Bringing back to life a very old thread.
This project has been shelved for over three years but this week I decided to dig up all the old drawings and give it another go. The former parts were tabled in favor of a new design that will be easier to assemble. With lots of patience (and the help of an amazing welder) I have nearly finished the barrel assembly. This thing (if I ever finish it) is going to be super heavy, primarily because it is now being built entirely from steel (with a few bits of aluminum and plastic). The section you see in the pics has 67 parts, most of which are not visible. As I mentioned before, feeder/delinker assembly is going to be a killer in terms of mocking up and cutting/milling parts.
Anyway, I might regret it but giving it another go.
Stay tuned!