The larger caliber rifle he is using is a 7mm STW, some of the smaller ones are 243, and 22-243. I had it figured that he was using big 30's! He is using berger bullets for all as far as I can tell. The scope you see on his rifles all look like Horus. There web page is www.horusvision.com
if I remeber it right. Anyway that's about all I knoow for now.
Oh in the 243 he used a 105gr berger VLD, and a 168 VLD in the STW.
Good Hunting Brian, Anchorage Alaska