THE NEW GUY 113 Posted August 5, 2015 Report Share Posted August 5, 2015 I recently purchased a new Smith and Wesson M P 10 in 308. It will not run Fedral lake city 7.62 x 51 or MKE 7.62 x 51 worth a darn short strokes might as well be a bolt action . My Saiga will spit it out all day . I purchased the S&W MP 10 after reading a review at buds gun shop somebody had put 500 round of Mke thru his .It will run the heck out of PMC 308b and hornady fast as you can pull the trigger , I haven't tried anything else yet . I probably should have went with the Sig 716 but my kids like to eat , but it is a good excuse to buy some more ammo . That's a good excuse to tell the wife right ? The gun doe shoot good running 308 ammo . it does run LIKE A SCALDED DOG with the Pmc 308B from SG. The only part I hate is that it wont run my mil-surplus . The gun shoots better than I do 1 inch moa at 100 yards with the pmc . Quote Link to post Share on other sites
ChileRelleno 7,071 Posted August 5, 2015 Report Share Posted August 5, 2015 Thats not right at all. Finicky accuracy with different ammo is one thing. But I'd be on the phone with S&W about warranty work. It should eat anything like a starving Somali child. Tell them if you wanted a bolt action you would've bought a new Ruger Precision. 3 Quote Link to post Share on other sites
ChileRelleno 7,071 Posted August 5, 2015 Report Share Posted August 5, 2015 Double check warranty about using milsurp ammo. Quote Link to post Share on other sites
BeatTheTunaUp 65 Posted August 5, 2015 Report Share Posted August 5, 2015 I thought I had a short stroke issue on an ar pistol build. It was actually the opposite. The extractor was slipping off the rim. I slowed the action with a heavier buffer and installed a bravo company extractor spring in my bolt. 100% reliable now. 2 Quote Link to post Share on other sites
Spacehog 2,218 Posted August 6, 2015 Report Share Posted August 6, 2015 AR's are too easy to work on with plenty of aftermarket support to give up on it because it won't run certain ammo. MKE is not underpowered so it should not be short stroking. To check load one round in the mag, chamber and fire, if the bolt locked back on the empty mag, then it is more likely bolt bounce and using a heavier buffer like an H2 or H3 may correct the problem. If it is not locking back, I would check to make sure the gas block is properly aligned and secured with the set screws. After that check that the gas tube is free and clear. I definitely wouldn't give up on it. 2 Quote Link to post Share on other sites
ChileRelleno 7,071 Posted August 6, 2015 Report Share Posted August 6, 2015 Darek, screw having to 'troubleshoot' a new S&W. I wouldn't do anything to a new S&W AR10 besides send it back and tell them to make it right or send me a new one that does run right. This isn't a rifle I'd be expecting to have to tinker with or modify to make it work properly. The only things I'd want to change might be things like, trigger, comp/brake, iron sights or furniture. 3 Quote Link to post Share on other sites
THE NEW GUY 113 Posted August 6, 2015 Author Report Share Posted August 6, 2015 (edited) I will be contacting Smith and Wesson next week . The owners manual says it should run anything in 7.62 x 51 with the Nato headstamp . I believe Lake City has this but I will have to dig in the closet again to make sure ,the manual says commercial manufacturers , Hornady ,Remington , Olin /Winchester , Pmc and Federal. I will be out of town this weekend so it will be Monday before I can contact them . I would like to find a box of American Eagle in 7.62 x 51 and a box of PPU in 308 to see how it runs . I expect it to run the Federal Lake City . Edited August 6, 2015 by THE NEW GUY Quote Link to post Share on other sites
Long Shot 1,287 Posted August 6, 2015 Report Share Posted August 6, 2015 Yeah, that gun should absolutely run any factory loaded 308 or 7.62x51 That's a warranty issue Fo Sho. S&W will do you right. Quote Link to post Share on other sites
Spacehog 2,218 Posted August 6, 2015 Report Share Posted August 6, 2015 (edited) Darek, screw having to 'troubleshoot' a new S&W. I wouldn't do anything to a new S&W AR10 besides send it back and tell them to make it right or send me a new one that does run right. This isn't a rifle I'd be expecting to have to tinker with or modify to make it work properly. The only things I'd want to change might be things like, trigger, comp/brake, iron sights or furniture. Understood Chile, and I agree you shouldn't have to replace parts on a new rifle to make it work. However it may be something very simple such as a improperly seated gas block or obstruction in the gas tube that the Op can quickly fix himself without additional expense instead of sending the gun in for warranty work. If it requires new parts to run, then I agree, I would have S&W fix it on their own dime. But before that, I would definitely do some basic troubleshooting to see if I could determine what the issue was. Edited August 6, 2015 by Spacehog 1 Quote Link to post Share on other sites
G O B 3,516 Posted August 6, 2015 Report Share Posted August 6, 2015 No matter what the issue is , for that $$$$$$ the damn thing should WORK or be REPLACED! 1 Quote Link to post Share on other sites
ChileRelleno 7,071 Posted August 6, 2015 Report Share Posted August 6, 2015 My biggest concern would be tearing into it trying to find the problem, and then have them void the warranty if I couldn't find a simple solution. Quote Link to post Share on other sites
VR762Shooter 838 Posted August 6, 2015 Report Share Posted August 6, 2015 My biggest concern would be tearing into it trying to find the problem, and then have them void the warranty if I couldn't find a simple solution. This. Most any company will be happy to do the warranty work on something that isn't right. Give them an out by frigging with something and they will take it. Contact them ASAP and have them resolve it for you. If they don't fix it, never buy from them again. Quote Link to post Share on other sites
THE NEW GUY 113 Posted August 6, 2015 Author Report Share Posted August 6, 2015 (edited) I usually run 150 grain Hornady 150 grain sst , It ran it perfect also ran pmc 308b perfect . I tried the ZQI and it wouldn't cycle it, so I went and dug some Lake city out and it wouldn't run that , It would shoot one round eject it and would not load the next had to take out the mag pick up the shell put it back in pull back on the charging handle fire and repeat. I thought the MKE might be underpowered , the warranty says it should run anything with the nato cross. I haven't dug in the closet cause its a bitch to get out , to see if it has the nato cross . After that I put a 25 round p mag back in and it ran it as fast as I could pull the trigger. I am going to Piegon forge today and I am going to stop at a few gun stores and see if I can find some 7.62 x 51 just to try Sunday when I get back. The model number is 811311 it has a five star review one review says he ran 500 rounds of ZQ1 with zero problems , check OUT THE REVIEWS AT BUDS GUN SHOP S&W MP 10 MODEL 811311 I DO INTEND ON CONTACTING THEM MONDAY . IT HAS 10 REVIEWS WIH ALL 5 STARS . That was my reason for purchasing . Edited August 6, 2015 by THE NEW GUY Quote Link to post Share on other sites
Spacehog 2,218 Posted August 6, 2015 Report Share Posted August 6, 2015 OK. I surrender. Send it back and let S&W fix it. No reason to justify or apologize for buying the S&W New Guy it is a solid firearm from a solid company. Hope they make it right for ya. 2 Quote Link to post Share on other sites
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