Steel Wool Chamber Cleaning

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marb4

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I have a "friend" who had a 22 semi auto with a little bit of a sticky chamber. What my "friend" did was to take about a postage stamp size piece of 0000 steel wool and put it through a patch loop on a cleaning rod (just like you would a regular cleaning patch). I, I mean my friend, wrapped the steel wool around the patch loop so that it looked sort of like a steel wool Q Tip. The end was then soaked in gun oil and the cleaning rod chucked into a cordless drill. The oil soaked steel wool was inserted into the chamber and rotated on low medium speed for 20-30 seconds. Since it is steel against steel (albeit soaked in oil) I was wondering if this could damage or in a sense "oversize" the chamber. The chamber didn't look any more polished than before this was done but rounds would "plop" in and out more easily. Just so I can let my friend know, is this method of cleaning a chamber too aggressive? I know an oversized chamber is not good and I wouldn't want my "friend" to damage any of his firearms.
 
For "cleaning" a chamber, yes it is too aggressive. For opening up a chamber that was machined too tight, it is perfect. You ought to (tell your friend) not to do this again and you'll (your friend) will be OK. From this point forward, just use Hoppes #9 or a cleaning solvent and a copper bore brush or cleaning patches to clean out the .22 chamber.

Remington 870's have been coming off the assembly line with chambers machined too tight and a patch of steel wool is the remedy for that problem too. But once it's done, you don't do it again.
 
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