[mrerick]

You can clean things by hand. No need for the aggressive action of a power tool.

Besides, you don't rotate a bore brush while cleaning. You push it all the way through, and then draw it all the way out of the bore. You never reverse a bore brush while it is inside a barrel.

The barrel steel of a firearm is probably softer than you think it is, and you can do real damage with even bronze and brass tools if you do things wrong.

I personally use new formula Hoppes No. 9 to clean my firearm bores, and finish things off using Remington spray gun oil, then store things inside home made bore-stores (silicon impregnated sleeves).

Do not spray silicone directly onto the metal of a firearm. It's almost impossible to remove.

Otis makes videos describing how to use their products to clean firearms. They may prove helpful.

Here's an example:

https://www.youtube.com/watch?v=-fQ0tfU8tyk

I think that more damage is sometimes done to bores and rifling by improper cleaning than by actually firing of the gun.