The popular Adams Revolver was a mainstay in mid-19th British Army. However, The Adams was a Single-Action weapon (meaning one trigger “pull” per shot fired). A large framed Revolver, The Adams had good stopping power. It took the redesign of a British Royal Engineer, Frederick Beaumont in 1856 that created the “Beaumont-Adams”. Made to function both as a Single-Action and Double-Action Revolver, over 44,000 were produced between Britain and The United States (via Contractor). Seen first in The Crimean War, large numbers were sold to The Union Army in 1862 during The American Civil War. The British version, which was a .442/.479 Round (which translated into a .54 Caliber Round) – was translated into a .36 Caliber Round for The American Army (and was meant to rival The Colt Naval Revolver). The Revolver was unusual in that it was chambered (cylinder) to hold only 5-rounds. A “good Shot” could fire 12-rounds per minute (with reload). Weighing 3-pounds and slightly over 11.5-inches in length, The Beaumont-Adams had a minimum effective range of 35-yards, with a maximum of 100-yards. Unfortunately, The Beaumont-Adams did not take hold in America over The Colt. It would remain a fixture in The British Army, being used in The Anglo-Zulu War, before being discontinued in 1880. However, The Canadian Royal Mounted Police favored The Beaumont-Adams up to the 1890s.