Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
2.5-4% Bonus Critical Chance on Chained Hit. Stacks 5 times.
4.5-6% Critical Chance for each expended round in your weapon (resets on reload).
14-20% Ranged Critical Chance after Melee Kill for 2.5 seconds.