LMT MWS question

[Pappabear]

I just put my NF scope back on my gun after a trip to NF for a tweak. After torquing the scope down, I grabbed the barrel wrench that breaks at ?? lbs. Cant remember how inch or ft pounds. But I felt like the cheap wrench that comes with didn't break, it just tightened the shit out of the screws.

Don't those little black wrenches with L handle on it supposed to break? What pound do you torque your MWS barrel in at ?

I kinda stripped the screw in process to boot. Hit me with your thoughts.

PB

[ALCOAR]

Hey brother, I don't have the new smaller styled torque wrench like the one you describe I believe, however the torque value hasn't changed since IIrc late 2004 or 2005 with regard to the torque amounts. This is true for both MRPs and MWSs. The spec is 140 inch pounds whereas in the very beginning it was 90 inch pounds.

The following pic is from my MWS manual even though it says MRP...


I have many of the older much cheaper styled t wrenches that have been set, tapped, and signed. They were notorious for going out of spec, and people never hearing the snap of the torque limiter engaging. Ask me how I know


Your lucky you got off with a little stripping of the bolt, the designed function of these specially made bolts is shear or snap at certain over amount of torque to protect the chassis. They will break way before your chassis incurs damage.

I honestly just tighten them down with a t handle now by feel. Most other long time MRP MWS owners I know do the same.

All torque wrenches that I know should indeed snap or break once they hit the assigned torque amount.

[Pappabear]

Thanks Brother, good to hear from you. Ugly snapped bolt.

PB

[CRT2]

Yes they are suppose to "break". I keep 4 bolts for just in case. Notify LMT of what happened, they may send you replacement bolts. If you need it, here is the online downloadable manual, page 25 is barrel removal. https://lmtdefense.com/media/2017/10...s-Manual-F.pdf

[LMT Shooter]

I can't remember where I read it, but I recall that the 140 in/lb spec was mainly (only?) for return to zero. Is my recollection off, or is this true?

[Pappabear]

I can't remember where I read it, but I recall that the 140 in/lb spec was mainly (only?) for return to zero. Is my recollection off, or is this true?

what do you mean for "return to zero"?