Acroballistics | Scorpion Torsion Ballista and Crossbow @Acroballistics | Uploaded 1 year ago | Updated 2 hours ago
Roman artillery torsion catapult speed, range and crossbow upgraded. Enjoy!
previous video with the crossbow: youtu.be/nHOoLchEMys
one of the best torsion engine makers out there: http://wattsunique.com/blog/gallwey-carroballista