RS40 derives directly from our successful, military-qualified 5.56 mm propellant powder. This makes it the perfect powder for .222 Rem. and .223 Rem. It also works extremely well with medium-bore cartridges such as the .308 Win. in combination with lightweight bullets.
.308 Win. with lightweight bullets
RS40 is an extruded, single-based propellant powder based on nitrocellulose. A unique impregnation method using nitroglycerine assures top performance.