New crossbows (The Witcher 3: Wild Hunt)

In the baron's castle, the quartermaster has a Nilfgaardian crossbow, and maybe some more. Names to know.

Drawings of two crossbows (School of the Cat and the Bear) can be obtained by quests for them, though they are for a high level (The Cat has 29 for example)

Stimfall
Crossbow can be purchased from the vendor next to the forge in Vronitsa Castle (No Man's Land)
Skellig Crossbow can be purchased from Caer Trolde Castle (Skellige)
Elven Crossbow can be purchased from the fashion shop owner (Novigrad)

Fallen Cheshire
yes,
but they are the best in the game! and the cat is even higher in damage

Fallen Cheshire
I already have blueprints for all witcher equipment, including crossbows.