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Posted: 9/22/2005 3:51:25 PM EDT
I looked closer at my 590 A1 and noticed a black buildup along the end portion of the barrel.
im not sure what it is, but it heald up to a good 10 swipes of the wire brush and rags that i ran through it.
is this plastic maybe?
i shot 200 rounds of #8 shot at clays before i cleaned it.
is it just extremeley dirty because i shot 200 rounds?
how many times do you guys swipe your barrel with the wire brush usualy?
is 10 not enough?
Link Posted: 9/22/2005 4:08:50 PM EDT
[Last Edit: 9/22/2005 4:09:50 PM EDT by Dano523]
You’re seeing lead streaks caused by the lead pellets being forced up and out of the wad as it hits the reducing/choke section.

Now the good news, don't be so quick to scrub the barrel back to a gleaming lead free finish. The lead streaks work in your favor to stop rotation of the wad as it moves down the bore. When after shooting cleaning, just run a lightly oiled mop down the bore to apply a protective coat and let it go at that for a few thousand rounds. If you have screw in reducing type chokes (read IC or tighter), then you may want to pull the chokes and clean them or the choke is going to produce a tighter pattern over time (read depends on if the choke is smoother bored or ribbed surfaces in regards to tighter/loser patterns and build up). When I do get around to really cleaning my skeet shotguns, I can push tubes of plastic (cased by the wads over thousands of rounds) out of each barrel/tube set.

Also, trash the brass brush, it just doing more damage than good. To remove the lead streaks, use a good lead solvent with nylon brushes.
Link Posted: 9/22/2005 4:17:11 PM EDT
uhmm.. well my 590 A1 isnt exactly a skeet gun, i just use a hand tosser so the clays dont travel far and i have a better chance of hitting it with my mossberg.
I dont believe i have a choke on it, atleast not an adjustable one.
what harm does the brass brush do to the barrel?
since brass is a softer alloy than the barrel it cant be dammaged right?
Link Posted: 9/22/2005 4:35:18 PM EDT
Link Posted: 9/22/2005 7:23:24 PM EDT
I find out of all my shotguns my Mossberg is the hardest to get clean. It seems the bore is not as highly polished as some others and all the carbon, plastic and lead seem to stick to it.
I usually give it a quick clean after use and leave a heavy wet on it.
Then three or four days later give it a good clean it again and dry it out.
It takes a few days for the metal to 'sweat' out the fouling. Its amazing how much extra fouling you can clean out of it after a few days.
Another trick to speed up the process is to flush the barrel with boiling water. You have to make sure it is dry and lubed before you put it away though.
Brushes are fine to use too. The steel in a barrel is a hell of a lot harder than bronze.

Something else you could have done is get your forcing cone lengthened and the cone, chamber and bore polished. Makes cleaning a breeze and gets those patterns tighter.
Link Posted: 9/22/2005 7:59:33 PM EDT
Ok....

On a Mossberg.
Find reasonably coarse brass or copper screen. (Your local hardware should have it)
Take a burned out 12 ga brush.
Cut the screen in a way that it will wrap around the brush.
Now give the barrel some strokes with the contraption you have constructed.
(I do this with an oil-wet bore)
You will be amazed how much bacutis this technique will remove.
(Some do this with a cordless drill...I'm not that brave.)

Oh!
Wear gloves while wrapping the screen around the brush!
I'll post pics after class tomorrow.
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