Bummer… I was just looking on Hornadys 4DoF app earlier today and they are saying that the 62 will have a sg value of 1.4 at the muzzle at 3100 fps at 4600’ elevation… i was hoping to develop a load for them in my new 223AI with a 9 twistI shot them at >3300fps out of a 9 twist 223AI, they didn't keyhole but groups were 4-5MOA. I know some people have gotten them to stabilize in a 9 twist at much higher speeds.