Interarms Mauser Parabellum Construction

Michael Zeleny · 08-27-2003, 06:27 AM

Are the forward toggle link (730 190) and the recoil lever (730 127) on this pistol forged or cast? The longitudinal seams on these parts suggest that their manufacture technique is anything but machined from bar stock.

Is it normal for the Interarms Mauser magazines to grip the top cartridge very tightly?

Lugerdoc · 08-27-2003, 09:31 AM

Michael, As with most modern pistols, these parts were cast and then machined. Only the barrels were machined out of bar stock. If someone out there has scanning capabilities and a copy of John Walter's book "Luger" perhaps they will scan page 134 which illustrates the various stages of manufacture. TH

Sieger · 08-27-2003, 12:00 PM

<blockquote>quote:<hr />Originally posted by Michael Zeleny:

Is it normal for the Interarms Mauser magazines to grip the top cartridge very tightly?[/QB]<hr /></blockquote>Dear Mike:

Help me understand "grip". Is it the fact that the magazine spring is so strong as to force the cartridge up against the lips very tightly?

A very common Luger feeding problem is caused by cartridges with OALs that are too short to properly feed from the magazine. This canting downward of the upper cartridges in the magazine can cause binding, and thus, jamming, usually of the upper three cartridges.

Sieger

Michael Zeleny · 08-27-2003, 02:08 PM

Yecch. I was hoping for machined forgings. Still, Martin Retting has waranted the gun for a year, so I might as well try to break the action with factory loads.

One of the magazines has problems getting the top cartridge to the feed lips, notwithstanding the seemingly adequate spring rate. However everything settles in under recoil.

Sieger · 08-27-2003, 05:12 PM

<blockquote>quote:<hr />Originally posted by Michael Zeleny:
Yecch. I was hoping for machined forgings. Still, Martin Retting has warranted the gun for a year, so I might as well try to break the action with factory loads.

One of the magazines has problems getting the top cartridge to the feed lips, notwithstanding the seemingly adequate spring rate. However everything settles in under recoil.<hr /></blockquote>Dear Mike:

I wouldn't worry about the pistol not holding up under any factory load, as most major firearms today, both rifles and pistols, are made from investment castings.

The magazine problem sounds a little unusual. Does the other magazine feed properly?

Sieger

Michael Zeleny · 08-27-2003, 05:29 PM

Dear Bob, -- thanks for the reassurance, but I belong to the school that insists on traditional sidearms of traditional construction. This was supposed to be an interim replacement of my P210-2, presumptively lost to the vagaries of our judicial system. (I was found innocent; not so the handgun.) There is no substitute for that milled out of solid bar stock tactile feel.

Both magazines feed and extract fine. The problem is with ejection and last shot lockup.

08-27-2003, 06:27 AM	#1
Michael Zeleny Patron LugerForum Patron Join Date: Jul 2003 Location: Los Angeles Posts: 525 Thanks: 129 Thanked 138 Times in 76 Posts	Interarms Mauser Parabellum Construction Are the forward toggle link (730 190) and the recoil lever (730 127) on this pistol forged or cast? The longitudinal seams on these parts suggest that their manufacture technique is anything but machined from bar stock. Is it normal for the Interarms Mauser magazines to grip the top cartridge very tightly? __________________ Michael Zeleny@post.harvard.edu -- http://larvatus.livejournal.com/ -- 7576 Willow Glen Road, Los Angeles, CA 90046 -- 323.363.1860 All of old. Nothing else ever. Ever tried. Ever failed. No matter. Try again. Fail again. Fail better. -- Samuel Beckett

08-27-2003, 09:31 AM	#2
Lugerdoc Patron LugerForum Patron Join Date: Jun 2002 Location: POB 398 St.Charles,MO. 63302 Posts: 5,089 Thanks: 6 Thanked 736 Times in 483 Posts	Michael, As with most modern pistols, these parts were cast and then machined. Only the barrels were machined out of bar stock. If someone out there has scanning capabilities and a copy of John Walter's book "Luger" perhaps they will scan page 134 which illustrates the various stages of manufacture. TH __________________ Tom Heller POB 398 ST.Charles, MO. 63302 Tel 636-447-3006 lugerdoc@charter.net

08-27-2003, 12:00 PM	#3
Sieger User Join Date: Jul 2003 Location: New York, NY Posts: 1,575 Thanks: 2,124 Thanked 400 Times in 249 Posts	</font><blockquote><font size="1" face="Verdana,Tahoma,Arial,Helvetica,Geneva">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Originally posted by Michael Zeleny: Is it normal for the Interarms Mauser magazines to grip the top cartridge very tightly?[/QB]</font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Dear Mike: Help me understand "grip". Is it the fact that the magazine spring is so strong as to force the cartridge up against the lips very tightly? A very common Luger feeding problem is caused by cartridges with OALs that are too short to properly feed from the magazine. This canting downward of the upper cartridges in the magazine can cause binding, and thus, jamming, usually of the upper three cartridges. Sieger

08-27-2003, 02:08 PM	#4
Michael Zeleny Patron LugerForum Patron Join Date: Jul 2003 Location: Los Angeles Posts: 525 Thanks: 129 Thanked 138 Times in 76 Posts	Yecch. I was hoping for machined forgings. Still, Martin Retting has waranted the gun for a year, so I might as well try to break the action with factory loads. One of the magazines has problems getting the top cartridge to the feed lips, notwithstanding the seemingly adequate spring rate. However everything settles in under recoil. __________________ Michael Zeleny@post.harvard.edu -- http://larvatus.livejournal.com/ -- 7576 Willow Glen Road, Los Angeles, CA 90046 -- 323.363.1860 All of old. Nothing else ever. Ever tried. Ever failed. No matter. Try again. Fail again. Fail better. -- Samuel Beckett

08-27-2003, 05:12 PM	#5
Sieger User Join Date: Jul 2003 Location: New York, NY Posts: 1,575 Thanks: 2,124 Thanked 400 Times in 249 Posts	</font><blockquote><font size="1" face="Verdana,Tahoma,Arial,Helvetica,Geneva">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Originally posted by Michael Zeleny: <strong>Yecch. I was hoping for machined forgings. Still, Martin Retting has warranted the gun for a year, so I might as well try to break the action with factory loads. One of the magazines has problems getting the top cartridge to the feed lips, notwithstanding the seemingly adequate spring rate. However everything settles in under recoil.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Dear Mike: I wouldn't worry about the pistol not holding up under any factory load, as most major firearms today, both rifles and pistols, are made from investment castings. The magazine problem sounds a little unusual. Does the other magazine feed properly? Sieger

08-27-2003, 05:29 PM	#6
Michael Zeleny Patron LugerForum Patron Join Date: Jul 2003 Location: Los Angeles Posts: 525 Thanks: 129 Thanked 138 Times in 76 Posts	Dear Bob, -- thanks for the reassurance, but I belong to the school that insists on traditional sidearms of traditional construction. This was supposed to be an interim replacement of my P210-2, presumptively lost to the vagaries of our judicial system. (I was found innocent; not so the handgun.) There is no substitute for that milled out of solid bar stock tactile feel. Both magazines feed and extract fine. The problem is with ejection and last shot lockup. __________________ Michael Zeleny@post.harvard.edu -- http://larvatus.livejournal.com/ -- 7576 Willow Glen Road, Los Angeles, CA 90046 -- 323.363.1860 All of old. Nothing else ever. Ever tried. Ever failed. No matter. Try again. Fail again. Fail better. -- Samuel Beckett