I have put about 400 rounds thru it but i get one or two light primer strikes out of every 50 have tryed three difference kinds of ammo . i clean it after every trip to range . last night thanks to a great sticky on here of how to take apart i cleaned striker it did have a lot of i guess packing grease i cleaned it good and lighty oiled it took it to range and still had light strikes should i try to get another striker spring or try something eles thanks