As a chemical guy and an IPSC and Bench Rest shooter I am conflicted with the information presented. I would need to see more or the actual data before I would change my ways.
olp73 - While not an expert by any stretch, the practice of "shooting the lead out" sounds risky!
My cleaning ways:
- A brush never touches any of my barrels
- IPSC gun (SV & Wilson) cleaned ~every 3,000 rounds or before major matches (Glocks cleaned 1/year or 10,000 rounds)
- Bench Rest barrel cleaned ~ 100 rounds (excluding break-in)