You can get the best crossbow in The Witcher 3 from the hands of the dealer Ofieri in Upper Mill. The best crossbow you can equip is the ursina crossbow or the feline crossbow due to its 15% extra experience with monsters. This can be very useful when trying to level up faster. Unfortunately, Warlock Crossbows don't have legendary versions in New Game+ and can't be upgraded to a higher rarity to unlock the Warlock set bonus.
I've thought about this and I'm not sure. Ursina Crossbow gives you +5% Critical Hit Chance, but it doesn't appear on the statistics screen. Whether equipped or not, none of the critical hit chance values change. Ignoring that fact, it seems that Ursine and Feline have the best statistics on the role of the game right now.
I have looted some higher-level ones that are only behind for about -1 damage, but they don't have the extra stats that the sorcerer school have. Crossbow (Master) Information Master Level Crossbow Type Loot Source Varies Attributes Effect (s) +103-190% Attack Power. Keep reading to learn more about which crossbow has the best stats you can equip in the game. Crossbow (Common) Information Level Common Type Crossbow Source The Beast from the White Garden Weight 0.77 Value Base 22 - 28 Attributes Effect (s) +101% Attack Power.
The use of crossbows underwater will ensure a one-shot death against the drowned, regardless of the damage of the crossbow. Information about the crossbow (relic) Relic type Crossbow Source of loot Weight 1.25 Attributes Effect (s) +200% Attack Power +1-2% Adrenaline Point Gain +1-10% Extra Monster Experience +1-10% Extra Human and Non-Human Experience.