HSM Ammunition Starline Pistol Brass Unprimed Cases Win Caliber Handgun Brass 100 Per Bag. 44-40 Winchester .44 WCF and .44 Winchester this caliber gained popularity because of its availability in both rifles and handguns. The advent of Cowboy Action Shooting has helped to revive this obsolete vintage cartridge. Our .44-40 brass has a wall thickness of .0065" but is still stiffer and less fragile than other brands which makes it much easier to reload. Specifications for Starline Brass Unprimed Cases 44-40 Win Handgun Brass: Manufacturer: HSM Ammunition Gun Type: Pistol Caliber: .44-40 Winchester Primed: No Quantity: 100 Per Bag Fabric/Material: Brass Package Contents: Starline Brass Unprimed Cases 44-40 Win Handgun Brass