My M&P 9mm Pro Sucks

Elliot45

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I was in the market for a 9mm with a 5" barrel or longer. I narrowed down the choices to two, the Glock 34 and the M&P Pro. Picked up the Pro on Tuesday but didn't get to shoot it until yesterday. Started with some Remington 115 grain bullets. After the first shot went off the gun jammed. Cleared it and shot two more and experienced another jam. I then switched to some Remington 124 grain bullets and they feed ok but when it got to the last shot, the slide didn't remain in a locked back position. I thought that another bullet was in the barrel but that wasn't the case. I went through 150 more rounds clearing jams every now and then with the 115 grain bullets and alternating with the 124 grains. Cleaned the gun today and went back to shoot more. Some of the 115 grains still jammed and the slide still didn't stay locked back on the last shot with the 124 grain bullets. I thought the Pro series was suppose to be better than the regular runs but that doesn't seem to be the case. Wish now that I had bought the Glock. BTW, when it did shoot, it was very accurate and I was happy about that. Anybody have any advice?
 
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Sometimes feeding issues with the gun are magazine issues.

Be an idea to strip, clean and wipe down the magazines, then reassemble.
 
Just keep shooting it. I had similar problems with my M&P Pro 9mm when it was new. Now it runs like a Swiss Watch. The gun not locking out of battery is most likely a mag problem as Llando stated above.
 
^^^^^^^^^^^^ What Hillbilly sez.

Remington 115 gr Fiocchi 115 gr Aguila 115 gr Perfecta 115 gr ZQI
ALL of these get the fat negative in my Steyr. And I have 6 mags so it isn't one mag.

WWB, Federal, Tulammo Brassmaxx, CCI Blazer, Aguila 124 gr, American Eagle,
WWB 124 gr Nato is fun if you can find it.

Remington 147 gr ran fine but I don't find much of that.
 
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That's odd. I can't recall ever seeing an M&P that didn't run like a truck (accuracy being something of a different issue). I can't imagine that changing to something other than Remington ammo would make much difference but it is worth a try. IMO, the quality of just about all factory ammo for common pistol calibers is questionable right now, except for the really high-dollar stuff.

If the gun and magazines are clean and some more shooting doesn't improve the situation, I would send it back to S&W. You shouldn't have function problems with a new M&P.
 
I can't imagine that changing to something other than Remington ammo would make much difference but it is worth a try.

Load a magazine up so you start with a few Remington and then after 3 or 4 something like CCI Blazer or Tulammo BrassMaxx. You'll see right away that Remington green box 115 gr has become an anemic round.
 
I have a new M&P 9 Performance Center that works just fine.

However, I had a similar experience as yours, with a Sig M-11 that was very disconcerting. Forums information tended to blame ammo. In the end, the problem was factory grease on the slide rails, even though I thought I had done a good job of cleaning it before going to the range the first time. It works like a champ now after I REALLY cleaned it.

I'd say give it a chance, clean it again and again.
 
Sometimes shooters suck too !!

New shooters sometimes think there doing everything right and maybe they are not . Watch some videos on a proper grip just incase the pistols ok. Maybe some limp wrist action is going on that your not aware of . I have not had any trouble with Remington express ammo and have used there 124gr for breakin but ammo companies do have bad batchs once in a while so always have a back up quality brand of ammo . I mostly prefer lawman ammo for new pistols .

You DID do a full detailed cleaning including striker pin area and mags and use of a quality lube on it areas that need lube before shooting , right ?? Not straight from the box ? NO REM OIL .

If You try again and have issues with a different ammo ask someone that looks to be a good shooter at the range to give it a go. Best way to tell if its YOU or the handgun.

Remember every one makes some poo ever now and then but m&ps tend to cycle reliably . Last resort buy some speer 124gr gold dot +P and run a box thru it . That's stuff runs in about every handgun made reliably .

If your m&p still "sucks" send it to me . I'll get it shooting just fine even if it has to go home for some love , but it still won't "suck".
 
Thanks everyone for their replies, I will keep cleaning and shooting awhile longer but so far I have shot about 300 rounds. Regarding hardluk1's reply, "shooter suck too" this isn't my first rodeo as I am not a new shooter and have been shooting since the '80s with semi-automatics made by Beretta, Colt, Browning, Springfield and S&W and I've never had a problem quite like this before. And I definitely don't have limp wrist when shooting, all 6'2, 220 lbs. is focused on not doing that. I had read that 115 grain bullets had caused other shooters problems which is why I bought the 124 grain bullets in the first place. I had neglected to mention that two boxes of 124s were American Eagle. They didn't jam but the slide didn't lock back on the last shot. Anyway, thanks for the support. As I said, the gun is very accurate and I love the way it fits my hand so I won't be giving up on it.

Regards, Jim
 
Thanks everyone for their replies, I will keep cleaning and shooting awhile longer but so far I have shot about 300 rounds. Regarding hardluk1's reply, "shooter suck too" this isn't my first rodeo as I am not a new shooter and have been shooting since the '80s with semi-automatics made by Beretta, Colt, Browning, Springfield and S&W and I've never had a problem quite like this before. And I definitely don't have limp wrist when shooting, all 6'2, 220 lbs. is focused on not doing that. I had read that 115 grain bullets had caused other shooters problems which is why I bought the 124 grain bullets in the first place. I had neglected to mention that two boxes of 124s were American Eagle. They didn't jam but the slide didn't lock back on the last shot. Anyway, thanks for the support. As I said, the gun is very accurate and I love the way it fits my hand so I won't be giving up on it.

Regards, Jim

Good luck Jim, hope it works out. Keep us posted.

PS A box of Speer GD 124+p s might also help things. But, yes, I would not expect so many jams out of the box w a Pro.
 
Jim,
I would agree that stripping and cleaning the gun and especially the magazines are a good idea. There is a lot of packing grease, not lube in guns when shipped from the factory.

I had similar symptoms with my M&P 40 FS when working down loads to simulate 9mm rounds in recoil. As the loads went down, the first symptom was failure to lock the slide on the last round. With even lighter loads, I started to experience stovepipes and cases landing on my head and sometimes ejecting right at my forehead instead of flying forcefully over my right shoulder which normally occurs with full power loads.

As an experiment, try to deliberately "limp wrist" the gun when you are shooting and see if it makes a difference. Try a couple of mags with only 2-3 rounds and see if they fail to lock back. Next, try a "death grip" with a couple of 2-3 round mags and forget about aiming, just do your best to not let the gun move from the recoil. If there is a difference in jam effects or lock-back, then it is a matter of grip/ammo. Unless your resume includes plastic guns in the past, you are probably used to heavier all-metal guns that don't flip very much. A 9mm polymer frame gun can flip more than a hefty .357 magnum revolver or 1911 shooting 200 PF 45ACP rounds if you are not ready for the impluse. Allowing the gun to flip absorbs the recoil needed to work the action and an already anemic load will often result in rounds with weak or failed ejections and not locking back the slide on the last shot.

Good luck and good shooting. The M&P Pro should be a good shooting gun.
 
elliot45 If we don't ask about limp wristing and other ammo you just never know with to many shooters today . As far as you being a season shooter . I picked up a pistol off a 62 year old match shooter with a few 100,000 rounds fired because of a handgun he had bought that would not cycle a mag full with out stove piping a round . he was p.o'd and I bought it cheap . I don't know what he did wrong , I cleaned it and lubed it and used ammo I trust and it went the next 400 rounds trouble free with out a relube and cleaning so it became a CC pistol . Round count is over 1800 rounds and still zero issues . There is a lot of junk ammo out there today . Leave the pistol with the slide locked back till you shoot it again too.

So try some hotter ammo and maybe another shooter . AE is about like the other you tried . If problems continue contact S&W for a trip home and some TLC .
 
rsrocket1, I am use to polymer guns. I own a 3.3" XDS .45 which if anything was going to have a flip, it would be that gun. I also own a S&W .380 Bodyguard and shoot a friends Glock .45 and .40. I have cleaned the gun and magazine twice and now will be the third time. Unfortunately the first two times I've fired the gun, I didn't have both magazines with me so I'm anxious to try the second one. I just recently remembered that years ago I had a feeding problem with my Colt Gold Cup and took it to a gunsmith to find out that one of the magazines was bad. I also initially had an issue with my Bodyguard and the gunsmith where I purchased it buffed out the barrel and feeding ramp and it has never had a problem since then with any make or type of .380 ammo. Anyway, I bought another 300 rounds of 124 grain bullets today and I may try some Buffalo Bore bullets or some other hot rounds as was suggested by hardluk1 to see if that helps clear up the problems. Thanks ago for everyone's help.
Regards, Jim
 
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LUBED PROPERLY

I would have to agree with what some one else said about cleaning a new gun but would add about lubing new gun.
When I got my m&p 40c/45 full size/40 shield I cleaned them thoroughly inside and out and used Otis special forces dry lube for the 7 recommended location lubricating points and worked fine with no jams but I must say that the pistols still felt like they were feeling slightly binding working the slides so I cleaned again and put very light coat of valvoline synthetic grease with moly working onto areas thouroughly which has temp rating of like -40 to 400° or 500°f and the slides works amazingly smooth now!!!So I mentioned on this forum that I used this grease and some fellas on here gave me some great advice saying not to use because it could be made with esters that eat metal.So I called valvoline and asked them if there grease was made with esters and what kind.they said it had no esters and was lithium based.I have been running it and everything looks and works perfect! I would dare to bet you have a lubrication problem but I'm no expert!
 
Also not sure if your holding pistol correctly as allowing for proper cycling?
(Stiffly enough to allow proper cycling of slide)
(Absolutely no contact with hands on slide when firing pistol)
 
Not sure about the ammo causing an issue. I load 115 grain Plated LRN over 4.7 gr. HP 38, a relatively light load, for my M&P 9MM Pro. I have over 1000 rounds and have never had any failure of any kind.
 
The M&P Pro should work fine with any ammo. I'm sorry to hear you're having trouble. I am glad you're sticking it out though. It's a great gun and I'm sure you'll get it working.
 
Yea it should work fine with most brands of ammo but then again it should work fine with any shooter too. If you have problems you have to start switch up when you run out of options . Other wise send it home for some love . But I would let another shooter give it a try too all on there own .
May be a dumb question , Did you do a plunk test with what ammo you have to besure the chambers and ammo work together ? Maybe try some of the longer 147's too. My 40sw does not like some minimum length loads all my others run fine on. 9mm don't seem to care.

Elliot45 Check out Underwood Ammo instead of BB and they ship free on holidays . Its a better class of ammo that exceeds it advertising velocity from a 4" barrel with the 9mm P+ 124gr speer and 155gr speer 40sw .
 
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