The first question,
I only hunt with a muzzleloader. That being a White Super 91, and a White G-Series Whitetail Hunter. I can't help on the others, but I shoot a 460 grain NoExcuses Pure lead conical being pushed with 85 grains of 777 ffg, fired off with a Remington #11 primer. I have a Burris FFII BP on the 91, and a Lyman SMET on the Whitetail! Been hunting that way for over 5 years even thou Mississippi made single shot break actions rifles that are period before 1900 in 45/75 or any bullet being the size of 38 cal or larger. 44 mags, 444, 38/55, 500 SW, and what ever.
I just get a kick our of muzzleloding.
Surveyor