RE: 200 yds with Barns 245's
 

ive NEVER been able to group anything w/ 150 grains w/ my knight disc. all i ever got was a SORE shoulder.

RE: 200 yds with Barns 245's
 

The Knight rifles are made for shooting sabots. Are you cleaning in between shots? Maybe back the load off to 130 grains (two fifties and a thirty). Not all bullet/sabot combinations will take that much heat and pressure. The Barnes 250 gr. Expander MZ's and the 250 gr. T/C Shockwaves have shot pretty well for me with magnum charges.