Greetings Cliff Mccan,
You have taken a giant step forward in maximizing the accuracy potential of your Underhammer rifle. You are probably already seeing a major impovement in smaller and more consistent groups.
At some point in time, you might want to consider an improvement over your current rear sight setup.
Eventually the barrel and receiver, if you shoot enough,will begin to loosen. This is common among all underhammer designs that have a seperate action and barrel design. Even custom underhammer designs such as my Kenneth Briesen barrel and action have this problem.
The best solution is to use a sight barrel that is screwed to the barrel, with the sight mounted on the sight bar. In this way, both front and rear sight are mounted on the barrel, and if the barrelled/action should loosen, there will be no lose in sight alignment/accuracy.
Most of these rear sight bars are custom made items, but are actually simple in design. If you will look through some of Davy's post, you will find some photos of my bench rifle, and there you can see the sight bar minus the sight.
This arrangement works well on just about any type of rifle, encluding my Hawken Rifles.
If you are shooting a rifle like the T-C with a tang or similar sight mounted on the the tang, the exact same problem exist.
Much of these loose fit between the hook breech and and tang can be eliminated with the simple installation of two machine screws on the opposingsie flats of the tang.
Again, Davy has some photos of where these screws are installed.
If some time in the future your underhammer rifle begins to fall off in accuracy, you might want to check the fit of the barrel and action.
In no way is this information offered as negative criticism of your current sight arrangement.
As with all of my post, the readers have the right to accept or reject, use or not use my information and/or opinions.
Best regards and good shooting,
John L. Hinnant
If you are not an NRA Member, why not? I am carrying your load.
