I've been running the 124HH for 6.5 PRC, 3200fps. Shot a few coyotes, mixed results on those. Not large exit holes, they seem to run a ways after being hit. 2 deer, one at 75 yards, DRT. the bullet shed all petals. Another shot at 250, hit in high shoulder, bullet ran up and into the spine, then traveled about 4 " up the spine, unbelievable, strange.
166HH 30/06- 150 yards , 3000fps. Mule deer DRT. I load for a step dad. 300 Ultra Mag 166HH 3450fps, 275yards, cow elk DRT, brother in-law shot it.
Overall I like them, but the Coyote shots made me pause, wishing for lead. They came out with 115 Power Hammer in .264. When I need more bullets I'll be switching to the Power Hammers. They have a larger hollow point for better expansion and shedding. Speed is your friend with solids.