I’m gonna go out on a limb here and maybe make a few people upset. Many people that tell you that they shoot 1 inch groups at 100 yards with a muzzleloader are lying. I’ve been shooting matches for 20+ years. Even the best shooters have a great day when all holes are in the black on an NRA target at 100 yards. I can nail 1 inch or maybe clover leaf rounds at 50 most days but I’ve never gotten better than a four inch group at 100 yards. Some matches I’ll have a phenomenal 100 yard target. The next match I’ll be all over the place. That’s with numerous rifles. Wind, sun, humidity, rain. All those affect the outcome. Sometimes we assume our loads just aren’t right and keep experimenting to no success. Sometimes it’s just that we aren’t that good, our sights aren’t up to par, the sun is shining in the wrong direction and let us not forget the wind. The range where I shoot matches is always windy. My eyes aren’t the best either using iron sights. Focus on getting better groups at 50 before you even consider shooting at 100. If your sights hinder you at 50 then they are gonna kill ya at 100. Keep practicing and working on those loads. Let a better shooter have a go with your rifle at 50 also. See what those results are. Sometimes it’s just not the rifle or the load. Sometimes we just have a bad day or aren’t as great of a shooter as those folks claiming scoped bolt action accuracy at 100 with an iron sighted muzzleloader. Do those phenomenal 10x 100 yard 1inch targets exist? Yes. Can they be duplicated on a regular basis? Probably not.