Medieval Crossbows vs. Breastplate and Lamellar Armor

Basic introduction to medieval crossbows: 350 lb munition grade crossbow tested on helmets: 45 lb bow and 350 lb crossbow against ballistic gel and gambeson (padded coat): Measuring the velocity and kinetic energy of bows and crossbows (historical and modern): Improvised draw weight measurement (aka the most Redneck way to measure