Civil War Era "Minie Ball", conical lead bullet used in rifled muskets by both sides in the conflict, Extremely common mid 19th-century form of projectile, used with muzzleloading percussion cap guns that require a separate black powder charge. The bullet is heavily deformed, likely from being fired/impacting a hard surface. The bullet is designed to crumple on impact and cause maximum damage. The point bent to the side, the tail of the bullet is bent forward in on itself, the concave opening is pinched closed.