The N340 is utilized specifically for handguns and shotshells with medium to weighty loads and medium to substantial calibers. The powder type N340 has grain measurement of one.0 mm in duration and 0.8 mm in diameter. The grain dimensions is identical to powders N320, N330, and N350; the sole change https://24n4106825.wikigiogio.com/138457/what_does_vihtavuori_n135_rifle_powder_mean