I have a form that I made to hammer the back part of the butt plate into so that I get approximately the same curvature each time I make the part. I spend a lot of time fitting the two parts together to get the final fit I am looking for. I made a dummy stock butt cut with the pattern I will use to cut my stock blank, and use the dummy to assemble the plate. I work with the two parts of the butt plate until I can push them against the dummy butt stock and have a reasonable fit. I drill the two parts for the screws that will be used to mount it to the stock blank. Next, I mount the two parts of the butt plate to the dummy butt using the mounting screws and small finishing nails along the sides of the parts to position the two parts correctly. I drill and a hole through the two parts of the butt plate next to the heal of the butt plate assembly, and install a small pin and hammer the ends of the pin to swedge the two parts tight against each other. I then remove the butt plate assembly from the dummy butt. I place the butt plate assembly in a vice or a fixture to hold it while the two parts are brazed together at the joint at the heal. The process of making the butt plate is a bit slow, but insures the relationship of the parts are correct, and saves time when it is inlet into the stock blank.
Roger Sells