I leave my Pedérsoli BP ML .58 apart after shooting it and cleaning it. Easier to see if any rust forms after using boiling water and oil and grease etc. On the outside at least.

I haven't made any real effort to find a regulation load. Just one BP type and different charges behind some mini lead projectiles I bought with the rifle. Regulation is pretty much non existent. I want to try a round ball with it.

Caring for a BP ML? I think I will start a thread, we have experts on NE. A useful resource if they can share their knowledge.