kkeiser
Strictly my person preference, but for a muzzleloader I really do like the Mil Dot with my second choice being a dual X - you can also use the dual X as a drop calculator but it is not as clear as a mil dot....
Nikon is offering a new scope Nikon Omega 3x9x40 BDC (bullet drop compensator)
Here is what they look like - but the price is a little high
http://www.cabelas.com/cabelas/en/templates/links/link.jsp?id=0039992712568a&type=product&cm Cat=search&returnPage=search-results1.jsp&QueryText=nikon+scopes&N=4887 &Ntk=Products&Ntx=mode+matchall&Nty=1& amp;Ntt=nikon+scopes&noImage=0
Good luck in your search