I have a .50 TC Encore. So far I have used only Pyrodex pellets and 245 or 295 grain sabots (different brands) or Powerbelts. At 100 yds the bullets are generally hitting in the 8 in circle but anywhere in that circle. One may be 3 in. to the right and the next shoot may be 3 in. to the left and 4 in. low. It's very frustrating going to the range and getting the same unacceptable results time after time.

Is the next step to continue to try different projectiles or different propellant? I'm lost so any information would be helpful. Thanks.