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Common Problems and Solutions

This is a discussion on Common Problems and Solutions within the MP Pistol Tech Help forums, part of the Smith & Wesson MP Forum category; If factory ammo works and reloads don't, look to the reloads for your problem. You may not be taking as much flare out of the ...


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Old September 1st, 2012, 02:23 PM   #31
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If factory ammo works and reloads don't, look to the reloads for your problem. You may not be taking as much flare out of the case as you should when reloading. Also if the cases came from a glock you may have the old glock bulge problem.

Make certain you full length resize and use a little more crimp.

I ran well over 15,000 reloads of various bullet types and weights thru my M&P 40 without a single feed problem.

Edit: Also make sure the bullet is not hitting the rifeling. Some compacts have shorter throtes than full size guns and require a bit deeper bullet seating than others. Pull the barrel out and see if after dropping a cartridge in the chamber it seats fully and will rotate freely.

Last edited by TOF; September 1st, 2012 at 02:27 PM.
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Old September 1st, 2012, 04:17 PM   #32
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These have never been fired in a Glock before, just the M&P 40c. But I am using a Lee press, which doesn't resize the case all the way down to the rim. That has always bugged me about the Lee. I never had any problems with my 9mm loads for the Glock, but alas, the Glock doesn't mind the little bulge, as you mentioned. But, the reloads go all the way in the chamber and spin around freely, so I didn't think it was a problem (I do take the barrel out of the gun for this test). I also give them a slight crimp, so I've never seen any feeding issues. Maybe I'll give them a little more crimp. I'm afraid to overdo it since they are plated bullets.

I remembered, after my original post, that I did have this problem about 4 times out of 150 rounds the very first trip to the range. I was using 180gr American Eagle that time out. That was my first time firing a compact 40, though, so I chalked it up to holding the firearm too loose or maybe too tight. I did have a little trouble holding on to it the first few times I fired it.
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Old September 22nd, 2012, 05:49 PM   #33
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Unhappy 9 jams on first try.

We purchased the M&P 40 and 300 rounds. We went to the local range in Sierra Vista and the pistol jamed 9 times. I am not impressed with the pistol. I recommended the purchas of the pistol because of its reliability but dropping the mag when jamed and then clearning the weapon, re-inserting the mag and starting again means I am dead.

This is not good. We have another 500 rounds, we are shooting Wal-mart ammo now because they have a price break. It is S&W. We fired Federal to start with and are not pleased.

I do not want a Glock because though they are supposed to be reliable, dirt and water do not make the Glock happy.

We have not even bothered getting the S&W wet or dirty, it hangs just the way it is. It is not encouraging to have it hang at the range. In the dirt and mud, maybe.

Is there some problem we do not know about? How many have had hangs with brand new, out of the box weapons? http://mp-pistol.com/images/smilies/rant.gif

Thanks
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Old September 22nd, 2012, 07:28 PM   #34
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Quote:
Originally Posted by BobbyMissions View Post
We purchased the M&P 40 and 300 rounds. We went to the local range in Sierra Vista and the pistol jamed 9 times. I am not impressed with the pistol. I recommended the purchas of the pistol because of its reliability but dropping the mag when jamed and then clearning the weapon, re-inserting the mag and starting again means I am dead.

This is not good. We have another 500 rounds, we are shooting Wal-mart ammo now because they have a price break. It is S&W. We fired Federal to start with and are not pleased.

I do not want a Glock because though they are supposed to be reliable, dirt and water do not make the Glock happy.

We have not even bothered getting the S&W wet or dirty, it hangs just the way it is. It is not encouraging to have it hang at the range. In the dirt and mud, maybe.

Is there some problem we do not know about? How many have had hangs with brand new, out of the box weapons? http://mp-pistol.com/images/smilies/rant.gif

Thanks
Did you clean it prior to your range trip?
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Old September 22nd, 2012, 07:59 PM   #35
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There is sometimes a break in period. Try cleaning it and running some hot ammo through it. If you have problems after that have S&W fix it.
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Old September 22nd, 2012, 08:33 PM   #36
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Quote:
Originally Posted by BobbyMissions View Post
We purchased the M&P 40 and 300 rounds. We went to the local range in Sierra Vista and the pistol jamed 9 times. I am not impressed with the pistol. I recommended the purchas of the pistol because of its reliability but dropping the mag when jamed and then clearning the weapon, re-inserting the mag and starting again means I am dead.

This is not good. We have another 500 rounds, we are shooting Wal-mart ammo now because they have a price break. It is S&W. We fired Federal to start with and are not pleased.

I do not want a Glock because though they are supposed to be reliable, dirt and water do not make the Glock happy.

We have not even bothered getting the S&W wet or dirty, it hangs just the way it is. It is not encouraging to have it hang at the range. In the dirt and mud, maybe.

Is there some problem we do not know about? How many have had hangs with brand new, out of the box weapons? http://mp-pistol.com/images/smilies/rant.gif

Thanks
Number one cause of this is "limp-wrist."

Quote:
Originally Posted by Crusader762 View Post
There is sometimes a break in period. Try cleaning it and running some hot ammo through it. If you have problems after that have S&W fix it.
S&W can't fix limp-wrist. The only thing "hot ammo" will do with a limp-wrist shooter is make it worse. The front sight might even dent the shooter in the head.
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Old September 23rd, 2012, 05:55 AM   #37
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Originally Posted by jasonuscg View Post
Number one cause of this is "limp-wrist."



S&W can't fix limp-wrist. The only thing "hot ammo" will do with a limp-wrist shooter is make it worse. The front sight might even dent the shooter in the head.
My wife is a chronic "Limp Wrister" she can Jam her glock 26 every round if she doesn't grip it right. Someone in the past tought her to "Cup" her free hand under her shooting hand instead wrapping it around her shooting hand and the gun. If she holds it properly she can shoot 100's of rounds jam free, with the cupped support hand it will jam "every" shot. she hasn't been able to jam the my M&P 40 "yet".

So, as others have said, Clean it, and hold it tight enough to fight some recoil.

Where are your spent cases going? back over your head? that's usually a sure sign of a loose grip. they should be flying about 3'-4' feet to your right..
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Old September 29th, 2013, 01:34 PM   #38
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I ran 225 rounds of ammo today through my M&P 9 Pro 5"(Total round count close to 2k) and had two failures to eject, which resulted in a double feed which sucks a big one because it was during competition and double feed is the most time consuming of common stoppages to clear. This is the third time I've had this issue

What is the expected life of the extractor in the M&P series? Do you think a cleaning of the extractor channel is needed at this round count? I've watched a video online of what it takes to remove the extractor and it appears to be a bear to get the factory pin out, one guy claims to have bent a punch getting it out. Any advice on removal of the factory pin?

Am I correct in saying the M&P extractor is not able to be "tuned"?

I'd at least like to get it out and clean/inspect it and see what if anything that does for me before dropping $45 on the Apex extractor via Brownells. Is anyone else running the Apex Extractor? How does it work for you?

Last edited by GlockBlock; September 29th, 2013 at 01:50 PM.
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Old September 29th, 2013, 02:24 PM   #39
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[QUOTE=GlockBlock;370779

What is the expected life of the extractor in the M&P series? ...........

I've watched a video online of what it takes to remove the extractor

Am I correct in saying the M&P extractor is not able to be "tuned"?

[/QUOTE]


Life span ~ 20,000 rnds.

Use the search function for "extractor".....discussed in detail 2 weeks ago

M&P9 Extractor Pin

The extractor is designed to be tuned by modifying the "adjustment pad" and using a "Go" / "No-Go" gauge.............

Appended is the troubleshooting list for extraction / ejection problems, decide which ones apply to your situation and correct the issue.

Photos by permission: Smith Wesson M&P Anatomy Series of Manuals



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Old September 29th, 2013, 07:59 PM   #40
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Originally Posted by Kraigster414 View Post
RollPins walking out

This issue was with preproduction M&P .40s and some very early models.



Not so. I have a brand new M&P40s and my locking block coil pin (the pin that engages the notch in the take down lever) is walking from the recoil. How do you quantify that this problem is limited to preproduction guns, just curious? Did the factory change the specs on the pin or the frame hole since? Thanks.
I believe you're referring to the Take Down Lever Retaining Wire. Have you determined how it is able to 'walk'? That wire is trapped between the frame and the locking block and exerts upward pressure on the take down lever. I'm really interested as I can't imagine how it can move short of the pistol blowing up.

Oops, didn't notice the early date on his post. My bad.

Last edited by mtnwinds; September 29th, 2013 at 08:06 PM.
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Old September 30th, 2013, 08:43 AM   #41
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At work we have a "small parts and pins" guy so I trusted him to remove the extractor retention pin from the slide this morning when I got in. He also polished the pin up a bit so I should be able to get it out myself next time. He got it out with a punch that he custom made and man was it dirty in the extractor channel. So much so that I would not be surprised if the range of motion of the extractor was being limited by the amount of carbon buildup underneath it. I will hold off on ordering the Apex part until I can get some time on this and see if the cleaning was enough. Physically the extractor itself looked fine, no excess wear or damage of any kind was noticed.

I will be disappointed if the cleaning was not enough to fix the issue. If this doesn't work I will look into the go/no-go issue. Thank you for that post. Highly informative.
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Old September 30th, 2013, 09:53 AM   #42
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........ Thank you for that post. Highly informative.

Thanks for noticing.......they always are !
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