Re-reading your post brings up a couple of points. I have hunted California, Colorado, Utah, Texas and Arizona. All are different and it depends on what you hunt. For example, in California, you can't have a scope on a muzzleloader during muzzleloader season. In Arizona, you can. As I remember, in California, I think you can use any propellant but in AZ it must be black powder or a BP substitute so a muzzleloader shooting smokeless powder wouldn't be legal there. Don't hold me to being absolutely correct on those examples as I didn't research each states laws. Colorado is under fire now by black powder shooters because of bullet restrictions. Something about the length must be so many times longer than the diameter or something like that. To top that off, some sources say you can measure the poly tip of the bullet to make it a legal length and others say you can't so the same bullet could be legal or illegal depending on who you talk to. I usually shoot a Hornady HP/XTP bullet in my Omega. When I went for the hog, I had to use a Barnes Expander MZ bullet because Bert's place is in the no-lead "Condor Zone". I worked at Lake Powell last summer, which is on the AZ/UT border. When I hunted coyotes, I stayed in UT because they don't require a license or anything. AZ requires a license to hunt coyotes. Other than the license/no license issue, anything goes when hunting coyotes. I think you could even use a howitzer if you wanted to. As far as extending hunting seasons to include the muzzleloader season, in most states, you would have to use a "primitive" muzzleloader with iron sights. Some states exclude an in-line as a "primitive weapon" so it can't be used during a ML season at all. Now, for the general season, ANY muzzleloader in any configuration can be used. Any sights, any ignition system, any powder. I don't know of any state that makes any restrictions to a muzzleloader during the general rifle season. It's only during the muzzleloader season that you have to watch the regulations. So, with that rifle you referenced earlier, you could use it during the general rifle season but, in most states, you would have to take the scope off during muzzleloader season and in one state I know of, you couldn't use it at all because it uses an in-line ignition system, which they don't allow. Hope that helps.