User blog comment:FirestormNemesis/WEAPON EFFECTS/@comment-26923519-20170306174533

Hey, I'll answer your questions:
 * 1. I do not have full confirmation on this, but I believe that they don't have a difference.


 * 2. Piercing Shot is when a bullet can go through multiple players.


 * 3. From what I have observed, Charm is just like the Poison, Burning and Bleeding attributes.


 * 4. Weapons with the Chain Shot attribute have bullets that can pass through multiple players through a trail multiple times per shot.