These are 42 grains and have an advertised muzzle velocity of 1065 feet per second. It was my pleasure to assist you.

Drew, 42 grains Sir. ((Features and Specifications)): - Manufacturer Number: W22SUB42U - Caliber: .22 Long Rifle - Subsonic Round - Bullet Type: Lead Hollow Point Projectile (HP) - Bullet Weight: 42 Grains - Rounds: 500 Rounds per Brick - Muzzle Velocity: 1065 FPS - Muzzle Energy: 106 ft/lbs - Bullet Diameter: .223 - Casing: Brass - Features:
* Accurate high quality hollow point bullets - * Reliable Primers - * Precision formed cases - * Clean Burning Powders - Usage: Target, Range, Hunting.

Bullets are 42 gr.