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05-13-2017, 10:20 AM
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Join Date: May 2017
Location: C incinnati, Ohio
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dark streaks in barrel
I got a shield 45 a few days ago and noticed that three of the lands in the barrel were dark--as if blued. I cleaned it, put 175 (flawless) rounds through it, and cleaned it. The dark streaks were still there so I tried 3 different solvents with a bronze brush followed by a patch with JB bore paste.....still there. Any idea what this might be?
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05-13-2017, 11:43 AM
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I am not a metallurgist but sounds like a little discoloring from heat from machining? Doesn't sound like an issue to be concerned with unless it has become brittle from too much heat?
A call to S&W to describe what you see may put you at ease. Glad to hear it shoots well, I love mine!
Karl
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05-14-2017, 09:03 AM
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Bet S&W will tell you "just mfg variation" and no issue. On your end, you say "flawless" operation. No problem until there's a problem....
__________________
CERAKOTE Svcs.
Class 01 FFL
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05-14-2017, 09:45 AM
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If you're getting flawless operation and satisfactory accuracy, just carry on. I once had a "flawed" barrel replaced with a new one .....big mistake on my part , it wasn't as accurate and plagued with feeding problems. Tight chamber and little throat....I wished I had never looked down the old barrel and got upset about a perceived "flaw"!
You just might want to keep that puppy.
Gary
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05-14-2017, 12:44 PM
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All pistols are test fired before leaving the factory. The streaks might be copper from that. It is difficult to remove so a simple cleaning may not touch it.
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05-14-2017, 02:32 PM
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Yes, but how does it shoot?
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05-15-2017, 02:06 PM
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It shot great. The dark areas weren't copper--I cleaned it with 4 progressively stronger solvents and a bronze brush. I finished with JB paste on a patch for about 20 passes up and down the bore. Nothing touched those streaks. I contacted customer service and they sent me a label to send in the entire gun for inspection. Hope I am not sorry! I have owned and shot maybe 75 handguns in my life ( a sickness, I know) and have never seen anything like this in a new gun. Anyone know what their turnaround time is these days? I miss it already!
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05-15-2017, 02:18 PM
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If it's shooting great I wouldn't send it off right away. With the rebate a lot of new Shield owners are clogging the system with returns for everything. If you read through these forums you will see lead times of 6-8 weeks. Some longer, some less. I would shoot it until the lead times are down to days. Who knows, by then maybe the streaks may be gone.
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