Fireforged Trigger trait doesn’t reduce the recharge on elixer gun abilities, for example when you use Super Elixer with the trait active, the cd timer starts at 15, then after a tick goes to 19 and starts counting down from there
Edit – It appears that the trait Rifled Barrels overrides the Fireforged Trait for Elixer guns when both are active, so right now you can’t have both the range and the reduced cd for elixer guns at the same time.