Hawkesbury River Bullet Company (HRBC) .427 (44-40 Cal) 180 Grain Flat Point (FP) Target Hawkes (400pk)Hawkesbury River Bullet Company (HRBC) is one of the oldest and most respected hard cast projectile manufacturer in Australia. Bullet Terminology: BNWC: Button Nose Wad Cutter CON: Conical FP: Flat Point RN: Round Nose RNFP: Round Nose Flat Point RNGC: Round Nose Gas Check RNWC: Round Nose Wad Cutter SPGC: Soft Point Gas Check SWC: Semi Wad Cutter