[Home](/) / [Module](/categories/7-module) / [Projectile Weapon](/groups/55-projectile-weapon) / [720mm Prototype Siege Cannon](/types/9457-720mm-prototype-siege-cannon)

# 720mm Prototype Siege Cannon

Market: [Ship Equipment](/market/9-ship-equipment) / [Turrets & Launchers](/market/10-turrets-and-launchers) / [Projectile Turrets](/market/87-projectile-turrets) / [Artillery Cannons](/market/560-artillery-cannons) / [Medium](/market/578-medium)

Projectile Weapon · Module · Tech I

## Facts

| Fact | Value |
| --- | --- |
| Mass | 50 kg |
| Volume | 10 m³ |
| Capacity | 0.25 m³ |
| Radius | 200 m |
| Portion size | 1 |
| Base price | 74,980.00 ISK |
| Published | Yes |


## Prices

| Market | Value |
| --- | --- |
| Jita 4-4 sell minimum | 71,980.00 ISK |
| Jita 4-4 buy maximum | 50,000.00 ISK |
| The Forge sell minimum | 71,980.00 ISK |
| The Forge buy maximum | 50,000.00 ISK |
| Sell volume | 5599 |
| Buy volume | 107542 |
| Snapshot loaded | 2026-09-08T04:53:08.649Z |
| HTTP last modified | 2026-09-08T04:19:51.000Z |
| Source | esi |


[Order book](/types/9457-720mm-prototype-siege-cannon/prices) · [Price history](/types/9457-720mm-prototype-siege-cannon/history)

## Fitting

| Attribute | Value |
| --- | --- |
| CPU usage | 25 tf |
| Powergrid Usage | 225 MW |


## Structure

| Attribute | Value |
| --- | --- |
| Structure Hitpoints | 40 HP |


## Capacitor

| Attribute | Value |
| --- | --- |
| Activation Cost | 0 GJ |


## Miscellaneous

| Attribute | Value |
| --- | --- |
| Used with (Charge Group) | 83 groupID |
| Charges Per Cycle | 1 |
| Charge size | 2 1=small 2=medium 3=l |
| Meta Level | 3 Level |
| Overload rate of fire bonus | -15 % |
| Reload Time | 10 s |
| Required Thermodynamics Level | 1 Level |
| Tech Level | 1 Level |


## Required Skills

| Attribute | Value |
| --- | --- |
| Primary Skill required | 3305 typeID |
| Secondary Skill required | 3300 typeID |


## Turrets

| Attribute | Value |
| --- | --- |
| Damage Modifier | 9.17 x |
| Accuracy falloff | 17500 m |
| Optimal Range | 23000 m |
| Rate of fire | 18.003 s |
| Turret Tracking | 6.688 |


## Heat

| Attribute | Value |
| --- | --- |
| Heat Damage | 2.4 HP |


## Materials

| Reprocessing yield | Quantity |
| --- | --- |
| [Tritanium](/types/34-tritanium) | 4,110 |
| [Pyerite](/types/35-pyerite) | 1,341 |
| [Mexallon](/types/36-mexallon) | 1,619 |
| [Isogen](/types/37-isogen) | 1 |
| [Nocxium](/types/38-nocxium) | 8 |


## Variations

- [720mm 'Jolt' Artillery I](/types/21555-720mm-jolt-artillery-i) (Storyline)
- [720mm 'Scout' Artillery I](/types/9451-720mm-scout-artillery-i) (Tech I)
- [720mm Carbine Howitzer I](/types/9453-720mm-carbine-howitzer-i) (Tech I)
- [720mm Gallium Cannon](/types/9455-720mm-gallium-cannon) (Tech I)
- [720mm Howitzer Artillery I](/types/493-720mm-howitzer-artillery-i) (Tech I)
- [720mm Howitzer Artillery II](/types/2969-720mm-howitzer-artillery-ii) (Tech II)
- [Domination 720mm Howitzer Artillery](/types/13784-domination-720mm-howitzer-artillery) (Faction)
- [Republic Fleet 720mm Howitzer Artillery](/types/16056-republic-fleet-720mm-howitzer-artillery) (Faction)

Links: [Markdown](/types/9457-720mm-prototype-siege-cannon.md) · [JSON](/types/9457-720mm-prototype-siege-cannon.json)