|This blown-up view of the 93rd New York Infantry taken shortly after the Maryland Campaign shows the infantrymen holding their Enfield rifled muskets (Library of Congress)|
The sources used in this survey are as follows:
- Joseph G. Bilby, "Small Arms at Antietam," American Rifleman, July 2012.
- Bruce B. Sterling, "Archaeological Interpretations of the Battle of Antietam through Analysis of Small Arms Projectiles," Archaeological Perspectives on the American Civil War.
- D. Scott Hartwig, To Antietam Creek: The Maryland Campaign of September 1862.
- Kevin Pawlak, "Army of the Potomac Armament," Antietam Brigades.
Based on these above sources, here are the results:
Army of Northern Virginia:
Bilby: 70% rifled
Sterling: 61% rifled
Hartwig: 70% rifled
Average: 67% rifled
Army of the Potomac:
Bilby: 90% rifled
Sterling: 84% rifled
Pawlak: 89.7% rifled
Average: 87.9% rifled