ORIGINAL: Brush hunter
Varmits are one thing, deer is another wake up. Unless you have a tack driver this seems to just be a hairbrained idea. But than that's just my thoughts.
One bullet I am aware of that seems to do both things pretty well is actually a "varmint" bullet, the 85-grain Sierra HPBT. But the people I know who've used it on deer say it is pretty effective for that too.
However, my "one choice" for thje 6mm bore size is the 95-grain Nosler Partition......