Id just run the pmc ammo. A 270 Winchester 150 grain velocities aren't hard on bullets. My guess is that bullet is going 2850-2900 at most which is not going to destroy the bullet. Stick it in the crease and get to packing
Unfortunately that was a box laying around. Doesn’t look like pmc even makes 270 ammo any longer and I couldn’t find the 150grain elsewhere online