I've been doing a little work here and there. Got my prototype barrels in, as unturned blanks, and set about machining one of them to the contour I want. It's totaly unrealistic for me to turn the barrels on my mill as it is a little small and it's basicly a waste of time. I just wanted to make sure the finished size was OK. I could only get 22.5" barrels with this method, but I am looking at 24" for the production rifles. Based on the weight of the barrel I have turned to size, the rifle will weigh 6 lbs..The barrels will be threaded into the monoblock.

OK, enough dialog, here are a few pics.