Hi,
The limited time I have right now for gun work is really frustrating me. I am definitely making adjustments for next year. I completed the patch box for now. I constructed the catch. latch, and lid spring. Flinchrocket posted a nice photo of the kind of catch probably used on the original Berry and I examined photos of another rifle with a similar system. I saw problems with each and also wanted to make sure I could remove the butt plate without having to remove the entire assembly with the plate. So I got to thinking "what would Dave Crisalli do?"
So I engineered this solution. I don't like whimpy patch box latches and releases. I want a solid click. I also did not want something that released when I snugged my shoulder into the stock. I assume there is a reason why few gun makers used this design and it appears Berry only used it once. So the latch spring is sturdy and I made a latch that locks solidly into the catch on the lid. The latch joins the spring with a threaded rod anchored by a nut. That way I can separate the latch from the spring to remove the butt plate. The knob on the outside of the butt plate is threaded onto the latch but also soldered in place. I can remove it if I need to to finish the gun, and then solder it back in place. The system snaps closed with a distinctive sound and I think I could hang a 20lb weight from the lid and it would not fail (I over engineered it). It releases crisply and easily when needed but is not going to open inadvertently when I shoulder the gun.
When I cut the cavity, I broke into the inclusion and knot on the inside. I had to really sharpen my mortising chisels to cut that stuff away cleanly.
Finally, I cut the lock and side plate moldings. I used one of the Berrys as a model for the rear beaver tails but am hedging on the front aprons. I cut the larger funky apron seen on the early Berry shown in Kindig. However, I think I will cut it back to the shape of the one in Hansen's book (the same one I pictured originally). It is funky but I will wait on it a bit. The other Berry of this design has no forward apron.
dave