I was under the impression that bronze bore and chamber brushes were safe to use with stainless steel barrels, but after reading a thread that suggests otherwise, I emailed LaRue, and here is what they said: I wrote: "I assume it's ok to use bronze bore and chamber brushes in the Stealth stainless steel barrels, correct? Thanks." They replied: "Sir, No, use swabs or plastic. Thanks, Brian Fulton LaRue Tactical 512-259-1585 www.LaRueTactical.com" I can't believe that for $1200 they can't include a one fucking page instruction sheet that contains this valuable information. Excuse my french, but I'm quite upset right now. I have used a bronze chamber brush twice and ran a bronze brush through the bore approximately 10-20 times, how much damage do you think I have caused?