“Hollow-point and armor-piercing ammunition is prohibited.”
To go through IL carrying a firearm if you do not have an IL CCW:
(e) Nothing in this Act shall prohibit a non-resident from transporting a concealed firearm within his or her vehicle in Illinois, if the concealed firearm remains within his or her vehicle and the non-resident:
(1) is not prohibited from owning or possessing a
firearm under federal law;
(2) is eligible to carry a firearm in public under
the laws of his or her state or territory of residence, as evidenced by the possession of a concealed carry license or permit issued by his or her state of residence, if applicable; and
(3) is not in possession of a license under this Act.
If the non-resident leaves his or her vehicle unattended, he or she shall store the firearm within a locked vehicle or locked container within the vehicle in accordance with subsection (b) of Section 65 of this Act.
(Source: P.A. 98-63, eff. 7-9-13; 98-600, eff. 12-6-13; 99-78, eff. 7-20-15.)
I’d suggest talking to an IL law enforcement officer or attorney for their specific interpretation of the law. They will have a better understanding of how those laws are applied.