Scope Adjustment

[bench]

Ok I have a long question and I hope I can explain it correctly.

I glass bedded my new rifle stock and mounted my scope (leupold VX3 4.5-14x40 30mm tube with m1 turrets)
When I went to sight in left to right was perfect.
But up and down it shot way high about 15 inches at 75 yards but was able to zero the gun on target.

I would like to center my adjustment of the scope.
Would you shim one of the scope mounts or add to the glass bedding???
I have no idea which to shim front or back mount I cannot get it straight in my head which way to move it.

I have 5.5 revolutions on the up and only 2.5 revolutions down.
Help before I pull my hair out.
Thanks
Bench

 

[jpretle]

More information needed.
Was your reticle centered to begin w/? Do you have a "0" MOA rail or one w/ built in MOA?
That is where I would start.

 

[FeMan]

You could try the Burris Signature Zee rings if they will fit your scope tube and bases. If you get the off-set kit, you can move your POI a LOT by changing the inserts. 20 MOA would be easy to change.

 

[bench]

More info.
Just bought this rifle for coyote hunting Model 70 winchester.
Took off original stock and glass bedded new wood laminated stock.
Mounts are Leupold standard 30mm high rings-0-moa
Bench

 

[fdshuster]

Bench: A common problem that is easily corrected by using the Burris Signature rings with the off-set inserts. In addition to the Zee rings (made to fit Weaver & Picatinney type bases), they are also available to fit your Leupold turn-in base(s).

Use them and there is no need to shim anything or add glass to the bedding. You will also have the advantage of no ring marks on the scope tube.

To correct your vertical problem: Think of what a 20, 30 or 40 moa base mount does for vertical. It raises the point of impact by lowering the front of the scope, and raising the rear of the scope. Do that with the .010" off-set inserts that are included with the Signatures and you can have .010" or .020" of correction by using one or two pairs of inserts.

Since your problem is one of being too high, you will need to raise the front of the scope, and/or lower the rear. Whichever way you need to move the bullets point of impact, move the front of the scope in the opposite direction. Same applies to windage, but for you, you would use the opposing windage adjustment screws that are built into the Leupold base. But whatever you do, be advised not to use the scope to turn the front male dovetail into the female dovetail of the base.

Like you, I also want to keep my scope adjustments as close to being centered as possible.

 

[bench]

fdshuster.

Thanks thats the info I needed.
Bench

 

[Albany Mountain]

Why would you want your scope centered at close range? It sounds like you are almost where you need to be. Lots of elevation to go for the longer ranges.

 

[Lesloan]

When you say you have 5.5 revolutions up and 2.5 down, do you mean that's how much you've used, or how much you have left? If the former, then you'll want to put the +.010" insert in the bottom back ring and the -.010" insert in top, the other way 'round if you want to drop POI. If that doesn't get you all the external adjustment you want, put the -.010" insert in the bottom of the front ring and the +.010" insert in the top. If you use only one of the 2 sets of inserts, put the +/- 0 inserts in the other ring.

Burris Signature Zee rings fit Weaver bases. The 30mm rings come with 2 sets of "0" inserts and 2 sets of +/- .010". The optional insert kit sold separately for 1" scope tubes is not made for 30mm scopes. .010" insert thickness will give you about 10 MOA of elevation, depending upon ring spacing, so you can get about 20 MOA total, either up or down.

Hope this helps.

 

['Freak]

Burris does the Signature series rings in a 30mm “Universal” for mounting on a base the same as a Leupold Standard using their turn-in dovetail front and windage rear Standard rings. I’m using a Signature series something on everything now that isn’t QRW. The 30mm rings come with zero and +/- 10 moa insert sets.
http://www.burrisoptics.com/sigrings.html

 

[Lesloan]

Burris does the Signature series rings in a 30mm “Universal” for mounting on a base the same as a Leupold Standard using their turn-in dovetail front and windage rear Standard rings. I’m using a Signature series something on everything now that isn’t QRW. The 30mm rings come with zero and +/- 10 moa insert sets.
http://www.burrisoptics.com/sigrings.html

Yes...I have a set of those on an Anschutz 1710. But the Sig. Zee rings are for Weaver & Picatinny bases only. That's what "Zee" signifies.

 

['Freak]

The “Zee” rings do go on a Weaver base with the same significance that “Universal” rings go on a Standard base. “Signature” in the depiction indicates their series of rings utilizing self-aligning inserts, regular or offset.

Quote fresh off the Burris website:
“Signature Rings are available in 1" and 30mm sizes and can be used with standard, dovetail, double-dovetail, and Weaver-style bases.” http://www.burrisoptics.com/sigrings.html