Dickley,

I shoot the 45 encore with 100gr pyrodex and a 155gr t/c xtp.When I first went to the range I had the 155xtp,180xtp and 195powerbelts. At 50 yrds I cloverd the 155' s with open sights 5inches high and three inches to the right.the 180gr were pretty spread out and the powerbelts had a group about 2inches but shot low and to the right.I have always liked shooting the lighter grain bullet for the flatter shooting.Try shooting some diff weight bullet and charges to see what your gun will do.Good luck