[Home](/) / [Module](/categories/7-module) / [Hybrid Weapon](/groups/74-hybrid-weapon) / [Dual 250mm Prototype Gauss Gun](/types/7407-dual-250mm-prototype-gauss-gun)

# Dual 250mm Prototype Gauss Gun

## Tools

[Reprocess](/reprocess?type=7407) · [Appraise](/appraise) · Market: [Amarr orders](/market?type=7407&region=10000043); [Amarr regional history](/market?type=7407&region=10000043&tab=history); [Dodixie orders](/market?type=7407&region=10000032); [Dodixie regional history](/market?type=7407&region=10000032&tab=history); [Hek orders](/market?type=7407&region=10000042); [Hek regional history](/market?type=7407&region=10000042&tab=history); [Jita orders](/market?type=7407&region=10000002); [Jita regional history](/market?type=7407&region=10000002&tab=history); [Rens orders](/market?type=7407&region=10000030); [Rens regional history](/market?type=7407&region=10000030&tab=history)

Orders cover the selected hub region. Price history is regional, not station-specific.

## Overview

Market: [Ship Equipment](/market/9-ship-equipment) / [Turrets & Launchers](/market/10-turrets-and-launchers) / [Hybrid Turrets](/market/86-hybrid-turrets) / [Railguns](/market/555-railguns) / [Large](/market/566-large)

Hybrid Weapon · Module · Tech I

## Facts

| Fact | Value |
| --- | --- |
| Mass | 2,000 kg |
| Volume | 20 m³ |
| Capacity | 4 m³ |
| Radius | 1,000 m |
| Portion size | 1 |
| Base price | 98,972.00 ISK |
| Published | Yes |


## Prices

| Market | Value |
| --- | --- |
| Jita 4-4 sell minimum | 87,440.00 ISK |
| Jita 4-4 buy maximum | 52,000.00 ISK |
| The Forge sell minimum | 65,030.00 ISK |
| The Forge buy maximum | 52,010.00 ISK |
| Sell volume | 492 |
| Buy volume | 5915 |
| Snapshot loaded | 2026-09-09T13:44:26.824Z |
| HTTP last modified | 2026-09-09T12:49:55.000Z |
| Source | esi |


[Order book](/types/7407-dual-250mm-prototype-gauss-gun/prices) · [Price history](/types/7407-dual-250mm-prototype-gauss-gun/history)

## Fitting

| Attribute | Value |
| --- | --- |
| CPU usage | 43 tf |
| Powergrid Usage | 1100 MW |


## Structure

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


## Capacitor

| Attribute | Value |
| --- | --- |
| Activation Cost | 8.4 GJ |


## Miscellaneous

| Attribute | Value |
| --- | --- |
| Used with (Charge Group) | 85 groupID |
| Charges Per Cycle | 1 |
| Charge size | 3 1=small 2=medium 3=l |
| Meta Level | 4 Level |
| Overload rate of fire bonus | -15 % |
| Reload Time | 5 s |
| Required Thermodynamics Level | 1 Level |
| Tech Level | 1 Level |


## Required Skills

| Attribute | Value |
| --- | --- |
| Primary Skill required | 3307 typeID |
| Secondary Skill required | 3300 typeID |


## Turrets

| Attribute | Value |
| --- | --- |
| Damage Modifier | 1.98 x |
| Accuracy falloff | 10800 m |
| Optimal Range | 25920 m |
| Rate of fire | 4.973 s |
| Turret Tracking | 1.90179 |


## Heat

| Attribute | Value |
| --- | --- |
| Heat Damage | 0.7 HP |


## Materials

| Reprocessing yield | Quantity |
| --- | --- |
| [Tritanium](/types/34-tritanium) | 6,158 |
| [Pyerite](/types/35-pyerite) | 1,852 |
| [Mexallon](/types/36-mexallon) | 1,733 |
| [Megacyte](/types/40-megacyte) | 2 |


[Reprocessing calculator](/reprocess?type=7407)

## Variations

- [Brynn's Modified Dual 250mm Railgun](/types/14407-brynns-modified-dual-250mm-railgun) (Officer)
- [Caldari Navy Dual 250mm Railgun](/types/15814-caldari-navy-dual-250mm-railgun) (Faction)
- [Dread Guristas Dual 250mm Railgun](/types/13883-dread-guristas-dual-250mm-railgun) (Faction)
- [Dual 250mm 'Scout' Accelerator Cannon](/types/7409-dual-250mm-scout-accelerator-cannon) (Tech I)
- [Dual 250mm Carbide Railgun I](/types/7411-dual-250mm-carbide-railgun-i) (Tech I)
- [Dual 250mm Compressed Coil Gun I](/types/7413-dual-250mm-compressed-coil-gun-i) (Tech I)
- [Dual 250mm Railgun I](/types/572-dual-250mm-railgun-i) (Tech I)
- [Dual 250mm Railgun II](/types/3114-dual-250mm-railgun-ii) (Tech II)
- [Estamel's Modified Dual 250mm Railgun](/types/14415-estamels-modified-dual-250mm-railgun) (Officer)
- [Federation Navy Dual 250mm Railgun](/types/15834-federation-navy-dual-250mm-railgun) (Faction)
- [Kaikka's Modified Dual 250mm Railgun](/types/14411-kaikkas-modified-dual-250mm-railgun) (Officer)
- [Setele's Modified Dual 250mm Railgun](/types/14409-seteles-modified-dual-250mm-railgun) (Officer)
- [Shadow Serpentis Dual 250mm Railgun](/types/13882-shadow-serpentis-dual-250mm-railgun) (Faction)
- [Vepas' Modified Dual 250mm Railgun](/types/14413-vepas-modified-dual-250mm-railgun) (Officer)

## Formats

Links: [Markdown](/types/7407-dual-250mm-prototype-gauss-gun.md) · [JSON](/types/7407-dual-250mm-prototype-gauss-gun.json)