NO WONDER IT STARTED TO HAVE FAILURES TO FIRE

YEP , A FRIEND OF MINE STARTED TOO GET FAILURE TO FIRE ON HIS MARVEL. HERE'S A PHOTO OF THE CULPRIT. IT'S OVER 10YRS OLD . WHO KNOWS HOW MANY ROUNDS THRU IT. A QUICK DRESS UP WITH A STONE AND WAS BACK TO NORMAL.

I would have thought it better hardened than that.

I think at that point there is a very fine line between being so hard that it chips or soft enough to deform from impact.  I also think that a cycle count would be necessary to declare the part a failure as opposed to just normal wear.

CYCLE COUNT? HOW ABOUT SEVERAL CASES. 10 INDOOR AND OUTDOOR SEASONS.

SOMETIMES WE DON'T EVEN REALIZE HOW MUCH WE'VE USED THESE THINGS.

STEVE KNOWS AND UNDERSTANDS METAL FATIGUE BETTER THAN MOST PEOPLE I KNOW. JP

Surprised it lasted that long. I have broken two in mine with less than a case threw it. I do dryfire significantly more than livefire though.

If you haven't had some parts break your not using it enough.

Weber1b,

Yes, there are bits of my body that can attest to that fact!

NukeMMC wrote:I would have thought it better hardened than that.

Picture indicates that this firing pin went through a lot of dry firing.  So if it was hardened more (i.e. made out for S7) good chance there would be a ditch on the face of the slide.  Not much hardening is necessary for making dent on brass.  Steel on steel is different matter.

AP

If the firing pin nose is dented through dry firing, I wonder what the breech on the barrel looks like. Probably not better.

Slamfire wrote:If the firing pin nose is dented through dry firing, I wonder what the breech on the barrel looks like. Probably not better.

 
SORRY, BUT NO. THE BREACH FACE IS PERFECT. THIS WAS NOT CAUSED BY DRY FIRING.JP