Sierra Bullets Varminter Rifle Bullets .30 Caliber Hollow Point HP 135 grain 100 Bullets/Box. This light weight thin-jacketed hollow point bullet is devastatingly effective but requires velocities to remain under 3200 FPS. For 300 Blackout and reduced recoil loads this new offering adds another excellent hunting bullet option. The #2124 was introduced in October 2015. Specifications for Sierra Bullets Varminter 135 gr. .30 Cal HP Rifle Bullets: Manufacturer: Sierra Bullets Gun Type: Rifle Bullet Type: Hollow Point (HP) Bullet Weight: 135 grain Projectile Caliber: .30 Caliber Diameter: 0.308 in Sectional Density: 0.203 Country of Origin: USA Package Contents: Sierra Bullets Varminter 135 gr. .30 Cal HP Rifle Bullets Sierra Bullets 2124: Varminter Rifle Bullets .30 Caliber Hollow Point HP 135 grain 100 Bullets/Box