California "Drop Test" as in drop it on the hammer?
Are CA residents allowed to own one, just not purchase one new/used?
I think it's a drop from 40 feet. Hopefully, somebody more knowledgeable will chime in.
Yes, you can own one in CA, but can't buy one from a retailer.
Sorry that I don't have all of the details about the laws there. I was actually born and raised in CA (Bakersfield) , but stopped keeping up with the gun laws there when I moved away back in the early 90s.
I remember that it was frustrating for some of my old buddies there when they saw some surplus S&W revolvers that were marked CDC (CA Dept of Corrections), and couldn't buy them.