Boy oh boy you did it this time mate!
You certainly snagged a goodun'!
Will be an amazing piece of kit regardless knowing it provenance, whether it goes back to Africa or just a wandering elephant in you back yard it will be a blast literally!
With BP it will certainly give a thump on either end - 1250gn conical & 10 dram of powder, you're one tough man!
Will be great to see what the range report turns out like for this one!
Lot of envious folks here drooling over this one, congratulations once more!