Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
11/9/2009 2:05:03 PM EDT
Well i made the mistake on shooting some Brown Bear that i had got for free and the residuel that it leaves seems to be hunting me or maybe it is something else. in course of hammer drills i keep getting a stuck casing and on even one the case split in half and the round that was loading behind it chambered in it?

Im thinking its sticking because of the garbage that is probaly still left in it or maybe a burr in it which i dont see or another buddy thinks the head spacing maybe off?

what is everyones opinon on this?
11/9/2009 2:16:36 PM EDT
[#1]
Could be headspace, could be an out of spec chamber.





Need more details about the rifle.



Not a lacquer issue.

11/9/2009 2:19:39 PM EDT
[#2]
Have you cleaned it with a good powder solvent and bore brush. Were you having problems before? Brown Bear is dirty but I have been shooting Wolf for the last 1200 rounds and haven't had a problem. I would narrow it down to not being cleaned or an extractor problem. Do you have the blue or black insert in your extractor?
11/9/2009 2:24:41 PM EDT
[#3]
POF upper its not a extractor thats what i thought i ran a different bolt and it started to do the same thing and it just started to happen after 200 rounds or so doing hammer drills
11/9/2009 2:35:30 PM EDT
[#4]
Could be headspacing or an out of spec chamber, but also could be cleaning. Have you cleaned it? Is this a new upper and the first 200 rounds through it was causing this?
11/9/2009 2:41:22 PM EDT
[#5]
no the upper probaly has about 4k of round through it started to happen right around after 200 rounds so i didnt get to clean it yet but im going to clean it first and see if it does it again
11/9/2009 2:43:11 PM EDT
[#6]
also if it is out of spec what is the easiest way to correct it and is there a way to check with out a head space guage?
11/9/2009 2:45:43 PM EDT
[#7]
Are you ever switching between shooting steel cased and brass cased?
11/9/2009 2:49:38 PM EDT
[#8]
Well if you have had 4k rounds through it and it ran through it I would say cleaning would prob solve it. Russian stuff is dirty but I have never had any problem out of mine shooting it. The only way I know of checking headspace is by using a go or no go gauge. I don't have much experience with headspacing so I really can't help you there but if it is out of spec I would reccomend taking it to a smith.
11/9/2009 2:50:08 PM EDT
[#9]
Quoted:
Are you ever switching between shooting steel cased and brass cased?


This has been shown to cause extraction problems.  Good call.
11/9/2009 2:52:49 PM EDT
[#10]
Quoted:
Are you ever switching between shooting steel cased and brass cased?


Oh yeah this could cause it to. Shooting steel then brass could cause this due to the steel not expanding and sealing off the chamber allowing carbon to get in there
11/9/2009 2:53:51 PM EDT
[#11]
i use to shoot factory brass loads and then brass reloads till i got these steel ones and when it started to malfuntional i switched back since i had the brass stuff with me and it only got stuck when it got hot so hence the reason i thought it maybe gumming up
11/9/2009 3:01:40 PM EDT
[#12]
Hit your chamber with a good brush and solvent and you should solve your problem.  If not, I'd contact POF and ask why their gun can't run steel cased ammunition.
11/9/2009 3:09:19 PM EDT
[#13]
i was told to run brake cleaner through it and scrub a dub dub with some good ole elbow grease but what i scared about is that my rifle is duracoated and i dont want to mess up the coating
11/9/2009 3:16:43 PM EDT
[#14]
Headspace, barrel not torqued to spec ( loose), bad extractor, bad lock up (micro cracked bolt), crap ammo ..ur the bomb...pick one
11/9/2009 4:07:32 PM EDT
[#15]
Quoted:
i was told to run brake cleaner through it and scrub a dub dub with some good ole elbow grease but what i scared about is that my rifle is duracoated and i dont want to mess up the coating



Then get some Hoppes #9, Hoppes Elite, MPro-7, SLIP 2000 carbon killer or 725, and use a chamber brush to thoroughly clean out the chamber.  I'm willing to be it just has a huge amount of carbon fouling in there from the poor seal that steel makes in the chamber, and possibly a lack of proper cleaning of the chamber over that past 4,000 rounds.

When was the rifle Duracoated?  When you got it, or just before it started having the problems?  There isn't any in the chamber is there?
11/9/2009 5:33:36 PM EDT
[#16]
In re to my last response to your question...Also check your stock buffer spring movement (pull and look at the spring, make sure it is well lubed and not goofed up or broken) and  also take a close look at your reciever in re to line up when you tighten stuff together..Sounds moronic, but, I have seen these springs fail  & hang up in a blue moon & cause much ass scratching.  Usually dirt or sand is the culprit. Very rare, but it happens. Other than that, start checking from  my previous post with the extractor and move on from there.
11/10/2009 11:17:30 AM EDT
[#17]
Good point tho neither the less i will double check thanks
11/10/2009 11:32:53 AM EDT
[#18]
Quoted:
also if it is out of spec what is the easiest way to correct it

get a new barrel

is there a way to check with out a head space guage?

yes but it's more difficult as it requires you to take a chamber cast then measure it.

11/10/2009 1:01:10 PM EDT
[#19]
10 bucks you just have excessive carbon fouling in your chamber.  scrub it out and you should be good to go.  nothing wrong with steel for plinking, ya just got to make sure your chamber is clean before shooting brass.
11/10/2009 6:22:52 PM EDT
[#20]
check the extractor it may not be catching the rim of the spent case allowing the new cartridge no where to go.
11/11/2009 2:42:49 PM EDT
[#21]
it is on a few of the stuck one it was actually breaking the rim off
AR Sponsor