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Iron incendiary cannonball is 550 gp on the OSRS GE (insta-sell 500 gp). members.
Buy limit: none on this item.
High alch: 4 gp.
In game it is examined as “Ammo suited for a boat's cannon.” Iron incendiary cannonball is members-only, so a membership is needed to trade or use it. The base game value is 8 gp, which is what shops price from rather than what players pay.
Iron incendiary cannonball has no Grand Exchange buy limit, so the only cap on a position is the gold behind it.
Selling at 550 gp costs 11 gp in tax — 2%, rounded down, taken from the seller. A flip has to clear that before it makes anything, and it is the number most margin calculators leave out.
High alchemy turns one Iron incendiary cannonball into 4 gp. That is less than the 142 gp nature rune the cast costs, so alching Iron incendiary cannonball always loses money.
How much is Iron incendiary cannonball in OSRS? Iron incendiary cannonball is 550 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 500 gp. The chart above is live.
What is the buy limit for Iron incendiary cannonball? Iron incendiary cannonball has no buy limit.
Can you high alch Iron incendiary cannonball for profit? No — the alch value is 4 gp and the nature rune alone costs 142 gp.
Do you need members for Iron incendiary cannonball? Yes, Iron incendiary cannonball is members-only.
Related: Adamant incendiary cannonball·Rune incendiary cannonball·Mithril incendiary cannonball·Steel incendiary cannonball
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