Talk about rode hard, put away wet,....this old .50 cal., percussion sparked 25Lb. "Chunk Gun" BTDT.
As luck would have it the bore was well greased / oiled prior to it going' wherever the hell it was prior to going into intensive care here. I've had the breech cap off and the rifling is very strong, and good to go for some patched round ball shooting. Its' VERY slow twist would indicate that was it's original intent......