I'm another one that lives in an area where you can't use a centerfire rifle, shotgun only. I save the scttergun for birds. I use a caplock with PRB.
Illinois is the same. Firearm season is shotguns with slugs, or muzzleloaders. We also have a muzzleloader only season and in the past, you had to choose between firearm season and muzzleloader season. These seasons consist of a 3 day weekend(Friday-Sunday) and a 4 day weekend(Thursday-Sunday), for a total of 7 days. Since the first weekend of firearm season starts 2 weeks before the first weekend of muzzleloader season, which is also the second week of firearm season, and is also right in the peak of rut, most muzzleloader hunters opted for the firearm season. The last weekend of muzzleloader season is the weekend after the combination opening muzzleloader weekend/2nd firearm weekend. This year you were allowed to participate in both seasons. So by getting tags for both seasons, you can hunt a 3 day weekend, a 4 day weekend and another 3 day weekend, for a total of 10 days and 2 anlerless only and 2 either sex tags(4 total).
In addition, we used to have a seperate pistol season the second weekend of January, where you are allowed 1 antlerless only tag. Last year the DNR started allowing hunters to use pistols during the regular firearm season. You can carry a pistol along with your firearm of choice. Now this year, the former pistol weekend has been changed to a late season firearm season. You can use any legal firearm, shotgun, pistol, muzzleloaging rifle and they even will now allow a muzzleloading pistol, although it is not allowed for the regular firearms season or muzzleloader season. Again, you can carry the pistol along with your other firearm of choice. This adds 3 more days for muzzleloader hunters.
These are great changes for muzzleloader hunters in Illinois. We now have many more opportunities and more days to hunt, as well as more available tags. I got them all this year so I have an antlerless only and either sex firearm tags, the same for muzzleloader tags and an antlerless only late firearm season tag, for a total of 5. I don't need 5 deer but I plan on hunting everyday, with my muzzleloaders, so depending on how things go, I might be making some donations of meat to the local food pantries.