I need some advice. In my 600 yard f-class rifle what would be better? The 180 berger vld , and the 175 smk or the berger 168 vld and 168 smk? What I'm trying to ask what's better a little higher BC or a little higher FPS? With the 180 and 175 I can get about 2780 fps out of my 284 win. With the 168 I'm hoping to get around 3000 fps.