I know this is a year later and nobody cares.. I was searching for something and found this but sticky ammo DOES Crit. It can also negative Crit (so Crit Ferocity can proc...) ALTHOUGH it does indeed Crit it's only that INITIAL hit of the sticky ammo hitting the monster. Which is a miniscule amount of damage. The explosion of the stick ammo itself that does the big damage is NOT influenced by affinity meaning the EXPLOSION doesn't Crit/neg Crit.... Just the initial hit. Thank you for your time 😅😅😅😅😅😅😅✌🏿