Sierra Bullets Varminter .22 Caliber 40 Grain Full Metal Jacket Rifle Bullets. 22 caliber holds a unique place in the history of hunting and shooting sports and the development of recoil-operable cartridges has helped to lay the foundation for modern day varmint hunting. Using a traditional round nose bullet design in a venomous round was the only logical thing to do. While they are recognized around the world for record-setting accuracy Sierra believes their .22 cal bullets can do even more damage than that. The 22cal / 223 Remington and .22 Caliber Round Nose HPBT bullets are perhaps best known for being a varmint hunting bullet. While they will gobble up small game they seldom do much damage to larger game. With a similar sort of penetration that a .22 cal bullet with a jacket no thicker than a turkey round should provide they will actually expand much more quickly and create a larger wound channel than a conventional bullet of the same weight. Sierra believes this is the proper weight for the job and has designed the bullet to achieve its stated goals while functioning in a medium capacity cartridge. Specifications for Sierra Bullets Varminter .22 Caliber 40 Grain Full Metal Jacket Rifle Bullets: Manufacturer: Sierra Bullets Bullet Type: Lead Round Nose (LRN) Full Metal Jacket (FMJ) Bullet Weight: 40 grain Projectile Caliber: .22 Caliber Sectional Density: 0.115 Bullet Quantity: 100 Bullet Bullet Tip Material: Lead Country of Origin: USA Fabric/Material: Copper Package Contents: Sierra Bullets 1100 Varminter 22 Caliber .223 40 GR Round Nose Hornet 100 Box Sierra Bullets 1100 Varminter 22 Caliber .223 40 GR Round Nose Hornet 100 Box