This is a NOSLER AccuBond known as the AccuBond chambered in 30 Caliber, model 55602.
Through an exclusive bonding process that eliminates voids in the bullet core" AccuBond(R) couples Nosler's proven copper-alloy jacket with its special lead-alloy core. The result is a bullet that flies true" penetrates deep and retains its weight" without causing extensive barrel fouling. The unique white polymer tip resists deforming and initiates expansion on impact. Nosler's Solid Base(R) at the rear of the bullet acts as a platform for large diameter mushrooms.
Proprietary bonding process
Tapered copper-alloy jacket