M&P Trouble

[bad2006z71]

Resolved. Ammo issue.

 

[Hillbilly77]

I'm not a professional, but that looks like an ammo problem.
It looks like poor quality brass.

I've never seen brass do that before, and I can't believe that a slide would create enough pressure to crimp stronger brass like that.


I'd try different ammo before I did anything else.

 

[Ajaxtheknight]

I had the same problem with the exact same ammo. I emailed tulammo and the sent me a refund check. Some of the rounds are too large in diameter. Some would chamber some would not. 3 of the 100 rounds I purchased
looked just like the one you pictured before I chambered them. That is a manufacturing defect. It is most likely the ammo to blame for the feed issues. I would email or call tulammo USA they have great customer service.

 

[bad2006z71]

Resolved. ammo issue

 

[bartelt]

every gun has ammo it doesn't like. ive never seen brass do that. split, yes, but wrinkle? crazy. i'd be afraid of some worse malfunction with that ammo. what exactly that is I don't know, but i'd **** if I saw that extract from my pistol!

 

[jimmib]

thanks for this post...now I will stay away from that ammo

 

[S&W Rover]

That looks like a few pieces of ammo I made while learning to reload. That is, if the shell isn't belled correctly (e.g., the case mouth opened just enough to let the bullet in) then the force of seating the bullet will do just that: snag the brass and pull it down on one side.

This could easily happen on an autoloading machine, if the bullet is too big in diameter or the shell mouth isn't opened up enough.

Looks like might be an ammo problem, not a gun problem. Nothing wrong with using cheaper ammo, but might be worth inspecting it before loading.

 

[Rastoff]

I've seen brass/rounds that looked like that before. In every case it was like that out of the box. I don't think the slide on an M&P develops enough force to cause that.

 

[bikendan]

i bought the same ammo for my 40FS with a Storm Lake conversion barrel.
i had a couple rounds happen the same way, with the wrinkle.
i've also had a few issues with their steel case 9mm.

there's a reason their stuff is cheaper.

 

[hkmiller]

The tulamo brass max is the only ammo I have had problems with in my m&p. Will never use it again.

Sent from my SGH-T989 using Tapatalk

 

[bad2006z71]

I deleted the post by mistake. S&W emailed me a return ticket but I declined because I believe it is an ammo issue.

This was the TulaBrassmaxx in the 100rd plastic container.

I had 2 rounds like this after trying to chamber them.

There are a few brassmaxx left and this is what a few do.


This is WWB


This is Federal in the 50rd box from walmart


The Brassmaxx chambered and fired fine in a glock and XDM.
I'm going to shoot again this Sunday and will be shooting hopefully a mix of remington, wwb, and federal.

 

[bad2006z71]

Just a follow up. The M&P functioned perfectly through 400rds of winchester and Federal this past weekend. All 115gr FMJ from Wally world.

The Tula Brassmaxx in the 100rd plastic cans did start causing malfunctions in my friends Glock.

Again the 45acp BM has never caused me issues, but it appears that the 9mm may be out of spec.

PS:

I have owned 5 m&p's now and have sold them all do to the terrible triggers, the Apex AEK is the trigger that should come on the M&P's stock. It made beyond a night and day difference in the way the gun shot and felt for me. This pro is now a keeper and is making me want a 5" gun.