Vihtavuori N300 reloading powders for handgun and pistol

The N300 series powders are ideal for handgun and shotgun loads.

A New and Advanced Process Added to our N300 Series powders!

We have recently undertaken some major improvements in the production of our high-quality N300 series powders. This newest change involves the application of graphite as a finishing step in production. As always, our smokeless powders undergo a stringent series of quality control checks throughout the manufacturing process. Before it ever ends up in a reloading bottle, we’ve checked and rechecked it at every step of the way. Our goal is to continuously improve our powders to give our reloading customers every possible competitive advantage in any shooting discipline.

In this latest improvement, we have changed the manner in which the nearly completed powder is given its final coating. Graphite is added to the surface of these powders during the vacuum drying stage. The graphite serves to eliminate static electricity, and makes the finished powder flow smoothly and evenly through loading machines and powder measures.

N300 series powder information

Bulk density (g/l)

N310 N320 N32C N330 N340 N350 3N37 3N38 N105
560 550 420 620 620 660 720 730 730
N310 N320 N32C N330 N340
560 550 420 620 620
N350 3N37 3N38 N105
660 720 730 730

Energy content (J/g)

N310 N320 N32C N330 N340 N350 3N37 3N38 N105
4100 4100 3050 4100 4100 4100 4100 4000 3950
N310 N320 N32C N330 N340
4100 4100 3050 4100 4100
N350 3N37 3N38 N105
4100 4100 4000 3950

Consumer Package information

N300 series handgun powders are available in the following bottle sizes:

Consumer package, bottle 1,2 ltr (73.2 in3)
Measures: sides & height 95 x 75 x 226 mm
net weight gross weight
N310, N320, N32C, N330, N340, N350, 3N37, 3N38, N105 0,5 kg 0,6 kg
N310, N320, N32C, N330, N340, N350, 3N37, 3N38, N105 1.0 lbs 1.2 lbs
Consumer package, bottle 4,5 ltr (274.6 in3)
Measures: sides & height 135 x 189 x 260 mm
net weight gross weight
N310, N320, N340, 3N37, 3N38 2,0 kg 2,2 kg
N310, N320, N32C, N330, N340, N350, 3N37, 3N38 4.0 lbs 4.4 lbs


Material Safety Data Sheet

Safety data sheet N300-series

For optional language versions of the above safety data sheet, please email us at sales.vihtavuori (a)


N310 handgun powder

Vihtavuori N310 is an extremely fast-burning pistol powder, ideally suited to light, target type loads. It gives outstanding accuracy in a wide range of cartridges from the .32 S&W Long to .45 ACP wadcutter loadings. Clean burning, consistent and easy to load, Vihtavuori N310 is the top choice for the competitive Bullseye pistol shooter. Read more »

N320 handgun powder

Vihtavuori N320 handgun powder is a fast-burning powder for use in light to mid-range target loads, in cartridges ranging from the 9 mm and .38 Special, up to the .44 Special and 45 ACP. It's capable of producing higher velocities at acceptable pressures than the N310, and it provides the handloader a bit more versatility at the loading bench. Read more »


Vihtavuori developed Tin Star specifically for Cowboy Action Shooting. It is a single base nitrocellulose gun powder with certain properties that are similar to Black Powder, but with none of the unfavorable characteristics associated with that propellant. Tin Star gun powder is reliable, burns cleanly and has the bulk density you want for reloading the old original Black Powder cartridges.
Read more »

N330 handgun powder

N330 handgun powder provides a wide range of latitude for the handgun shooter, serving well for everything from light target to heavier high-velocity loadings. This is a versatile powder suitable for an exceptionally broad range of applications, especially designed for 9 mm Luger but also suitable for .38 Special, .40 S&W, .44 S&W Special and .45 Colt. Read more »

N340 handgun powder

Vihtavuori's N340 is a flexible powder that serves well in medium to heavy high-velocity handgun loadings. N340 is a good performer in high intensity rounds like the .357 and .44 Magnums, the 40 S&W and the .357 SIG cartridges. Read more »

N350 handgun powder

Vihtavuori N350 is the slowest in the N300 series of handgun powders. It is ideal for very heavy loadings, and top end velocities and energies from a broad range of pistol and revolver cartridges. It is very well suited to loading powerful rounds for example in calibers 9 mm Luger, 10 mm AUTO and .45 ACP. Read more »

3N37 powder

Originally developed as a powder for loading .22 rimfire cartridges, Vihtavuori 3N37 has a burn rate very similar to N350, and can be used for many of the same applications. As handgun shooters began to experiment loading with 3N37, they found that this fine-grained powder loaded evenly through measures and gave excellent results from a range of competitive cartridges used for USPSA and IPSC practical shooting disciplines. Read more »

3N38 powder

The 3N38 is a specialized powder designed specifically for competitive handgun shooting with high-velocity loads in the 9mm and .40 S&W cartridges. A relatively slow-burning powder, 3N38 is a perfect choice for making Major with good accuracy and the clean-burning characteristics for which Vihtavuori is renowned. Read more »

N105 Super Magnum

N105 Super Magnum is Vihtavuori's slowest burning pistol powder, intended for the most powerful handgun cartridges in use today, particularly with heavy bullets and/or large case volume. Many of these specialized rounds operate at rifle pressures. Delivering this type of shooting performance is precisely what prompted the development of N105. For such powerhouse calibers as the .454 Casull or .500 S&W, N105 is an excellent reloading powder choice. Read more »