Winchester Load Data

The Winchester Repeating Arms Company was a prominent American manufacturer of repeating firearms and ammunition. The firm was established in 1866 by Oliver Winchester and was located in New Haven, Connecticut. The firm went into receivership in 1931 and was bought by the Western Cartridge Company, a forerunner of the Olin Corporation. The Winchester brand name is still owned by the Olin Corporation, which makes ammunition under that name. The Winchester name is also used under license for firearms produced by two subsidiaries of the Herstal Group – FN Herstal of Belgium and the Browning Arms Company of Ogden, Utah.

Our Winchester load data covers 5 reloading powders. The Winchester load data consists of overall 65000 loads.

Winchester 231

Winchester 231 is a ball powder, one of the most popular handgun propellants in history. It is ideally suited to 38 Special, 45 Auto, and 9mm standard loads. Consistency, clean burning, low flash, and a broad range of applications make this powder a choice for any handgun cartridge loader.

Winchester 296

Winchester 296 is a ball powder developed for large handgun loads. An ideal solution for loading 357 Magnum, 44 Magnum, and even 410-bore shotshell ammunition, its high loading density provides optimal velocity. Winchester 296 is also recommended for 410-bore AA loads.

Winchester 748

Winchester 748 is a ball powder and the choice for loading 223 Remington cartridges. The low-flame temperature extends barrel life compared to other similar speed powder. It is also ideal for a wide variety of centerfire rifle loads, including 222 Remington, 30-30 Winchester, 30 Winchester, and up to 485 Winchester Magnum.

Winchester 6.5 StaBall

Winchester StaBALL 6.5 is the world's first temperature-insensitive BALL Powder, stable in extreme-hot or -cold conditions. It provides optimal loading density in cartridges appropriate for the burn speed, which is ideal for 6 Creedmoor, 6GT, 6.5 Creedmoor, 7MM-08, 270 Winchester and many more. Typical of a ball powder, precise metering contributes to improved velocity and pressure standard deviations, ingredients that are paramount to match grade accuracy! This REACH-compliant, 'environmentally green' propellant has copper fouling reducer additives, meaning longer durations of competition and field shooting without having to clean the bore. Precision accuracy throughout the match! Velocity levels obtainable, depending on the cartridge, are 30-200 fps greater than other propellants in its class. Stability, Precision and Speed, says Winchester StaBALL 6.5 is the 'Best of the Best'!

Winchester 760

Winchester 760 is a ball powder designed to duplicate the 30-06 Springfield factory load ballistics. With ideal flow characteristics that give 760 an advantage over other propellants with similar burn rates, it is recommended as for 22-250 Remington, 300 Winchester Magnum and 300 WSM.