I too read a lot of fiction. A pet peeve are gun related gaffes commited by just about every current best selling crime/mystery author. ex: "spare magazines for the revolver", or Jack Higgins ballyhooing the Colt .25ACP (fitted with silencer) being a wonderful tactical weapon.

For me, the best hisorical fiction ever written are the J.M.Pyne stories by Lucian Cary. Hard to believe they were features of a mainstream national magazine (Saturday Evening Post if I'm not mistaken) 2 generations ago.