I had a couple of 6.8 uppers and my dad now has a mini 6.8 and he loves that gun.

Quick dispatch of most any deer or hog.
We have killed about 20 hogs and none of them have run over 20 yards.
A lot drop on the spot.

The goto bullet for hogs is ether the 110 gr tipped or 85 gr barnes tsx.

I would want something bigger for a bear personally, but there is a guy on arfcom, I believe he is a teacher that killed a black bear with his 6.8 with 2 shots 110 gr barnes tsx bullets. There have also been a couple of Elks killed with one. One was a 5x at 380 yards in colo with a 110 gr accubond I think.

The 110 gr barnes is way overkill for deer. The 85 gr is good though.
110 gr prohunter is also good for deer.

A 458 socom or a 50 beowulf would make a better bear gun.