Of course, the optics question will depend upon a few things:
1) At what range are you likely to encounter the game?
2) will you use the gun at night? If so, when hog hunting, will you be using NVD's?
3) How much can you afford to spend?
Here are some answers:
If you range is going to be 50-200 yards, then you should be fine with either Aimpoint, Eotech or similar unmagnified dot. The less magnification, then generally speaking, the faster you can acquire the target. Zeroing at 50 yards gives you a MPBR that covers from 0-200 without much holdover or under.
If you are only hunting deer, then you'll be shooting only during daylight hours. For this purpose a Leupold, Zeiss Conquest or Swarovski scope of 4X, or perhaps 3-9 X will work great.
If your budget allows $2000 for a scope, then get the Zeiss or Swarovski. If more like $500, then get the Leupold or Nikon.
As for bullets, the SPH or Nosler Accubond should work well.
The king of all 6.8 bullets right now, however, is the Barnes TTSX, IMO.