Mel Gibson's excellent movie centered around the Revolutionary War potrays wounds inflicted during the battle scenes. Like so many other movies of that period, they are enjoyable, but what really happened when a musket ball struck.
Muskets of various forms were a primary weapon in land and sea battles for over 300 years. Military muskets were commonly of .60 to .75 caliber, with .69 and .75 being the most popular. Musket balls used by militaries were typically 0.050 inches undersized to allow rapid loading despite powder fouling. Although a tight fitting, patched ball can be rather accurate from a smoothbore, these undersized balls litterally rattled out of the barrel in a zig-zag fashion. Military muskets were effective to about 50 yards individually, longer if fired en masse.
The fouling problem constrained muskets to low pressure. Low pressure resulted in low muzzle velocities. In order to maintain a minimum level of kinetic energy, a heavy bullet (ball) was needed and that meant a large caliber. Soldiers having to fire many shots would load only about half of the powder in their paper cartridges. All of these factors combined to yield muzzle velocities of 580-750 feet per second.
When the ball struck, it crushed and tore the tissue in its path. The tearing resulted when the tissue was forced to stretch beyond its limit by the passing ball. When the ball struck bone it was sometimes deflected due to its shape and low velocity. Other times the large, heavy musket ball impacted bone and stopped, which must have resulted in a horrible jarring.
If the musket seems ineffective, recall Robert Rogers' advisement not to march too close, "...lest one musket ball pass through two men."
Muskets of various forms were a primary weapon in land and sea battles for over 300 years. Military muskets were commonly of .60 to .75 caliber, with .69 and .75 being the most popular. Musket balls used by militaries were typically 0.050 inches undersized to allow rapid loading despite powder fouling. Although a tight fitting, patched ball can be rather accurate from a smoothbore, these undersized balls litterally rattled out of the barrel in a zig-zag fashion. Military muskets were effective to about 50 yards individually, longer if fired en masse.
The fouling problem constrained muskets to low pressure. Low pressure resulted in low muzzle velocities. In order to maintain a minimum level of kinetic energy, a heavy bullet (ball) was needed and that meant a large caliber. Soldiers having to fire many shots would load only about half of the powder in their paper cartridges. All of these factors combined to yield muzzle velocities of 580-750 feet per second.
When the ball struck, it crushed and tore the tissue in its path. The tearing resulted when the tissue was forced to stretch beyond its limit by the passing ball. When the ball struck bone it was sometimes deflected due to its shape and low velocity. Other times the large, heavy musket ball impacted bone and stopped, which must have resulted in a horrible jarring.
If the musket seems ineffective, recall Robert Rogers' advisement not to march too close, "...lest one musket ball pass through two men."