Winchester 231 Smokeless Gun Powder

Winchester Smokeless Powders have been around since the late 1800s. Customers that have shot Winchester factory loaded ammunition know that quality of propellant they’re receiving as soon as the first shot is fired. Bring that quality home to the reloading bench with the Winchester family of powders.

The 231 powder is clean, consistent and an excellent powder for just about any handgun load.

Trusted Handgun Workhorse: Versatile & Proven

Winchester 231 (W231) is one of the most popular ball-type handgun powders in history prized for its versatility across common pistol cartridges. It’s ideally suited for .38 Special, .45 ACP, and 9mm standard loads and performs reliably in many other handgun applications, making it a go-to choice for both casual reloaders and competitive shooters.

Clean, Low-Flash Performance You Can Count On

Expect a clean-burning, low-flash formula that helps keep barrels and actions cleaner during long range sessions and high-volume practice. That cleaner combustion improves semi-auto cycling reliability and extends the time between full bore cleanings a major convenience for instructors, range regulars, and anyone who likes to shoot a lot without constant maintenance.

Smooth Metering & High-Volume Efficiency

Although labeled a ball powder, W231 meters exceptionally well and is known for consistent charge weights and flow making it easy to use on both progressive and single-stage presses. Many reloaders praise its predictable metering for fast, repeatable batches of practice or match ammo. Available in common retail sizes (1 lb, 4 lb, 8 lb), it’s convenient for hobbyists and high-throughput loaders alike.

Why Choose Winchester 231:

• Ideal for .38 Spl, 9mm, .45 ACP and many pistol loads.

• Clean-burning, low muzzle flash for easier maintenance.

• Excellent metering and consistent lot-to-lot performance.

• Offered in practical container sizes for bench and bulk loading.

Other Important Information:

• Do not exceed the loads displayed in the reloaders guide.
• Never mix any two powders regardless of type, brand, or source.
• Never substitute any smokeless powder for Black Powder or any Black Powder substitute.