Regarding Concentric Circled On Navy Mags - Page 4

DonVoigt · 05-04-2017, 01:16 PM

Quote:

Originally Posted by Chickenthief

I think it is magazine spring tension, but!

Why did the marine have to teel 9mm mags from 7.65mm mags?
The Germans didnt adopt the 7.65mm in the first place and the marine only had mags for the 9mm.

I understand the difference would the the spring tension- that is the question- are they different, or more exactly were they manufactured differently.

There were changes in the shape of the shell lips and length of slot,
that is well known; but I've not seen any mag spring data.

Mainsprings were changed several times and the number of coils and wire diameter and number of turns are recorded.

This question does not apply only to "military" use, but also the many commercial models.

Vlim · 05-04-2017, 11:22 AM

There is a 1904 drawing of the coil spring 9mm luger with the concentric circles. Perhaps the navy simply followed the drawing. Makes one think if the rings are actually stylized coils

In East Germany the circles made a comeback. This time on the grips.

cirelaw · 05-04-2017, 01:51 PM

Since they were handy, besides the handle are they essentially both the same?

Norme · 05-04-2017, 02:16 PM

Well Eric, since you have them handy, what do you think?

cirelaw · 05-04-2017, 02:23 PM

Genius!!!!

Vlim · 05-04-2017, 04:17 PM

I loaded my Bing drum with .30 luger and shot them through a 1929 Swiss luger. Worked perfectly.

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05-04-2017, 11:22 AM	#2
Vlim Moderator Lifetime LugerForum Patron Join Date: Oct 2002 Location: Europe Posts: 5,053 Thanks: 1,036 Thanked 3,991 Times in 1,205 Posts	There is a 1904 drawing of the coil spring 9mm luger with the concentric circles. Perhaps the navy simply followed the drawing. Makes one think if the rings are actually stylized coils In East Germany the circles made a comeback. This time on the grips.

05-04-2017, 02:16 PM	#4
Norme Always A Lifetime Forum Patron Join Date: Jul 2009 Location: Colorado Posts: 2,417 Thanks: 226 Thanked 2,607 Times in 933 Posts	Well Eric, since you have them handy, what do you think?

05-04-2017, 02:23 PM	#5
cirelaw Lifer Lifetime Forum Patron Join Date: Dec 2003 Location: PORT ST LUCIE, FLORIDA Posts: 12,216 Thanks: 6,209 Thanked 4,138 Times in 2,176 Posts	Genius!!!!

05-04-2017, 04:17 PM	#6
Vlim Moderator Lifetime LugerForum Patron Join Date: Oct 2002 Location: Europe Posts: 5,053 Thanks: 1,036 Thanked 3,991 Times in 1,205 Posts	I loaded my Bing drum with .30 luger and shot them through a 1929 Swiss luger. Worked perfectly.