The term "6-pounder" typically refers to a type of artillery piece that fires a projectile weighing six pounds. These cannons were commonly used in the 18th and 19th centuries, particularly during the Napoleonic Wars and the American Civil War. They were known for their mobility and effectiveness on the battlefield, making them a popular choice for both field and siege operations. In addition to traditional cannons, the term "6-pounder" can also refer to specific anti-tank guns used during World War II. These guns were designed to penetrate the armor of enemy tanks and played a crucial role in various military campaigns, showcasing the evolution of artillery technology over time.