Reva, South Dakota Reva, South Dakota Reva is an unincorporated community in Harding County, South Dakota, United States. Although not tracked by the Census Bureau, Reva has been assigned the ZIP code of 57651. The community has the name of Reva Bonniwell, the daughter of a first settler. The Battle of Slim Buttes occurred here on September 9–10, 1876, in the Great Sioux Reservation between the United States Army and Miniconjou Sioux during the Great Sioux War of 1876. It marked the first significant victory for the Army since the stunning defeat of General George Custer at the Battle of Little Bighorn in
Battle of the Little Bighorn Model 1873 rifle and carbine, and was not considered a significant shortcoming in the overall worthiness of the shoulder arm. With the ejector failure in US Army tests as low as 1:300, the Springfield carbine was vastly more reliable than the muzzle-loading Springfields used in the Civil War. Gallear addresses the post-battle testimony concerning the copper .45-55 cartridges supplied to the troops in which an officer is said to have cleared the chambers of spent cartridges for a number of Springfield carbines. This testimony of widespread fusing of the casings offered to the Chief of Ordnance at the Reno Court