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Odd S&W Slide Auto Released issue expericenced Login/Join 
Member
Picture of RGRacing
posted
S&W 380 Bodyguard - During Mag Changes at a range session, smacking mag in, the slide releases and goes into battery - 4 of 5 times. Slow gentle mag change was ok. This was a NIB Pistol.

Happened on a Used recent purchase S&W 9mm Pro as well - almost the same symptoms.
Very Odd compared to other Pistol Mag Changes I've had experience with.

Had a S&W 45 double stack that was consistent and never Auto Released during our session.

Anyone else see this as an odd or dangerous action - It surprised me when it happened but if I was in a competition I would have appreciated it.
 
Posts: 492 | Location: Mpls, MN | Registered: January 05, 2017Reply With QuoteReport This Post
Freethinker
Picture of sigfreund
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This question has often arisen about other guns. It’s so common with Glocks that many users depend upon its happening when reloading at speed. The mechanism that causes it is very simple: If sufficient force is applied to the butt of the gun that the frame is driven forward while inertia keeps the slide from moving, that will release the slide catch and permit the slide to move forward.

The only disadvantage of its happening is that if it’s common enough, users start depending upon it rather than releasing the slide manually. When it doesn’t happen they may become confused and not release the slide as they should.

In my experience it is common not only with Glocks, but also S&W M&P models. It is not common with SIG Classic line pistols, but not impossible or unheard of.




6.4/93.6

“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 47360 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
His diet consists of black
coffee, and sarcasm.
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I have had this happen on other guns. (I don't remember for certain which ones. My current SIG and two CZs do not.) This is only a problem if it fails to chamber the round.
 
Posts: 27815 | Location: Johnson City/Elizabethton, TN | Registered: April 28, 2012Reply With QuoteReport This Post
Gloom, despair and
agony on me.
Picture of drabfour
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Yes several discussions on this topic.

https://sigforum.com/eve/forums...850020144#6850020144
 
Posts: 4980 | Location: Texas | Registered: July 22, 2008Reply With QuoteReport This Post
Leave the gun.
Take the cannoli.
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quote:
Originally posted by drabfour:
Yes several discussions on this topic.

https://sigforum.com/eve/forums...850020144#6850020144


Big Grin People forget this gun forum actually has a pistol section.
 
Posts: 6634 | Location: New England | Registered: January 06, 2003Reply With QuoteReport This Post
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My H&Ks do it. I like it and, as sigfreund has said, I have come to rely on it.
 
Posts: 8598 | Registered: September 26, 2013Reply With QuoteReport This Post
Ammoholic
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When running a P320 in a class I was a little over-enthusiastic and was getting regular “birthday bumps”. I thought it was cool until the one time when it didn’t pick up a round. After that, I made a concerted effort to avoid them.
 
Posts: 6867 | Location: Lost, but making time. | Registered: February 23, 2011Reply With QuoteReport This Post
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Picture of TRshootem
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This is my favorite feature of my M&P pistols. Auto release of the slide when aggressive mag change is done = perfect function of a semi-auto Big Grin Seriously, if only my single stack 1911's would cooperate.
 
Posts: 1320 | Location: Montana | Registered: October 20, 2007Reply With QuoteReport This Post
Sigforum K9 handler
Picture of jljones
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Very common.

As are the posts of “Is it a feature or defect”?




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"It's a bold strategy, Cotton. Let's see if it works out for them"



 
Posts: 37078 | Location: Logical | Registered: September 12, 2004Reply With QuoteReport This Post
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Picture of RGRacing
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Thanks to all who commented, I was just a shooting companion and evaluating these new to my buddy guns. I am not a Stricker/Polymer guy as yet.

I did follow the past posts as well and concur with the posts - My vote is: I don't like surprises - Ever. Yes I do shoot USPSA and understand every fraction of a second counts - but - consistency of action is paramount to me.
 
Posts: 492 | Location: Mpls, MN | Registered: January 05, 2017Reply With QuoteReport This Post
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It is common. But I was always told / taught that slamming in a mag can be damaging to mag and gun.
Wanna see the classic "mag slam"? The opening segment of the original Magnum PI. Selleck slams the crap out of a 1911 mag.
Cant say I saw him do it to his high $$$ Gunsite 1911 in the Jesse Stone movies.


End of Earth: 2 Miles
Upper Peninsula: 4 Miles
 
Posts: 15991 | Location: Marquette MI | Registered: July 08, 2014Reply With QuoteReport This Post
Freethinker
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To help avoid its happening, the force in seating the magazine should be in line with the mag well, and not against the bottom rear of the grip.




6.4/93.6

“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 47360 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
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