ammo type

yakuza

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Got a new m&p shied 9mm ...what ammo and grain should I use to break in the gun....
 
Whatever is on sale. 115gr, 124gr, 147gr, FMJ, HP, whatever. Shoot a variety of sizes and manufacturers. It really doesnt need a break in period per se'
run a few hundred through it so that you get comfortable with it. Shoot whatever you want to.
 
Not much difference as far as break-in....just find what shoots the best in your particular shield.
 
Most folks have found it works on the Wal Mart Federal 115 grain ammo. I just broke-in my M&P 9c with this ammo and once I griped the pistol firmly to counter-act any "limp wrist" syndrome, it fired several magazines without any type of a firing problem/issue.
I have also used a more expensive 124 grain ammo with the same results.
 
For now use 115 grain by most major manufacturers like Federal, Remington or Winchester but stay away from TulAmmo with a steel case. It seized in the barrel of one of my 45's I have the rest of the box and will not ever use it again.

Monarch ammo is also pretty good but try to use brass the same with Blazer, steel or aluminum casings are not a good choice. This is of course my opinion due to problems with really cheap Russian or any non American brass ammunition!
 
I always say the break in is more for the shooter than the gun. Shoot whatever you find, 115, 124, 147, FMJ first. After that choose the Defense ammo you want to use and shoot a couple of hundred rounds until you feel comfortable that the gun and shooter would not fail in a sudden and always unwanted but inevitable gunfight.
 
I like cheap 115 grain with brass casings for the range. Usually Federal or Blazer (brass).


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I would go with 124 gr just because a heavier wt. bullets seems to cycle the new recoil springs better. A couple of boxes will do fine. The night before you go to the range you may want to fully load your magazines and leave them overnight to help soften the springs. They can be a bear to load when new.
 
Buy something cheap like Aguila and have at it.

The Russian ammo is fine. If you believed all of the hate stories by the "buy American" crowd, and the overpriced ammo sellers angry at being undercut by the local Wal-mart....

You have to begin asking why it is still being imported if it's so horrible, and why Wal-mart still sells it. Also, ask why we shot so much steel cased in WWII.

One of the favorite anti-stories about the steel-cased ammo is about how it will cause your extractor to go bad prematurely. Then I read from a website that actually tested this, and how many thousands of rounds you need to put through a gun before you'd notice a difference.... then that the extractor for that gun cost something like $10.

And if the above poster had problems with the round seizing in the barrel, then the problem is the gun, or perhaps, the maintenance of it.

If your gun won't feed steel-cased ammo, then I'd be uncomfortable with that gun for SD. Go ahead and use brass/nickle if they work better. The are more slick, but again, if you've got problems with that gun feeding steel cased ammo, then it's not a reliable SD firearm, in my book.
 
I agree the Shield pretty much works with any ammo. I've used Remington 115, Walmart Federal 115, Military Ballistics 124,Aguila 124, Federal 147 HST, all with no problems. For target ammo, I generally get the cheapest I can find in brass. Currently shooting the Aguila that I bought in bulk.
 
There's nothing like the sound of brass hitting the pavement in the morning... :D
 
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