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Posted: 4/8/2016 7:53:49 PM EDT
Sig P220 barrel. Rifling good on one side, barrel polished smooth on the other:
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Posted: 4/8/2016 7:55:27 PM EDT
[#1]
Bore is not concentric with the barrel
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Posted: 4/8/2016 7:56:08 PM EDT
[#2]
That ain't kosher
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Posted: 4/8/2016 7:56:29 PM EDT
[#3]
ever so slightly bent barrel?
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Posted: 4/8/2016 7:57:21 PM EDT
[#4]
Weird. Tag for explanation.
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Posted: 4/8/2016 7:57:41 PM EDT
[#5]
How does it shoot?
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Posted: 4/8/2016 7:58:05 PM EDT
[#6]
stop curving your bullets!
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Posted: 4/8/2016 7:58:45 PM EDT
[#7]
I'd like to know the round count what type of ammo was run through it.
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Posted: 4/8/2016 7:59:32 PM EDT
[#8]
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Posted: 4/8/2016 8:01:41 PM EDT
[#9]
Improper cleaning from the muzzle end.
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Posted: 4/8/2016 8:02:25 PM EDT
[#10]
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Posted: 4/8/2016 8:03:56 PM EDT
[#11]
Sure it's not just leaded up?
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Posted: 4/8/2016 8:08:25 PM EDT
[#12]
Quote HistoryQuoted:
Sure it's not just leaded up? I;m going to go with this...de lead the hell out of it first...then check the rifling |
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Posted: 4/8/2016 8:10:45 PM EDT
[#13]
Wear from a steel cleaning rod
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Posted: 4/8/2016 8:11:11 PM EDT
[#14]
Quoted:
Quoted:
Sure it's not just leaded up? I;m going to go with this...de lead the hell out of it first...then check the rifling and if that doesn't work, Top Gun Supply has you covered |
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Posted: 4/8/2016 8:11:39 PM EDT
[#15]
Gravity pulls the bullets down in the barrel causing the wear you see
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Posted: 4/8/2016 8:14:08 PM EDT
[#16]
Quote HistoryQuoted:
Wear from a steel cleaning rod Possibly... People have no idea how hard cleaning with crap equipment is on a barrel. I still agree with Mark Westrom's opinion that "barrel break in" is a load of shit and only causes unnecessary wear. |
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Posted: 4/8/2016 8:18:25 PM EDT
[#17]
Quote HistoryQuoted:
Possibly... People have no idea how hard cleaning with crap equipment is on a barrel. I still agree with Mark Westrom's opinion that "barrel break in" is a load of shit and only causes unnecessary wear. Quote HistoryQuoted:
Quoted:
Wear from a steel cleaning rod Possibly... People have no idea how hard cleaning with crap equipment is on a barrel. I still agree with Mark Westrom's opinion that "barrel break in" is a load of shit and only causes unnecessary wear. This is why I went to boresnakes. |
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Posted: 4/8/2016 8:24:27 PM EDT
[#18]
Sandpapered bore cleaning attemps.
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Posted: 4/8/2016 8:31:20 PM EDT
[#19]
Was the gun fired whilst on a magnetic treadmill...? |
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Posted: 4/8/2016 8:33:01 PM EDT
[#20]
"Lead free" or "non toxic" ammo / primers??
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Posted: 4/8/2016 8:49:31 PM EDT
[#21]
When did you notice this? I mean did you ever check it before and the barrel appeared normal and then you looked again and it looked as pictured?
It was either made that way and was a bad barrel from the get go... it's happened before on other handguns OR, improper cleaning practices/cleaning rod wear. You are not going to see that any other way that I know of..... certainly won't see that from shooting. ETA: How does it shoot? Has the accuracy gone down hill or does it shoot the way it always did? Is it accurate or as accurate as it's always been? |
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Posted: 4/8/2016 8:52:09 PM EDT
[#22]
Quote HistoryQuoted:
When did you notice this? I mean did you ever check it before and the barrel appeared normal and then you looked again and it looked as pictured? It was either made that way and was a bad barrel from the get go... it's happened before on other handguns OR, improper cleaning practices/cleaning rod wear. You are not going to see that any other way that I know of..... certainly won't see that from shooting. I had an Olympic 1911 barrel just like that new. |
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Posted: 4/8/2016 8:52:24 PM EDT
[#23]
Can you show us a picture looking straight through from each end?
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Posted: 4/8/2016 8:53:48 PM EDT
[#24]
Quote HistoryQuoted:
I had an Olympic 1911 barrel just like that new. Quote HistoryQuoted:
Quoted:
When did you notice this? I mean did you ever check it before and the barrel appeared normal and then you looked again and it looked as pictured? It was either made that way and was a bad barrel from the get go... it's happened before on other handguns OR, improper cleaning practices/cleaning rod wear. You are not going to see that any other way that I know of..... certainly won't see that from shooting. I had an Olympic 1911 barrel just like that new. I had a S&W barrel like that too...... brand new with zero rounds on it. |
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Posted: 4/8/2016 8:54:36 PM EDT
[#25]
Use a dental pic to check if it's fouling or actually erosion.
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Posted: 4/8/2016 8:56:43 PM EDT
[#26]
Weird stuff there. No idea as to what might cause that but in for the opinions/determination.
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Posted: 4/8/2016 8:57:00 PM EDT
[#27]
That's *really* weird if it's from shooting.
The black finish isn't worn out on the rest of the muzzle so the round count can't be terribly high. Did this pistol get stored on a muzzle rod often? Is the land in question on top or bottom of the muzzle, or the side? ETA: your post says 'side'. |
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Posted: 4/8/2016 8:58:58 PM EDT
[#28]
Quoted:
Sig P220 barrel. Rifling good on one side, barrel polished smooth on the other: http://i461.photobucket.com/albums/qq331/AR45fan/34FA2A31-C8BC-4C28-9D47-4C0A35DFE4E7.jpg http://i461.photobucket.com/albums/qq331/AR45fan/6AF9A768-6954-460A-B7F7-7A42D281D560.jpg Yes, in a NFA firearm. Poorly mounted can was causing it. |
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Posted: 4/8/2016 9:06:14 PM EDT
[#29]
If not lead build up barrel is possibly shot out. I had a shot out barrel once in a taurus 92, it looked like that.
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Posted: 4/8/2016 9:17:25 PM EDT
[#30]
Quote HistoryQuoted:
Possibly... People have no idea how hard cleaning with crap equipment is on a barrel. I still agree with Mark Westrom's opinion that "barrel break in" is a load of shit and only causes unnecessary wear. Quote HistoryQuoted:
Quoted:
Wear from a steel cleaning rod Possibly... People have no idea how hard cleaning with crap equipment is on a barrel. I still agree with Mark Westrom's opinion that "barrel break in" is a load of shit and only causes unnecessary wear. You really think that's from cleaning equipment? Cmon man. Posted Via AR15.Com Mobile |
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Posted: 4/8/2016 9:19:22 PM EDT
[#31]
Was the rifling ever right? Factory defect barrel?
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Posted: 4/8/2016 9:26:37 PM EDT
[#32]
Do not use steel wool when cleaning a barrel.
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Posted: 4/8/2016 9:33:36 PM EDT
[#33]
Quote HistoryQuoted:
Improper cleaning from the muzzle end. With what, tungsten carbide? 
Cleaning rods can contribute to wear, but for fucks sake, you know how long you'd have to grind away at that barrel with a very hard steel cleaning rod to make the rifling disappear on one side of a very hard steel barrel? |
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Posted: 4/8/2016 9:35:32 PM EDT
[#34]
Lol there is no way a cleaning rod wore down the rifling completely in a barrel
Some of you people
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Posted: 4/8/2016 9:38:50 PM EDT
[#35]
Quote HistoryQuoted:
I'd like to know the round count what type of ammo was run through it. |
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Posted: 4/8/2016 9:44:26 PM EDT
[#36]
It's weird that 1 rifling is missing. Can you take a picture farther down the bore?
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Posted: 4/8/2016 9:49:50 PM EDT
[#37]
Looks to me like it was manufactured wrong.
That's not what over-cleaning looks like
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Posted: 4/8/2016 9:54:12 PM EDT
[#38]
Quote HistoryQuoted:
Improper cleaning from the muzzle end. This would be my guess. |
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Posted: 4/8/2016 9:55:36 PM EDT
[#39]
Slow down with the info, OP. I'm having trouble processing all this!
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Posted: 4/8/2016 9:58:59 PM EDT
[#40]
We're ya cleaning it with one of these?
 |
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Posted: 4/8/2016 10:05:07 PM EDT
[#41]
Quote HistoryQuoted: How does it shoot? |
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Posted: 4/8/2016 10:08:21 PM EDT
[#42]
Quote HistoryQuoted:
With what, tungsten carbide?
Cleaning rods can contribute to wear, but for fucks sake, you know how long you'd have to grind away at that barrel with a very hard steel cleaning rod to make the rifling disappear on one side of a very hard steel barrel? Quote HistoryQuoted:
Quoted:
Improper cleaning from the muzzle end. With what, tungsten carbide?
Cleaning rods can contribute to wear, but for fucks sake, you know how long you'd have to grind away at that barrel with a very hard steel cleaning rod to make the rifling disappear on one side of a very hard steel barrel? THIS x2 |
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Posted: 4/8/2016 10:13:27 PM EDT
[#43]
Quote HistoryQuoted: With what, tungsten carbide? Cleaning rods can contribute to wear, but for fucks sake, you know how long you'd have to grind away at that barrel with a very hard steel cleaning rod to make the rifling disappear on one side of a very hard steel barrel? Quote HistoryQuoted: Quoted: Improper cleaning from the muzzle end. With what, tungsten carbide? Cleaning rods can contribute to wear, but for fucks sake, you know how long you'd have to grind away at that barrel with a very hard steel cleaning rod to make the rifling disappear on one side of a very hard steel barrel? Not as long as you would think with aluminum oxide, and other crap embedded, and overzealous scrubbing. |
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Posted: 4/8/2016 10:13:41 PM EDT
[#44]
Quote HistoryQuoted:
Slow down with the info, OP. I'm having trouble processing all this! Gun is 7 or 8 years old. 99% of the stuff shot through it has been 230gn FMJ / 5.0gn of Bullseye / CCI large primer. I clean from the chamber with an aluminum rod but I'm not in the habit of cleaning after every range trip. I gave it to a Sig-trained armorer gunsmith a couple weeks ago for a detail clean and total spring replacement. He sent the pics and informed me that the barrel was shot out in a weird way. Not sure if accuracy has gone down-hill. I haven't shot it much lately but was planning to which is why I was having the work done. |
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Posted: 4/8/2016 10:15:29 PM EDT
[#45]
Quote HistoryQuoted:
Bore is not concentric with the barrel FPNI perhaps unless improper cleaning is being utilized. |
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Posted: 4/8/2016 10:24:04 PM EDT
[#46]
Quote HistoryQuoted: Gun is 7 or 8 years old. 99% of the stuff shot through it has been 230gn FMJ / 5.0gn of Bullseye / CCI large primer. I clean from the chamber with an aluminum rod but I'm not in the habit of cleaning after every range trip. I gave it to a Sig-trained armorer gunsmith a couple weeks ago for a detail clean and total spring replacement. He sent the pics and informed me that the barrel was shot out in a weird way. Not sure if accuracy has gone down-hill. I haven't shot it much lately but was planning to which is why I was having the work done. Quote HistoryQuoted: Quoted: Slow down with the info, OP. I'm having trouble processing all this! Gun is 7 or 8 years old. 99% of the stuff shot through it has been 230gn FMJ / 5.0gn of Bullseye / CCI large primer. I clean from the chamber with an aluminum rod but I'm not in the habit of cleaning after every range trip. I gave it to a Sig-trained armorer gunsmith a couple weeks ago for a detail clean and total spring replacement. He sent the pics and informed me that the barrel was shot out in a weird way. Not sure if accuracy has gone down-hill. I haven't shot it much lately but was planning to which is why I was having the work done. I have never seen anything like that, nor would I have thought it even possible.... |
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Posted: 4/8/2016 10:27:52 PM EDT
[#47]
Tag for info.
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Posted: 4/8/2016 10:33:15 PM EDT
[#48]
Quote HistoryQuoted:
Wow, I was waiting for more info on those pics. I have never seen anything like that, nor would I have thought it even possible.... Quote HistoryQuoted:
Quoted:
Quoted:
Slow down with the info, OP. I'm having trouble processing all this! Gun is 7 or 8 years old. 99% of the stuff shot through it has been 230gn FMJ / 5.0gn of Bullseye / CCI large primer. I clean from the chamber with an aluminum rod but I'm not in the habit of cleaning after every range trip. I gave it to a Sig-trained armorer gunsmith a couple weeks ago for a detail clean and total spring replacement. He sent the pics and informed me that the barrel was shot out in a weird way. Not sure if accuracy has gone down-hill. I haven't shot it much lately but was planning to which is why I was having the work done. Do you think Sig might consider it a warranty issue and offer a replacement? |
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Posted: 4/8/2016 10:47:40 PM EDT
[#49]
Quote HistoryQuoted: Lol there is no way a cleaning rod wore down the rifling completely in a barrel Some of you people |
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Posted: 4/8/2016 10:53:31 PM EDT
[#50]
Can you confirm that is was ever correct???
Broken/damaged broach? If hammer forged, broken mandrel? |
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