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  #1  
Old 04-07-2020, 06:30 PM
Beeks Beeks is offline
 
Join Date: Sep 2014
Location: Wisconsin
Posts: 201
Default AR Service rifle?

The rules clearly state that adjustable gas blocks are not permitted. What about adjustable gas tubes or an adjustable gas key? My AR is over gassed. Im looking for options.
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  #2  
Old 04-07-2020, 11:05 PM
Gewehr43 Gewehr43 is offline
 
Join Date: Nov 2009
Location: Denver, CO
Posts: 3,272
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I'm of the approach that when I shoot competitions I don't any sort of equipment challenges.... that said.... I wouldn't use those either.

Why don't you fix the root problem here and sort out why your rifle is over gassed?
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Service Rifle.... RIP .... 1884-2015

Last edited by Gewehr43; 04-08-2020 at 10:57 AM.
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  #3  
Old 04-08-2020, 12:42 AM
la Fiere la Fiere is offline
 
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Location: Northern California - SF peninsula
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Heavier buffer?
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  #4  
Old 04-08-2020, 06:10 PM
Beeks Beeks is offline
 
Join Date: Sep 2014
Location: Wisconsin
Posts: 201
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I’ve shot this rifle two seasons now. After the first season the rubber stopper on the buffer was completely destroyed. I replaced it with an H2 buffer. Very minimal improvement there. The brass gets sooty.

So how do I figure out why my rifle is over gassed?

The barrel is a Bushmaster DCM that was purchased new at Camp Perry a few years ago. I verified that the buffer spring is correct.
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  #5  
Old 04-08-2020, 07:32 PM
Gewehr43 Gewehr43 is offline
 
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Location: Denver, CO
Posts: 3,272
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You bought just the barrel there or?
What I'm getting at is there a way the rifle is still under a warranty and simply send it back to the maker?
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Service Rifle.... RIP .... 1884-2015
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  #6  
Old 04-08-2020, 08:24 PM
cranehunter cranehunter is offline
 
Join Date: Oct 2011
Location: Monroe, WI
Posts: 952
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Look at your ammo first.
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  #7  
Old 04-09-2020, 01:17 PM
Beeks Beeks is offline
 
Join Date: Sep 2014
Location: Wisconsin
Posts: 201
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I built the rifle myself. Just the barrel was purchased from Perry. A few people I shoot with are using the same barrels with good results. I’ve tried a variety of handloads as well as complete ammo including Federal Gold Medal Match. I have not noticed any difference with ammo selection.
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  #8  
Old 04-09-2020, 03:51 PM
Gewehr43 Gewehr43 is offline
 
Join Date: Nov 2009
Location: Denver, CO
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Ok... you built it yourself...
Which Armorers course did you take prior to the build?
Where did you get the other parts for the build?

With the factory ammo what exacting happens and how did you figure out what/how the damage occurred?
What I'm asking is a detailed explanation as to what happened...
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Service Rifle.... RIP .... 1884-2015
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  #9  
Old 04-09-2020, 05:27 PM
Beeks Beeks is offline
 
Join Date: Sep 2014
Location: Wisconsin
Posts: 201
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I didn’t take a course. I just read a book. I don’t recall the name any more. The other parts were all purchased new from a variety of places. PSA bcg, la rue quad rail, Ergo f93 stock, Geissel trigger, etc.

The rifle throws brass twice as far as the rifles I shoot against. The brass comes out sooty like it’s being extracted before the pressure in the barrel is completely gone. After the first season I stripped down the rifle and found the rubber end of the buffer destroyed.
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  #10  
Old 04-09-2020, 08:32 PM
4gun-drill 4gun-drill is offline
 
Join Date: Oct 2009
Location: San Diego, Ca
Posts: 1,248
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Whats does it headspace at?
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