I have a 25 wssm in the winchester model 70 target stock, bull barrel ,and a nikon 6-18 with 600 yd bdc. I have used it on coyotes and whitetail, dropping deer in there tracks at 485yds. As far as ammunition, I load all my own stuff. I can only speek for myself in saying, this gun is a machine when it comes to long range shooting.