Iron cannonball
P2PBuy limit: 11,000·last trade 21m ago
Confidence
Confidence81%
One score blending fill chance, market volume and profit quality.
Fill chance80%
Volume92%
Profit77%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at13
Buy fills24%
Sell at15
Sell fills26%
Net / item2 (15.4%)
Est. profit / 4h22.0K
11,000 units · 80% fill confidence
Insta-sell
13
cheapest buy (full spread)
Insta-buy
15
dearest sell (full spread)
Gross margin
2
GE tax
0
2% per item, max 5M
Net margin
2
15.4% ROI
Volatility
18.4%
price noise (1h history)
How to flip the Iron cannonball
The Iron cannonball is a members-only Old School RuneScape item — “Ammo suited for a boat's cannon.”. Its Grand Exchange buy limit is 11,000 per 4 hours. Right now it buys at 13 gp and sells at 15 gp — a net margin of 2 gp (15.4% ROI) after the 2% Grand Exchange tax. High alchemy yields 2 gp.
To flip it, place a buy offer near 13 gp and a sell offer near 15 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.
Price history
● insta-buy● insta-sell● moving avg
Why this fill score
Trading volume100%
Two-sided liquidity51%
Recent activity84%
Size vs market63%
Why this profit score
Spread persistence100%
No price spike100%
Margin plausibility100%