wanted to try my hand at a long range shot on a whitetail this year. i will be using my 6.5 284 long range comp gun which is in the light gun category. the gun with hold .250 moa to 600 if i do my part. the load it shoots best is 142 smk and h 4831 sc. i am leary about using the matchkings but have several other choices available. please feel free to voice you opinions. im looking for good terminal performance at extended range. thanks!