Failure to go into battery every time

[DonVoigt]

Kurusu,
That is the nearest spot/point for gas to escape, for sure.

A portion of gas can escape around the gap between any style striker and the breech block; but not due to the presence of the fluting cuts - but due to the normal tolerance between the two parts.

As I wrote, some cuts could be long enough/deep enough and could function that way.

Retract the pin all the way and see if you can see the flutes; most of the time one can't, but occasionally a groove does reach that point.

My basic point is that gas relief is not the primary reason or intended purpose for the flutes-which is to provide a place for grease/oil/debris etc- and keep the striker functioning; if they relieve gas it is serendipity at work. JMHO.

[kurusu]

Originally Posted by DonVoigt

Kurusu,
That is the nearest spot/point for gas to escape, for sure.

A portion of gas can escape around the gap between any style striker and the breech block; but not due to the presence of the fluting cuts - but due to the normal tolerance between the two parts.

The basic problem with the "old fashion" firing pin is that oil( if present) will fill that gap and act as a seal.

Originally Posted by DonVoigt

As I wrote, some cuts could be long enough/deep enough and could function that way.

Retract the pin all the way and see if you can see the flutes; most of the time one can't, but occasionally a groove does reach that point.

You don't really need to see the flutes. There are to diameters in a fluted firing pin. the flute go all the way to the "narrow" portion.

Originally Posted by DonVoigt

My basic point is that gas relief is not the primary reason or intended purpose for the flutes-which is to provide a place for grease/oil/debris etc- and keep the striker functioning; if they relieve gas it is serendipity at work. JMHO.

I really do not know what was the primary reason. But I know it works.

[Sieger]

Originally Posted by kurusu

The basic problem with the "old fashion" firing pin is that oil( if present) will fill that gap and act as a seal.




You don't really need to see the flutes. There are to diameters in a fluted firing pin. the flute go all the way to the "narrow" portion.







I really do not know what was the primary reason. But I know it works.

Hi,

Don's contention is correct.

Sorry, but fluted or not, a pierced primer will, indeed, cause enough "piston effect" to damage the firing pin retainer or the grooves cut for it in the breach-block itself. This is the reason for most Luger mechanical failures.

This has been my actual, verified, experience gentlemen.


Respectfully,


Sieger

[G.T.]

Hi to all, although rare, I have had a few encounters with both over pressure, and pierced primer gas leaks with lugers, which occurred over the last 20 plus years when GT Specialties really started to ramp up luger repairs!! First the firing pin gas relief issue. I have had several pierced primers both due to excessive headspace, and/or a corroded firing pin tip. A famous pro football coach once called a ref over to his sideline during the game and said to him, "do you know what NFL stands for?" he quickly followed it up with, "not for long, for you or me you keep making calls like that!"
The same holds true with the pierced primer / gas relief... Regardless of the pin style, you have approximately 2 or 3 more round to shoot, and all is going to give up into a big pile of useless gun parts! First, the breechblock extractor supports on either side of the extractor lift, then very shortly after, the firing pin drives the retainer out the back of the breechblock, and with that, game over? Now, too stiff of a load, causes other failures, I have had broken receiver pins and also broken (in half) firing pins... plus it just beats a probably already beat luger to death... On every range trip (with different guns!) I check the primer on the first shot... it can tell you a lot, and save you a lot as well.... best to all, til.....lat'r....GT