Here's a link to a handy free down load to figure drop and drift of your load.
http://www.ctmuzzleloaders.com/ctml_experiments/rbballistics/rbballistics.html
Dang me,, I can't get it to open,,, will try to copy and paste to browser,,, flwa
Thanks much that is super helpful. ET thmbsup 'shok'
Good source of information.. Thanks Dogshirt..