Originally Posted By: Bad DawgI've heard that some of the nylon bore brushes have a steel base. Anyone else ever hear of this? Someone on rimefire central said he tested them with a magnet. I'd never want to put something like that down my bore if it's true.
If you use a bore guide and rod guide, it is a non issue completely. Additionally, the steel is much softer than barrel steel. However, I don't really like nylon brushes for more than a quick push to knock out powder fouling. But different strokes (pun intended...?). Like bronze brushes with the brass core...however I do not have a 17 cal.