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#6938276 - 10/29/17 07:06 PM dirty suppressor ammo
CharlieCTx Online   content
Pro Tracker

Registered: 05/27/13
Posts: 1397
Loc: Flower Mound, TX
As I'm sure for everyone else, my suppressor really fouls/dirties remaining rounds in my mag's. Do you guys clean what's unused or just run it? My rifle objected last night to it's less than clean state, the PMAG in it had rounds a few months old from their initial soiling. I use 10's and 20's. Never had to use more than 9 on a sounder, but use 20's more often, just in case. Just thought I'd ask...
Thanks
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#6938597 - 10/29/17 09:31 PM Re: dirty suppressor ammo [Re: CharlieCTx]
Pig_Popper Online   content
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Registered: 08/16/15
Posts: 1101
Loc: Fort Worth
I bought an SLR adjustable "bleed off" gas block, I ran 20 rounds full open with no bleed off (like a standard gas block) and the magazine was thoroughly sooted.

I then ran the next 30 rounds with the bleed off feature and it was a night / day difference!
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#6938631 - 10/29/17 09:53 PM Re: dirty suppressor ammo [Re: CharlieCTx]
Toxarch Offline
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Registered: 03/09/11
Posts: 1830
Loc: Parker County
I run the dirty ammo through it. Haven't had any problems yet. There's probably a few rounds in the bottom of the mag that have been in there a long time cause I just top the mag off after a hunt.
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#6938654 - 10/29/17 10:02 PM Re: dirty suppressor ammo [Re: Toxarch]
TexFlip Online   content
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Registered: 08/18/12
Posts: 10014
Loc: Chambers County
Originally Posted By: Toxarch
I run the dirty ammo through it. Haven't had any problems yet. There's probably a few rounds in the bottom of the mag that have been in there a long time cause I just top the mag off after a hunt.

Same. Doesn't seem to affect accuracy or lethality.

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#6939279 - 10/30/17 10:17 AM Re: dirty suppressor ammo [Re: Pig_Popper]
ChadTRG42 Offline
THF Celebrity

Registered: 09/16/09
Posts: 11492
Loc: Lewisville, TX
Originally Posted By: Pig_Popper
I bought an SLR adjustable "bleed off" gas block, I ran 20 rounds full open with no bleed off (like a standard gas block) and the magazine was thoroughly sooted.

I then ran the next 30 rounds with the bleed off feature and it was a night / day difference!


^^ This. And I also shoot my 300 blk out ammo that gets heavy sooted up from the top rounds in the mag, and no issues. The sooting up is normal shooting suppressed. The adjustable gas block will help reduce this.
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#6939864 - 10/30/17 04:16 PM Re: dirty suppressor ammo [Re: CharlieCTx]
QuitShootinYoungBucks Online   content
THF Trophy Hunter

Registered: 11/01/12
Posts: 8024
Loc: Lubbock, TX
I don't have any issues shooting my 6.8 dirty, but I would at some point like to get an adjustable block for it.
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#6940038 - 10/30/17 07:05 PM Re: dirty suppressor ammo [Re: CharlieCTx]
CharlieCTx Online   content
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Registered: 05/27/13
Posts: 1397
Loc: Flower Mound, TX
Thanks for the replies... I too recently installed an SLR Adjustable Gas Block. I went to the range and got it to where I could run 4-5 through it and called it done. I then installed a Magpul UBR-2 stock which came with a shorter buffer tube. Since then, it's kind of been hit or miss on reliable feeds it seems. I chalked up Sat nights problem to dirty and too dry.

Is there a difference in the SLR Sentry 7 Adj Block is that the same as the Bleed Off block you're talking about?

I should be able to address the changes with the shorter buffer tube via adjusting the gas block, correct?
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M&P-10+AAC Cyclone - Kel-Tec RFB+Griffin Sportsman Ultra Light 300
Pulsar XQ-50
ATN OTS 336-50mm 9hz Thermal Monocular
ATN NVM14 NV Monocular

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#6941240 - 10/31/17 03:49 PM Re: dirty suppressor ammo [Re: CharlieCTx]
PappyG1 Offline
Bird Dog

Registered: 05/05/16
Posts: 260
Loc: N Texas
Sentry 7 is the series for .750 barrels. I could be wrong but the only bleed off gas block is made by Superlative Arms. https://suparms.com/

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#6941248 - 10/31/17 03:59 PM Re: dirty suppressor ammo [Re: CharlieCTx]
Pig_Popper Online   content
Pro Tracker

Registered: 08/16/15
Posts: 1101
Loc: Fort Worth
Sorry I mis typed - I have a Superlative Arms gas block not an SLR (Thanks Pappy)

Superlative Arms makes the bleed off style gas block



http://www.mountsplus.com/AR-15_Accessories/AR-15_Scope_Rings/214-DI750S.html
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#6941250 - 10/31/17 04:00 PM Re: dirty suppressor ammo [Re: CharlieCTx]
Pig_Popper Online   content
Pro Tracker

Registered: 08/16/15
Posts: 1101
Loc: Fort Worth
And yes you should be able to tune the BCG cycling with an adjustable gas block to offset buffer spring and tube changes within nominal limits.

Another area to investigate with the malfunction is if you got the new gas block on perfectly aligned to the gas port, your change of the buffer and stock may be masking this since you changed two things at the same time...



Edited by Pig_Popper (10/31/17 04:04 PM)
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#6941270 - 10/31/17 04:14 PM Re: dirty suppressor ammo [Re: CharlieCTx]
PappyG1 Offline
Bird Dog

Registered: 05/05/16
Posts: 260
Loc: N Texas
I have their piston kit on my 6.8 & it runs clean & a bit quieter with the bleed off function supressed. Got tired of cleaning dirty ammo. They also give 20% off to Military & LE.

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