I agree that you should try different powder charges with the same bullet. I have CVA Bobcat .50. I have tried 6 different bullets and a roundball, and powder charges ranging from 50 to 100 grs of pyrodex RS and have found that it LOVES 80 grains of powder behind a 245 gr. Buffalo Ball. I will try 80 grains behind other bullets here in the near future. This will print iside 2" at 50 yds. Max range about 70 yds for up to elk. If I change the powder charge at all, I can't hit the broadside of a barn. Try different charges, you might be surprised! Good luck!