MOUNTING MARVEL UNITS

Is there a specific torque setting for the mounting screw?

Just snug enough that it does not loosen while shooting.  
Yea, that even sounds lame to me but thats the way I've 
always done it.  Nothing can be gained by over tightening 
it.  It has worked for me for the last 10+ years and many
 rounds down range.

Good health and good shooting.
Dave C.

I think the spec is in german:  Guttentiet

So that would be slightly less than over tight:bom:

I have heard of them coming loose in a match but have not experienced this. I just gently snug it with the wrench that came with it.

Two words: blue Loctite.

I have had it come loose during a practice session.  I've adding checking it as part of my pre-match routine.

+1 on blue Loctite idea

I've never used Loctite on mine, and never had it come loose on its own.  Maybe your torque wrench calibration for "gutenteit" is off a little.

Rob Kovach wrote:I've never used Loctite on mine, and never had it come loose on its own.  Maybe your torque wrench calibration for "gutenteit" is off a little.

Yours won't ever get loose until you are shooting that refire in the rapid fire match at Camp Perry.

At camp perry, the gun comes loose, the scope comes loose, the battery goes dead as the sun comes out, and all of your ammo got wet because of flooding in the huts.

If you round the end of the rod and relieve the threads a bit on the side it will be better.  The radius point of contact will be uniform and square on the stop pin.  I have never had one come loose with this and the gutenteit method.