The 350 gr CE lazers. Tested those and the flatline 361’s. The lazers grouped great at 100 and had good SD’s. The flatlines BC is over 100 points higher and that really shows up down range. They stay supersonic like 200 yards further. The flatline 361’s were the same speed as the 350’s which was impressive. And they seemed to group tighter and were more consistent at 2000-2300 Yards where I was testing.