Rune cannonball
P2PBuy limit: 11,000·last trade 1m ago
Confidence
Confidence0%
One score blending fill chance, market volume and profit quality.
Fill chance88%
Volume93%
Profit0%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at685
Buy fills83%
Sell at686
Sell fills82%
Net / item-12 (-1.8%)
Est. profit / 4h0
11,000 units · 88% fill confidence
Insta-sell
685
cheapest buy (full spread)
Insta-buy
686
dearest sell (full spread)
Gross margin
1
GE tax
13
2% per item, max 5M
Net margin
-12
-1.8% ROI
Volatility
1.1%
price noise (1h history)
How to flip the Rune cannonball
The Rune 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 685 gp and sells at 686 gp — a net margin of -12 gp (-1.8% ROI) after the 2% Grand Exchange tax of 13 gp. High alchemy yields 840 gp.
To flip it, place a buy offer near 685 gp and a sell offer near 686 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 liquidity73%
Recent activity99%
Size vs market70%
Why this profit score
Spread persistence0%
No price spike0%
Margin plausibility0%