Lapua 22 Caliber Rifle Bullets 55 Grain FMJ 1000 Bullets. The reliability of this popular short range bullet means that every shot will hit the target. Specifications for Lapua Rifle Bullets 22 cal 55 gr FMJ: Manufacturer: Lapua Bullet Type: Full Metal Jacket (FMJ) Caliber: .22 BR Remington Bullet Weight: 55 grain Projectile Caliber: .22 Caliber Package Contents: Lapua Rifle Bullets 22 cal 55 gr FMJ Lapua 4HL5017: 22 Caliber Rifle Bullets 55 Grain FMJ 1000 Bullets