I want to build a 300 blackout capable of precision shooting at either muzzle velocity (MV) range. Is there any difference in twist rate required to stabilize a 30 cal round when shot at subsonic versus "normal" MV. Back of my mind I know twist rate will generate bullet RPM that is proportional to MV - so 1050fps would spin less than half RPM of normal MV with obvious implications for rotational inertia of the bullet. I have never seen MV mentioned when choosing twist rates, only bullet weight which would say pick the twist for the projectile and go with it. Is this the right way to go?