Sometimes I'm not all that bright. I've been shooting 100 gr with the assumption that I'll need approx 500 ft lbs energy at 100 yd for a clean kill with a round ball. Now I got to thinking, there isn't anyplace where I hunt that you would see a deer at 100yds. All of the deer that I have shot with centre fires, the longest was at 35 yds and 50 yds would be a maximum range for me to shoot in any of those area's.

After going through this table http://members.aol.com/illinewek/faqs/tc50bal.htm I can easily achieve this with 70 gr of what I presume is 2f powder.

Man I need to start listening to my elders.