Talk:Piercing Hit/@comment-216.114.84.113-20130426140540

IT works similar to other elemental damage.

It adds bonus damage of a specific type to your weapon.

for example:

If you have a gun that does 10 damage base, and you add a rank 6 Piercing Hit mod (+60%)  to that weaon. Your damage will be 10 base damage that does not ignore armor, shields, etc. Plus 6 damage that ignores armor.