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M&P Pro Accuracy


Bob Hostetter

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You are barking up the wrong tree. Fundamentally, this pistol was not conceived to be a 2" gun.

You need a high dollar 1911 or something. Although, if you put a few hundred dollars, and get lucky, you might get 2" out of a M&P.

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So does that mean there is still accuracy issues with the gun? Some of the group sizes I have heard reported wouldn't be acceptable in a $200 Hi-Point. And thanks I have a whole safe full of 1911's and 2011's but I am interested in possibly shooting Production next year.

I don't mind putting money into it as long as it responds

. I mean if a glock will shoot 2 inches, anything should be able to ... :-)

Edited by Bob Hostetter
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Thanks, not very helpful but thanks ...

As a platform, I don't think there is anything wrong with the M&P. There is no reason why it should be more or less accurate than a Glock. Even if there are issues with the M&P Pro 9, they seem to be alleviated with aftermarket barrels and a bullet/powder combo that works for that gun. My M&P Pro in 40 is decently accurate, even more accurate with my KKM 40-9 conversion and Montana Gold 124 gr jhp.

Is it a $4,000 limited class 2011 S_I? No, but at less than a quarter of the price, it makes me happy. The real surprise for me was actually my M&P Shield 40... it eats up my cheapest reloads like they're match ammo. It doesn't shoot 2" groups at 25 yards, but I'm darn proud of those 25 yard groups with my carry gun!

Edited by FightFireJay
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Before I comment, I'm going to say this ....

I'm not trying to sound like a 'smart alec', so don't take this the wrong way. I am saying this for educational reasons, and not to criticize or demean you in any way! So, with that being said, read everything I have to say word for word, and you will get the jist of it! :D

My M&P Pro 9 with a 5" KKM Precision barrel is a 1 1/2" gun at 25 yds. IF I strap it to a benchrest, and only use my index finger to pull the trigger, without touching the firearm with my palm in any way!

With that being said ...

There have been many ... many... many misconceptions about the accuracy of the M&P line out of the gate. Ninety-nine percent of shooters, prior to picking up an M&P, are trained to instinctively shoot one of 3 major pistol frames. Those being the 1911 ... Glock ... or Springfield XD.

The correct question for ANY and EVERY one of these types of queries should be .... " How well can I shoot an M&P? "

For instance, if you have been shooting Glock or XD pistols for several years you will find it hard to get used to an M&P right out of the gate! It will take time and practice to get accustomed to the trigger, reset, and handling of the firearm. A perfect example is the fact that, in the early days of the M&P, a lot of shooters were reporting 'Low Left' accuracy of the pistol, when in fact, it was only their lack of experience in shooting the M&P and it's trigger.

Again, I'm not trying to sound sarcastic in any way, but find these types of posts to be filled with a lot of misinformation. I wanted to thwart that out of the gate!

Hope that helps.

Edited by roostershooter
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With a bar sto barrel my G17 will hold 2-2.5" all day long at 25 yards. I prefer the way the M&P feels and I like the grip angle better then the glock. And I don't mind spend money for a barrel for it as long as it will perform. I prefer striker fired pistols rather then double action or I would just pick up a CZ. My concern is all the bad press, accuracy wise the platform is/was getting.i don't want to spend a lot of time on it and not getting a workable deal. I am comfortable that I can adapt to the M&P and can the most out of it, my concern was what the mechanical potential of the gun was.

If it will mechanically hold 1.5" with a KKM barrel, cool, it will do what I need it to do ... I am assuming that you have actually gotten 1.5" groups out of it and you aren't just offering more info that is ... 'Probably true" ...? Please don't misunderstand, I am not trying to criticize or demean you, but I am only looking for info that factual and repeatable.

Edited by Bob Hostetter
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If it will mechanically hold 1.5" with a KKM barrel, cool, it will do what I need it to do ... I am assuming that you have actually gotten 1.5" groups out of it and you aren't just offering more info that is ... 'Probably true" ...? Please don't misunderstand, I am not trying to criticize or demean you, but I am only looking for info that factual and repeatable.

I understand. I actually performed these tests for research in a book that I have coming out in Q2 2013. ;) For the cartridges I used 125 gr. Zero Bullets over Vihtavouri n320. This is one of my favorite bullet / powder loads.

I'll make you a deal. Buy the M&P, and put 500 rds. through it. If you don't like it after that ... I'll buy it from you!

I love M&Ps and have recently fell in love with Glock Gen 4 pistols. Other than my Glock 20SF and 29 SF I won't own a Gen 3 or prior Glock. Each has their own adjustment period for me shooting them, and have found this to be true with most shooters.

Edited by roostershooter
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I do own a 5" M&P Pro and have tested it against many handloads and factory ammo.

Based on the current data I have, it is possible for this gun to shoot 2" or under at 25 yds.

But, it is certainly more sensitive to changes and you have to develop your own loads to get there.

At longer distances 25yds or longer, I find the following guns more suited for such pursuits and less troublesome:

  1. a decent and well-built 1911 with 45ACP
  2. M&P45
  3. Beretta 92-series with stout 9mm (near max SAAMI std) or +P
  4. CZ 75 SP01 with same stout 9mm as above

Again, I am not saying it is impossible with the M&P Pro 5" (or Full-size) but it is sensitive. Of the 4 above, it is significantly easier to find accurate 45ACP handloads than 9mm ones for longer distance shooting. If IDPA, IPSC, USPSA is involved here, you need to balance between accuracy and split time, so a stout 9mm may need to be lightened.

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Having heard of some of these poor accuracy claims, i recently decided to run a test on my 9L which is about 1.5 years old (and i'm the first owner).

From a bench and resting on sandbags, i shot my normal minor load of 124gr MG JHP with 4.1 gr of N320 at 1.09" OAL. Target was 20 yards away and ignoring the two left flyers, the group is as tight as you could want, windage-wise. I always get a greater elevation spread in my groups when i shoot anything iron-sighted from a bench, especially long distance rifle, due to it being more difficult for me to consistently align traditional open top notch and blade sights.

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After a lot of testing and trying different things.

Here is my MP 9 Pro w/KKM barrel loaded with 124g RN 4.3g N320 @ 1.130 at 25 yards freestyle.

Enough said.

Trident,

How was this gun doing before the barrel change? (stock barrel)

What bullet brand are you using?

Deciding if I need to buy an aftermarket barrel for mine.

thanks

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M&P 9mm Pros, yes, the others, not that I can see.

My 9mmPro started out okay, 5" to 6" at 25 yards, went to patterns of 12" at 25 yards after about 1,000 rounds. Now, with a KKM and the 125 HAPs, I am consistently under 3" at 25 yards.

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Im needing suggestions on what barrel to buy for my 9L. Mine has a good amount of rounds through it(bought in 2008) and I want to see if another barrel improves accuracy. (even though I don't really notice any accuracy problems in the first place, better accuracy is always a plus). I shoot 147 Montana Gold. Anyone have a recommendation?

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Im needing suggestions on what barrel to buy for my 9L. Mine has a good amount of rounds through it(bought in 2008) and I want to see if another barrel improves accuracy. (even though I don't really notice any accuracy problems in the first place, better accuracy is always a plus). I shoot 147 Montana Gold. Anyone have a recommendation?

Based on 10-8 Website, Hilton Yam recommends KKM for the drop-in bbl. I have only used KKM so I do not have data to compare for Storm Lake. KKM bbl performs better than factory Gen2 bbl.

If you are looking to get a larger bbl and use a gunsmith service to fit it, then either Storm Lake or KKM will work, depending on the skills of your smith.

Edited by Art Yeo
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After a lot of testing and trying different things.

Here is my MP 9 Pro w/KKM barrel loaded with 124g RN 4.3g N320 @ 1.130 at 25 yards freestyle.

Enough said.

Trident,

How was this gun doing before the barrel change? (stock barrel)

What bullet brand are you using?

Deciding if I need to buy an aftermarket barrel for mine.

thanks

I would have your gun fired by a GM or other "expert" not your friend or fellow range mate to remove the operator from the equation. I just spent a week with SEAL T6 weapons instructors and Bill Rogers shooting over a dozen MP9's. In capable hands the MP's shoot -1". Ever gun these guns shot the Sigs, MP's, Glocks, 1911's, and a few others they all shot at, or less than, 1" regardless of ammo or set up.

You can always send it to Bill Rogers or Dawson or visit Manny Bragg or one of several others. Then, and only then, will you know without a doubt. You also can maybe even try a KKM and see if it really makes a difference for you. The cost of the KKM is cheap and if you find that you shoot the same you can always sell it for what you paid for it to the next guy who thinks he can buy tighter groups. Buy the KKM but that said, I'm confident that your OEM barrel will shoot 2" or less with the factory barrel in good condition. I'm now convinced, more than ever, it is more the indian than the arrow in most of the cases.

The above target was shot with Berries HBRN 124g but 124g MG will do the same and I bet that MG 147 would be better.

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I have an older 9mm Pro, it will not shoot, from all I have seen and read the newer guns are not having any issues. I have not sent mine back to S&W yet and I might not. It is not acceptable to shoot past 20 yards with my gun. I bought a new 5.25 in 9mm and I have shot groups under 3 inches prone at 50 yards. I am waiting for the Barstow barrel for the M&P because I really like the way the gun feels when you shoot it and it points, (for me that is) very well, on the draw I don't have to adjust any the sights come up on target perfectly.

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  • 3 weeks later...

I have a ~2010 M&P that can't hold <6" @ 25 yards with the stock barrel after ~12,000 rounds.

With a Gen4 Glock and a Jarvis fitted barrel with ~25K rounds through it, 10 round groups average ~1.5" @ 25 yards with a 124 PD JHP and 5.0 grains of N340 @1.120 OAL from a rest, which is about as good as my CZ Shadow Custom at the same distance with a slightly different load.

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I have a 9mm M&P Pro from late 2010 production and it shoots about 8" groups from a bag rest at 25 yds. My Glock and Sigs shoot about 2"-3" from the same rest. I tried different ammo and still had the same results. You can say that maybe its the old saying of its the indian not the arrow but from my internet search and from what i have seen of other more experienced shooters the problem seems to be the gun's barrel.

You can find some other posts here on the forum or also take a look at other forums or trainers websites for info. Some of the sites are below that I found while i was trying to see why my gun shot so bad.

http://10-8performance.blogspot.com/2012/06/s-m-barrels.html

http://mp-pistol.com/smith-wesson-mp-forums.php

http://www.kyledefoor.com/2011/01/answers.html

http://www.apextactical.com/blog/index.php/random-apex/first-shots-with-the-mp-barrel/

http://pistol-forum.com/showthread.php?2903-Recent-manufacture-M-amp-P-9-accuracy

Bottom line from what I have read the issue seems to be the barrel lock up but some also argue that twist rate affects the accuracy with different bullet weights.

As it is right now i have seen picture comparing early production barrels and newer barrels and they have slightly different dimesions.

Ultimately if you like the platform and don't mind having to maybe change out the barrels then go for it. If not try something else. From what I have heard S&W might change out your barrel if you send it in and they deem the accuracy to be sub par. However, I have personally not tried that.

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I shoot Glocks, and XDM's mainly, but my friends talked me in to an M&P to try out (whaaaaat? Yep I shoot em all) One guy had issues with his accuracy out of the box, so he dropped a barrel in it and it works great, the other guy's gun was dead on out of the box.

I found a new 9L for sale and bought it, I'll let you know how it does once I get it (should be here monday) I plan on gutting it anyways, but I was hoping for a decent barrel so I could wait to change that.

Now that I will have what I call the "Big 3" in polymer guns, hopefully I can pick just one and stick with it LOL

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