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Smith & Wesson M&P Pistols All Variants of the Smith & Wesson M&P Auto Series


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Old 11-23-2013, 04:27 PM
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Default M&P22. Is this Normal?

Bought this a little over a month ago. First 600 rds were CCI mini mags. Never had any issues. Switched to CCI standard velocity and started to get ftf and fte. One time a combination of both in about twenty rds after the end of a two hundred rd session.
Last Thursday I picked up some Federal 40 gr 1200 fps target grade ammo. Went to the range and ran thru 225 rds. I had four ftf and 1 fte. This happened about halfway thru.
I clean my gun after each range use (about 200 rds) with Hoppes solvent & lube with Hoppes gun oil. I've also taken apart the mags and wiped them (never lubed them though) Last cleaning I used Froglube. Same results.
The errors occur with two different mags. So far I've shot about 1100 rds thru the gun.
I've read dozens of different posts about flawless shooting with the .22. Am I to expect 4-5 errors per 200 rds or is something amiss.
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Old 11-23-2013, 04:33 PM
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Mini-Mags are hotter, thus better cycling of the action. The M&P22 and the Walther P-22 have stronger recoil springs than the other brands, especially when new and have poor cycling with weaker ammo. The result is "short cycling" in which the slide barely goes rearward enough to eject the used round, but not far enough back to pick up a new round. When shooting hotter ammo, they eject out several feet, where with the weaker ammo, it barely makes it out of the gun. My M&P22 and Walther P-22 are no different than yours. Use hotter ammo like Mini-Mags or Remington Golden, which is dirtier but cycles well. In time, as your spring gets used more, it may cycle with the weaker ammo, which includes Federal, despite their claims on the box of a higher velocity. I chronographed them to averaged just under 1000 fps, where the Mini-Mags and Remington Goldens averaged 1125fps from my M&P
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Last edited by agksimon; 11-23-2013 at 04:39 PM.
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Old 11-23-2013, 04:55 PM
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OK. Thanks. I'll just put up with it until it breaks in. Guess if I would have started with lower velocity ammo, I would have gotten the failures sooner.
I do, however, have one more question that I forgot to post above.
I seem to be getting much more wear on one side of the gun. Is that also normal? There is hardly any wear on the other side. Sorry for rookie questions. Many moons since I shot.
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Old 11-23-2013, 05:07 PM
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Quote:
Originally Posted by Mydogmax View Post
OK. Thanks. I'll just put up with it until it breaks in. Guess if I would have started with lower velocity ammo, I would have gotten the failures sooner.
I do, however, have one more question that I forgot to post above.
I seem to be getting much more wear on one side of the gun. Is that also normal? There is hardly any wear on the other side. Sorry for rookie questions. Many moons since I shot.
Attachment 133184
Attachment 133185
1. Put a light grease on the rails and the bottom of the slide that cocks the hammer.

2. When you use underpowered ammo and end up on an empty chamber, you are dry firing the gun and S&W says right in their instructions not to dry fire the M&P22. It can damage the breach and/or break the firing pin. Sell the ammo to a Ruger or Buckmark owner and buy the ammo that will allow your gun to function properly.
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Last edited by agksimon; 11-23-2013 at 05:38 PM.
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Old 11-23-2013, 05:10 PM
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With MiniMags being hard to find and pricey when you can find them I grabbed some Aguila Super Max (1700 fps) and it makes the M&P22 work great. Never a single failure in 3k-4k rounds when I get multiple failures with lower velocity stiff all the time. Trade off is that it is a little dirtier and less accurate, but it is fun to shoot and no failures.
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Old 11-23-2013, 06:44 PM
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I run the CCI standard velocity in my M&P 22 with no issues. 1500 rounds through it.
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Old 11-23-2013, 06:46 PM
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Remember .22 cal ammo is not as reliable as center fire pistol ammo. Failure to feed or eject are not uncommon
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Old 11-23-2013, 08:14 PM
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----------------------------

Last edited by AR-Getsome; 11-25-2013 at 08:57 PM.
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Old 11-23-2013, 08:15 PM
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Quote:
Originally Posted by Mydogmax View Post
OK. Thanks. I'll just put up with it until it breaks in. Guess if I would have started with lower velocity ammo, I would have gotten the failures sooner.
I do, however, have one more question that I forgot to post above.
I seem to be getting much more wear on one side of the gun. Is that also normal? There is hardly any wear on the other side. Sorry for rookie questions. Many moons since I shot.
Attachment 133184
Attachment 133185
My 2 M&P 22 pistols have the exact same wear. I have a few thousand rounds through them. As far as I know its normal wear. My friend's look the same too.
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Old 11-23-2013, 08:48 PM
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As you can see , everyone has their own experience. ,In my M&P 22 ( 2500 rnds at this time), I can run CCI standard vol. with no problems, also Aguilla standard vol
In addition to a good cleaning, try a small dab of gun grease on the rear of the slide rails. If your gun is like mine, you will see wear marks by now, that's the spot .
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Old 11-24-2013, 03:42 AM
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Thanks for all the help. Just wasn't sure what was considered the norm.
I really like the gun. Very comfortable in my hand. I'll continue to train and then get the 9mm in a few months.
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Old 11-24-2013, 10:47 AM
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I just must be lucky. I have had ZERO issues with mine and it eats about anything I feed it. Clean after every shooting and Frog Lube has always been a standard.
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Old 11-24-2013, 08:17 PM
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M&P22. Is this Normal?  
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Ditto. Ditto.

Standard velocity .22 and target is made to stay just under the speed of sound from a rifle barrel to optimize accuracy. Speed of sound is appx 1090 fps, (depends on air pressure, humidity, etc) and standard/target ammo is about 1070-1080 fps depending upon brand. The bullets develop instability from the pressure waves during the transition from supersonic to subsonic speeds. The same thing happens in centerfire rounds, but usually isn't a problem until 1000 yds or longer. It is especially a challenge for Palma centerfire matches which requires a .308 Winchester (7.62x 52) and a maximum bullet weight of 156 gr. These want to go subsonic right at 1000 yards.

High velocity .22 is about 1250 fps from a rifle barrel, for a standard 40 gr bullet. Faster, of course for the lighter bullets. This difference in velocity is enough to produce a greater recoil which will reliably cycle the handgun. (Standard velocity rounds will not reliably cycle auto loading rifles either.) On the other hand, target handguns are designed to operate with standard velocity ammo--for increased accuracy--and using high velocity rounds can stress them unnecessarily.

I've seen but never shot the M&P 22, but it wasn't designed for match competition. Use high velocity ammo and you should have very few problems. The caveat here is that some import and off brands may lack the quality control to optimize reliability.

Your M&P 22 may someday get to where it will reliably cycle standard velocity or it may not. My advice is to save the standard velocity ammo for your rifles (hunting) where it will be a lot more accurate than the high velocity. I realize that all .22 ammo is hard to find these days, but I've not seen significant differences in price or availability for standard vs high velocity. At least not on gunbot.net and ammoseek.com
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Old 11-25-2013, 01:57 PM
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Coated stuff, hi-velocity works best. See this thread: M&P 22 preferred ammo
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