OSRS Drop Calculator › Bow string

Best way to farm Bow string

All 3 monsters that drop Bow string, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 1 other source isn’t ranked; see why below.

Drop data: Bow string on the OSRS Wiki

Currently fastest method
Spiritual ranger
148 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Spiritual ranger
Combat lvl 115–158 · Slayer 63
18/128 · 7
 0.984 24 150 148
Zamorak ranger
Combat lvl 81–82
2/50 · 10 noted
 0.4 14 257 103
Mutated Bloodveld
Combat lvl 123 · Slayer 50
4/128 · 1
 0.031 32 112 3.5

Other sources (not ranked)

Insatiable mutated Bloodveld is a superior slayer monster: it only appears randomly (~1 in 200 kills) while you’re on a slayer task. So it’s not included in the ranking above.

Monster Drops (rarity · quantity) Avg/kill
Insatiable mutated Bloodveld
Combat lvl 278 · Slayer 50
4/128 · 1 (3 rolls)
 0.094
How this is calculated: items/hr = (3600 ÷ seconds per kill) × average items per kill. Each monster's drop lines are listed as the wiki shows them (rarity · quantity); the average adds them all up, each as rarity × average quantity × rolls — so a guaranteed drop plus a rarer bonus drop both count. Drop rates and quantities come from the OSRS Wiki's community-verified drop tables. Seconds-per-kill is an editable estimate based on each monster's hitpoints and defence — your real speed depends on your stats and gear, so adjust it and your edits are remembered on this device. Rates marked ~ are approximate on the wiki.