torque specs for screws for stocks, actions, and scopes

[rimrock]

Is there a list somewhere giving the inch pound tightness for screws for actions, scopes, and stocks?

rimrock

[awp101]

Bump!

[harry]

This link will give you idea of torque requirements:
http://www.thelenchannel.com/1torque.php
Most ring manufactures will have their requirements with the rings, BUT, I have had scopes move when using those specs. Hope this helps
WY2000

[Griff]

This link will give you idea of torque requirements:
http://www.thelenchannel.com/1torque.php
Most ring manufactures will have their requirements with the rings, BUT, I have had scopes move when using those specs. Hope this helps
WY2000

Excellent chart. Thanks.

[stretch]

I've never used a torque wrench on such things.

Rings and mounts should be tight enough that nothing moves.

After dry-fitting, I'll frequently reassemble with Loctite, then
check if things move during recoil. (Worst offender is the
adjustable scope mount on my RWS 48 air rifle. Why is that
group suddenly string verticallly?!?!)

Stock screws are tightened enough to be snug, and checked for
looseness periodically. Yes, snug can be a subjective term.

An old friend of mine has a custom 270 with a Mauser action that
he built decades ago. The stock screws were tightened up until the rifle
grouped well. Once that was established, a hole was drilled on the
edge of the screw, and another screw inserted to fix the stock screw
in that position. So, the stock screws are always tightened to the same position,
and theoretically the same torque. It's an ingenious solution, but I have my doubts
about it's accuracy in conditions of changing humidity.

-Stretch

[Washita]

Here are the values provided by Wheeler Engineering for rings & bases with their FAT driver (all values in-lb):

Base Screws= 30
Windage Screws= 30-40
Ring Screws:
Alum. = 10-15
Steel = 15-20

I've used these values and found they work well. For action screws, the best values vary from rifle to rifle, but on rimfires I've generally found 15-20 in-lb works best. On my Savage Mod. 12 VLP Varmint, I like 35-40. Note: this rifle is pillar bedded; I wouldn't go anywhere near this high on one that doesn't have pillars.

Point of info: If you lack a torque driver, finger tight on an allen wrench with the long end in the screw & a finger & thumb on the short end will be about 15 in-lb.

[stretch]

So, the stock screws are always tightened to the same position,
and theoretically the same torque. It's an ingenious solution, but I have my doubts
about it's accuracy in conditions of changing humidity.

...unless, of course, it was pillar-bedded.

Duh!!! (Thanks, Washita!)

-Stretch

[rimrock]

Thanks, guys!

rimrock