I actually ran into this insanity. While Ammoman can ship me case lots of 7.62 Russian and 5.56 NATO from New Jersey of all places, ordering a single box of .45 ACP was from someone in IL was strictly verboten.
Unreal.
Oh well, in the end I still prefer to roll my own. I tend to trust my work over others when using things that go BOOM in my hands.
I have a feeling that this and other wacky IL gun laws are relics of Prohibition, wanting to make it tough for Capone’s boys to reload their Tommy guns, etc. etc...These laws have long outlived their usefulness but spineless legislators won’t strike them down.