??'s Torque Values

[HFV]

What is average torque when mounting a scope.
1. Base screws to action
2. (Picatinny or Wever type base) ring to base torque
3. Ring to scope screw torque (Weaver , Burris, Nightforce, Leupold)

Thank you much.

 

[jepp2]

1. Base screws to action
2. (Picatinny or Wever type base) ring to base torque
3. Ring to scope screw torque (Weaver , Burris, Nightforce, Leupold)

You don't state screw size. Here are the values Leupold "used" to print on their mounting instructions:
Max torque value (and I consider this dry, not lubed)
6-48 Base screws 22 in lbs
8-40 Base screws 28 in lbs
8-40 Ring screws 28 in lbs
STD windage screws 45 in lbs
Ringmount Keeper screws 45 in lbs
PRW Keeper screws 22 in lbs
Mark 4 1/2" Keeper screws 65 in lbs

I only torque my 6-48 base screws to 20 in lbs
I only torque my ring screws to 17.5 in lbs (Vortex has a warning label on their new scopes to now exceed 17 in lbs)

I don't use thread locker and I have never had anything loosen after thousands of rounds. But most of what I shoot is smaller calibers, although I do shoot a 7mm Mag.

I use a beam torque wrench and I torque in small steps with fasteners in excellent condition.

I'm sure others do things a lot different than I do.

 

[Bill Norris]

The Warne TW1 Torq wrench is pre set at 25 in pds It seems to be enough on any bases and rings that I normally use which is mostly Leupold. I think I read somewhere that Leupold actually recommends 28 in pds for their screws.

 

[Rodney]

Base or picatinny rail to action - 20 to 25 inch pounds
Rings to base or rail - 25 inch pounds
Rings to scope - 25 inch pounds
The size of the screws decides the torque usually. When I purchased my fat wrench, it came with a chart that gave recommended torque for various screw sizes. Some scope manufacturers have recommended torque for the ring screws as to securely hold the scope, but not damage the scope either. Hope this helps you out.

 

[PatMiles]

What the ring manufacturer recommends. They would know.

 

[Texas10]

The Warne TW1 Torq wrench is pre set at 25 in pds It seems to be enough on any bases and rings that I normally use which is mostly Leupold. I think I read somewhere that Leupold actually recommends 28 ft pds for their screws.

Are you sure you meant to write 28 ft lbs?

 

[Bill Norris]

Are you sure you meant to write 28 ft lbs?

WOW My bad. Sorry. Should be in pds. Corrected Thanks.

 

[Rsadams]

+1 on checking with the manufacturer , scope rings and bases have torque values all over the place these days... Some are way higher than others..... Once you find out what they are use a little purple loctight so you can easily remove screws without heating them.... I have been using the purple for awhile with no problems....

 

[skeeljc]

Vortex specifications are:

Ring to PT rail: 30 in-lbs (No Loctite)
Ring scope screws: 18 in-lbs (No Loctite)

6-32 receiver screws should be o.k at 25 in-lbs.
I only use Loctite (red) on the receiver screws.

I don't lap Vortex rings installed on a one piece PT rail.

 

[HFV]

His rings are Weaver Tactical w/6 screws each ring.. I called Weaver and tech said he didn't know ,, and would have to check (hold on) He never came back to me (2 calls). The base is picatinny rail supplied by Jerry Stiller, they came w/action.
The horizontal screw that hods rings on,,, any torque value on that?
Thanks guys/gals

 

[HFV]

?Sorry skeeljc,, I overlooked your ring to PT rail. Thanks a gain

 

[Ccrider]

His rings are Weaver Tactical w/6 screws each ring.. I called Weaver and tech said he didn't know ,, and would have to check (hold on) He never came back to me (2 calls). The base is picatinny rail supplied by Jerry Stiller, they came w/action.
The horizontal screw that hods rings on,,, any torque value on that?
Thanks guys/gals

http://www.weaveroptics.com/resources/ring_charts/weaver_torque_specs.pdf

 

[HFV]

Thanks Ccrider,, that's what he was looking for