As I posted below I have completed a 70-80% receiver blank by century, I did this build by hand tools, these included a dremel, drill (cord), series of files-flat and round fine to bastard, levels, taps, cutoff wheels(stock up), grining stones, heavy vise. no milling machines no lathes or drill press. blueprints and downloaded posts by others from roderus
I will post the pictures in a few days, I have not cut the charging handle slot because I may relocate the charging handle.
this build should fire and feed fine. I am going to the range this week with a sub-caliber device 32acp in 308 adapter to fire function test. then the following week weak reloads very weak reloads
more to come