I shoot 155 gr bullets because that is what the rules require for my type of shooting. I have used 168's for 300m ISU matches, but found they don't shoot any better than 155's so I don't bother with 168's anymore.
Like Blackcloud says SMK's are the easiest to get to shoot well. I seat out to touch the lands with all my bullets so for me the bullet jump isn't a factor.
Berger's shoot very well as do Lapua's but really start to shine out passed 600 yards. So shooting them at short range is a bit of a waste of a good long range bullet.
One bullet that does not get that much attention is the 155 gr Nosler. From what I have seen they are even a bit better than SMK's.
For long range, Berger VLD's or Lapua , Noslers then SMK's in that order. I would not feel out gunned using any of the above out to 1000 yards.
For short range 600 yards and under Nosler, SMK's.
I have never had any luck with 155 gr Hornady but I know people that rave about them.