Bob, this is interesting and certainly explains the difference I was thinking I had between the data Jeff gave me and the calculations Winchester made when I gave them the velocity data. Using the convention that you describe makes the numbers come closer together. The data I got from Winchesterwhen they ran their program was: (sighted in at 50 yards with a 0.9" sight height - mine measures about 0.6")
50/0; 100/-1.4; 150/-6.0; 200/-15.0; 250/-29.9; 300/-52.2.
Thanks for the clarification
Dadu
