05-17-2018, 10:19 PM
I'm building the same rifle using 4140. There are measurements for the hinge pin and for the hammer pivot pin. My parts are cut out and I'm fitting them now. I had a full sized pattern glued to the breach blocks and noticed my holes were lower than those shown on the pattern. I followed the measurements and now I will be changing the sizes and shapes of other parts to make those misplaced holes work. Making a wooden prototype is a good idea. Wish I had done so also.