Of the three bullets you've listed, I'd go with the 140 grain Accubond first. That weight in a 7mm SAUM will give you all the velocity you'll ever need (flat shooting) plus great terminal performance. I've never experienced problems using Sierra GameKings, though some folks have had jacket/core separation issues, especially at close range. And the 120 Nosler BT is a bit light for the job (even though some folks swear by it for big game). Just my $.02 worth!


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