Your plan is to shoot deer at 1k?? My recommendation would be to go with the Berger 180grain hybrid. The 168/162 grain bullets are great inside 600 yards but when the distances start to get long, the BC of the 180 really starts to shine. A buddy of mine has a 7saum built on a short action. With Retumbo, he is able to send them at 2900 out of a 26" barrel.
http://www.longrangehunting.com/forums/f53/my-7saum-hawk-hill-custom-135561/ sends the 180s at 3000+. We know from many experiences related on this forum that the Berger hybrids are excellent hunting bullets.