Barnes .22 Caliber Rifle Bullets 65 Grain LRX Boat Tail 50 Bullets. 224" 22 CAL 65gr LRX: Designed and optimized for the 22 Creedmoor. This is the heaviest and sleekest copper bullet designed around the SAAMI standard 1:8 twist rate. 22 ARC is another great application for this bullet as well. Specifications for Barnes .22 Caliber Rifle Bullets 65 Grain LRX Boat Tail: Manufacturer: Barnes Gun Type: Rifle Bullet Type: LRX Boat Tail Bullet Weight: 65 grain Projectile Caliber: .22 Caliber Diameter: 0.224 in G1 Ballistic Coefficient: 0.424 G7 Ballistic Coefficient: 0.203 Core Material: Copper Bullet Quantity: 50 Bullet Case Material: Copper Package Contents: Barnes .22 Caliber Rifle Bullets 65 grain LRX Boat Tail Barnes 32471: .22 Caliber Rifle Bullets 65 Grain LRX Boat Tail 50 Bullets