Not a Movie, but, a cool read is "Rifleman Dodd".

It is an historical novel set in Portugal, during the Napoleonic Wars. There is a scene where several French soldiers melt plundered silverware and coins to cast Silver Musket Balls.

A lone Green Coated Rifleman is inflicting mayhem on their unit, at considerable distance, with his Baker Rifle. The Frenchmen are convinced he is a Demon. They resort to the "silver bullet" to rid themselves of this supernatural enemy.

"Rifleman Dodd", (English title is: "Kill the French"), by C.S. Forester, (Author of the Hornblower / Royal Navy series). Forester also wrote "Sailor of the King" which was made into a Movie. It features rifleman vs. Pocket Battleship, no reloading though!