Steel cannonball
P2PBuy limit: 11,000·last trade 1m ago
Confidence
Confidence78%
One score blending fill chance, market volume and profit quality.
Fill chance91%
Volume100%
Profit60%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at251
Buy fills42%
Sell at275
Sell fills44%
Net / item19 (7.6%)
Est. profit / 4h209.0K
11,000 units · 91% fill confidence
Insta-sell
250
cheapest buy (full spread)
Insta-buy
276
dearest sell (full spread)
Gross margin
26
GE tax
5
2% per item, max 5M
Net margin
21
8.4% ROI
Volatility
3.7%
price noise (1h history)
How to flip the Steel cannonball
The Steel cannonball is a members-only Old School RuneScape item — “Ammo suited for a boat's cannon or for a dwarf multicannon.”. Its Grand Exchange buy limit is 11,000 per 4 hours. Right now it buys at 250 gp and sells at 276 gp — a net margin of 21 gp (8.4% ROI) after the 2% Grand Exchange tax of 5 gp. High alchemy yields 3 gp.
To flip it, place a buy offer near 250 gp and a sell offer near 276 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 liquidity45%
Recent activity99%
Size vs market99%
Why this profit score
Spread persistence46%
No price spike79%
Margin plausibility100%