I run sierra 150gr SBT in my 308, loves them. I would give 165gr SBT a try seeing as you are only doing bush hunting. I have not tried it yet as I wanted to keep the speed of the 150gr projectile for longer shots as I was not using a dial up scope. I have tried Sierra 180gr RN too, they shot well and totally pole axed goats I have shot with it. Great expansion.
I will be trying the 165 in the near future as my 308 will becoming more of a bush rifle.
cheers
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