I have a Cherokee, in .32 cal. When I got the rifle, I knew it was pitted, but because they are so rare, I got it thinking I might rebore it to .36
Fowling made the rifle impossible to load, due to small ram rod and pitting. That's when I discovered Black MZ. With the Black MZ, the little rifle shoots as good as my .36 Seneca which has a perfect barrel.
Since then, I use the Black MZ, in all my small caliber rifles. Save the real for my large bores and flintlocks. I also use Black MZ in cap lock pistols and real black in my flintlock pistols.
Works.....for me.