Individual units later purchased such weapons privately, and they were used to considerable effect, but did indeed present problems in extended firefights; these units are not known to have had any trouble maintaining their ammunition supplies. Ripley was replaced as head of the Ordnance Department on September 15, 1863, principally because of his continuing opposition to the introduction of breech loading rifles, in disobedience to his orders from President Lincoln.
Individual units acquired these weapons privately and utilized them successfully in extended engagements; however, they faced issues with ammunition supply. Ripley was relieved of his position as head of the Ordnance Department on September 15, 1863, primarily because he continued to oppose breech-loading rifles despite orders from President Lincoln.