Steel incendiary cannonball trades around 745 gp now, -68.5% this week, 7-day range 358–2,141.
Flippers place a buy offer near the low and sell near the high.
“Ammo suited for a boat's cannon.”
Steel incendiary cannonball last traded at 1,090 gp (insta-buy) and 400 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 669 gp per item. 1,546 were traded in the last 24 hours. It is a members' item.
Hourly mid price, the average of the buy and sell prices. Volume counts both sides.
Daily GE guide prices from 22 May 2026 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.
Tax: Selling one at 1,090 gp costs 21 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →
Steel incendiary cannonball last sold for 400 gp (instant sell) and was last bought for 1,090 gp (instant buy) on the Grand Exchange.
The OSRS Wiki has no recorded buy limit for Steel incendiary cannonball yet, so Offerbook sizes flips on it by trade volume alone.
High alchemy turns Steel incendiary cannonball into 6 gp. Buying one at 1,090 gp and casting with a nature rune at 138 gp costs 1,228 gp. That is a loss of 1,222 gp per cast at the latest prices, so it is not worth alching for profit right now.
No. Selling one at 1,090 gp costs 21 gp in tax (2% of the sale price, rounded down, capped at 5m gp).
The highest daily guide price on record for Steel incendiary cannonball is 392 gp, on 9 Oct 2026. The lowest is 300 gp, on 22 May 2026.