Mithril cannon

Mithril cannon
Icon
Type							Cannon
Released							19 November 2025 (Update)
Hotspot							Facility
Options							Operate, Check-ammunition, Reset-ammunition
Examine							A solid cannon made of mithril.
Advanced data
Object ID							59449
Icon Item ID							32202

Mithril cannons are a type of cannon that can be built on a boat, requiring level 20 Ranged to operate. It can be built at specific facility hotspots on the boat, requiring level 57 Sailing and 50 Construction to build, granting 816 Construction experience.

The mithril cannon attacks every 7 ticks, and can fire up to mithril cannonballs. Crewmates with at least level 3 Privateering can be assigned to operate the cannon, as long as the player has the required unboosted Sailing level. Oarswoman Olga is the first unlockable crewmate meeting this requirement at level 65 Sailing (boostable), so players wishing to assign crewmates to a cannon before this level may wish to maintain a steel cannon instead of upgrading to mithril.

Only one cannon can be built on a raft and skiff, while a sloop allows two.

Requirements

Skill		Level	XP
Sailing		57 (b)	0
Construction		50 (b)	816
Members		Ticks	5 (3s)
Tools		Facilities	None

Materials

Item		Quantity	Cost
	Mahogany plank	4	7,492
	Mithril nails	16	1,232
	Mithril bar	8	7,664
Total cost			16,388
	Mithril cannon	1	N/A

Tier		Level	Level	Level	Accuracy	Heavy Ranged Accuracy	Strength	Privateering
	Bronze	28	21	1	30	30	8	1
	Iron	35	28	1	42	40	10	2
	Steel	47	39	5	60	60	12	2
	Mithril	57	50	20	78	70	15	3
	Adamant	69	61	30	98	85	23	3
	Rune	80	76	40	163	110	26	4
	Dragon	92	84	60	194	150	32	4

module=Cannon_max_hit_calculator
form=CannonForm
result=CannonResult
param = name|Player name||hs|ranged_lvl,5,1;sailing_lvl,24,1
param = crew_toggle|Fired by|Player|buttonselect|Player,Crewmate|Player=ranged_lvl,ranged_str,void,prayer;Crewmate=crew_select,sailing_lvl
param = sailing_lvl|Visible Sailing level|1|int|0-104
param = ranged_lvl|Visible Ranged level|1|int|0-112
param = ranged_str|Visible Ranged strength|0|int|0-65
param = crew_select|Crewmate|Jobless Jim|select|Jobless Jim,Jolly Jim,Sailor Jakob,Ex-Captain Siad,Adventurer Ada,Cabin Boy Jenkins,Spotter Virginia,Bosun Zarah,Oarswoman Olga,Jittery Jim
param = cannon_type|Cannon|Bronze|select|Bronze,Iron,Steel,Mithril,Adamant,Rune,Dragon|Bronze=cball_bronze;Iron=cball_iron;Steel=cball_steel;Mithril=cball_mithril;Adamant=cball_adamant;Rune=cball_rune;Dragon=cball_dragon
param = cball_bronze|Cannonball|Bronze|select|Bronze
param = cball_iron|Cannonball|Bronze|select|Bronze,Iron
param = cball_steel|Cannonball|Bronze|select|Bronze,Iron,Steel
param = cball_mithril|Cannonball|Bronze|select|Bronze,Iron,Steel,Mithril
param = cball_adamant|Cannonball|Bronze|select|Bronze,Iron,Steel,Mithril,Granite,Adamant
param = cball_rune|Cannonball|Bronze|select|Bronze,Iron,Steel,Mithril,Granite,Adamant,Rune
param = cball_dragon|Cannonball|Bronze|select|Bronze,Iron,Steel,Mithril,Granite,Adamant,Rune,Dragon
param = prayer|Prayer|None|select|None,Sharp Eye,Hawk Eye,Eagle Eye,Dead Eye,Rigour
param = void|Using Void Knight Ranged set?|None|select|None,Regular Void,Elite Void 
param = perildance|Using perildance bitter?|false|check|true,false
autosubmit = disabled

• Cannons benefit from the player’s ranged accuracy and strength bonuses. Ranged strength bonuses from the weapon, shield, and ammunition slots are excluded from this calculation.
  • Take precaution with items where the applied strength bonus is conditional, eg. a charged Dizana's Quiver.