Casting Spin Flax for bow strings

Processing Moderate Members Buy-limit capped

497KGP/hr (buy-limit capped from 727K)

500KCapital to start (~1 hour of inputs)

950/hrActions per hour (assumed)

Withdraw flax, cast Spin Flax until the inventory is bow strings, bank, repeat. Two nature runes per cast is the main cost; bow string demand from fletchers keeps the price steady.

Requirements

Skills: 76 Magic, 10 Crafting
Quests: Lunar Diplomacy
Note: Lunar spellbook. Spins 5 flax per cast; ~6 casts per inventory.

How to do it

Method rates and requirements here are independently authored. For the step-by-step guide, see the OSRS Wiki page (CC BY-NC-SA 3.0).

The math (per hour)

Item	Qty/hr	Unit	Total	1h volume
Bow string	4,750	240	+1,140,000	150,461 limit 13,000/4h
Flax	4,750	3	−14,250	339,776 limit 13,000/4h
Astral rune	950	114	−108,300	902,831 limit 25,000/4h
Nature rune	1,900	138	−262,200	1,270,208 limit 18,000/4h
Air rune	4,750	6	−28,500	10,404,152 limit 50,000/4h
Revenue			1,140,000
Costs			−413,250
Profit / hour			727K

Sell prices are after 2% GE tax (capped at 5M, items under 50 gp exempt). Inputs use the instant-buy price, outputs the instant-sell price — the conservative assumption. Buy-limit cap: 68% (binding: Flax).

Prices updated 5s ago. Figures are estimates: buy at instant-buy price, sell at instant-sell price after 2% GE tax.

Something wrong?

Rates, requirements or items off? Email us and we'll fix the data. Current figure: 950 actions/hr.