PocketGE
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Steel cannonball is 273 gp on the OSRS GE (insta-sell 262 gp). ~3.97M/day · members.
Buy limit: 11,000 every 4 hours.
High alch: 3 gp.
In game it is examined as “Ammo suited for a boat's cannon or for a dwarf multicannon.” Steel cannonball is members-only, so a membership is needed to trade or use it. The base game value is 5 gp, which is what shops price from rather than what players pay.
The Grand Exchange lets one account buy 11,000 every 4 hours. That is a generous limit, so the market rather than the limit is usually what caps a position here. Filling it once costs about 3,003,000 gp at the 273 gp price recorded on 11 October 2026. The limit is per account and resets on a rolling 4-hour timer.
Selling at 273 gp costs 5 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 Steel cannonball into 3 gp. That is less than the 142 gp nature rune the cast costs, so alching Steel cannonball always loses money.
Steel cannonball sees about 3.97M trades a day, which makes it one of the busiest items on the Grand Exchange — orders at a fair price fill in minutes. That is roughly 361 times the 11,000 buy limit.
How much is Steel cannonball in OSRS? Steel cannonball is 273 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 262 gp. The chart above is live.
What is the buy limit for Steel cannonball? 11,000 every 4 hours.
Can you high alch Steel cannonball for profit? No — the alch value is 3 gp and the nature rune alone costs 142 gp.
Do you need members for Steel cannonball? Yes, Steel cannonball is members-only.
Related: Iron cannonball·Bronze cannonball·Adamant cannonball·Rune cannonball
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