Vihtavuori N340 is a flexible powder, perfectly suited to medium- and high-intensity high-velocity pistol loads. N340 works excellently in high-intensity cartridges such as the .357 and .44 Magnum, 40 S&W and .357 SIG. The wide application range of N340 powder includes, for example, the following pistol cartridges: 9 mm Luger, 9×21 mm, .38 Super Auto, .38 Special, 10 mm AUTO, .44 S&W Special, .45 ACP and .45 Colt.
Previously known as 3N18, N340 is a true multi-purpose powder, originally developed for 9 mm and shotshell loads. This pistol powder is one of the most popular in the Vihtavuori N300 series and can be used for a wide range of calibres and bullet weights, making it an excellent partner for all loading tasks. N340 is especially often used for medium- and large-calibre pistols and shotshells with medium- and heavy-weight loads.
N340 is a tubular-type powder with grain dimensions of 1.0 mm long and 0.8 mm in diameter. This is exactly the same grain size as the N320, N330 and N350 powders – only the powder’s porosity differs. N340’s burn rate is medium on the Vihtavuori pistol-powder scale, and, as with N320, N340 ensures extremely clean burning with no residue.