The Springfield Model 1822 was a .69 caliber flintlock musket manufactured by the United States in the early 19th century. The Model 1822 was an improvement to the Springfield Model 1816. Some documents refer to the Model 1822 as its own separate model, but other documents refer to it as a variant of the Model 1816 designated as the Type II. In the Western Theater, the situation was worse for both sides and smoothbores remained in use in the Union armies into 1863. Some Confederate regiments were still carrying .69 caliber muskets at the Battle of Franklin in November 1864.