Rune thrownaxe

The rune thrownaxe, like all thrownaxes, is a members-only Ranged throwing weapon and is the second most powerful type of throwing axe, behind the dragon thrownaxe. To wield a rune throwing axe the player must have at least 40 Ranged.

The door-supports that block access to lower floors of the Waterbirth Island Dungeon can be destroyed using a rune thrownaxe special attack on the middle support. As the doors usually require another player to open, players without level 85 Agility for the rocks shortcut to skip the doors often use one to reach the Dagannoth Kings conveniently.

The combat achievement From One King to Another requires the player to kill Dagannoth Prime using a rune thrownaxe special attack bounced off Dagannoth Rex.

The rune thrownaxe has a special attack, Chainhit, that ricochets off the target and hits multiple other opponents within a 3 tile radius (forming a 7x7 square centred on the target) at the moment the special attack is initiated.^[1] Chainhit can only ricochet to other enemies in a multicombat area. This special attack can target up to 5 opponents, but a rune thrownaxe will not rebound back to its original target after chaining to another enemy.^[2] Furthermore, an accuracy roll is made after each target hit by the thrownaxe, which will end the sequence if failed.^[3]

Each hit consumes 10% of the player's special attack energy, i.e. three hits consumes 30% energy. This special attack uses a custom form of damage calculation that does not take into account offensive Prayers (such as Eagle Eye) when determining a player's maximum Ranged hit.^[4] In addition, the attack speed of Chainhit is one tick slower than the rune thrownaxe's regular attack, meaning the attack interval is 5 ticks (3.0s) on the rapid style, and 6 ticks (3.6s) on accurate or longrange.

The following formula can be used to calculate the max hit of Chainhit:

Maximum Hit=⌊0.5+(Visible Ranged Level+10)*(Ammo Ranged Strength+64)640⌋ ^{[a] [b] [c] [d]}

• They are one of only two rune metal weapons to have a special attack, the other being the rune claws.