Cannot confirm this 100% at the moment, however, in my experience, when the bounty says melee abilities, it basically just means melee kills. For example, let's say I'm on Top Tree Dawnblade. I use my ranged melee on a red bar enemy. Now I don't have a melee ability charge. I now proceed to use base melee (Warlock Palm Strike, i.e. a non-charged slap) to just melee kill enemies. Each non-charged kill counts toward bounty progress. Again, need to go and actually playtest this to confirm, but in my experience I believe this is what the bounty is asking for. All that said, ranged melee abilities should absolutley give progress. If I am correct though, this means you don't need to wait around for your melee ability energy to re-charge. You can simply smack some fools and go about your business. Edit: I have tested my theory in regards to two different bounties. One required "Melee Ability Kills" while the other required "Melee Damage". My theory proves true regarding these two types of bounties. This link shows video evidence: [url=https://youtu.be/YoJRqUsh4lY][/url] Armed with this knowledge, you can progress these bounties relatively quickly. Edit: finally had time to test the bounty in question. "Defeat enemies using Solar melee abilities." The original poster is correct, and this bounty cannot be done on Top Tree Dawnblade. Others have mentioned using a Sword Hilt to brute force the bounty. Hopefully Bungie addresses any issues surrounding ranged melee abilities, such as not being able to properly complete bounties, or more importantly having Celestial Fire, Ball Lightning, and any other affected abilities work with exotics, such as Winter's Guile.