My experience with expensive scopes is limited for muzzleloader. It have a Nikon Omega 3-9x40 that is just outstanding. I does not have the BDC and that is fine with me. I had that BDC on a Redfield many years ago and discovered.. I never used it. I learned my rifle and the hold over and just shot that way. BUT if the BDC is something your interested in, then by all means use it.

The other really great scope in my arsenal is a Bushnell 3200. All I can say is WOW!! Great glass, the rainguard makes it fantastic in the snow storms where I hunt, focus is fast and clear, and it had never moved off mark. Again this does not have the drop compensator. Again.. that's my choice.

A inexpensive scope that I can not say enough good things about is the Nikon Pro Staff. I have four of them on rifles. I like the 2-7x32mm model with the great eye relief. They gather light excellent, they are tough as nails, great glass and do not break the bank. Actually I flat out like that scope. On a muzzleloader shooting out to 150 yards.. I don't think you'd have any problems. I never take running shots and I am certain before I pull the trigger. With any of the three mentioned you could not go wrong.

For cheap scopes, the Simmons line have some really tough scopes, and so does Bushnell. I have a Bushnell Banner Dusk to Dawn 1.5-4.5x32mm on my Black Diamond. I remember one deer season standing there talking to hunters and one noticed I had a scoped muzzleloader instead of a modern rifle. He asked if he could look at my rifle, and I had no objections. When he looked through that $70.00 Dusk to Dawn scope, he comments on what a excellent scope that was. When I told him what I paid for it, he could not believe a scope that cheap was that clear.