The .38-40 Winchester (10.17x33mmR) is actually a .40 caliber (10 mm) intermediate cartridge shooting .401 in (10.2 mm) caliber bullets. The cartridge was introduced by Winchester in 1874 and is derived from their .44-40 Winchester.

The .38-55 Winchester / 9.6x53mmR cartridge (actually .3775 caliber), also known as the .38-55 WCF and the .38-55 Ballard, [4] is a centerfire rifle cartridge. It was based on an earlier cartridge called the .38-50 Ballard Everlasting that was introduced in 1876 by the Ballard Rifle & …

2022年9月1日 · Developed from the larger .44-40 Winchester Center Fire, the .38-40 WCF was introduced in the late 19th century as a lighter recoiling alternative for lever-action rifles and revolvers.

Modern Winchester factory load rifle ballistics call for a muzzle velocity (MV) of 1160 fps and muzzle energy (ME) of 538 ft. lbs. with a JSP bullet. These .38-40 specs are derived in a 24" test barrel! This load is also safe for use in revolvers designed for smokeless powder.

The .38-40 is the cartridge for those who wish to stay with authentic frontier loads but don’t want the recoil of a 255-gr. .45 Colt loaded to original levels (or even the lighter recoiling 200-gr. .44-40). The .38-40, usually loaded with 180-gr. bullets, is very pleasant to shoot even with loads of 1,000 fps or more.

It was devised to compete with the .38-55 Winchester and ultimately found an enduring home in the Marlin 336 lever action. The .25-35, .30-30 and .32 Spec. are all based on necked-down versions of the .38-55 case. The official SAAMI maximum average pressure (MAP) is 38,000 CUP for the .30-30 and .32 Special, and 37,000 CUP for the .25-35.

Winchester introduced the 38-40 Winchester Centerfire in 1874 as a companion to the 44-40 cartridge. Chambered in the Winchester Model 1873, it was one of the most popular cartridges of the West. The 38-40 is considered a medium power cartridge generating less than 600 foot-pounds of energy.

Why Winchester named it .38 is a mystery. Then the first question one should ask about this cartridge is why it was introduced in the first place. Its original black powder factory loads used 180 grain .400 inch bullets compared to the .44 WCF/.44-40’s 200 grain .425 inch ones.

2024年4月12日 · The .38-55 Winchester carved its niche in this competitive arena, setting records and earning accolades for its remarkable accuracy. Its success in matches contributed to its growing reputation, not just among sport shooters but also among hunters who sought a reliable cartridge for the field.

2024年5月4日 · 38 WCF ammo, also known as 38-40 Winchester, is a type of centerfire rifle and handgun cartridge developed by Winchester in 1874. It was originally designed for the Winchester Model 1873 rifle and later used in revolvers and single-shot rifles.