IMPORTANT NOTICE:  Pistol caliber cartridges ONLY are allowed in the pistol cells. This includes Cells 2 - 5 & 7 - 15.  Cell 1 (Tin Can Alley) is .22 rimfire only.  Cell 6 which is for shotguns only but NO SLUGS.  This does allow the use of pistol caliber carbines. 
"Pistol Caliber" should be self explanatory but for clarification means any standard pistol caliber from .22LR to .44 mag is allowed. 5.56/.223 or bigger is absolutely prohibited in any pistol cell and is only allowed on Bays B & C with a Carbine Variance.  Bay Y, next to the IDPA barn, allows for any type of ammunition that follows the PSC rules.