Nikon Black Mounts Garbage

[Sinasta]

Anyone else own these Nikon Black unimounts? My understanding is they're made by Warne. I torqued the ring caps to 25"lbs and the scope moves during recoil. It moved and I didnt notice and actually damaged the power ring on my scope.

I kept cranking up the torque value until 40" lbs and I was concerned of crushing the scope tube and it still moved during recoil. This is on a 6.5 creedmoor on a semi so the recoil is pretty soft.

 

[7ECA]

That seems like a lot of torque - what does Nikon recommend?

On the Vortex rings I have, the torque values are engraved on the rings. 30in/lbs base to rail, and 18in/lbs on the rings.

 

[Sinasta]

That seems like a lot of torque - what does Nikon recommend?

On the Vortex rings I have, the torque values are engraved on the rings. 30in/lbs base to rail, and 18in/lbs on the rings.

Warne torque spec is 25" lbs.

Originally torqued down to 18" and it moved. Thats what I went on the Warne website to check and it said 25". I did 25 and it still moved. Took the caps off completely to redo at 28". Still moved. 35" still moved, then said #### it and went 40" and still moved.

 

[Why not?]

Lap the lower half of the ring set, and the scope will be secured properly at proper lower torque.

BTDT numbers of times, and with far greater recoil than your Creedmoor produces.
Ted

 

[jm181920]

I use warne rings and they are the best. I dropped my rifle from side by side and it did not change the point of impact

 

[factionrr]

I have a Nikon Black on a .308 bolt gun. Ring caps tightened to Vortex specs of 18 inch pounds. Over 300 rounds and havent had any of your issues. I also have Warne rings, same deal, always hold zero.

 

[CranePete]

Is it possible that your torque wrench/driver is out of spec? Access to another for comparative purposes? I use a Wheeler torque driver, and have checked it against my Snap On torque wrench. It’s pretty close. Just thinking out loud...

 

[Sinasta]

Is it possible that your torque wrench/driver is out of spec? Access to another for comparative purposes? I use a Wheeler torque driver, and have checked it against my Snap On torque wrench. It’s pretty close. Just thinking out loud...

It is a wheeler fat wrench. But I've used it on many other brand of rings with no issues.

 

[cody c]

Double sided sticky tape on the ring caps

 

[Sinasta]

I bought some 1000 grit sandpaper and placed it on a glass top and started sanding the finish down. The machining was definitely uneven. The two inner rings werent even touching the sandpaper.

 

[Longstud]

When you tighten the rings is there any gap between the top and bottom sections where the screws are? If there is then your torque wrench is fubarred. Not that they necessarily should touch, but if there is a gap and your scopes still moving then those screws aren't 25inch pounds.

 

[Sinasta]

When you tighten the rings is there any gap between the top and bottom sections where the screws are? If there is then your torque wrench is fubarred. Not that they necessarily should touch, but if there is a gap and your scopes still moving then those screws aren't 25inch pounds.

There is no gap and I just used the torque wrench to mount a scope on my friends rifle with quality MDT rings with no issues.

 

[Longstud]

Well ur mount is defective. That is the only possible explanation!