I concur - absolutely correct advice.
On average how many rounds to break in an M&P 9
- Thread starter Acrimsontide
- Start date
I concur - absolutely correct advice.
RalphMP9FS
Member
I was at the range Friday and today I'm cleaning my M&P 9FS and my new Taurus 9mm PT111 G2. My M&P has a bunch of tiny brass speckles from the casings in the slide and lower assembly, and my new Taurus has none that I could see. I mean come on S&W and step up your quality control to smooth out the rough areas. My M&P and Taurus ran fine, but to see a new Taurus that cost $240 run cleaner is very alarming.
Fastbolt
Member
It's all conjecture (even if based upon different levels of experience) until the specific pistol is examined for problems and confirmed to be in normal operating condition.
Presuming the owner isn't "new" to plastic framed 9mm pistols being used with inexpensive (meaning maybe borderline sufficiently powered ammo) ... and the gun AND magazines have been cleaned (the gun properly lubed and the mags left dry) ...
Might be as simple as a recoil spring assembly (RSA) that needs replacing, or a tight extractor. The owner can replace the RSA, but the factory needs to check the extractor for replacement. Customer service might send you a new RSA upon request, if you call and explain your experience, thus far.
They might also simply want to see the gun, to check for something that slipped through their production and 15-rd test-fire process.
As an armorer, I've seen different firearms that required repair or corrective action even when brand new, and which ran fine afterward. I've used and carried many a repaired brand new & used guns without qualms. (Once normal function is confirmed.
If it were mine, I'd run some good quality 124gr (standard pressure or +P) and some 147gr loads through it, made by one or another of the major American ammo companies, during my familiarization shooting. Not a few folks have observed that the 115gr bargain-priced 9mm ammo seems to run toward the low end of the normal power range, especially with the huge rush to get ammo out the door. Reduced slide run/velocity can lend itself to failures-to-feed. As RSA's start to soften they may become more tolerant of lighter recoiling loads.
Just some thoughts.
Presuming the owner isn't "new" to plastic framed 9mm pistols being used with inexpensive (meaning maybe borderline sufficiently powered ammo) ... and the gun AND magazines have been cleaned (the gun properly lubed and the mags left dry) ...
Might be as simple as a recoil spring assembly (RSA) that needs replacing, or a tight extractor. The owner can replace the RSA, but the factory needs to check the extractor for replacement. Customer service might send you a new RSA upon request, if you call and explain your experience, thus far.
They might also simply want to see the gun, to check for something that slipped through their production and 15-rd test-fire process.
As an armorer, I've seen different firearms that required repair or corrective action even when brand new, and which ran fine afterward. I've used and carried many a repaired brand new & used guns without qualms. (Once normal function is confirmed.
If it were mine, I'd run some good quality 124gr (standard pressure or +P) and some 147gr loads through it, made by one or another of the major American ammo companies, during my familiarization shooting. Not a few folks have observed that the 115gr bargain-priced 9mm ammo seems to run toward the low end of the normal power range, especially with the huge rush to get ammo out the door. Reduced slide run/velocity can lend itself to failures-to-feed. As RSA's start to soften they may become more tolerant of lighter recoiling loads.
Just some thoughts.
Last edited:
OP
Acrimsontide
Member
- Joined
- Aug 2, 2014
- Messages
- 7
- Reaction score
- 5
Just to give an update, I took the M&P 9 back to the range today and fired another 150 rounds. First 100 rounds of Federal 124 grain and then 50 rounds of 115 Winchester and the pistol performed flawlessly. I ran 2 full mags through it rapid fire with the 115 grain ammo as quickly as I could fire, drop one mag and insert the second mag and fire it. No issues at all. Possibly it was an issue with the previous ammo or the pistol just didn't like that ammo. Over the next week or so I will put several hundred more rounds through it and see how it goes. Again, thanks to everyone that responded.
Fastbolt
Member
Glad to hear it. Rather sounds like a lower power ammo/new RSA spring condition. That sort of thing can often resolve itself with either harder recoiling ammo, or just more rounds-fired to get the stiffness out of the brand new spring.
It's the occasional shooter issues or any actual gun issue (tightly fitted extractor or too-heavy spring) that can take some extra attention and time.
It's the occasional shooter issues or any actual gun issue (tightly fitted extractor or too-heavy spring) that can take some extra attention and time.
NoogMan
Member
Great to hear! The fix for both of my Shields was shooting a crapload of 124 grain also.....they now chew up 115 without issues.
Keep us updated!
If this is ever going to be your carry gun I'd look at upgrading the extractor to one of the Apex Fail Resistant Extractors. I had the same issues with my M&P 45. It was destined for the "Range Only" pile till my local gunsmith guru gave it a thorough going over. For some reason the stock M&P extractors are really hit and miss for reliability. The stock extractor was pinching the shell into the breach face coming up out of the mag.After the Apex extractor installation it's been 100% reliable with all ammo. It was sad to see this kinda of issue come out of the S&W shop, but I guess they're having their problems too.
-Mike
-Mike
Mike, surprised to hear this. I only own 10 M&P's and have not seen nor heard of this as an issue..
Similar threads
