Description

Box with 50 factory new Atlas Development Group (ADG) unprimed 300 Winchester Magnum brass cases (standard anneal line visible, actual case not pictured)

ADG recommends reducing any existing charge weights by 10% and re-developing your specific load when replacing any component in a load recipe with a new component (brass, projectile, primer, or powder type). Failure to reduce charge weights established using other manufacturers brass may result in higher pressures and velocities while using ADG brass and may result in unsafe pressure levels.