I cruised through the threads and didnt find what I was looking for, How does the PC work in old worn and lightly pitted bores? I'm talking bores you would find in 100+ year old rifles, 40-82, 25-36, 38-55 types. What kind of bore residue/fouling is to be expected and how would it be removed from the deeper bore roughness? I have bore lapped the 25-36 and 38-55 and they shoot well enough with jacketed with the expected bore crud, but I wondered what deposits from PC at 1500 fps or lower would accumulate or if its worth the effort.
thanks