I just picked up a 340pd and was doing some dry firing, trying to get a feel for the trigger (it really stacks a lot btw), and I happened to point at a mirror in a dark room. When I pulled the trigger, I noticed a what looked like sparks in the barrel. Sure enough, after double checking that it was empty, I broke all the rules and looked down the barrel as I pulled the trigger, and there were sparks everytime I pulled the trigger. They were coming from the firing pin hole. This can't be normal can it? Please, don't try this at home, unless you are absolutely sure the gun is unloaded.