Ammo suited for a boat's cannon.
149 gp
Updated 1m ago
Mithril cannonball is currently trading at 149 gp on the Grand Exchange and is down 3.9% over the last 24 hours. Current instant-buy and instant-sell prices are 143 gp and 154 gp.
Category: bars · Members only · View on OSRS Wiki
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Mithril Cannonball is a members-only item on the OSRS Grand Exchange in the bars category.
In-game examine text: "Ammo suited for a boat's cannon."
It has a Grand Exchange buy limit of 11,000 every four hours, a high alchemy value of 36 gp, and item ID 31910.
Margin: 8 gp per flip
Volume: 557,517 trades / 24h
Buy limit: 11000 every 4 hours
Max profit/cycle: 88.0k gp
Verdict: High margin with healthy liquidity
Mithril Cannonball shows an active flip setup with a margin of +8 gp and 557,517 trades over the last 24 hours.
At the buy limit of 11,000 every four hours, max profit per cycle is about 88.0k gp — high margin with healthy liquidity.
| Time | Buy avg | Buy vol | Sell avg | Sell vol | Margin |
|---|---|---|---|---|---|
| 6m ago(8/5/2026) | 143 | 43 | 154 | 700 | 11 |
| 11m ago(8/5/2026) | 143 | 456 | 154 | 1000 | 11 |
| 16m ago(8/5/2026) | 143 | 530 | — | – | – |
| 21m ago(8/5/2026) | 148 |
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| 118 |
| — |
| – |
| – |
| 26m ago(8/5/2026) | 143 | 2 | 146 | 243 | 3 |
| 31m ago(8/5/2026) | 143 | 2878 | 148 | 18 | 5 |
| 36m ago(8/5/2026) | 143 | 198 | — | – | – |
| 41m ago(8/5/2026) | 143 | 165 | — | – | – |
| 46m ago(8/5/2026) | 143 | 44 | 152 | 1000 | 9 |
| 51m ago(8/5/2026) | 143 | 1312 | — | – | – |
| 56m ago(8/5/2026) | 142 | 125 | 143 | 4 | 1 |
| 1h ago(8/5/2026) | 142 | 79 | 142 | 76 | 0 |
Mithril brutal
229 gp