I can't get 129 Hdy spire points above 2700 through a 18" bolt gun without running into pressure so I'm betting your up there. Factory ammo may also have the luxury of using proprietary, blended powders that we might not have the ability to use. So it's hard to guess across a keyboardfor some context:
this is a factory ammo,,,, FGMM load using 130 bergers, in a 16" criterion barrel with rifle length gas tube on an ar10 platform.