As the project progresses I’ll be modifying the mount so I can lock the adjustments into place. This simply was super glued to the part of the threaded boss extending out side of the mount. I reused a section of the tube with the markings. The knobs are supplied are just too long. It was mounted in the lathe and the ends squared up. This piece is quite hard but a new fine tooth hack-saw made quick work of it. In the above picture, the fourth piece from the right is the threaded boss made reference to above. The threaded insert that I removed from the body of the caliper was pressed into the mount. The hole was just slightly undersized for the threaded boss. I took a 1 inch thick block of aluminum and milled out the rough mount, drilled holes for the adjusters and mounted the windage adjuster. I ordered two.Īs soon as they arrived I took them completely apart, removed the internals and cut the barrel off as needed. This will give great repeatability and long service life.Ī quick search showed Amazon had a set for under $10. The threaded shaft will be hardened and the threaded boss they are threaded into will also be hardened. The best source for this was a cheap set of calipers. The first issue was to source very fine, accurate thread to use for the windage and elevation adjustment. So as you are trying to set elevation, the scope is actually moving up and down as the high and low side of the adjuster is moving the scope. Extremely frustrating! The problem with the rear adjusters for the Shory Tube Malcolm, is the poor quality threads and the tips of the threaded adjusters are not perfectly perpendicular to the threads. The Malcolm scope has a similar set up for the short tube scopes.īut the Long Tube scope on the Sharps rifle is a completely different affair. There is a spring loaded plunger at the 7 o’clock position that hold the scope firmly up against the two adjusters. There are two threaded adjusters that simply move the scope tube up and down and left to right.
The scope itself has no internal adjustments like a modern rifle scope. Unertl type mounts are “external adjusting”. But at over $350, it was just to rich for my pocketbook. There are a couple of folk that advertise on the internet that are making a version of the Unertl mounts.
I attempted to buy a set of Unertl mounts but they are difficult to find and very expensive. The threads on the adjustments are very rough and simply not accurate enough for precision work.
Zero repeatability and even simply “sighting-in” is terribly frustrating. Both scopes were ordered through Īlthough the optics on these two scopes are superb, the rear mounts are really pretty poor. I ordered two of the reproduction William Malcolm 3/4″ scopes that are imported through Leatherwood. As you can read in another article on this web site, I recently became involved in late 1800 rifles and the period correct scopes to go with them.
0 kommentar(er)
