This fixed-charge bar is specifically designed for the classic 1-ounce target and field load. The shot cavity is pre-set for a precise 1 oz drop of standard lead shot, while the powder cavity is designed to accept interchangeable MEC powder bushings (sold separately) to meter the exact charge your recipe calls for. Ideal for the dedicated clay shooter or hunter, a fixed bar provides the ultimate in shot-to-shot consistency, ensuring every shell you produce has the same reliable performance. Equip your press with the tool trusted by reloaders for decades.