My EDC gun is a little Kimber Micro 9. I’ve only had it for a few months but I really like this little gun. The one issue that I have is the primer strikes. This gun has yet to have a FTF of any sort. Runs like a champ. BUT when you look at the primers on the spent casings, you would swear they were light primer strikes. There is barely a dimple in some of them yet every single one has fired.
Is this an issue I should be concerned with? I kind of wonder just because it’s working now, could these become actual light strikes later on?
Would like some thoughts and opinions from those more knowledgeable with gunsmithing than myself.
All I know is that it’s one of the tiniest primer strikes I’ve ever seen. As long as it continues to function, I’m gonna leave it be. More concerned with the extractor after this last incident.
They all look like that after they come out of the Kimber. Not sure what is going on in there but the pic is very typical of every casing ejected from that gun. I’ve never seen any other gun leave a mark like that. Haven’t been overly concerned because the gun goes “BANG” every time I pull the trigger but it is definitely a weird strike.
Must be a small recess in the slide face where the firing pin comes through which causes that bump. Primer looks a bit flat from pressure, although nothing extreme. I still see a radius at the edge of the cup when I blow up the picture. Steel case ammo the primer cup is probably the softest component.
The primer dent was deeper. The primer has flowed back into the firing pin channel making it look shallower than it really is. The channel the firing pin is in is just a tad to large. I will check the brass on my micro 9 in the next day or two and see if mine does the same thing.
I would appreciate that! If that’s all it is, I won’t continue to worry about it. As I’ve said already, the gun goes bang every time there’s a bullet in the chamber and I pull the trigger so if it’s not a problem, don’t fix it!
Here is a pic of my Creedmoor brass. It has flow back into the firing pin channel.
No big deal. I could spend money on a bolt w/a smaller firing pin channel but I don’t think it is necessary.
I think all will be OK though. Those little dimples seem to be a far more common thing than I realized up until now. As long as she keeps going “BANG” when I pull the trigger, I’m not gonna futz with it.
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