A friend gave me a pound of N570 to try in my winmag with 215 hybrids. In a 26"1:9 bartlein, it ran a comfortable 2930. It's great for speed but it comes at a cost.
With my load for a 215 using magpro, you can touch the barrel after five shots no problem. With N570 after five it'll burn you.
I will say though, I did like how easy and consistent it was to get low single digit sd's with it.
I know nothing of VV powders, what would be another good one for the winmag ? I'd prefer to stay with their temp stable line, which is their 5 series correct ?