>>How can banning the manufacture of high capacity weapons for all but military or civillian use possibly hurt?

Where are these weapons made again? Of the really nasty ones I saw in the US, some were lovingly maintained relics from Viet Nam (but still capable of generating walls of bullets) or manufactured by the Czechs.

FWIW, as a young idealistic fellow doing a stint in Africa I got to inspect an air-powered weapon mounted on a flatbed truck with a funnel into which you poured old bolts, rusty washers, whatever you had. This thing then spewed out a cone of flying metal that could cut through car skins and would put serious hurt on any humans foolish enough to remain within about 50 yards. Welded out of scrap metal. They made these because they couldn't source the manufactured weapons they wanted. Not sure you want to see that starting in the US.