|
|
02-25-2017, 07:43 PM
|
Member
|
|
|
Join Date: Feb 2017
Posts: 3
Likes: 0
Liked 1 Time in 1 Post
|
|
barrel question
I'm still kinda new to guns, but, my question is at the bottom.
So, I took my m&p 10 out of the back of the closet to give it a look over to make sure its still clean and oiled before I get an opportunity to take it out next. I've owned it less than a year and only have maybe 300 rounds through it, as I don't currently live near any ranges or own any land. Since I had it disassembled I was giving the inside of the barrel a good look and noticed something that looked raised.. I tried running patches through it and using brushes, it's still there. At this point I'm wondering if I've ruined the barrel by not cleaning or oiling it well enough and it has subsurface rust. Finally as I'm flipping it over and taking the flash hider off to get a better look, I see the barrel stamp that reads "308 WIN 1/10 5R", which as it turns out happens to line up with these spots a little too well for me to think its coincidence..
I was hoping someone could let me know if what I'm seeing is actually the inside of the barrel warped by the barrel stamping or not, and if so how badly does that affect accuracy?
Barrel is upside down in second 2 images.
Last edited by Thrane; 03-01-2017 at 05:36 AM.
|
The Following User Likes This Post:
|
|
02-26-2017, 02:34 AM
|
Member
|
|
|
Join Date: Apr 2005
Posts: 608
Likes: 2,918
Liked 480 Times in 264 Posts
|
|
It's certainly not right, but it is near the chamber so I wouldn't worry about it.
Because the bullet still has a chance to obturate to fill the grooves before exiting the muzzle.
If it shoots a good group, I wouldn't worry about it.
I wouldn't LIKE it, though.
|
02-26-2017, 11:03 AM
|
Member
|
|
|
Join Date: Feb 2017
Posts: 3
Likes: 0
Liked 1 Time in 1 Post
|
|
Quote:
Originally Posted by Dennis
It's certainly not right, but it is near the chamber so I wouldn't worry about it.
Because the bullet still has a chance to obturate to fill the grooves before exiting the muzzle.
If it shoots a good group, I wouldn't worry about it.
I wouldn't LIKE it, though.
|
It's actually about 2-3 inches from the muzzle, not the chamber. The first image in the picture I attached is the barrel with stock flash hider removed. As for how it shoots I can't really say, because I haven't gotten a chance to put it in a bench rest, but I kind of want to now knowing about the denting.
|
02-28-2017, 04:18 PM
|
Member
|
|
|
Join Date: Feb 2017
Posts: 3
Likes: 0
Liked 1 Time in 1 Post
|
|
Seems like the original question isn't getting much traction. Can anyone with an m&p 10 check the inside of their barrel to see if they have the same denting where the barrel stamping is?
|
03-03-2017, 07:37 PM
|
Member
|
|
|
Join Date: Oct 2006
Posts: 6,633
Likes: 1,815
Liked 5,384 Times in 2,711 Posts
|
|
I've got an old US military bolt gun with a barrel that looks like 26 inches of bad road. Shoots 1 MOA. I had a .222 that shot one ragged hole. After I pulled the barrel and sectioned it, I couldn't believe how bad the pits I'd seen were.
You might try JB bore paste to clean things up and look again. It doesn't look like distortion to me but some surface condition. I read some posts about distorted bores in that area, but those rifles wouldn't group.
Last edited by WR Moore; 03-03-2017 at 07:40 PM.
|
03-03-2017, 11:54 PM
|
Member
|
|
|
Join Date: Feb 2015
Posts: 5
Likes: 0
Liked 1 Time in 1 Post
|
|
Stamping marks is exactly what it looks like. You'll not polish those marks out. You have the thin barrel and the stamping is deep, which caused this problem.
My MP10 has the unthreaded standard heavy diameter barrel and does not suffer this problem.
S&W needs to know about this problem and see your pictures, I'm sure they'll want the rifle sent in to replace the bad barrel.
I bought the S&W MP10 because they Nitrocarburize (nitride) the barrels which makes a superior metal treatment. I would not replace it with an aftermarket barrel.
Who would have thought??
|
03-04-2017, 01:55 AM
|
Member
|
|
|
Join Date: Apr 2005
Posts: 608
Likes: 2,918
Liked 480 Times in 264 Posts
|
|
My bad. Wasn't thinking .
Yeah. Send it back.
|
03-05-2017, 09:35 AM
|
Member
|
|
|
Join Date: Apr 2015
Location: NJ
Posts: 62
Likes: 8
Liked 18 Times in 13 Posts
|
|
Someone else here had the same problem. S&W replaced it
Last edited by Engine Earl; 03-05-2017 at 09:42 AM.
|
03-06-2017, 09:31 PM
|
Member
|
|
|
Join Date: Aug 2015
Location: Asheboro, NC
Posts: 12
Likes: 2
Liked 11 Times in 5 Posts
|
|
Quote:
Originally Posted by Thrane
Seems like the original question isn't getting much traction. Can anyone with an m&p 10 check the inside of their barrel to see if they have the same denting where the barrel stamping is?
|
Yup, jus looked at mine and I have the same issue. Does anyone here know if S&W gets upset when you send back a rifle with a few upgrades?
chris
|
03-06-2017, 10:38 PM
|
|
US Veteran
|
|
|
Join Date: Jan 2014
Location: Aliquippa, PA
Posts: 1,400
Likes: 351
Liked 714 Times in 476 Posts
|
|
Quote:
Originally Posted by NCchris
Yup, jus looked at mine and I have the same issue. Does anyone here know if S&W gets upset when you send back a rifle with a few upgrades?
chris
|
Word has it they void your warranty if any upgrades are done to the rifle. I think there was some sort of announcement or release from S&W a couple years back on that. You might want to check out their web site about the warranty and maybe give them a call to be sure.
|
03-08-2017, 03:04 AM
|
Member
|
|
|
Join Date: Aug 2009
Location: Seattle
Posts: 3,422
Likes: 1,000
Liked 3,595 Times in 1,521 Posts
|
|
That's too bad. Ruger removes the non stock parts, replaces them with factory, sends your aftermarket stuff back with the now fixed firearm, and bills you for the new replaced parts, minus whatever was defective that they had to fix.
|
03-09-2017, 01:21 AM
|
Member
|
|
|
Join Date: Dec 2013
Posts: 309
Likes: 1
Liked 75 Times in 66 Posts
|
|
There seems to have been a few barrels this way. Call them and send it back! I don'n think they ask too many questions about this issue from what has been said.
|
03-15-2017, 02:02 AM
|
Member
|
|
|
Join Date: Jan 2017
Posts: 6
Likes: 0
Liked 0 Times in 0 Posts
|
|
NCchris,
You might want to see a thread I posted here not long ago. Only a little bit pertains to your question of the warranty being intact after modifications, but I think I have the answer for you here:
Hope for future spare parts?
|
03-15-2017, 02:05 AM
|
Member
|
|
|
Join Date: Jan 2017
Posts: 6
Likes: 0
Liked 0 Times in 0 Posts
|
|
NCchris,
Not sure if my post is being moderated or if it was not allowed due to a link being in there (if it's just being modded, please delete this post after it's blessed off on). I posted about future spare parts for the M&P10 here in the M&P10 forum within the last 60 days and, while only a small portion of that post addresses your question about being in warranty after modifications, I believe this is a pretty good answer...straight from the horses mouth. You might want to check it out.
|
03-24-2017, 10:13 PM
|
Member
|
|
|
Join Date: Aug 2015
Location: Asheboro, NC
Posts: 12
Likes: 2
Liked 11 Times in 5 Posts
|
|
Thanks for this info and your post. S&W has my MP-10, we'll see how it goes. I couldn't put the original gas block back on because of the handguard upgrade and because I "dimpled" the barrel for the setscrews in the low profile gas block. This is no way related to my issue. I'll keep you all updated. I am optimist!
Chris
|
04-19-2017, 05:52 PM
|
Member
|
|
|
Join Date: Aug 2015
Location: Asheboro, NC
Posts: 12
Likes: 2
Liked 11 Times in 5 Posts
|
|
They replaced the barrel! No questions asked! They even re-installed my low profile gas block and Troy hand guard.
Chris
Last edited by NCchris; 04-19-2017 at 05:58 PM.
|
The Following 2 Users Like Post:
|
|
04-19-2017, 07:25 PM
|
Member
|
|
|
Join Date: Aug 2009
Location: Seattle
Posts: 3,422
Likes: 1,000
Liked 3,595 Times in 1,521 Posts
|
|
I'm really curious why they would stamp the barrel that way. Why not laser etch? No metal deformation.
I have a high end Ruger 10/22 barrel that was laser etched with the info and ser# so the dimensions weren't compromised. Actually was very reasonably priced, and came from a small shop. If HE could do it, no reason S&W can't.
Last edited by Racer X; 04-19-2017 at 08:22 PM.
|
04-20-2017, 01:50 AM
|
Member
|
|
|
Join Date: Apr 2005
Posts: 608
Likes: 2,918
Liked 480 Times in 264 Posts
|
|
NCChris; Great outcome! Now shoot for group at 100 yds and tell us the results.
|
04-29-2017, 05:26 PM
|
Member
|
|
|
Join Date: Apr 2017
Posts: 78
Likes: 15
Liked 56 Times in 24 Posts
|
|
Mine looks like glass. Rifled glass. Guess I got lucky.
|
05-04-2017, 09:17 PM
|
Member
|
|
|
Join Date: Apr 2017
Location: KCMO metro area
Posts: 5
Likes: 4
Liked 1 Time in 1 Post
|
|
great outcome.
i've now checked mine, and glad to say it does not have this issue.
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
|
|
|
|