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1 WEEK LEFT: This Target Haunts Me Contest
Tell us about the one that got away, the flier that ruined your group, the zero that drifted, the shot you still see when you close your eyes. Winner will receive a free scope!
Did you measure bolt stretch? How did you quantify that the tension was indeed equal? Dry on dry threads will result in un-equal torque across fasteners.
The relationship between torque and tension is stabilized by lubricating the threads...
It reduces it, but it's still higher than steel/steel depending on the anodized surface. Lubricate threads and under the screw cap for even clamping force when using axial torque to approximate bolt stretch and joint compression
This is the first anyone has ever asked for SAI's reticle, lol! I'd much rather something like an FC-DMx. That said, it's 2025. No excuse for letting Primary Optics outshine you in illumination in the 4-figure price space.
I just know people who have run them on the same set of binos and preferred the PAS29B's ability to filter, better. Regardless, this whole shoddy roll-out wasn't it for me. My PAS29B arrives tomorrow.
It's a pretty well researched and understood relationship between friction and axial torque measurement vs compression/stretch, as well as the "slip and grip" nature of dry planar surfaces involved therein.
I am replacing my TAD with a PAS29B. Even when the TAD is fully sorted, I doubt they put in all the offsets the PAS29B gets, so I'll pay the extra ounce for those in a proven system.
The wild card is that none of these should be solid joints (Arisaka's new mount not withstanding, or the bottom bolts in LT rings), so tube compression also comes into play. That is actually what keeps screws from backing out of these joints without loctite.
The friction will eat into your compression/stretch a LOT with anodize aluminum surface. This is why when you see screws removed from ring caps that had zero lube under the screw head, the aluminum is bare/ano torn off. All that force went into THAT instead of bolt stretch and tube compression...
Why do you think Mark LaRue lubes his levers with anti-seize and uses a medical company to polish TF out of them? Why do you think Bobro uses a tensioning spring in the "foot" of the mount to constantly adjust the mount forward, as well as springs that allow movement to begin with? Why are both...