

[Arrr Emm]

Depending on the action being used, sometimes you have to bed the rear of the base. Remove rear base screws and tighten the front screws and look for a gap at the rear base screw area. If there is a gap, bed it back there.

Ok. That makes sense too. Thanks. It’s a single piece mount.

 

[Scopeye]

Is the 20moa base mounted in the correct orientation? Could be counterproductive to what you want if it's flipped around and mounted the wrong way.

Burris Signature XTR rings will fix any issue you have regardless.

 

[Arrr Emm]

Is the 20moa base mounted in the correct orientation? Could be counterproductive to what you want if it's flipped around and mounted the wrong way.

Burris Signature XTR rings will fix any issue you have regardless.

Awww. That’s a good point. It may be. I will check.

 

[Chris1972]

Agree with scopeye, base may be backwards.

 

[Rob01]

Kind of difficult to mount a base backwards but easier on some rifles depending on receiver. Don't know what the rifle is so it's possible.

 

[Arrr Emm]

It’s a DD .308 with an ADM QD mount. I do not think it is backwards. Could I shift my zero from 100yds and achieve more elevation??

 

[Rob01]

Yeah with a mount like that it would be tough to mount backwards. Post a pic of your set up.

No shifting zero won't gain you anything worth while.

 

[Arrr Emm]

Pics attached