I feel your pain with the Cor Bon. Many seem to like to think that they are the best thing since sliced bread but a couple of experiences I've had with their ammo or have seen others have on the internet FWIW, have been less than stellar.
I still like some of their loadings and concepts but I generally load up with ammo from the larger manufacturers. One PD in my area, a cop friend of someone I knew wanted me to get him some real hot 9x19 +p+ jhp for duty use for some reason.
I tried to do it the easy way and just get him Cor Bon +p but he told me his dept did not allow cor bon! Maybe they were on to something there.
Dawei, neat to see a jacketed round getting expansion at snub velocities, I'll have to see about trying some of those maybe. Interesting to see a USA PD issuing a foreign ammo for duty use. Is the ammo for the larger calibers also a foreign load?