Nosler AccuBond 22 Caliber 70gr Spitzer Point Reloading Bullets - 50 Rounds. AccuBond represents the most advanced bonded core bullet technology to date. Through a proprietary bonding process that eliminates voids in the bullet core, AccuBond marries Nosler's traditional copper-alloy jacket with its special lead-alloy core. The result is a bullet that flies true, penetrates deep, won't cause extensive barrel fouling, and will retain 60-70% of its weight. The polymer tip helps protect against deformation while initiating expansion upon impact.