I have done most of my ruminant killing with:
95 gr NBT 6mmBR
115 gr NBT 257 Roberts AI
120 gr NBT for the 6.5-06
130 gr NBT for the 270
140 gr NBT for the 7mmRemMag
125 gr NBT for the 300WinMag

I deviated from optimum on the last one.

There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. -Ernest Hemingway
The man who makes no mistakes does not usually make anything.-- Edward John Phelps