With the new Taunton Gun it is now possible in Hawke's Bay and New York to have 8 Sleep Darts(or just 6 on all other Maps with normal Loadout), as you can
Hitman 3 Weapons and Gear Guide – How to Unlock, Best Weapons, Gear
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Kalmer 2 - Tranquilizer | Hitman Wiki | Fandom
Kalmer 1 - Tranquilizer | Hitman Wiki | Fandom
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Hitman 2 except with 10k tranquilizer darts - YouTube
BB guns, BSA, Norica, Comet, Gamo etc ..
How to Unlock Best Weapons & Gears in Hitman 3 - Mastery Guide
Hitman 2 How to Unlock All Weapons and Equipment | Attack of the Fanboy
Now that we got an Emetic and Sedative dart pistol. How about one of these but with only 1 dart instead? : r/HiTMAN
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Hitman 3 (Video Game) - TV Tropes
How to Unlock Absolutely Everything in Hitman 3 (and the World of Assassination Trilogy) – Half-Glass Gaming