Winchester Rifle Brass Winchester Unprimed 50/Pack. When compared to the Case Corp product line the Winchester Brass Rifle Unprimed Cartridge Cases 25-35 win may have a slightly wider case mouth a little imperfection near the base but overall the quality is very good. We sell Winchester Unprimed Brass Rifle Cartridge Cases 50/box without priming or re-primed so they are ready to use right out of the box. Specifications for Winchester .25-35 Winchester Unprimed Rifle Brass: Manufacturer: Winchester Caliber: .25-35 Winchester Primed: No Brass Quantity: 50 Piece Cartridge Case Material: Brass Package Contents: Winchester Unprimed Rifle Shellcases 25-35 Win Winchester WSC2535WU: Rifle Brass .25-35 Winchester Unprimed 50/Pack