Elemental ammo can "Proc", meaning they have a random chance of causing major effects like freezing/burning an enemy, in addition to the different damage they deal.
What determines the frequency at which these effects happen? Is it a random chance per bullet (meaning higher rate of fire = more elemental effects) or is it more complex than that?
Borderlands had a very complex Elemental Proc chance system so I'm wondering if ME does as well or if proc chance is different for each type of gun?
I'm interested as this is important for the effectiveness of sniper rifles (and shotguns) because a % per bullet chance means they're going to Freeze/Burn an enemy way less often, making some ammo less helpful in those guns.