44-40 Win – 200 Gr RNFP – HSM Cowboy Action (44401N) – 500 Rounds

The 44-40 Winchester was one of the first cartridges to work in both a lever rifle and a revolver, and it is still a favorite for cowboy action shooters who want historical accuracy. This listing is HSM Cowboy Action 44-40 Win 200 grain round nose flat point ammo, MPN 44401N, sold as 500 rounds. The N suffix marks it as HSM’s new production ammunition.

HSM lists this load at 853 fps with 323 ft-lbs of muzzle energy. The light charge keeps recoil gentle for fast strings on steel and stays within the velocity limits cowboy action rules set for revolver ammunition. The 200 grain round nose flat point bullet is safe in tubular magazines, because the flat point does not rest on the primer of the round ahead with a sharp tip. This is competition and target ammunition, not a hunting load.

This ammunition fits firearms chambered in 44-40 Winchester, also called 44 WCF, including Uberti 1866 and 1873 lever rifles, Winchester 1873 and 1892 reproductions, Cimarron and Uberti Cattleman revolvers, Colt Single Action Army in 44-40, and Rossi R92 rifles chambered for it. A common question is whether 44-40 and 44 Magnum are interchangeable. They are not. The 44-40 is a bottlenecked case with a different bullet diameter. Another common question is whether this load is safe in original 19th century firearms. Antique guns made for black powder should be inspected by a qualified gunsmith before firing smokeless ammunition.

HSM 44401N is new production ammunition, not reloads. It uses boxer-primed brass cases, which many cowboy shooters reload, with non-corrosive priming. This listing ships as 10 boxes of 50 rounds for 500 rounds total from one lot. A full case covers several club matches, and having one lot keeps point of impact matched between your rifle and revolvers. Black powder era calibers can be hard to find on short notice, so a case on the shelf keeps you ready for the next shoot.