vihtavuori n550 OverviewMidwest now features VihtaVuori N550 Smokeless Powder in stock now for sale in 1 Lb and 8 Lb.N550 is employed by the ideal shooters and companies in the shooting sector, Vihtavuori N550 Smokeless Powder has attained a superb name for being the most effective smokeless powders available.Vihtavuori Smokeless Powder N550 (one l