Originally developed for 5.56 Nato cartridge, Vihtavuori’s N133 is a multipurpose rifle powder for centerfire .22 cartridges and PPC caliber cartridges.

Vihtavuori N133 is a tubular powder with grain dimensions of 1,1 mm length and 0,8 mm diameter. The burn rate is medium in the scale of our rifle powders, and it works like a charm with .223 Remington, and practical shooters and others using the AR-15 will know the utmost quality of the Vihtavuori 133. It is also a supreme choice for handloaders shooting 6 PPC standard rifle, and benchrest shooters all over the world rely on the combination of the Lapua .220 Russian brass and Vihtavuori N133. This is probably the most popular powder in 100 meters and 200 meters bench rest shooting competitions: a countless number of competitions have been won using this reloading powder!