Tom - I have 2 rifles, a pistol and a smoothbore with L&R locks and another rifle with an old Siler made from parts - they are all wonderful locks, giving very fast ignition. My fastest, as fast or faster than a Chambers delux Siler, is the L&R Dickert. I had to replace a feather spring on one which fired just as reliably and as fast as ever without it, and had to draw the temper of one frizzen. That's it.