Thanks guys.
And yes Daryl. It was the 160 grain Sierra Round Nose bullet I killed the buck with last year. The doe was killed with the 156 grain PPU.

The PPU is even more accurate then the Sierra, and I never thought I'd say that.

My friend Randy has a 260 Rem which also shoots the Sierra super well. But they quit making them, so we have to try others and the Hornady seems good and from kills I have seen shot from the 260 and the 6.5 Swede, it's pretty good on game, but in my rifles and in Randy's rifle the Sierra was better.

Now I am VERY pleased with the PPU 156 grain, but one kill with a neck shot is not a very "in-depth" test.
So far so good however.