Can someone tell me what "Heavy Infantry" means? My Georgian ancestors' regiment was designated "Heavy Infantry"
I found this link to an old uniform drawing:

"Heavy Infantry"-Georgia
http://digitalgallery.nypl.org/nypldigital/dgkeysearchdetail.cfm?trg=1&strucID=707160&imageID=830280&total=192&num=0&word=confederate&s=1¬word=&d=&c=&f=&k=0&lWord=&lField=&sScope=&sLevel=&sLabel=&imgs=20&pos=4&e=w