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 ProlificARProspect
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Joined: Jul 2008  CA, USA
 Posts: 506 Feedback: 100% (57) |
Posted: 2/15/2012 2:10:04 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT I have a Bushmaster MOE 308 Mid-length 1/10 7.62x51mm rifle, it has seen less than 1000 rounds. Ive mostly used Federal American Eagle 150gr FMJBT AE308D(400 rds), (200) rounds of Winchester 7.62mm 147 gr. FMJ Q3130, (200) rounds of AB22 7.62mm DM 111 Weichken German DAG... Without any problems, No FTF or FTE, BUT I did notice some odd wear in my bolt when cleaning my rifle. Is this normal wear on a DPMS pattern 308 bolt? Note this is my first DPMS pattern 308 and look forward for your input, thanks. ETA: I'm using Pmags and Bushmaster steel mag. 
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Posted: 2/15/2012 3:01:08 PM
I'm going to say no. Shouldn't damage the lugs like that.
My guess is that it is a camming or gas issue. |
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Posted: 2/15/2012 3:19:27 PM
[Last Edit: 2/15/2012 3:20:54 PM by RuLins05]
It almost looks like the rifle is trying to cycle too quickly after the round goes off before case swelling subsides. Upgrade to a Slash buffer to slow it down and clean that rifle sir!
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TaylorWSO
Kool-aid
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Joined: Apr 2004 USA
Posts: 12365 Feedback: 100% (9) Link To This Post |
Posted: 2/15/2012 3:27:32 PM
No, call dpms and have them fix the rifle before it kabooms.
DPMS has had a problem with the bolts before, maybe you have one of them call dpms |
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ProlificARProspect
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Joined: Jul 2008 CA, USA
Posts: 507 Feedback: 100% (57) Link To This Post |
Posted: 2/15/2012 3:49:37 PM
Originally Posted By TaylorWSO:
No, call dpms and have them fix the rifle before it kabooms. DPMS has had a problem with the bolts before, maybe you have one of them call dpms thanks for the input guys, i had a felling this was off. I contacted Bushmaster via email lets see what they have to say about this, if it's a potential kaboom I'm sure they will know about it and fix it. |
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ProlificARProspect
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Joined: Jul 2008 CA, USA
Posts: 508 Feedback: 100% (57) Link To This Post |
Posted: 2/15/2012 3:53:22 PM
Originally Posted By RuLins05:
It almost looks like the rifle is trying to cycle too quickly after the round goes off before case swelling subsides. Upgrade to a Slash buffer to slow it down and clean that rifle sir! LOL! ya this prior to me cleaning the rifle, it's now clean 
here is a pic of the brass  |
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ProlificARProspect
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Joined: Jul 2008 CA, USA
Posts: 509 Feedback: 100% (57) Link To This Post |
Posted: 2/15/2012 4:09:57 PM
I got in contact with Bushmaster Customer Service! they are on top of this and sending me a RMA.
thanks guys for your input  |
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Posted: 2/16/2012 1:47:38 AM
Let us know what they say and do!!!
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Posted: 2/17/2012 11:00:53 PM
defently looks like abnormal wear.
imo...to tight of tolerance from bolt to barrel?...but then again....Im not a g-smith. good move on calling bushmaster...but I have to ask...why a dpms bolt on a bushy |
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LRRPF52
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Joined: Oct 2011 UT, USA
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Posted: 2/18/2012 2:35:43 PM
[Last Edit: 3/23/2012 12:56:54 PM by LRRPF52]
There is absolutely nothing wrong with your bolt from what I can see in the pics you posted. My bolts have looked the same way, and I just checked mine. It has the exact same marks. It's called normal wear of the manganese phosphate surface (Parkerization).
Sending it to Bushmaster will be a total waste of your and their time, unless there are some other issues not mentioned. Also, your gun doesn't need to be cleaned. It looks well-lubed to me. Continue to shoot it as such and enjoy. Brass looks fine too. Not sure why the comments about this appearing to be jacked up, other than the high resolution of modern digital cameras, and large screen computers making something out of nothing. |
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TaylorWSO
Kool-aid
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Joined: Apr 2004 USA
Posts: 12395 Feedback: 100% (9) Link To This Post |
Posted: 2/18/2012 4:18:38 PM
Originally Posted By LRRPF52: There is absolutely nothing wrong with your bolt from what I can see in the pics you posted. My bolts have looked the same way, and I just checked mine. It has the exact same marks. It's called normal wear of the manganese phosphate surface (Parkerization). Sending it to Bushmaster will be a total waste of your and their time, unless there are some other issues not mentioned. Also, your gun doesn't need to be cleaned. It looks well-lubed to me. Continue to shoot it as such and enjoy. Brass looks fine too. Not sure why the comments about this appearing to be jacked up, other than the high resolution of modern digital cameras, and large screen computers making something out of nothing. yet the missing corners on the lugs, nothing to worry about here.  |
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LRRPF52
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Joined: Oct 2011 UT, USA
Posts: 1032 Feedback: 100% (3) Link To This Post |
Posted: 2/18/2012 4:47:25 PM
Originally Posted By TaylorWSO:
Originally Posted By LRRPF52:
There is absolutely nothing wrong with your bolt from what I can see in the pics you posted. My bolts have looked the same way, and I just checked mine. It has the exact same marks. It's called normal wear of the manganese phosphate surface (Parkerization). Sending it to Bushmaster will be a total waste of your and their time, unless there are some other issues not mentioned. Also, your gun doesn't need to be cleaned. It looks well-lubed to me. Continue to shoot it as such and enjoy. Brass looks fine too. Not sure why the comments about this appearing to be jacked up, other than the high resolution of modern digital cameras, and large screen computers making something out of nothing. yet the missing corners on the lugs, nothing to worry about here.
I stand corrected. I was looking at the normal wear on the engagement surfaces of the lugs, plus I'm sick and ornery. Sorry gents. Those "dents" do in fact look pretty bad. |
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Posted: 2/18/2012 5:15:12 PM
[Last Edit: 2/18/2012 5:16:08 PM by faawrenchbndr]
Nevermind,.........I agree bolt needs attention!
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ProlificARProspect
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Joined: Jul 2008 CA, USA
Posts: 513 Feedback: 100% (57) Link To This Post |
Posted: 2/24/2012 3:34:35 PM
Originally Posted By maverick698869:
Let us know what they say and do!!! So far the Bushmaster/Remington Arms/Cyberus Group etc  Customer Service has been good. They received my Bushmaster MOE 308 on Weds and emailed me a link for up to date 24/7 status updates, to this date they haven't worked on my rifle yet, so will see what they say. |
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Posted: 2/29/2012 7:29:25 PM
I also have a Bushmaster .308 Moe. Mine has less than 500 rounds fired. All ammo cycled thru the rifle has been either Federal Lake City or named brand soft point hunting ammo. The the leading edges of the bolt on my rifle has similar wear pattern. Will follow this thread to see what Bushmaster has to say.
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ProlificARProspect
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Joined: Jul 2008 CA, USA
Posts: 518 Feedback: 100% (57) Link To This Post |
Posted: 3/1/2012 4:37:00 PM
To this date Bushmaster has not looked at my rifle. I called to see what's going on, spoke to a CS rep, he inform me that it should be 8-10 weeks not including travel time
 .The initial ETA they gave me was 1 week once it got to the repair facility.
Kinda seems like they are back paddling.... So will wait and see when a qualified GS diagnoses the problem. |
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Slash
Life is Garand
Dealer
Joined: Mar 2003 OH, USA
Posts: 13119 Feedback: 100% (160) Link To This Post |
Posted: 3/1/2012 5:40:51 PM
[Last Edit: 3/1/2012 5:41:14 PM by Slash]
Originally Posted By ProlificARProspect:
To this date Bushmaster has not looked at my rifle. I called to see what's going on, spoke to a CS rep, he inform me that it should be 8-10 weeks not including travel time .The initial ETA they gave me was 1 week once it got to the repair facility. Surprise, surprise, surprise.  |
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Posted: 3/7/2012 7:46:23 PM
[Last Edit: 3/7/2012 7:47:59 PM by ed308]
Finally got around to inspecting the bolt on my Bushmaster 308.
Mine has a similar wear pattern as the one in the photo. But not as much wear on my bolt since I've only put around 350 rounds down the pipe. I'm thinking normal wear. |
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Posted: 3/8/2012 1:04:31 AM
Has anyone noticed this type of wear on DPMS bolts?
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Posted: 3/8/2012 1:30:43 AM
I can.put a pic up tomorrow but mine has faint marks just like the OP. I only have about 200 rounds down the tube though.
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Posted: 3/8/2012 1:31:38 AM
Originally Posted By ed308:
Finally got around to inspecting the bolt on my Bushmaster 308. Mine has a similar wear pattern as the one in the photo. But not as much wear on my bolt since I've only put around 350 rounds down the pipe. I'm thinking normal wear. I don't know- I have near 1800 rounds thru my BM 308 ORC. The bolt lugs are pretty clean, no chines getting cut into them. Save the old bolt and look to them after shooting for wear comparisons. |
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Posted: 3/8/2012 1:41:39 AM
[Last Edit: 3/8/2012 1:42:26 AM by pca]
I have examined a couple of rifles... 2k+ rounds... no cuts in the lugs... some polishing. |
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Posted: 3/8/2012 2:22:42 AM
Mine is the .308 Moe. I would post pics if I could figure out how to do.
Just to be clear, we are concerned with the wear pattern at the tip of leading edge of the lug? I take it the polishing of the on backside of the lug in normal. Mine has a limited amount of polishing but tip is shaved off as in the OP's pics. I've always heard these rifles are over gassed. But not sure if that is a factor. |
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Posted: 3/8/2012 4:38:58 AM
This is out of my Maten build. DPMS barrel extension and bolt. like i said before only about 200 rounds down the barrel.
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Posted: 3/8/2012 6:53:47 AM
[Last Edit: 3/8/2012 7:18:39 AM by REARSPROCKET]
Kind of looks like they are unlocking early ? Maybe an adjustable gas block would stop it ? I'm wondering if the gas port size is causing this and or soft bolts?
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Posted: 3/8/2012 1:56:35 PM
That's what my bolt looks like.
Cut on the edge with slight polishing on the flat surface of the lug. |
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