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Sieger · 08-08-2003, 09:04 PM

<blockquote>quote:<hr />Originally posted by Rick W.:
Hello Everyone,

After reading some of the information in the posts, including my own, I had some further questions, so this morning I did an experiment.

(1) I made up three 9mm dummy rounds, all with a 115gr Winchester FMJ, overall length of approx 1.120"(yes a bit short).

(2) I made up three 9mm dummy rounds using same bullet with an overall length of approx 1.180". All 6 dummy rounds in (1) and (2) measured with a 6" Mitutoyo dial caliper.

(3) Three magazines at my disposal; one blue vintage, one nickel vintage, and one new stainless flat sided magazine from the Stoeger era.

(4) Two frames, a 1918 blue and a stainless.

Measurements of above magazines:

blue vintage: 1.105" wide by 0.545" deep
nickel vintage: 1.100" wide by 0.550" deep
stainless flat" 1.130" wide by 0.475" deep

Interesting to note that the stainless will not go into the 1918 blue frame, maybe only because of the increased width.

http://boards.rennlist.com/lfupload/both.jpg
http://boards.rennlist.com/lfupload/both1.jpg<hr /></blockquote>Dear Rick:

For a full test here, perhaps we should retry the test with 8 rounds, as the the traditional step feed problem usually occurs with the 6th, 7th and 8th round. This is because the AOL problem accelerates as more rounds are placed into the magazine. If you look at a full magazine, in a way, the cartridges even look like the rungs on a latter. These rungs must be evenly spaced for proper function.

It sounds to me like Stoeger went the wrong way with making the magazine wider (from 1.10 old to 1.13 new). For shorter cartridges, the inside of the magazine, at least, should have been shortened (old standard cartridge length 1.173, new standard length 1.169). Yes, in my experience these couple of thousands make a real difference in pistol function.

Bob

08-08-2003, 09:04 PM	#17
Sieger User Join Date: Jul 2003 Location: New York, NY Posts: 1,579 Thanks: 2,154 Thanked 402 Times in 251 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 Rick W.: <strong>Hello Everyone, After reading some of the information in the posts, including my own, I had some further questions, so this morning I did an experiment. (1) I made up three 9mm dummy rounds, all with a 115gr Winchester FMJ, overall length of approx 1.120"(yes a bit short). (2) I made up three 9mm dummy rounds using same bullet with an overall length of approx 1.180". All 6 dummy rounds in (1) and (2) measured with a 6" Mitutoyo dial caliper. (3) Three magazines at my disposal; one blue vintage, one nickel vintage, and one new stainless flat sided magazine from the Stoeger era. (4) Two frames, a 1918 blue and a stainless. Measurements of above magazines: blue vintage: 1.105" wide by 0.545" deep nickel vintage: 1.100" wide by 0.550" deep stainless flat" 1.130" wide by 0.475" deep Interesting to note that the stainless will not go into the 1918 blue frame, maybe only because of the increased width. http://boards.rennlist.com/lfupload/both.jpg http://boards.rennlist.com/lfupload/both1.jpg</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Dear Rick: For a full test here, perhaps we should retry the test with 8 rounds, as the the traditional step feed problem usually occurs with the 6th, 7th and 8th round. This is because the AOL problem accelerates as more rounds are placed into the magazine. If you look at a full magazine, in a way, the cartridges even look like the rungs on a latter. These rungs must be evenly spaced for proper function. It sounds to me like Stoeger went the wrong way with making the magazine wider (from 1.10 old to 1.13 new). For shorter cartridges, the inside of the magazine, at least, should have been shortened (old standard cartridge length 1.173, new standard length 1.169). Yes, in my experience these couple of thousands make a real difference in pistol function. Bob