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Old 12-14-2009, 15:03   #1
Mastino177
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MP 40 failures

Just traded into a M&P40 (only had a two to a few mags through it) and took it to the range today. With Atlanta Arms range ammo it seems to have failure to feed as the rounds had issue with being fully loaded and keeping the gun out of battery. Any suggestions...I'm hoping its just ammo and/or mags. On the other hand, my RIA .45 didn't have one issue.
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Old 12-14-2009, 15:25   #2
mesteve2
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You got one good gun...

If, you want a second gun that works get another RIA or a Glock.

No big Surprise to me.

Very sorry but smiths are the best Revolvers!

So, If you want a Revolver get a smith because they will make you proud!

I failed to mention smith does not have a clue on how to build a semi-

automatic pistol.

Smith was on to something when they started copying the Glock then they just

chickened out and stopped copying the Glock!



I am sorry I wish smith could get the job done correctly the first time.

I wish they had their name on all my Glocks and made proudly in the

United States of America.

But those are the brakes!

I wish the dem-o-rats had Honor also!

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Old 12-14-2009, 17:41   #3
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I would give it a try with a more known brand of ammo. I recently switched to the m&p after carrying the glock for a lot of years. Nothing wrong with the glock, the m&p feels better and does not have those stupid finger grooves. The M&P line is beginning to give glock a run for the money in the LE circles so it can not be that bad.
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Old 12-14-2009, 18:29   #4
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m&p

+1 on trying other ammo. For what its worth, my m&p .40 hasn't had a single issue since I've had it, and I have close to 1000 rounds through it at this point.
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Old 12-14-2009, 19:40   #5
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Just worried me since I've not heard from my emails to the previous owner...not wanting to give the gun back, etc...just want to know if it has a history so I can fix it or part with it. I was thinking the ammo thing just wanted to know if there's something out there I should look for. I traded because I wanted to get into the .40 and because the gun feels GREAT...it's accurate as well.
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Old 12-14-2009, 20:08   #6
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Try some brand name ammo.
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Old 12-14-2009, 20:36   #7
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Re-reading your first post it sounds like the ammo is the root of your problem. I am stating that on you saying the gun will not go into battery. Sounds like the ammo may be a little too long.
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Old 12-15-2009, 14:12   #8
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Range ammunition, as in their own reloaded or manufactured rounds?

If it were me ... I'd clean the gun (giving attention to the extractor, chamber and the magazines), lubricate it as recommended in the manual and then try it with some good quality factory fresh ammunition made by one of the major American manufacturers.
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Old 12-15-2009, 16:53   #9
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I have 5 ~ 6,000 rounds through my M&P 9MM, ok a 9 not .40 but in that time I had one and only one issue. At a USPSA shoot I had a round that didn't extract. I pushed it out with a pencil and continued on. The Smith performed flawlessly after that.

When I broke the pistol down I saw that I was not paying enough attention to the groove in the extractor and it had gotten clogged with tar. Clogged extractor and perhaps nominal size brass. That was early on and no problems since.
On mp-pistol.com I found a .pdf that I printed out that has lube points.
I'll see if I can dig it up.

Atlanta is a reloader right?
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Old 12-16-2009, 07:20   #10
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It's almost definately ammo related. There is a possibility that the gun is three years old though hardly shot and had been sitting with loaded mags for it's entire life. I doubt that would weaken the springs much though. Good luck, bet it runs well with cheap, new ammo. I'm shooting American Eagle, Federal Walmart crap and CCI Blazer Brass & Aluminum through mine; zero problems.
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Old 12-16-2009, 09:15   #11
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Quote:
Originally Posted by Linux3 View Post
I have 5 ~ 6,000 rounds through my M&P 9MM, ok a 9 not .40 but in that time I had one and only one issue. At a USPSA shoot I had a round that didn't extract. I pushed it out with a pencil and continued on. The Smith performed flawlessly after that.

When I broke the pistol down I saw that I was not paying enough attention to the groove in the extractor and it had gotten clogged with tar. Clogged extractor and perhaps nominal size brass. That was early on and no problems since.
On mp-pistol.com I found a .pdf that I printed out that has lube points.
I'll see if I can dig it up.

Atlanta is a reloader right?
I have the M&P 9 too and never a problem with about 1200 rounds through it. Anyway, If the suggestions on this thread don't seem to solve your issue just call up S&W. They have awesome support and they don't care that you bought it used. They will fix it.

Good luck!
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Old 12-16-2009, 18:31   #12
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Atlanta Arms usually loads top quality stuff, but, it's possible he got a bad batch.

I never had any issues with my .40, and I've yet to have any issues with my Pro.
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Old 12-26-2009, 07:58   #13
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Quote:
Originally Posted by mesteve2 View Post

I failed to mention smith does not have a clue on how to build a semi-

automatic pistol.

I guess you've never tried a S&W 1911. They are some of the best semi-automatic pistols around.


Mastino177: Regarding the MP40. Try a different brand of ammo. I had an MP40 for a couple of years and never had a failure of any kind. You can find lots of information on them at www.mp-pistol.com.
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Old 12-26-2009, 08:22   #14
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Someone is giving out bad information because Smith & Wesson builds some of the finest semi auto pistols on the market today and the 3rd generation Smiths are nothing short of great and they are backed by excellent warranty and service as well. I own a Glock and two Sigs so I have other firearms to compare them to and not just something I heard somewhere, actual hands on experience.
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Old 12-26-2009, 08:28   #15
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I'm a moderator over on mp-pistol.com and while I've seen a few issues with the M&P40 I haven't seen many issues like you describe.

- What does the followers in the magazines look like? Grey or Black?

- Try different ammo.

- Inspect the ledge on the mag catch for excessive wear.
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Old 12-27-2009, 14:05   #16
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I remember reading on here about some problems with the .40 S&W glocks. Does the M&P .40s have this same problem or no...? I really can't remember exactly if it was ammo related or glock related....Does anyone remember the details?
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Old 01-01-2010, 09:15   #17
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I haven't had any failures with my full size M&P40 and it
seems quite accurate, too. My biggest complaint is the trigger reset
is not nearly as short and crisp as Glock's
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Old 01-29-2010, 06:39   #18
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Quote:
Originally Posted by disco_Stu View Post
+1 on trying other ammo. For what its worth, my m&p .40 hasn't had a single issue since I've had it, and I have close to 1000 rounds through it at this point.
My MP 40 shoots Better then both of my G22 one of which is a new Gen 4
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Old 01-30-2010, 22:36   #19
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Quote:
Originally Posted by mesteve2 View Post
If, you want a second gun that works get another RIA or a Glock.

No big Surprise to me.

Very sorry but smiths are the best Revolvers!

So, If you want a Revolver get a smith because they will make you proud!

I failed to mention smith does not have a clue on how to build a semi-

automatic pistol.

Smith was on to something when they started copying the Glock then they just

chickened out and stopped copying the Glock!



I am sorry I wish smith could get the job done correctly the first time.

I wish they had their name on all my Glocks and made proudly in the

United States of America.

But those are the brakes!

I wish the dem-o-rats had Honor also!

Slams Smith autos at every chance.
Ignores 3rd gen Smiths and positive results of M&Ps with current departments.
No longer has any credibility.
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Old 01-31-2010, 05:53   #20
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Quote:
Originally Posted by mesteve2 View Post

But those are the brakes!


Please stay in school. Education is your friend.

Regards,
Happyguy
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