I use 3.3 of VV N320 at 1.125 with the 147 blue bullets due to a short throat on my production gun. What a sweet loading, clean burning, smooth recoil, and they are quiet as as a mouse fart when I run them through a suppressor.
But I was slightly disappointed with my last 2,000. It seemed like the coating wasn't adhered to the bullet as well. Hopefully it was just a bad batch and not a change in their production.