M&P 10 a 100 yard limit ?

The M&P-10 is sensitive to any external pressure placed on the barrel from resting the non-free float handguard on something. Initial testing with my Big Smith shows a reduction of groups from 2-4 moa to 1-2 moa by replacing the factory handguards with a Lancer 5 carbon fiber free float handguard.

Sweet Mistolf, this is my evaluation as well for the BIG variations in accuracy. The MP10 is VERY sensitive to pressure changes on holding the barrel (fore end).

Too bad I can get a free float out of USA (as it seems everyone outside USA cannot be trusted).
 
Alrighty then... Put the Apex HG on last night. FYI, the barrel nut was just hand tight. Didn't have a vise block but I tightened it as best I could. The HG and low profile block went on smoothly. Good product but I noticed that you have to be very careful with the top mounting screws. The base metal bracket is a bit soft and if threading isn't precise screw will strip threads. Had a bit of trouble with one inspite of being very careful. I'll post a target and maybe a more flattering picture of the rifle following some range time.
 
Shamen,

Your going the right direction. My M&P 10 is my 10th AR pattern gun in the last 20yrs. I've owned stock and custom AR's and shot them out to 500-600 yrds. If this is your first AR your expectations may be a bit high for the stock M&P. How I came to the M&P10 was a friend at my gun club asked me to help him sight in his new M&P10. It was his first AR pattern rifle, and like you, he had lots of exp with hunting rifles. He brought several types of ammo and a new Nikon M308 scope. My conclusion after about 50 rnds that day and my adivce to him was, "great gun, but it will really shoot if you float the barrel and put in a good trigger". I really wanted one after that and just about finished getting mine how I want it. Incidently, my trigger feels much better than his did and feels to be in the range of 6lbs.

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The modularity of these guns lends itself to thier customization so much so as you see guns produced in two basic configuations:

1.) Completely Stock rifle, a blank canvas to build your dream gun. Armalite DEP 10, DPMS Oracle, S&W M&P 10

2.) Factory Accurized Guns - Fully costomized from the factory.
Armalite Super SASS, DPMS LRT SASS etc.

The stock guns will probably shoot 2moa at 200yds give or take, the custom guns will shoot sub moa at much longer distances. And remember though you can hunt with an M&P10 the AR pattern rifle is a combat weapon. You can take one out of the box, add iron sights and get combat effective accuracy and more importantly, 7.62 termiaal ballistics at combat ranges. It appears that S&W choose to tune this rifle for your heavier .308 factory ammo. If you want it to shoot it can and will. I think your free floating is going to really help. If that doesnt get you where you want to be, get your self a good trigger. Once you do those too I would be very supriesed if you aren't tickled pink with the gun by then. Best wishes and happy hunting.
 
Hornady 168 A-Max is an excellent round and my stock M&P10 shoots close to 1/2 inch with this round. Anything lighter just gives a bigger spread...the cheaper Aussie 168 grn match is anout as accurate AND CHEAPER TO PRACTICE WITH...
 
M&P 10 a 100 yard limit ?

With HPR 168grain BTHP MATCH Ammo I get 1" at 100 yds and 2" at 200 and 300 yards. I have the fixed stock Camo M&P 10 with the stock heavier Barrel and a Nikon M-308 BDC 800. I love the setup and would trust it on most Game in North America.

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Visit to the NEW CMP Talladega Marksmanship Park this past Friday.
All I can say is WOW! Friendly staff and world class facility.
Shot on Range 1 (200yrd, 300yrd, & 600yrd selectable targets with Computer Scoring)
Where else can you go to practice High Power, shoot in the shade, and not have to go down range to change targets?

Pictures:
Entrance
Range 1
Range 1 Firing Line
Lane 36, 200yrd target
Lane 36, 300yrd target
M1 Garand on 200yrd Target
AR10 on 300yrd Target
Burris Timerline 4.5-14x scope zero'd at 100yrds using the 300yrd hold-over
Using Lake City 7.62x51 XM80C ammo.
 
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With HPR 168grain BTHP MATCH Ammo I get 1" at 100 yds and 2" at 200 and 300 yards. I have the fixed stock Camo M&P 10 with the stock heavier Barrel and a Nikon M-308 BDC 800. I love the setup and would trust it on most Game in North America.

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6318465fa5fada5ae4c9c6d9e042dba5.jpg


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Sent from my iPhone using Tapatalk

I love those fixed stock Camo MP 10. It looks just like mine. Not trouble holding 1 moa 5 shot 100 and 200 yard groups. 200 yards is the longest distance I can shot at my gun club. They anticipate adding a 600 yard range in the near? future.
 
M7P 10 accuracy

Houston...we have a problem! Definitely got something a miss with the 10 shooting a group like that with those SST's. I was hoping that round would be the ticket for your 10, Shamen. If those SST's don't group well, I doubt you are going to solve that rifle's issues with other ammo. Might be time to let S&W take a look at it.
We keep offering this guy different rounds to try, he has a vertical string! what does that tell us? it usually comes from an unbalanced rifle or a heavier barrel weight with most shooters. He has mentioned that he was a bolt rifle guy and this was his first foray into AR's, well that tells me that he has a lot of catching up to do on technique as far as shooting one of these rifles. Not to take anything away from him as a bolt gun shooter, but they are usually more balanced that a semi-auto .308 battle rifle. From my experience, off a rudimentory bench rest(shoulder supported, bag on handguard), my M&P 10 will shoot 5 rounds just to the size of a quarter at 100 yards and 3" at 220yards which is the limit of my big bore range where I shoot. For this kind of rifle that is above average.....
 
We keep offering this guy different rounds to try, he has a vertical string! what does that tell us? it usually comes from an unbalanced rifle or a heavier barrel weight with most shooters. He has mentioned that he was a bolt rifle guy and this was his first foray into AR's, well that tells me that he has a lot of catching up to do on technique as far as shooting one of these rifles. Not to take anything away from him as a bolt gun shooter, but they are usually more balanced that a semi-auto .308 battle rifle. From my experience, off a rudimentory bench rest(shoulder supported, bag on handguard), my M&P 10 will shoot 5 rounds just to the size of a quarter at 100 yards and 3" at 220yards which is the limit of my big bore range where I shoot. For this kind of rifle that is above average.....

Just got mine out of the safe last weekend and checked her out before opening day of gun season. Well, she is still shooting fine I am happy to report. Now, if I can just get a nice buck to show up, I believe he will have a bad day.
 

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Hello. Thank you for including the target picture showing the vertical stringing. That picture shared a lot!

When I was developing my Remington 700 Varmint in 308 for long range shooting (800-1000 yard) I was seeing stringing like that. When I was working on loads for my Remington 700 Long Range in 7mm Remington Magnum, I saw stringing like you are seeing, with that rifle, also. This led me to doing a lot of diagnostic research. I found that it wasn't me, but the rifle barrel. It ended up that the "leade" was cut long, as a legal safeguard against "oops" issues caused by improper reloading.

I found that in order to get any degree of match accuracy from these rifles, I had to load my rounds to a cartridge over all length between 0.010" and 0.015" longer than the SAAMI standard in the reloading manuals. As a result, especially at 1000 yards this year at Camp Perry, I saw close to 1 MOA performance. My options ended up to either load long, or rebarrel. Since each rifle had less than 300 rounds down the barrel, and finances are limited, I am loading long.

My advice is to measure the leade using a Hornady/Stoney Point device to find what COA Length you need to keep the bullet a few thousandths off the rifling, and load to that length, if it will stay within acceptable magazine length.

Excessive bullet jump WILL kill the potential accuracy of any rifle.
 
Just a thought, but Nosler bullets really tightened my groups. Granted they where handloads and I had to find the right recipe.
They went just under 2 inches at 200 yards. :)
 
This is kind of a pseudo zombie thread... the OP hasn't posted since early January....

Though I am curious to his results from the Apex hand guard install.
 

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