The Peterson Cartridge .280 Ackley Improved Rifle Brass (brand part no. 40011-P) is a bulk 250-count box of unprimed rifle cases built specifically for the .280 AI, a favorite wildcat among hunters and long-range shooters for its efficient case capacity and flat-shooting performance. Peterson brass is manufactured to tight, consistent tolerances, so handloaders spend less time sorting and more time at the reloading bench producing repeatable ammunition. This bulk box suits reloaders who shoot enough volume to justify buying brass in quantity.

Key Specifications

• Formed specifically for the .280 Ackley Improved wildcat, so no fire-forming from standard .280 Rem brass is required.
• Packaged as a 250-count bulk box, suited to handloaders running high volumes of ammunition through a hunting or long-range rifle.
• Built as dedicated rifle brass with consistent case dimensions to keep neck tension uniform load to load.

Frequently Asked Questions

Is this brass already formed for .280 AI, or do I need to fire-form it? It’s manufactured directly to .280 Ackley Improved dimensions, no fire-forming step required.

How many cases come in this box? It’s a 250-count bulk box.

Buy the Peterson Cartridge .280 Ackley Improved Rifle Brass

Browse more reloading supplies or order this one below. For handloaders running a .280 AI, starting with brass that’s already formed to spec saves a step and keeps your loads consistent. Order it through our Lubbock, Texas gun shop and our team can let you know as soon as it’s ready to ship.