Lapua 30 Caliber Rifle Bullets 185 Grain FMJBT 100 Bullets. Manufactured to the strictest tolerances for concentricity uniformity of shape and weight the .30 caliber D46 projectile has shot its way to the record books since the 1930s all the way to the 21st century. Specifications for Lapua 30 Caliber Rifle Bullets 185 Grain FMJBT: Manufacturer: Lapua Caliber: .30 Carbine Bullet Weight: 185 grain Package Contents: Lapua 30 Caliber Rifle Bullets 185 Grain FMJBT Lapua 4PL7019: 30 Caliber Rifle Bullets 185 Grain FMJBT 100 Bullets