@ the range

suum cuique · 05-16-2010, 02:26 AM

I went to the NRA range today and bought a (white) box of Winchester (black lettering) 9mm NATO (124 grain FMJ)
The recoil was harder and every 1-2 rounds the Luger jammed. I tried several rounds and then gave up.

Then I switched back to my regular Winchester White Box ammo with 115 grain bullets and the gun shot smooth and flawless like always.

I shot Magtech, Remington UMS, American Eagle and never experienced this before. (They all had 115grain bullets).
I didn't know that a 124 grain bullet makes such a big difference.

Is a 124 grain bullet just too heavy for a Luger?

Sieger · 05-19-2010, 01:35 AM

Hi:

No, your problem is not with the weight of the bullet, but rather the charge.

Current NATO Specifications: 121 grain bullet at 1,260 fps.

The NATO load is some 17% hotter than the DWM WWI and later German Army loads.

Stick with the lighter loads, or you might easily damage your fine Luger.

Sieger

mrerick · 05-19-2010, 10:31 AM

My luger is finicky about charge load too. I found that reduced loads (4.0gn about 5% less than the recommended dose of TiteGroup behind a 115gn FMJ) worked reliably.

Marc

suum cuique · 05-20-2010, 09:35 PM

Quote:

Originally Posted by Sieger

Hi:

No, your problem is not with the weight of the bullet, but rather the charge.

Current NATO Specifications: 121 grain bullet at 1,260 fps.

The NATO load is some 17% hotter than the DWM WWI and later German Army loads.

Stick with the lighter loads, or you might easily damage your fine Luger.

Sieger

Sieger, you are absolutly right. I'm really scared to hurt my baby, of course I'll stick with Winchester White Box or Remington UMC 115 gr. ammo.
Especially the Remington UMC ammo is very soft (and 1-2 mm shorter than other 9mm Luger ammo). I had the best results with regular Winchester White Box ammo. I'll give the box with the 9mm NATO rounds to my buddy. I've just shot a few rounds of the 9mm NATO ammo with my Luger.

Sieger · 05-20-2010, 11:29 PM

Hi Again:

Over all length also matters quite a bit in that greatly slanted Luger magazine.

Best, with round nosed bullets is 1.169 to 1.173 inches if you are going to be firing a full magazine of 8 rounds.

Sieger

05-16-2010, 02:26 AM	#1
suum cuique User Join Date: Aug 2009 Location: MD / Currently about 9000 klicks east of the Potomac Posts: 497 Thanks: 100 Thanked 47 Times in 35 Posts	@ the range I went to the NRA range today and bought a (white) box of Winchester (black lettering) 9mm NATO (124 grain FMJ) The recoil was harder and every 1-2 rounds the Luger jammed. I tried several rounds and then gave up. Then I switched back to my regular Winchester White Box ammo with 115 grain bullets and the gun shot smooth and flawless like always. I shot Magtech, Remington UMS, American Eagle and never experienced this before. (They all had 115grain bullets). I didn't know that a 124 grain bullet makes such a big difference. Is a 124 grain bullet just too heavy for a Luger? __________________ Regards, Andy There's No Place Like Home (Wizard Of Oz)

05-19-2010, 01:35 AM	#2
Sieger User Join Date: Jul 2003 Location: New York, NY Posts: 1,575 Thanks: 2,124 Thanked 400 Times in 249 Posts	Hi: No, your problem is not with the weight of the bullet, but rather the charge. Current NATO Specifications: 121 grain bullet at 1,260 fps. The NATO load is some 17% hotter than the DWM WWI and later German Army loads. Stick with the lighter loads, or you might easily damage your fine Luger. Sieger

05-19-2010, 10:31 AM	#3
mrerick Super Moderator - Patron LugerForum Life Patron Join Date: Dec 2009 Location: Eastern North Carolina, USA Posts: 3,900 Thanks: 1,372 Thanked 3,094 Times in 1,503 Posts	My luger is finicky about charge load too. I found that reduced loads (4.0gn about 5% less than the recommended dose of TiteGroup behind a 115gn FMJ) worked reliably. Marc

05-20-2010, 11:29 PM	#5
Sieger User Join Date: Jul 2003 Location: New York, NY Posts: 1,575 Thanks: 2,124 Thanked 400 Times in 249 Posts	Hi Again: Over all length also matters quite a bit in that greatly slanted Luger magazine. Best, with round nosed bullets is 1.169 to 1.173 inches if you are going to be firing a full magazine of 8 rounds. Sieger