I bought one when I first got my Kimber but have never used it, for the concerns you've cited. I only shoot jacketed ammo, and usually only a few hundred rounds between cleanings, so I've never run into anything that a nylon brush, Break-Free, and a little elbow grease wouldn't take care of.
"He who goes unarmed in paradise had better be sure that that is where he is."
-- James Thurber
I think this is another one of the gimmics.It's made of material that is close to the hardness of what you're cleaning,and the ends are looped? Great on flat surfaces but not much on the corners.I bought 1 for a Super Blackhawk,and it hasn't been used 3 times.The gun was parted with over 10yrs ago.Guess I should go see if it's rusted.
[This message has been edited by rex (edited 10-07-2001).]
I used the tornado brushes in rifles and pistols but gave up as they just didn't clean any better then a snug fitting bronze one. No damage incurred as the SS is very soft with no hard, stiff edges as a SS brush. However, they are the best thing going to clean shotgun barrels with. Nothing else even comes close.