Scope is sliding in Vortex rings? Garbage rings??

[fnlights]

Does anyone know what is causing my scope to slide towards to recoil pad of the gun? You can see the shift marks where the scope was originally mounted in the attached pictures.

This is the second time that these Vortex Precision Match Grade rings have done this to me. They are loctited and torqued to Vortex specs. Is the recoil on my .300WM too much for these rings (I wouldn't think so)? It's about impossible to develop a load when a scope is moving lol.

At this point, I'm seriously considering sidelining these rings and buying myself a set of Hawkins.

How much could this slight shift change POI?

 

[brant89]

I run Vortex PMR rings almost exclusively (including on my 300WM) and have never had a scope move, even after dropping a rifle. From what I understand they are manufactured by Seekins and Seekins rings have a pretty great track record. I think you either got a bad set of rings or you have something else going on.

 

[fnlights]

I would agree, have never had a problem with anything Vortex related until this point. I don't know what else could be going on besides a bad set of rings lol. When I mounted the scope I made sure that everything was torqued properly and used the wheeler kit to make sure everything aligned perfectly (which it did even without lapping the rings)

 

[Blackdog317]

Scope tube out of spec? (smaller diameter) Or maybe the torque wrench is off?

 

[fnlights]

Scope tube out of spec? (smaller diameter) Or maybe the torque wrench is off?

I wouldn't think a Nightforce would be that far out of spec, but I guess it's a possibility.

Is a brand new Wheeler torque wrench, I'll hit the screws with my older one and see - so again, I wouldn't think that would be the issue, but its worth a shot for sure!

 

[Rick Richard]

If your going to keep these, then BED the scope….problem solved. Unless you have the wrong diameter rings for the scope diameter.

 

[fnlights]

If your going to keep these, then BED the scope….problem solved. Unless you have the wrong diameter rings for the scope diameter.

Just double checked and the diameter is correct.

Is bedding the scope permanent? What happens if you ever want to swap rings or something??

 

[Rick Richard]

Just double checked and the diameter is correct.

Is bedding the scope permanent? What happens if you ever want to swap rings or something??

No it is not permanent. Place release agent on scope tube. Check out some YouTube videos on how to perform.

 

[fnlights]

No it is not permanent. Place release agent on scope tube. Check out some YouTube videos on how to perform.

Going to watch some YouTube videos on it now.

I've never had to bed rings before! Especially ones that are suppose to be this good!

What rings do you run and do you bed all of them?

 

[brant89]

IMHO I think you should just return the rings for a new set. My guess is that you just got a lemon. I've never heard anything bad about the Vortex PMR rings until today. I have no doubt Vortex will swap them out for you.

 

[Taylorbok]

I'd say the rings gotta be bad, they shouldn't require bedding.

 

[fnlights]

I emailed Vortex and will see what they say.

I have an extra set of Hawkins rings laying around for my 30N build that I might throw on for now.

 

[Harry Knutz]

Did you happen to Lap these rings?

 

[fnlights]

Did you happen to Lap these rings?

I did not