For me, it's the 108 Scenar at 3200 fps. Sub .5 MOA at 500 yds from a Mountain rifle contour. I have a 9 twist.
You can push the 130-140s faster than 2900 if you use a 8.5 or 9 twist without giving up accuracy. An 8 twist for some reason, likes the 2850-2900 range. It takes a LONG barrel to do it too!
I can stabilize the 130s in my 9 twist at 5500' (my old range) but here in the desert it is only marginally stable.
