N550 works well in my .17P, but, does take second place to Big Game. Not by a lot, accuracy is equal, but I see a bit more velocity with the Big Game.
I burn a lot of N550 in other stuff, it's one of my favorites. But as far as cost goes, around here, the VV stuff is hideously expensive and the Big Game is as affordable as anything. I've recently seen 8 lb jugs going for ~$165 or so.
- DAA