midnightmalloy
Well-Known Member
- Joined
- Jun 25, 2010
- Messages
- 842
I use JB with kroil for factory barrels and that is only to basically lap the barrel and get the barrel smooth. For a custom barrel I have never seen any reason to do so. Custom barrels are so smooth there is no reason to do anything to it. I think you will do more harm than good to use JB on a good custom barrel.