Thank you for this post... DSAfter 45 years as a Master Marine and Industrial Diesel Mechanic I have determined that "brake cleaner" is for cleaning brake parts and gun cleaning products are for cleaning guns.
Acetone. Really? You think that's scary stuff?None. Some brake cleaners contain acetone. I wouldn't use any of them on any guns. I would only use gun cleaners if I was you.
The big difference between brake cleaner (non-chlorinated) and action cleaners is the brake cleaners have acetone or another ketone and alcohols (methanol, etc). These will suck some water out of the air if you don't use other good stuff afterword. Also, the stuff that ends in 'tone' is more likely to strip off a finish (nail polish remover has these).
So, you gotta be careful during and after use. Works for me, though.
What's the advantage of using brake cleaners?