I agree with Jerry on the linen patching. Like the perpetual thread that won’t go away, about cotton patched ball combinations that mysteriously quit working. It’s not a mystery, cotton degrades over time, while linen either doesn’t, or does so slowly that it doesn’t matter.
I find patching a round ball in a smoothbores counterproductive. The trouble is not worth the marginal, if any, increased accuracy.
Hungry Horse