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 and use published load data for your specific cartridge, projectile and primer combination. Never exceed recommended maximum loads and follow all recognised safe handloading practices.

Barry & Son recommendation

• N310 – Ultra-fast for precision target and Bullseye loads
• N320 – Fast-burning all-round target powder
• N330 – Versatile medium-fast powder for target and field loads
• N340 – Medium burn rate for high-velocity service and magnum handgun loads
• 3N37 – Competition powder for IPSC/USPSA Major loads
• 3N38 – Premium powder for maximum Major power factor ammunition