Try 140 AccuBonds. They shoot really well out mine.
43 grains of Big Game gets you approx. 2740 fps.
Not a barn burner, but a very accurate load and at a velocity that will reliably open the AB at the ranges you mentioned.
JM
JM, what length barrel does your 7/08 wear? Have you ever tried 120gr bullets with Big Game? I ask because I've been tempted to try Big Game in my Model 7 in 7/08. Thanks.