Remington 700/Vortex optic, not enough elevation.

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tahw

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Recently purchased a Remington 700 5r in 223, and first mounted up a Leupold Mark AR with the 2pc mount and dovetail rings.
Couple of range trips and this setup worked perfectly but wanted a little more magnification, so I purchased a Vortex PST 6-24.
Due to differences in the optic I needed to change the rings, but the bases remained the same, both Leupold dovetail rings mounted in the dovetail bases.
First range trip today and I cannot get enough elevation, even at 100yds I have the elevation turret maxed, and still the POI is still an inch or two low.
Any ideas what would cause this, or suggestions for a better set of rings/bases.
I would like to retain 2 pc base as the rifle has a hinged floor plate, and with shooting it left handed it make loading it difficult enough and a one piece rail I find complicates this even more.
 
Try swapping the rings front to back and vice versa may be an answer.....

Other than that, I'm not sure....it's either a ring problem or a scope problem.... The last optic worked so I don't think it would be a rifle or bases problem.(same bases Right?)

Is the PST one of the models with zero stop? If so, there any shims installed blocking the scopes internal adjustment?
 
FirearmsEnthusiast said:
20 MOA rail installed back-to-front?
Click to expand...

Its a 2 pc rail, with different screw holes for the front, rear actions so no ability for them to be swapped,
As for zero stop that would prevent me from lowering the POI, not raising it, you can see by the marks on the turret I'm at the end of the range and not hitting a stop.
 
tahw said:
Its a 2 pc rail, with different screw holes for the front, rear actions so no ability for them to be swapped,
As for zero stop that would prevent me from lowering the POI, not raising it, you can see by the marks on the turret I'm at the end of the range and not hitting a stop.
Click to expand...

If it isn't the rings, then it has to be the scope..... Vortex has a zero questions warranty.....
 
Scope needs to be mounted as close to barrel as possible. Seen it happen on muzzleloader and shotguns but not centerfire. Both times scope bell was 1/4" or more from barrel. Moving scope as close to barrel as possible without touching brought POI up 10".
 
Loosen the mount and shim the front with a very thin piece of shimstock.... If you don't have any shimstock handy, use a small piece of the sidewall of a pop our beer can and cut to fit under your mount perfectly....
 
shorttrac said:
Scope needs to be mounted as close to barrel as possible. Seen it happen on muzzleloader and shotguns but not centerfire. Both times scope bell was 1/4" or more from barrel. Moving scope as close to barrel as possible without touching brought POI up 10".
Click to expand...

Its as tight as it can go, also using guidelines set out by Leupold on the website.
Will try and shim front mount
 
If it's out that much either your scope is screwed or you should be able to see something isn't right with the rings or bases. You should not need to shim anything. I would try the scope on a different rifle and see if it's the same. Do you own another set of 30mm rings that are high enough the scope bell doesn't touch the barrel?
Having the scope mounted too high will not make you POI shift very much as suggested earlier. If it did AR's and other black rifles that have as much as 3 inche sight line over barrel bore would never hit anything. It's about alignment not height.
What guidelines are you talking about on the Leupold site? Torque specs?

Without seeing it all I can suggest is that you take everything apart and start over. Clean the top of the receiver and the bottom of your bases then install the bases with a small drop of blue locktite on the threads of each screw. Then install the lower halves of the rings and set the scope in with the turrets centered between them. Then install the top halves of the rings and level the reticle before you tighten them down.
As you go through it use a torque driver to tighten everything to the correct specs, which can be found on the package inserts that the rings and bases came with.

If that doesn't work slip your Mark AR scope into those rings (unless the Mark AR is a one inch tube) and try it out, that will tell you if it's the scope or the new rings.

I'm not a fan of two piece bases but they do work for a lot of people and they shouldn't cause problems like this.

Let's see a picture of your setup.
 
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