Anyone have problems with 10rd mags

gregarat · September 22nd, 2005, 02:00 AM

Today I bought a Chip McCormic 10rd mag, and a mag follower wich I have not yet installed in eater of my mags.

I didnt have time to go back to the range yet. So I have been cycling rounds through my 1911 by hand. When cycling by hand, my 7rd is feeding fine (it may be a different story when I cycle rounds by firing)
The Chip McCormic10rd mag only feeds half way into the chamber. Sometimes I can press the slide forward to seat the round.

Has anyone else had problems with 10rd Chip McCormic mags. Or maybe the gun just needs breaking in?

A1C Lickey · September 22nd, 2005, 03:42 AM

I'll be honest the only magazine I've had trouble with in my 1911 is a Chip McCormic 8rd. I don't know why, but if the slide is locked back I can over insert this magazine into the gun and lock up the slide when I try to chamber a round. Only magazine I have this problem with, factory mags and my Wilson 10rd mags all work fine no matter how I'm loading them.

A1C Lickey

Bud White · September 22nd, 2005, 07:45 AM

Never had a problem with CMC mags but i only use the 8 rounders try shoooting it and go from there

RSSZ · September 22nd, 2005, 08:06 AM

Could or could not be your problem--BUT--I always highly polish and contour the inside of all my mag feed lips. I haven't had a problen with some of the brands of mags that I hear complaints about. I load the mag to full capacity with the last round loaded being black with magic marker. I then check it for unwanted/unnecessary streaking. And/or use the brass and check it with a magnifying glass for deep scratches. Sometime I am very surprised to see how deep the scratches are.--------

Tangle · September 22nd, 2005, 08:14 AM

gregarat,
Yep, I've had the problem with 10 round McCormicks you describe. I never got comfortable with them because every now and then they'd do what you described.

You won't like this, but my solution was to buy Wilson Combat 10 round mags. They look like they are better made and better quality. I believe they are. I don't recall having any problems with the 10 round Wilson mags.

gregarat · September 22nd, 2005, 08:50 PM

Some people tell me that Wilson mags are better, some say that there overpriced and McCormick mags are the way to go.

I did some surfing and found an article stating the very same problem with 10rd. McCormick mags. My guess so far is that some 1911s just dont like them.

I actual have to find the time when I have the day off, and the range is open. My main range is only open on week ends and wednesdays, until 18:00hr.

CombatEffective · September 22nd, 2005, 09:48 PM

I have two CM 10 rounders and have not had problems with them. In the future I'll be buying Wilson Combat mags as I like their follower better.

QKShooter · September 22nd, 2005, 10:00 PM

Sometimes what people think is a 1911 magazine problem is actually an extractor related problem.
Especially with a brand new pistol.
Since it seems like no factory pistol assembly people want to bother to properly tune a doggone extractor these days.

More often than you think it's not the bullet nose that will not go up the feed ramp & into the chamber - sometimes that is NOT the main problem or the only problem.
The problem sometimes is NOT the mag feed lips OR exactly when they release the top cartridge.
OFTEN...it's the rear of the cartridge case that will not slip up into the extractor notch!
The two feed jams look nearly identical but...one problem is in the front & the other problem is in the rear.

IDEALLY a properly tuned Colt .45 pistol SHOULD feed mixed magazines of assorted ammo EVEN when the slide is held and run forward and cycled very slowly.
BE CAREFUL WHEN YOU DO THAT.

You should actually be able to watch the breech face move the cartridge forward in the mag lips & the bullet nose hit & travel up the frame & barrel ramp & the rear of the case pop up into the extractor.
WITHOUT having to push on the slide.
This DOES NOT mean that you should just automatically decrease your extractor tension.
Too much extractor tension might not be causing the problem.
A too lightly tensioned extractor is not the answer to the problem either & will cause OTHER ejection problems.

The business end of the extractor & its hook & notch need to be shaped & properly configured.

Many factory extractors have TOO MUCH sharp hook that bites into the cartridge brass like a knife & the notch is rough & too sharply beveled at the bottom where the case needs to be able to easily slip up into it.
Many magazine problems are really extractor problems.

The breech face should also be carefully stoned/polished.

If you don't feel confident that you can do the work yourself then have a pro do a "Reliability Job" on your pistol & tune your extractor.
It's money well spent.

My 1911 pistols will feed ANYTHING and from the cheapest military surplus mags...which usually cost a Whopping $5.00 each.

Naturally, I carry better quality mags but, my pistols will all feed using Factory Colt or the cheapest surplus mil spec mags.

There is no reason why any Colt 1911 pistol or Colt Clone should not be able to feed exactly the same way.

Tangle · September 23rd, 2005, 01:21 PM

Well, I have resisted as long as I can. The real problem I have with 10 round mags is they won't hold 15 rounds.

JT · September 23rd, 2005, 01:30 PM

Dang it, Tangle, you beat me to the punch line.

September 22nd, 2005, 02:00 AM	#1
gregarat Senior Member Join Date: Jun 2005 Location: Central NYS Posts: 856	Anyone have problems with 10rd mags Today I bought a Chip McCormic 10rd mag, and a mag follower wich I have not yet installed in eater of my mags. I didnt have time to go back to the range yet. So I have been cycling rounds through my 1911 by hand. When cycling by hand, my 7rd is feeding fine (it may be a different story when I cycle rounds by firing) The Chip McCormic10rd mag only feeds half way into the chamber. Sometimes I can press the slide forward to seat the round. Has anyone else had problems with 10rd Chip McCormic mags. Or maybe the gun just needs breaking in?

September 22nd, 2005, 09:48 PM	#7
CombatEffective Senior Member Join Date: Apr 2005 Posts: 1,000	I have two CM 10 rounders and have not had problems with them. In the future I'll be buying Wilson Combat mags as I like their follower better. __________________ Shooters' Legacy Special sections for S&W and Ruger

September 22nd, 2005, 10:00 PM	#8
QKShooter Assistant Administrator Join Date: Dec 2004 Location: Off Of The X Posts: 19,997	Added Thoughts & Info Sometimes what people think is a 1911 magazine problem is actually an extractor related problem. Especially with a brand new pistol. Since it seems like no factory pistol assembly people want to bother to properly tune a doggone extractor these days. More often than you think it's not the bullet nose that will not go up the feed ramp & into the chamber - sometimes that is NOT the main problem or the only problem. The problem sometimes is NOT the mag feed lips OR exactly when they release the top cartridge. OFTEN...it's the rear of the cartridge case that will not slip up into the extractor notch! The two feed jams look nearly identical but...one problem is in the front & the other problem is in the rear. IDEALLY a properly tuned Colt .45 pistol SHOULD feed mixed magazines of assorted ammo EVEN when the slide is held and run forward and cycled very slowly. BE CAREFUL WHEN YOU DO THAT. You should actually be able to watch the breech face move the cartridge forward in the mag lips & the bullet nose hit & travel up the frame & barrel ramp & the rear of the case pop up into the extractor. WITHOUT having to push on the slide. This DOES NOT mean that you should just automatically decrease your extractor tension. Too much extractor tension might not be causing the problem. A too lightly tensioned extractor is not the answer to the problem either & will cause OTHER ejection problems. The business end of the extractor & its hook & notch need to be shaped & properly configured. Many factory extractors have TOO MUCH sharp hook that bites into the cartridge brass like a knife & the notch is rough & too sharply beveled at the bottom where the case needs to be able to easily slip up into it. Many magazine problems are really extractor problems. The breech face should also be carefully stoned/polished. If you don't feel confident that you can do the work yourself then have a pro do a "Reliability Job" on your pistol & tune your extractor. It's money well spent. My 1911 pistols will feed ANYTHING and from the cheapest military surplus mags...which usually cost a Whopping $5.00 each. Naturally, I carry better quality mags but, my pistols will all feed using Factory Colt or the cheapest surplus mil spec mags. There is no reason why any Colt 1911 pistol or Colt Clone should not be able to feed exactly the same way. __________________

September 23rd, 2005, 01:30 PM	#10
JT Senior Member Join Date: Dec 2004 Location: Texas Posts: 1,099	Dang it, Tangle, you beat me to the punch line. __________________ Blessed be the Lord my rock who trains my hands for war and my fingers for battle. Psalm 144:1 Si vis pacem, para bellum

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September 22nd, 2005, 03:42 AM	#2
A1C Lickey Senior Member Join Date: Jun 2005 Location: Luke AFB, AZ Posts: 707	I'll be honest the only magazine I've had trouble with in my 1911 is a Chip McCormic 8rd. I don't know why, but if the slide is locked back I can over insert this magazine into the gun and lock up the slide when I try to chamber a round. Only magazine I have this problem with, factory mags and my Wilson 10rd mags all work fine no matter how I'm loading them. A1C Lickey

September 22nd, 2005, 07:45 AM	#3
Bud White VIP Member Join Date: Dec 2004 Location: Elsewhere Posts: 17,476	Never had a problem with CMC mags but i only use the 8 rounders try shoooting it and go from there

September 22nd, 2005, 08:06 AM	#4
RSSZ Distinguished Member Join Date: Mar 2005 Location: USA Posts: 1,847	Could or could not be your problem--BUT--I always highly polish and contour the inside of all my mag feed lips. I haven't had a problen with some of the brands of mags that I hear complaints about. I load the mag to full capacity with the last round loaded being black with magic marker. I then check it for unwanted/unnecessary streaking. And/or use the brass and check it with a magnifying glass for deep scratches. Sometime I am very surprised to see how deep the scratches are.--------

September 22nd, 2005, 08:14 AM	#5
Tangle Senior Moderator Join Date: Dec 2004 Location: Chattanooga Posts: 5,801	gregarat, Yep, I've had the problem with 10 round McCormicks you describe. I never got comfortable with them because every now and then they'd do what you described. You won't like this, but my solution was to buy Wilson Combat 10 round mags. They look like they are better made and better quality. I believe they are. I don't recall having any problems with the 10 round Wilson mags.

September 22nd, 2005, 08:50 PM	#6
gregarat Senior Member Join Date: Jun 2005 Location: Central NYS Posts: 856	Some people tell me that Wilson mags are better, some say that there overpriced and McCormick mags are the way to go. I did some surfing and found an article stating the very same problem with 10rd. McCormick mags. My guess so far is that some 1911s just dont like them. I actual have to find the time when I have the day off, and the range is open. My main range is only open on week ends and wednesdays, until 18:00hr.

September 23rd, 2005, 01:21 PM	#9
Tangle Senior Moderator Join Date: Dec 2004 Location: Chattanooga Posts: 5,801	Well, I have resisted as long as I can. The real problem I have with 10 round mags is they won't hold 15 rounds.