I can tell you his much, in my area, thugs are even encouraging gang members to buy revolvers. The reason you don't leave shell casings behind or evidence. The police have been recovering more revolvers with large calibers more so now then they ever did. Thanks to tv shows like CSI and such to make LE jobs more difficult to solve crimes due to the stuff shown on evidence gathering. Granted we don't spot a grain of broken glass across the room from the hallway of an apartment but you get my drift. So o I think revolvers are dead? No sir they are not. If anything I think it's just as popular as it always was.