Feed jam bullet pointing above chamber

DHass · 07-28-2022, 07:11 PM

What is a cause that i a non-smith can check?
Ejector / spring?

G.T. · 07-28-2022, 08:46 PM

Are you still having that issue? If so, let me take it to the range, trouble shoot, and allivate the problem for you, no charge. It is not opening the breechblock back enough to get fuly behind the cartridge. The PPU ammo should have addressed that? Let me know as we are not done until your Luger is running correctly... Best, til....lat'r.....GT
BTW, although i don't think it is the problem, the tight fork might be causing a dynamic drag between breechblock and receiver... We can correct... best, til.....lat'r....GT....

gunbugs · 07-28-2022, 11:46 PM

"limp wristing" could be a contributing factor.

rhuff · 07-29-2022, 02:53 PM

Perhaps your recoil spring is too strong, but give the gun to GT and he will get it sorted out so that it runs reliably.

Vlim · 07-30-2022, 06:53 AM

Also check the magazine. Post war Mauser magazines are not very good. If a Mec Gar doesn't feed well, it's not the magazine.

Dwight Gruber · 07-31-2022, 04:02 PM

What ammunition are you using? This is problem commonly associated with using ammunition with a too-short overall cartridge length. Modern SAAMI specs include a minimum oal for 9x19 parabellum which is as much as 2mm shorter than the original DWM minimum specification.

--Dwight

Doubs · 07-31-2022, 07:03 PM

Quote:

Originally Posted by Dwight Gruber

What ammunition are you using? This is problem commonly associated with using ammunition with a too-short overall cartridge length. Modern SAAMI specs include a minimum oal for 9x19 parabellum which is as much as 2mm shorter than the original DWM minimum specification. --Dwight

That is an excellent point. While SAAMI concerns itself with specs that keep the cartridge safe for use in firearms chambered for it, they are not concerned about reliable mechanical functioning of any specific firearm. SAAMI 9mm Luger cartridge specs for OAL are from 1.000" ~ 1.169".

The first issue 9mm Luger cartridge used a truncated cone bullet of 123 grains and an OAL of 29.2mm or 1.150". That changed in 1916 to the round nose bullet profile and I do not know what OAL they used.

I reload and any 9mm cartridge I put together must function in my Lugers. I use three different bullets at the moment. I load a 115 grain TC bullet to 1.100" OAL, a 115 grain RN to 1.155" OAL and a 124 grain HP to 1.150" OAL. Some 9mm pistols I have will not function with the TC load as the chambers are not cut with a long enough lead and they won't fully seat. The bullet ogive jams into the lands. The picture below is my TC load.

DHass · 08-01-2022, 09:47 PM

Thanks to all.

Everything is fine now. Both factory mags are working now.
It was my stupidity.
I was limp wristing unbraced manually working the action andnot clearing the mag.

Kiwi · 08-02-2022, 01:55 PM

Oh!, I met the enemy, and it was me

Glad resolved

gunbugs · 08-02-2022, 06:13 PM

I win!

07-28-2022, 07:11 PM	#1
DHass New User Join Date: Nov 2011 Location: Phoenix AZ Posts: 4 Thanks: 0 Thanked 12 Times in 2 Posts	Feed jam bullet pointing above chamber What is a cause that i a non-smith can check? Ejector / spring? __________________ Mauser Swiss 29/70

07-28-2022, 08:46 PM	#2
G.T. Lifer Lifetime Forum Patron Join Date: Jun 2002 Location: Chandler Arizona Posts: 3,309 Thanks: 1,151 Thanked 3,050 Times in 874 Posts	Hi David! Are you still having that issue? If so, let me take it to the range, trouble shoot, and allivate the problem for you, no charge. It is not opening the breechblock back enough to get fuly behind the cartridge. The PPU ammo should have addressed that? Let me know as we are not done until your Luger is running correctly... Best, til....lat'r.....GT BTW, although i don't think it is the problem, the tight fork might be causing a dynamic drag between breechblock and receiver... We can correct... best, til.....lat'r....GT....

07-29-2022, 02:53 PM	#4
rhuff Patron LugerForum Patron Join Date: Mar 2011 Location: Az. Posts: 2,235 Thanks: 2,593 Thanked 921 Times in 681 Posts	Perhaps your recoil spring is too strong, but give the gun to GT and he will get it sorted out so that it runs reliably. __________________ Need DWM breechblock #21

08-01-2022, 09:47 PM	#8
DHass New User Join Date: Nov 2011 Location: Phoenix AZ Posts: 4 Thanks: 0 Thanked 12 Times in 2 Posts	Thanks to all. Everything is fine now. Both factory mags are working now. It was my stupidity. I was limp wristing unbraced manually working the action andnot clearing the mag. __________________ Mauser Swiss 29/70

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

07-28-2022, 11:46 PM	#3
gunbugs Lifetime Forum Patron Join Date: Sep 2013 Location: Fairbanks, Alaska. Home of the best moose. Posts: 509 Thanks: 241 Thanked 863 Times in 281 Posts	"limp wristing" could be a contributing factor.

07-30-2022, 06:53 AM	#5
Vlim Moderator Lifetime LugerForum Patron Join Date: Oct 2002 Location: Europe Posts: 4,909 Thanks: 950 Thanked 3,458 Times in 1,075 Posts	Also check the magazine. Post war Mauser magazines are not very good. If a Mec Gar doesn't feed well, it's not the magazine.

07-31-2022, 04:02 PM	#6
Dwight Gruber User Join Date: Jun 2002 Location: Portland, Oregon Posts: 3,863 Thanks: 0 Thanked 1,198 Times in 399 Posts	What ammunition are you using? This is problem commonly associated with using ammunition with a too-short overall cartridge length. Modern SAAMI specs include a minimum oal for 9x19 parabellum which is as much as 2mm shorter than the original DWM minimum specification. --Dwight

08-02-2022, 01:55 PM	#9
Kiwi User Join Date: Mar 2019 Location: Wrong side of the Delaware river Posts: 184 Thanks: 113 Thanked 287 Times in 97 Posts	Oh!, I met the enemy, and it was me Glad resolved

08-02-2022, 06:13 PM	#10
gunbugs Lifetime Forum Patron Join Date: Sep 2013 Location: Fairbanks, Alaska. Home of the best moose. Posts: 509 Thanks: 241 Thanked 863 Times in 281 Posts	I win!