hello jOe,
the propriety action was a basic grade, on offer for sale alongside several other different quality and specification grades of screw grip.i am surprised you are unaware of that or have chosen to ignore the fact.
of course i am fully aware that w&s screwgrip guns are a long way from best guns and whilst nowhere near the quality of hand made top tier bests,most people agree they are pretty good on reliability and looks, both in boxlock and sidelock variants.