Ryan,

You will only find a limited amount of information on the Atlanta Campaign in print, little on in a consolidated format on the internet. You will not find a consolidated list by regiment of what type of small arms each had. You will have to go through several miles of microfilm to come close by looking at the Quarterly Ordnance Reports by division of the antagonists. You can find notes of Field Artillery pieces by type and number each battery had in the book listed below.

Scaife, William R. The Campaign for Atlanta. Saline, MI: McNaughton & Gunn, 1993. 205 pages.

Below is a thorough bibliography of the Campaign provided by the U.S. Army Military History Institute.

http://ahecwebdds.carlisle.army.mil:8080/awapps/main.jsp?flag=browse&smd=2&awdid=1

Good luck in your research.

Respectfully,

Gerald D. Hodge, Jr.
War Between the States Historian
Historian: 39th Georgia Volunteer Infantry Regiment
http://39thgavolinfrgt.homestead.com/39thHomepage.html