Not so.:no:
Link Removed
http://www.isp.state.il.us/docs/1-154.pdf
IS IT LEGAL TO HAVE AMMUNITION IN THE CASE WITH THE FIREARM?
Yes, as long as the firearm is unloaded and properly enclosed in a case.
WHAT CONSTITUTES A LEGAL “CASE” FOR TRANSPORTING A FIREARM?
The Criminal Code refers to “a case, firearm carrying box, shipping box, or other container.” However, the Wildlife Code is more specific, defining case as “a container specifically designed for the purpose of housing a gun or bow and arrow device which completely encloses such gun or bow and arrow device by being zipped, snapped, buckled, tied, or otherwise fastened, with no portion of the gun or bow and arrow device exposed.”
In a unanimous opinion (written by a Chicago judge, no less), the Illinois Supreme Court in People v. Diggins No. 106367, has held:
"Section 24-1.6{c}{iii} of the Criminal Code of 1961 provides that a person is not guilty of aggravated unlawful use of a weapon if that weapon is “unloaded and enclosed in a case, firearm carrying box, shipping box, or other container by a person who has been issued a currently valid Firearm Owner's Identification Card.' 720 ILCS 5/24-1.6{c}{iii} (West 2006). In the case at bar, we are asked to determine whether the center console of a vehicle is a 'case' within the meaning of this provision. For the reasons that follow, we conclude that it is."
There is current legislation (HB00005) up for consideration that would change this to a case intended for carrying weapons.
Illinois General Assembly - Bill Status for HB0005