My experience with the SSII is with the 90gr 6mm version in the 243. I've shot them into 8 (or 9?) whitetails over the last couple seasons with VERY good luck. Shots have ranged from 60-250yds and have been from quartering-away to almost straight on. All shots have exited save one. I had a shot on a good buck that was about 160yds and a raking shot. I shot him offhand and the bullet clipped the onside hip going in and he went right down, he had a little wiggle left in him and I don't like critters getting up so I put a second one in him very quickly. When I cut that buck up I found one of the bullets in the off-side shoulder. I don't know if it was the first, or second, shot that I recovered. The bullet was textbook though and weighed 81.6gr and measured about .500". All other shots exited.
I've heard of other guys jumping the SciroccoII's, or having issues getting them to shoot at all. The rifle I'm running them in is a lightweight 243 and I was happy with how they shot. I run moly in most of my rifles and this one was no exception. I started load work up, after I coated them, with them in the lands and they shot pretty decent for what this rifle is intended for and they shoot very close to the same POI at 100yds as the 75Vmax load that I use for general shooting.
This rifle also shoots very well. This was at 500 while just shooting off a pack for a rest.