Krutekki

Hello, I've been playing Dryad for a while now and reached level 29, however I've noticed something odd: Whenever I use Ravaged impact with a bow it doesn't seem to count the extra damage that I should do, when I use a blow pipe the skill does way more damage. it seems that whenever I do ravaged impact with a bow it just shoots a regular attack twice. dealing let's say 300 damage, with a blowing pipe it's easily 600 damage x2. Maxdamage of the bow: 82. Maxdamage of the pipe: 62. Is this correct, or did I mess up my build somewhere? I'd like to use bows instead of pipes. Please help me out!