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Posted: 10/24/2016 12:24:23 AM EDT
[#1]
Beat the flash hider off with a hammer?
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Posted: 10/24/2016 12:24:35 AM EDT
[#2]
Nah, it's fine.
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Posted: 10/24/2016 12:25:12 AM EDT
[#3]
Hard to tell in the pics what the crown looks like, but if the rest of the work on that barrel is similar to the shoulder, I'd throw it away.
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Posted: 10/24/2016 12:25:34 AM EDT
[#4]
Machining looks a little rough.
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Posted: 10/24/2016 12:25:44 AM EDT
[#5]
I can't see shit with all that carbon fouling.
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Posted: 10/24/2016 12:28:26 AM EDT
[#6]
Can you provide a round count and the number of times thrown down the driveway?
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Posted: 10/24/2016 12:29:43 AM EDT
[#7]
Was a chisel or screwdriver involved in any part of this process?
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Posted: 10/24/2016 12:30:33 AM EDT
[#8]
Was a chisel the only removal tool available?
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Posted: 10/24/2016 12:31:59 AM EDT
[#9]
maybe you just suck at shooting?
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Posted: 10/24/2016 12:34:11 AM EDT
[#10]
I;ve beaten a rented mule less than that.
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Posted: 10/24/2016 12:36:26 AM EDT
[#11]
Looks like it is southern hemisphere rifling, needs to spin the other way to work right up here. |
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Posted: 10/24/2016 12:37:56 AM EDT
[#12]
Tough to tell if the crown is messed up, doesn't look it to me. But like everyone else said, wtf did the barrel shoulder do to you to get that kinda punishment?
What kinda groups were we talking? See you have a quad rail on, who's the manufacturer? What kinda ammo? |
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Posted: 10/24/2016 12:38:19 AM EDT
[#13]
Pretty sure all that blue shit in there would fuck up accuracy pretty bad...
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Posted: 10/24/2016 12:39:56 AM EDT
[#14]
Is that a Mosin?
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Posted: 10/24/2016 12:40:34 AM EDT
[#15]
don't use channel locks to remove the muzzle device
can't see the crown well enough, but it looks like there is debris in the barrel still (???) or some physical damage to the rifling just inside the muzzle. photo not close enough to see. |
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Posted: 10/24/2016 12:42:36 AM EDT
[#16]
Quote HistoryQuoted:
Beat the flash hider off with a hammer? A glass of wine, some Karen Carpenter and a little lube might work better. |
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Posted: 10/24/2016 12:44:04 AM EDT
[#17]
did you use a pipe wrench on it?
looks dirty, cant tell of crown is jacked or what. You need to do a 20min video showing it.. |
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Posted: 10/24/2016 12:48:57 AM EDT
[#18]
OP, you really need to take a macro shot of the muzzle if you want anything useful from this thread, besides pointing out how mangled the shoulder is.
which leads me to another thing - I wouldn't mount a suppressor to that if i were you. |
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Posted: 10/24/2016 12:50:03 AM EDT
[#19]
Quote HistoryQuoted:
OP, you really need to take a macro shot of the muzzle if you want anything useful from this thread, besides pointing out how mangled the shoulder is. which leads me to another thing - I wouldn't mount a suppressor to that if i were you. Oh come on whats the worst that could happen! |
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Posted: 10/24/2016 12:52:19 AM EDT
[#20]
I think we've been trolled.
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Posted: 10/24/2016 12:53:21 AM EDT
[#21]
Chuck it up in the lathe and refresh the crown.
Bore and crown are everything. The rest, just gets the girls wet. |
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Posted: 10/24/2016 12:56:54 AM EDT
[#22]
it looks dirty. very dirty bore..
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Posted: 10/24/2016 1:02:45 AM EDT
[#23]
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Posted: 10/24/2016 1:18:16 AM EDT
[#24]
Quote HistoryQuoted:
Chuck it up in the lathe and refresh the crown. Bore and crown are everything. The rest, just gets the girls wet. I remember reading about a guy that was curious how muzzle condition affected accuracy. what I took away from it was a guy torturing a barrel, intentionally fucking up the crown in various ways with carious effects, and all problems were solved simply with a hacksaw, knocking about 1/2" off the barrel. not even deburring it, just shooting a couple rounds before shooting a new group, and all was well. wish i had a link to that...it was interesting. |
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Posted: 10/24/2016 1:21:50 AM EDT
[#25]
Looks good to me, if it doesn't shoot 1MOA all day long, you aren't doing your part.
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Posted: 10/24/2016 1:22:24 AM EDT
[#26]
Define "piss poor groups".
What ammo? |
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Posted: 10/24/2016 1:23:18 AM EDT
[#27]
stop doing business a Corkey's Gun Shop
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Posted: 10/24/2016 1:24:01 AM EDT
[#28]
A little FrogLube will fix that right up.
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Posted: 10/24/2016 2:44:54 AM EDT
[#29]
I suggest you put it back in your garbage disposal for a little bit longer this time.
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Posted: 10/24/2016 9:52:54 AM EDT
[#30]
Quote HistoryQuoted: Beat the flash hider off with a hammer? I didn't beat up the shoulder, the manufacturer did that when I sent this upper back because it wouldn't cycle. The crush washer had been flattened to the point that it wouldn't slide over the threads so I assume that damage happened when they removed it. |
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Posted: 10/24/2016 9:54:02 AM EDT
[#31]
Quote HistoryQuoted: Can you provide a round count and the number of times thrown down the driveway? |
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Posted: 10/24/2016 9:55:11 AM EDT
[#32]
Quote HistoryQuoted: maybe you just suck at shooting? It's possible, but I shot some other groups that day with other guns that were just fine. 6" @ 100 yards with Lake City M193 has me a little concerned lol |
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Posted: 10/24/2016 9:55:41 AM EDT
[#33]
Quote HistoryQuoted: Tough to tell if the crown is messed up, doesn't look it to me. But like everyone else said, wtf did the barrel shoulder do to you to get that kinda punishment? What kinda groups were we talking? See you have a quad rail on, who's the manufacturer? What kinda ammo? |
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Posted: 10/24/2016 9:56:28 AM EDT
[#34]
Quote HistoryQuoted: did you use a pipe wrench on it? looks dirty, cant tell of crown is jacked or what. You need to do a 20min video showing it.. |
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Posted: 10/24/2016 9:58:34 AM EDT
[#35]
You're GTG IMO.
I don't ascribe to the crown makes all the difference thought process. I'd clean it up and smooth it out but, beyond that, you should be gtg. |
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Posted: 10/24/2016 9:59:05 AM EDT
[#36]
That a PSA upper? Friend has a 16" SS upper that would group like 7", I was with him at the time and confirmed it was a POS. He never could get them to respond but he bought it from Primary Arms who took care of him. There's a lesson in there somewhere....
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Posted: 10/24/2016 9:59:49 AM EDT
[#37]
Quote HistoryQuoted:
You're GTG IMO. I don't ascribe to the crown makes all the difference thought process. I'd clean it up and smooth it out but, beyond that, you should be gtg. Not if his gun is shooting 6" groups. |
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Posted: 10/24/2016 10:00:42 AM EDT
[#38]
Quote HistoryQuoted:
A glass of wine, some Karen Carpenter Tina Turner by the looks of it and a little lube might work better. Quote HistoryQuoted:
Quoted:
Beat the flash hider off with a hammer? A glass of wine, some Karen Carpenter Tina Turner by the looks of it and a little lube might work better. Fixed. |
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Posted: 10/24/2016 10:02:45 AM EDT
[#39]
Quote HistoryQuoted: That a PSA upper? Friend has a 16" SS upper that would group like 7", I was with him at the time and confirmed it was a POS. He never could get them to respond but he bought it from Primary Arms who took care of him. There's a lesson in there somewhere.... I'm horrible at macro photography, those pics were taken with my iPhone. I will try after work today to get some more pics after I clean it. |
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Posted: 10/24/2016 10:04:11 AM EDT
[#40]
Quote HistoryQuoted:
It's possible, but I shot some other groups that day with other guns that were just fine. 6" @ 100 yards with Lake City M193 has me a little concerned lol Quote HistoryQuoted:
Quoted:
maybe you just suck at shooting? 6" @ 100 yards with Lake City M193 has me a little concerned lol That's ~50% larger than expected. What sights? Anything loose? |
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Posted: 10/24/2016 10:04:37 AM EDT
[#41]
Quoted: Would anything you see in these pics affect accuracy in a negative way? This gun shot some piss poor groups yesterday and I'm wondering if it's this barrel. http://i27.photobucket.com/albums/c197/91nx2k/Mobile%20Uploads/15B16BE2-4F0F-48D9-9FEC-6194B12B7BC8_zpswhcbrxof.png http://i27.photobucket.com/albums/c197/91nx2k/Mobile%20Uploads/19416D6A-290D-4BD6-A487-14F7B110EDD1_zpsut5k0tkx.png http://i27.photobucket.com/albums/c197/91nx2k/Mobile%20Uploads/0C22375D-9534-4179-A283-445B6AA39936_zpsqcgvlv8h.jpg |
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Posted: 10/24/2016 10:05:11 AM EDT
[#42]
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Posted: 10/24/2016 10:06:03 AM EDT
[#43]
Quote HistoryQuoted: Was a chisel or screwdriver involved in any part of this process? |
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Posted: 10/24/2016 10:07:49 AM EDT
[#44]
Dremmel out the imperfections, throw some fluting on it while you have the Dremmel out; GTG.
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Posted: 10/24/2016 10:10:32 AM EDT
[#45]
Quote HistoryQuoted:
NOT a PSA upper, I left the carbon because I thought it may give some indication of irregular gas escaping behind the bullet (if the crown was indeed fucked). I'm horrible at macro photography, those pics were taken with my iPhone. I will try after work today to get some more pics after I clean it. Quote HistoryQuoted:
Quoted:
That a PSA upper? Friend has a 16" SS upper that would group like 7", I was with him at the time and confirmed it was a POS. He never could get them to respond but he bought it from Primary Arms who took care of him. There's a lesson in there somewhere.... I'm horrible at macro photography, those pics were taken with my iPhone. I will try after work today to get some more pics after I clean it. The crown doesn't look that terrible from the photo, did they say why it wouldn't cycle? I'd be interested in what the chamber looks like as well with that kind of shit work the problem could easily be on that end. |
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Posted: 10/24/2016 10:32:55 AM EDT
[#46]
Quote HistoryQuoted: That's ~50% larger than expected. What sights? Anything loose? Quote HistoryQuoted: Quoted: Quoted: maybe you just suck at shooting? 6" @ 100 yards with Lake City M193 has me a little concerned lol That's ~50% larger than expected. What sights? Anything loose? |
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Posted: 10/24/2016 10:35:38 AM EDT
[#47]
Quote HistoryQuoted: The crown doesn't look that terrible from the photo, did they say why it wouldn't cycle? I'd be interested in what the chamber looks like as well with that kind of shit work the problem could easily be on that end. Quote HistoryQuoted: Quoted: Quoted: That a PSA upper? Friend has a 16" SS upper that would group like 7", I was with him at the time and confirmed it was a POS. He never could get them to respond but he bought it from Primary Arms who took care of him. There's a lesson in there somewhere.... I'm horrible at macro photography, those pics were taken with my iPhone. I will try after work today to get some more pics after I clean it. The crown doesn't look that terrible from the photo, did they say why it wouldn't cycle? I'd be interested in what the chamber looks like as well with that kind of shit work the problem could easily be on that end.  . But when he sent it back it had the same brake on it.It was severely undergassed when I first shot it, I think I am going to take the handguard and barrel nut off and get some better pics. Probably pull the gas block off too. |
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Posted: 10/24/2016 10:48:34 AM EDT
[#48]
Did you or someone else slip with the Dremel tool
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Posted: 10/24/2016 10:49:59 AM EDT
[#49]
What the fuck did you do to that thing?
ETA: Answered. Damn. |
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Posted: 10/24/2016 10:54:45 AM EDT
[#50]
Quote HistoryQuoted:
Not if his gun is shooting 6" groups. Quote HistoryQuoted:
Quoted:
You're GTG IMO. I don't ascribe to the crown makes all the difference thought process. I'd clean it up and smooth it out but, beyond that, you should be gtg. Not if his gun is shooting 6" groups. It's an AR - could be 4/5 other reasons why that's happening. That being said, all OP has to do is lop off 1/4in and he's gtg...Enough thread exists to bite on whatever brake he wants... |
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