They have the same BC and SD as the v-max. I've shot them in the 204, 223, 22-250, and 243. They shoot to the same POI as their vmax counterpart as far as I can tell.
I did kill one coyote with the 50 zmax out of a 22-250 at 85 yds travelling 3,900 fps muzzle. It was a double lung shot slightly farther back than I should have hit. Small entry, half dollar size exit with part of the lungs blown out. Coyote went 90 yds before piling up. One shot on one coyote doesn't mean much. It surprised me that the zmax shot right through him though.