I thought some of you guys following the threads on the effectiveness of roundball for hunting might be interested in this.
http://www.muzzleloadingforum.com/fusionbb/showpost.php?post/221472/

Pglasgow, I don't know the B/C of a 5 bore roundball and I have no idea what king of velocity it would obtain when pushed by 420grns of Fffg blackpowder, but it sure would be interesting to see the Taylor Index on this.