@Ajgall raises another good point in the debate between having a smoothrifle as a one gun for all muzzleloader or having a fowling piece for shot and a rifle for round ball game.
What type of game shooting does one do the most of?
Often we read of hunters choosing the smoothbore for it's versatility and because the area they hunt doesn't offer much deer shooting past 50 to 75 yards. Okay. That is my situations too. But, I also have a lot more shooting opportunities with shot than with roundball. I have many months of squirrel season with a fairly generous bag limit, a few months of pheasant season with a generous bag limit, a little over a month of spring turkey and a bag limit of 5 bearded birds, one month of fall turkey with a limit of 3 either sex.
But, while with our new regulations I have a few days more than a month of shotgun deer season in during which I can use my flintlock now,,, I am only allowed 1 deer off state land, then a 10 day muzzleloading season and again only 1 deer, and let's face it, by that point those deer have been pushed around and harrased by archers, shotgun hunters, small game hunters for months as well as the usual non-hunting recreational folks in the woods....
I know some thick places offering the same limits on shot distances for deer in other states where deer bag limits are higher and so are your chances and opportunities to shoot more than one deer. If I lived there I probably would more strongly consider having 2 guns and one of them being a rifle.
Around here, with its limited use, a rifle just doesn't seem practical, a nice fowling piece is great and a thing of beauty and artistry but if most game using shot is taken in a rifle like manner instead of on the wing, again, it doesn't seem the best way to spend one's gun money. But, a smoothrifle,,,,,,,