I looked but couldn't find it. I went to Mississippi Department of Public Safety | Keeping Mississippi Safe and printed off an application, some 6 pages, not all needed.
All pages need to be notarized ($$), a passport picture ($5 to $15) and money, $132., no money orders. $100 for the permit and $32 for fingerprinting.
My IC class was $75 plus $13 for the range. I've seen some listed with range time as much as $300.