Tuning for Reliability

[SIGP2101]

Originally Posted by kurusu

What puzzles me the most here is that Michael's P08 should not be a stubborn one. Mismatched p08s acting up is no surprise to me, but a matching Kriegoff should work just fine.

Why? There is no way anyone can tell if gun has all matching springs. Springs don't come numbered to the gun. It is all in the springs, four springs work together in co-junction to deliver. Even if still have all originals some of them must be tired after all those years in and out of service. Throw in non matching magazine into equation and you get pretty dis-balanced platform to trouble shoot.

[Sieger]

Originally Posted by SIGP2101

Why? There is no way anyone can tell if gun has all matching springs. Springs don't come numbered to the gun. It is all in the springs, four springs work together in co-junction to deliver. Even if still have all originals some of them must be tired after all those years in and out of service. Throw in non matching magazine into equation and you get pretty dis-balanced platform to trouble shoot.

Hi,

Agreed, but Mike has experienced this problem with several mint models P-08 he owns and over various manufacturers.

Again, it will be both interesting and challenging to discover the true source of the problem.


Sieger

[Michael Zeleny]

Originally Posted by Sieger

Again, it will be both interesting and challenging to discover the true source of the problem.

The balance of my life suggests bad luck.

To recap:

1. I doubt that I've been limp-wristing. One of my favorite carry guns is a 3" Manurhin MR73 stuffed with six 158 gr full-tilt .357 Magnum pills. I hold my nines the same way I hold that medium-frame Magnum.
2. I've tried all combinations in the Wolff tuning pack. (Correction: the recoil spring weights are 36, 38, and 40 lbs.) The pistol is like new inside. I've tried fresh MecGar mags tuned by GT and minty Haenel-Schmeisser mags. I find no indication of anything going awry, outside of shooting live ammo. I fire a single shot out of a good Luger with more speed and precision than out of any other modern firearm. It chaps my ass that I cannot follow up in kind.
3. I do well with my LP08 Persian Artillery and a 10" pencil-barreled National Match W+F P06/29. Regrettably, they are ill-suited for defensive carry in virtue of bulk and rarity. A standard W+F 06/29, and a similarly sized 1906 Portuguese Mauser, perform nearly as well, but their defensive use is limited by the selection of 7.65mm Para ammo. I'm waiting on a 6" Werle-tuned Mauser P08 in 9mm Para without getting my hopes up.

[LugerVern]

I have had some problems with some old & new P08's that ended up being poorly cut/ rough chambers.

On the old guns the chamber was sometimes too rough and the casing would drag on the way out causing a jam on the next round and the failure to pick up the next round

On new guns like the stainless ones the chamber was way too tight and using a "new" finishing reamer would correct all problems with the functioning of the gun.

Some Questions for everyone: I don't know the answers- not for sure
1) Is there a difference between the brass used in the 40's and now?
2) Could it be that the new powders create too much pressure even though within modern limits?
3)Is the bullet crimping different than used or perhaps tighter?
4) Could primers be an issue, the pressure curve inside a casing varies greatly depending on the primer and this could cause sticking of the case on the back end on a tight chamber?

When you consider that "newly" created lugers have functioning issues even the HK's then something else is going on!!

Just some things to think about

Vern

[kurusu]

Originally Posted by Michael Zeleny

The balance of my life suggests bad luck.

To recap:

1. I doubt that I've been limp-wristing. One of my favorite carry guns is a 3" Manurhin MR73 stuffed with six 158 gr full-tilt .357 Magnum pills. I hold my nines the same way I hold that medium-frame Magnum.
2. I've tried all combinations in the Wolff tuning pack. (Correction: the recoil spring weights are 36, 38, and 40 lbs.) The pistol is like new inside. I've tried fresh MecGar mags tuned by GT and minty Haenel-Schmeisser mags. I find no indication of anything going awry, outside of shooting live ammo. I fire a single shot out of a good Luger with more speed and precision than out of any other modern firearm. It chaps my ass that I cannot follow up in kind.
3. I do well with my LP08 Persian Artillery and a 10" pencil-barreled National Match W+F P06/29. Regrettably, they are ill-suited for defensive carry in virtue of bulk and rarity. A standard W+F 06/29, and a similarly sized 1906 Portuguese Mauser, perform nearly as well, but their defensive use is limited by the selection of 7.65mm Para ammo. I'm waiting on a 6" Werle-tuned Mauser P08 in 9mm Para without getting my hopes up.

If all your P08s act up with you, and considering your shooting experience.
I would say. Bad luck indeed!
I hope you manage to overcome the problems. Bear in mind that most problems with p08 pistols end up being magazine fitting related.

Just curious, Your Portuguese is a "GNR" right? If so it should be called a 1906/34.

[Sieger]

Originally Posted by kurusu

If all your P08s act up with you, and considering your shooting experience.
I would say. Bad luck indeed!
I hope you manage to overcome the problems. Bear in mind that most problems with p08 pistols end up being magazine fitting related.

Just curious, Your Portuguese is a "GNR" right? If so it should be called a 1906/34.

Hi,

This is even crazier!

Why don't you fly me out there and I bet I can get your Luger to shoot!!!


Sieger