Winchester 231 Powder Now In Stock Winchester 231 Smokeless Powder is a great choice for many popular pistol cartridges. It is used in .38 Special, 9x19mm, .45ACP, and many more. This Smokeless Powder is a clean-burning powder with a medium burn rate. It also produces a low flash signature. Summary Win231 Smokeless Powder is a great choice for pistol reloaders. This Smokeless Powder is a medium-burning, low flash powder perfect for .38SPL, 9mm, and .45 ACP, just to name a few. It is a clean-burning powder that will make clean-up a breeze. Specifications and Features: Great for pistol Wide range of cartridges from 9mm through .45ACP Low flash signature and a medium burn rate Clean burning
