I did my first muzzleloader hunt this year. In CO, black powder or BP substitute only, no sabot, no scopes, and a few other things.
I enjoyed the heck out of it, but man what an eye opener. I figured my range was going to be 150 max, and after practice, decided it was 100 yds in the field. Open sights, round ball, .54 cal, started grouping about 6-8" at 50 yds, and after A LOT of practice I was under 3" at 100 yds. It was frustrating from the standpoint of grouping when I am used to 1" or less at 100yds with rifles. having not shot a muzzleloader for 25 years, last time being a teenager, it took some getting used to.
I will definitely do it again! And in the mean time use the muzzleloader now and again at the range to keep up on practice.