OSRS Drop Calculator › Adamant cannonball

Best way to farm Adamant cannonball

All 6 monsters that drop Adamant cannonball, ranked by realistic quantity per hour — not just drop rate. Change the seconds-per-kill for any monster to match your own speed. 2 other sources aren’t ranked; see why below.

Drop data: Adamant cannonball on the OSRS Wiki

Currently fastest method
Narwhal
277 / hr
Monster Drops (rarity · quantity) Avg/kill Sec/kill Kills/hr Qty/hr
Narwhal
Combat lvl 111
4/60 · 36–54
 3 39 92 277
Shellbane gryphon
Combat lvl 235 · Slayer 51
8/128 · 35–50 (2 rolls)
 5.31 74 49 258
Spined kraken
Combat lvl 128
4/109 · 24–36
 1.1 38 95 104
Lava Strykewyrm
Combat lvl 116 · Slayer 62
3/128 · 12–22
 0.398 31 116 46
Pygmy kraken
Combat lvl 93
2/108 · 18–24
 0.389 33 109 42
Gryphon
Combat lvl 95 · Slayer 51
2/128 · 5–9
 0.109 25 144 16

Other sources (not ranked)

These also drop it but aren’t included in the ranking above. They’re all superior slayer monsters: they only appear randomly (~1 in 200 kills) while you’re on a slayer task.

Monster Drops (rarity · quantity) Avg/kill
Magma strykewyrm
Combat lvl 249 · Slayer 62
3/128 · 12–22 (3 rolls)
 1.2
Dire gryphon
Combat lvl 209 · Slayer 51
2/128 · 5–9 (3 rolls)
 0.328
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.

Something wrong on this page?

Drop rates come from the OSRS Wiki and kill times are estimates, so mistakes happen. Tell us what's off and it'll be looked at.