Vihtavuori N330 Smokeless Gun Powder: Versatile 9mm Luger & All-Around Pistol Powder

Vihtavuori N330 is a porous single-base N300-series handgun powder and one of the most versatile powders in Vihtavuori’s pistol lineup. It’s especially designed for 9mm Luger but performs well across a wide range of loads, from light target ammunition to heavier high-velocity loadings, making it a popular all-around choice for handgun reloaders.

Built for All-Around Handgun Performance

N330 uses a porous, graphite-coated granular grain (not a spherical ball powder) that meters cleanly and resists static buildup. On Vihtavuori’s own N300-series burn-rate chart, N330 sits in the lower-middle of the pistol lineup — faster-burning than N340, N350, and 3N37, slower-burning than N310 and N320. Compared to common U.S. powders, N330 burns close to Alliant Unique and Alliant Power Pistol rather than faster powders like Winchester 231/HP-38. Vihtavuori’s full production process, from nitrocellulose manufacture to final bottling, has delivered consistent lot-to-lot performance for more than 85 years.

Application Versatility

N330 is especially designed for 9mm Luger but is also suitable for .38 Special, .40 S&W, .44 S&W Special, and .45 Colt, with additional published data for 9mm Browning Court/.380 Auto, .38 Super Auto, .357 Magnum, and .45 Auto. It’s a favorite for reloaders who want one powder that covers light target loads through heavier-velocity defensive and competition loads. If you need a slower-burning N300-series option for magnum revolver cartridges, Vihtavuori N350 is worth comparing.

Load Development

Always use published, manufacturer-tested load data when developing loads with N330. Start at the published minimum charge and work up in small increments, weigh every charge on a calibrated scale, and chronograph each string to track velocity consistency. Keep primer brand, bullet lot, and brass lot constant during development, watch for pressure signs, and document charge weight, seating depth, primer, and chronograph results so successful loads can be reproduced.

Quick Specs

• Type: Porous single-base handgun powder, N300 series, lower-middle burn rate (faster than N340/N350/3N37, slower than N310/N320), comparable to Alliant Unique/Power Pistol
• Manufacturer: Vihtavuori (Finland)
• Best for: 9mm Luger, .38 Special, .40 S&W, .44 S&W Special, .45 Colt, and other versatile pistol loads from light target to high-velocity
• Container sizes: 1 Lb, 4 Lb

Safety Reminders

Before loading, review a few important guidelines. Never exceed the loads displayed in your reloading guide. Never mix two powders together, regardless of type, brand, or source. Never substitute smokeless powder for Black Powder or any Black Powder substitute. Store N330 in its original, sealed container in a cool, dry, well-ventilated place away from sunlight and heat sources.

Vihtavuori N330 For Sale, In Stock

USReloadingPowder keeps Vihtavuori N330 Smokeless Gun Powder in stock for handgun reloaders who want a versatile, all-around 9mm and pistol powder. Browse the rest of our lineup on the Vihtavuori Powders category page.

FAQs

What cartridges is N330 best for? It’s especially designed for 9mm Luger, and is also suitable for .38 Special, .40 S&W, .44 S&W Special, and .45 Colt, with additional data available for 9mm Browning Court/.380 Auto, .38 Super Auto, .357 Magnum, and .45 Auto.

How does N330 compare to Winchester 231 or HP-38? N330 burns slightly slower than 231/HP-38 — it’s closer in burn rate to Alliant Unique and Power Pistol.

Is N330 a spherical (ball) powder? No. N330 is a porous, granular single-base powder with a graphite-coated surface for clean metering, not a spherical ball powder.

How should I store it long-term? Keep it sealed in its original container, stored in a cool, dry, ventilated location away from heat and sunlight. Proper storage keeps powder stable for years.