Adamant cannonball
Ammo suited for a boat's cannon.
224gp
216gp
8gp
+4gp
—
—
Price history
1 points · hover for detail
Volume · units traded
- 30D low
- 216
- 30D high
- 224
- Volatility
- 3.6%
Flip calculator
Includes the 2% Grand Exchange tax
+4gp
+4 per item · +1.85% ROI
- Capital required
- 216 gp
- Gross revenue
- 224 gp
- GE tax (2%, 4/item)
- − 4 gp
- Break-even sell
- 220 gp
Item data
- High alchemy
- 108 gp51.8% below market
- Low alchemy
- 72 gp
- Shop value
- 180 gp
- Weight
- 0 kg
- Skill / type
- Smithing
- Stack / note
- Not stackable · not noteable
- Released
- Nov 19, 2025
About Adamant cannonball
The Adamant 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 220 and 247 gp on the Grand Exchange, averaging 229 gp. About 821,355 units changed hands per day. The price is down 4.3% across that window. The Grand Exchange buy limit is 11,000 every 4 hours. Selling one at the average price costs 4 gp in Grand Exchange tax.
Casting High Level Alchemy returns 108 gp, which is 52.8% below the 30-day average price, so alching a bought one loses money.
How to get Adamant cannonball
16 monsters drop Adamant cannonball, most commonly Cannonball stall (24/256), Narwhal (4/60) and Shellbane gryphon (8/128). Only Port Roberts Cannonball Stall sells it.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Cannonball stall | 24/256 | 1 |
| Narwhal | 4/60 | 36–54 |
| Shellbane gryphon | 8/128 | 35–50 |
| Martial salvage | 100/2,440 | 2–5 |
| Spined kraken | 4/109 | 24–36 |
| Plundered salvage | 25/1,036 | 2–5 |
| Lava Strykewyrm | 3/128 | 12–22 |
| Magma strykewyrm | 3/128 | 12–22 |
| Pygmy kraken | 2/108 | 18–24 |
| Reinforced chest | 1/60 | 5–10 |
| Dire gryphon | 2/128 | 5–9 |
| Gryphon | 2/128 | 5–9 |
| Large salvage | 10/2,218 | 1–7 |
| Huge port reward bag | Unknown | 59 |
| Large port reward bag | Unknown | 59 |
| Medium port reward bag | Unknown | 40–52 |
Sold in shops
| Shop | Price | Stock |
|---|---|---|
| Port Roberts Cannonball Stall | 450 gp | 0 |
Adamant cannonball price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 226 | 220 | 229 | 11,103,018 |
| September 2026 | 233 | 220 | 251 | 22,925,759 |
| August 2026 | 222 | 200 | 253 | 33,202,185 |
| July 2026 | 285 | 226 | 365 | 32,361,256 |
| June 202621d | 438 | 273 | 623 | 14,763,934 |
| May 20262d | 289 | 278 | 299 | 1,132,311 |
| April 20261d | 288 | 288 | 288 | 312,156 |
| March 2026 | 445 | 274 | 572 | 8,205,667 |
| February 2026 | 504 | 474 | 557 | 839,304 |
| January 2026 | 509 | 425 | 560 | 17,856 |
Across 10 months of recorded prices Adamant cannonball ranged from 200 gp in August 2026 to 623 gp in June 2026, measured over 218 trading days.
The 30-day average of 229 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
