Iron cannonball
Ammo suited for a boat's cannon.
17gp
15gp
2gp
+2gp
—
—
Price history
1 points · hover for detail
Volume · units traded
- 30D low
- 15
- 30D high
- 17
- Volatility
- 12.5%
Flip calculator
Includes the 2% Grand Exchange tax
+2gp
+2 per item · +13.33% ROI
- Capital required
- 15 gp
- Gross revenue
- 17 gp
- GE tax (2%, 0/item)
- − 0 gp
- Break-even sell
- 15 gp
Item data
- High alchemy
- 2 gp88.2% below market
- Low alchemy
- 1 gp
- Shop value
- 5 gp
- Weight
- 0 kg
- Skill / type
- Smithing
- Stack / note
- Not stackable · not noteable
- Released
- Nov 19, 2025
About Iron cannonball
The Iron cannonball is a members-only item in Old School RuneScape.
"Ammo suited for a boat's cannon"
Over the last 30 days it traded between 13 and 16 gp on the Grand Exchange, averaging 14 gp. About 828,032 units changed hands per day. The price is up 6.7% across that window. The Grand Exchange buy limit is 11,000 every 4 hours.
Casting High Level Alchemy returns 2 gp, which is 85.7% below the 30-day average price, so alching a bought one loses money.
How to get Iron cannonball
9 monsters drop Iron cannonball, most commonly Cannonball stall (64/256), Dolphin (8/50) and Pirate (Thieving) (10/200). Only Port Roberts Cannonball Stall sells it.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Cannonball stall | 64/256 | 1 |
| Dolphin | 8/50 | 30–42 |
| Pirate (Thieving) | 10/200 | 1 |
| Tarnished chest | 3/60 | 5–10 |
| Hermit crab | 6/128 | 5–9 |
| Fishy salvage | 20/467 | 1–5 |
| Rusty chest | 2/60 | 5–10 |
| Small salvage | 50/1,721 | 2–7 |
| Tiny port reward bag | Unknown | 41–59 |
Sold in shops
| Shop | Price | Stock |
|---|---|---|
| Port Roberts Cannonball Stall | 10 gp | 10000 |
Iron cannonball price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 14 | 13 | 16 | 9,965,690 |
| September 2026 | 14 | 12 | 15 | 24,502,469 |
| August 2026 | 14 | 12 | 18 | 29,465,459 |
| July 2026 | 14 | 9 | 23 | 38,421,736 |
| June 202621d | 10 | 4 | 16 | 15,657,640 |
| May 20262d | 16 | 15 | 16 | 741,595 |
| April 20261d | 15 | 15 | 15 | 184,848 |
| March 2026 | 15 | 12 | 17 | 7,356,533 |
| February 2026 | 16 | 13 | 23 | 1,050,351 |
| January 2026 | 12 | 11 | 15 | 17,856 |
Across 10 months of recorded prices Iron cannonball ranged from 4 gp in June 2026 to 23 gp in February 2026, measured over 218 trading days.
The 30-day average of 14 gp sits around the middle of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
