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The Mounted Ballista costs 30 scrap to research.
What one batch takes.
Metal Fragments
Gears
Sheet Metal
The same recipe expanded until every line is something you gather, smelt or loot.
Metal Fragments
Scrap
Sheet Metal
Metal Fragments
Gears
Sheet Metal
Copy it, then hold Shift and click Paste (JSON) in the conveyor, in game.
[
{
"TargetCategory": null,
"MaxAmountInOutput": 250,
"BufferAmount": 0,
"MinAmountInInput": 0,
"IsBlueprint": false,
"TargetItemName": "metal.fragments"
},
{
"TargetCategory": null,
"MaxAmountInOutput": 1,
"BufferAmount": 0,
"MinAmountInInput": 0,
"IsBlueprint": false,
"TargetItemName": "gears"
},
{
"TargetCategory": null,
"MaxAmountInOutput": 2,
"BufferAmount": 0,
"MinAmountInInput": 0,
"IsBlueprint": false,
"TargetItemName": "sheetmetal"
}
]
Workbench Level 2, 25s, yields 1
Faster at a higher workbench: 12.5s at Workbench Level 3.
Researching the blueprint costs 30 scrap at a Research Table.
Crates, barrels and NPCs that drop the Mounted Ballista, most likely first
| From | Chance | Amount |
|---|---|---|
 Locked Crate | 1.3% | 1 to 2 |
 Elite Crate | 0.78% | 1 to 3 |
| Scientist PT Boat Dry Box | 0.73% | 1 to 3 |
 Military Crate | 0.42% | 1 |
 Underwater Lab Military Crate | 0.42% | 1 |
 Wagon Military Crate | 0.42% | 1 |
Missile Silo Scientist (underground) | 0.3% | 1 |
Scientist | 0.074% | 1 |
Heavy Scientist | 0.061% | 1 |
 Treasure Box, mission reward | 1.6% | 1 to 2 |
 Gingerbread Mine Present, Christmas event only | 0.42% | 1 |
Chance is for one container opened or one NPC killed. Amount is how many it holds when it holds any.
What the Mounted Ballista gives back in each recycler
| Recycler | Efficiency | You get |
|---|---|---|
| Red recycler | 75% | 75% Gears, 187 + 50% Metal Fragments, 1 + 50% Sheet Metal |
| Green recycler (powered) | 60% | 60% Gears, 150 Metal Fragments, 1 + 20% Sheet Metal |
| Green recycler | 50% | 50% Gears, 125 Metal Fragments, 1 Sheet Metal |
| Yellow recycler | 40% | 40% Gears, 100 Metal Fragments, 80% Sheet Metal |
The Mounted Ballista breaks down into Gears, Metal Fragments and Sheet Metal.
A recycler takes one at a time.
Figures are for one item in perfect condition. Each recycler’s name opens its full table at this item. “187 + 50%” means 187 every time and a 50% chance of one more, and a percentage alone is the chance of getting one.
In Rust, Mounted Ballista is a siege engine in the Weapons category (item ID #-759279626, console shortname ballista.mounted). In active play, it follows standard server rules for siege engine gear across procedural maps. Inventory storage holds a single unit per slot, and uncollected ground drops despawn after 40 minutes.
A ballista mounted on wheels, designed for mobility and capable of firing bolts at distant targets. Can be towed by horses.
Crafting Mounted Ballista in Rust takes 25 seconds at a Workbench Level 2 once the 30 scrap blueprint node is unlocked, with all ballistics, crafting, and durability values read from the Rust game files. Shredding a spare copy at a green recycler recovers base materials at fifty percent yield (vs forty percent at safe-zone yellow units). Equipped and stored units carry no durability wear bar.
The Mounted Ballista is one of the 6 siege engines; Rust classifies it under the Weapons inventory category.
When choosing between Mounted Ballista and related weapons in Rust, prioritize researching a looted or traded copy at a Research Table (30 scrap) whenever you want to skip the 600-scrap tech tree path and save 570 scrap, or unlock the tech tree branch when your group also needs the prerequisite blueprints.
| Item | Category | Stack Limit | Craft / Source | Tech Tree / Research | Green Recycler Yield |
|---|---|---|---|---|---|
| Mounted Ballista | Weapons | 1 per slot | Workbench Level 2 | 30 node / 600 path | Not recyclable |
| Ballista | Weapons | 1 per slot | Workbench Level 2 | 30 node / 570 path | Not recyclable |
| Battering Ram | Weapons | 1 per slot | Workbench Level 2 | 30 node / 540 path | Not recyclable |
| Catapult | Weapons | 1 per slot | Workbench Level 2 | 60 node / 630 path | Not recyclable |
Compare Mounted Ballista with closely related siege engine sheets in the Rust item catalog:
To compare Mounted Ballista against every item in its inventory category, browse All 85 items in Weapons, or plan prerequisite scrap paths on the The Workbench Level 2 tech tree, tile by tile.
The Mounted Ballista is crafted at a Workbench Level 2 from 250 Metal Fragments, 1 Gears and 2 Sheet Metal, once the blueprint is learned in Rust. Non-craftable components like Sheet Metal must be looted from monument crates or recycled gear before queuing the craft at your bench.
The Mounted Ballista drops from 9 container and NPC loot tables in Rust, led by Locked Crate (1.3% chance), Elite Crate (0.78% chance), and Scientist PT Boat Dry Box (0.73% chance). Each listed probability reflects a single container opened or NPC killed, and found copies can be repaired or researched at base.
The Mounted Ballista recycles in Rust at an unpowered green recycler into a 50% chance of Gears, 125 Metal Fragments and 1 Sheet Metal. Radtown green recyclers return higher base material efficiency than safe-zone yellow recyclers, which trade lower output for peacekeeper turret protection.
The Mounted Ballista takes 25 seconds to craft, down to 12.5 seconds at Workbench Level 3 in Rust. It belongs to the Weapons category under numeric ID -759279626 across 85 weapons, stacking to 1 unit per slot, with F1 console command inventory.giveid -759279626 1.
Blueprint progression for Mounted Ballista at Workbench Level 2 in Rust charges 30 scrap on the target node and 600 cumulative scrap along the prerequisite branch, while direct blueprint study at a Research Table charges 30 scrap.
Dropped on the ground in Rust, the Mounted Ballista despawns after 40 minutes by default. Picking it back up into a player inventory or storing it inside a base container immediately resets that ground despawn timer, which the server scales by item rarity tier.
The Mounted Ballista has 32-bit signed item ID -759279626 and shortname ballista.mounted in Rust. Server plugins, custom loot tables, Vending Machine listings, and automated Industrial Conveyor filter strings reference these two identifiers under the Weapons category (stack limit 1 unit per slot).
Server administrators in Rust spawn the Mounted Ballista in the F1 developer console by typing inventory.give ballista.mounted 1 or inventory.giveid -759279626 1 for a single unit. Both console spawn commands require administrator or moderator privileges on the server, while regular players can bind a quick-craft shortcut key instead.