Picked up a new S&W 686 3" barrel. Took it to the range and fired 31 rds. I noticed a lot of dust was blowing out the front of the barrel around round 20. This is what the forcing cone looks like and there was a bunch of crap in the barrel. The forcing cone on my other 686 doesn't look like this one at all and has never had has much debri in the barrel. I'm thinking this is a problem but I'm no gun expert. Is this a problem? I ran a tooth pick over it and can feel every groove.
The smooth cone is the other 686 with 600 rds fired.
The smooth cone is the other 686 with 600 rds fired.




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