Thanks all for the replys,3584Elk I am also in CO. I will take note of the load you recommended.It sounds like a good one for Antelope which is the primary reason I got this gun{plus it was cheeep}I will also use it for Prarie dogs but with a lighter bullet.I have sluged the bore it is knee deep in riefeling and the bore looks good and sluged at a satisfactory 6.5mm.any others with info please keep posting thanks agin