Interesting muzzle velocity behaviour with TiteGroup for Cowboy Action Shooting

[JimGnitecki]

jmorris: I just tested the screws on both revolvers. BOTH clock differently when the cylinder rod is inserted, which means both are bottoming out on the cylinder rod instead of via the screwhead. I am going to ask the gunsmith if he should correct that by shaving the screw TIPS just enough to ensure that it is the screwhead that bottoms out before the tip of the screw.

Jim G

 

[JimGnitecki]

jmorris: When I say that both screws clock differently with their cylinder rods installed, I DID ensure that each time I installed the cylinder rod, I WAS engaging the correct relief in the rod, not bottoming out on the rod outside a relief.

Is there any chance that Cimarron or Uberti INTENDED the screw to bottom out on the relief versus the screwhead? I would THINK no, since the turning of the cylinder would tend to both try to work the screw out AND wear the tip of the screw as well. But, as I have already said, I don't "get" why Colt or Uberti would do MANY of the things they do (Like Uberti using a wooden broomstick in a factory video to tighten the UNsecured frame onto its in-a-vice barrel, when everyone specifically warns that the frame can be distorted by doing this.)

Jim G

 

[Blue68f100]

You cannot Loctite it because you need to remove it and replace it every time you clean the firearm, and Blue Loctite would gum up the threads enough to further deteriorate the already marginal "feel" of when the cylinder pin relief is aligned with the screw.

There is a product called VibraTite that will work for you. It's design so you can make repeated adj without re-applying.

 

[JimGnitecki]

There is a product called VibraTite that will work for you. It's design so you can make repeated adj without re-applying.

VibraTite is an interesting product. I found it on Amazon after you posted. Two things bother me though. The ad on Amazon suggests that it is is only good to 165F, and a revolver chamber might get hotter than that with some extended use. And, the cost is a little high: $39 for a small tube.

Jim G

 

[Jim Watson]

I did not pay a lot for Vibratite, good thing, it would not secure the guide rod in my Nelson Conversion. Maybe it would work better on your base pin screw. $12 at Walmart.

I figure Uberti supplied the knurled screws because they knew they would loosen and you could finger tighten them at the loading table.

I was sorry to see that Belt Mountain only makes base pins for Rugers, those suckers don't move.