Which 1886?

[treebeard]

In regards to the Providence Tool Co. No. 21 sight I had the original of that one on a Model 92 and it was excellent to use. I deeply regret selling it as I really miss that sight.

[PJ Hardtack]

On both the '86 and '92, the unthreaded portion of the screw that goes through the mag tube plug also goes into the corresponding hole in the bottom of the barrel.

I don't know if it bottoms on that hole or just to the extent of the threads on the screw when tightened up.

Has anyone every played with this crew to see if it has a bearing on accuracy?