magicchip said:
never an issue. Clean behind your extractor.
I will second that. BIG TIME. BIIIIIIG TIME. I am sitting here after launching a hundred rounds last night through my Kimber Target II SS. It was failing to extract FTEx (vs. FTEj) every third round. I clean my guns after every shoot. And I clean them well.
Hmmm. Kimber does NOT tell you how to break down the firing pin assembly, which contains the DREADED external extractor! Therefore you must not clean it. WRONG!
Be absolutely sure that you are taking the gun down sufficiently to clean the firing pin assembly and extractor (talking 1911's here... but am sure same applies to most if not all). I got some advice from some knowledgeable fellows on one of the M1911 forums and did just that.
I was ready to change springs, buy 'bullet proof' extractors, tune my extractor, and so on. Not needed it would seem. All I had to do was break the gun down a little further (beyond what the manual shows) and clean it thoroughly with crud cleaner and a good hard bristle brush and VOILA!!! No more FTEx.
I ran everything from Wulf reloads to Winchester white box ammo through it last night and it ate it all and never burped once.
There is much to be said for "Cleanliness is next to godliness" in this regard. So before you start running off to get different ammo, or any of these other drastic measures, I suggest taking the most drastic measure of all.... learn how to disassemble your firearm and clean it. Make sure that the extractor and associated assembly is squeeeeeeky clean and oiled properly.
99% your trouble will disappear.
Try it. You'll like it. I did.
P.S. That was the most satisfying hundred rounds of 9mm I have ever fired in my life! Walked out and drove home with a big grin on my face.
P.P.S. One other thing... make sure that your firing pin is operating properly as well. We had a firing pin recently that was hitting the primer so hard that it was actually punching it... resulting in a less than satisfactory launch due to reduced pressure. Fortunately we had no 'daffy duck barrel' results... but what tipped us off was the volume of smoke at and around the muzzle, as well as some off the paper target hits. Make sure that your firing pin spring is okay and that your firing pin face has not fractured to give you a metal punch instead of a firing pin. In our case, we are going to be replacing the springs I think.