Originally Posted by rost495
a bronze brush if stroked 20 times or 200 is going to wear a steel barrel?


Then why do people recommend using a bore guide? It's not a metal hardness issue, it's a grit on the rod and brush issue, and the fact that running anything in and out of your bore and over the crown a few hundred times when you don't need to is not a good idea.



A wise man is frequently humbled.