All our modest caliber propellants are of extruded style. Propellant grains are perforated cylinders, flakes or other designs extruded for Unique programs. Grain geometry optimizes the burning habits to the supposed software. Vihtavuori has the widest number of small caliber gun propellants available. The commercial reloading powders match with our https://meridian-firearms.com/product-category/smokeless-powder-in-stock/vihtavuori-powder-for-sale/