When I carry one of my several 9mm autos it is loaded with 124 gr fmj
ammo that I have chronographed and know is warm and consistant.
What's the difference between a HP bullet that fails to expand beyond
bullet diameter for whatever reason and a 124 gr fmj bullet? Bullet
placement and penetration are what counts. No high tech super bullet
is going to compensate for poor shot placement. I suspect that many
people who choose expensive HP ammo for carry will not want to
spend the money required to run a few hundred rounds through their
guns to test reliability.