Well I emailed Speer to find out. The response I got said that the bullets are all different by part number. What I am curious about is if the nose cuts are the same on the 54234 bullets used as the 53918 ammo. Anyone have a box of both to compare by chance? Or a box of the 53918 ammo? I have a box of the other (54234). I'm thinking they use the same 6 petal bullet loading in two velocities for these loads. And they obviously sell a 5 petal gold dot bullet in 20 rnd boxes in stores to the public. (23918)
Federal and Winchester do similar things so this wouldn't surprise me.
Anyone have a box of the 53918 or both to compare the nose cuts?