Vihtavuori 3N37 Smokeless Handgun Powder

Vihtavuori 3N37 is a premium single-base smokeless handgun powder developed for competitive pistol shooting and high-performance handgun loads. Originally created for .22 rimfire ammunition, it has become one of Vihtavuori's most respected propellants for practical shooting, offering exceptional consistency, clean-burning performance and reliable metering across a wide range of popular handgun cartridges.

With a burn rate similar to Vihtavuori N350 , 3N37 is particularly well suited to full-power and 9 mm Major competition loads used in IPSC and USPSA Open Division. Its fine, tubular grain structure meters exceptionally well through powder measures, producing highly consistent charge weights for precision handloading. Favoured by competitive shooters around the world, 3N37 delivers the clean-burning characteristics and accuracy for which Vihtavuori powders are renowned.

Features

• Premium single-base smokeless handgun powder
• Medium burn rate comparable to Vihtavuori N350
• Excellent choice for full-power competition handgun loads
• Popular for 9 mm Major IPSC and USPSA ammunition
• Fine tubular grain provides outstanding metering consistency
• Clean-burning formulation reduces fouling
• Delivers excellent accuracy and shot-to-shot consistency
• Suitable for a wide range of handgun cartridges
• Manufactured in Finland to exacting quality standards
• Available in multiple container sizes depending on market availability

Suitable Cartridges

Vihtavuori provides published load data for a broad range of handgun calibres, including:

• 7.62×25 Tokarev
• 9 mm Luger (9×19)
• 9×23 Winchester
• .357 SIG
• .38 Super Auto
• .38 Special
• .357 Magnum
• .40 S&W
• 10 mm Auto
• .44 Remington Magnum
• .45 ACP
• .45 Colt
• .45 Winchester Magnum
• .454 Casull

Important Information

Always consult the latest Vihtavuori Reloading Guide or official Reloading Data Tool before handloading. Use only published data for the specific cartridge and components, and follow recognised safe handloading practices.

Barry & Son recommendation

• N120 – Fast-burning rifle powder for small-capacity cartridges and selected sporting applications
• N310 – Very fast-burning handgun powder for precision target loads
• N320 – Fast-burning, versatile handgun powder for target and competition loads
• N330 – Medium-fast handgun powder for target and competition applications
• N340 – Medium-burning handgun powder for a broad range of applications
• 3N37 – Competition-oriented handgun powder for selected higher-performance loads
• 3N38 – Slower-burning competition handgun powder for specialised applications