RS50 is a universally useable .308 Win. propellant. It is extremely benign and therefore ideal for use in many popular, medium-bore hunting calibres. .308 Win. .375 H&H Mag. 7 mm – 08 Rem. 8 x 57 IS 9.3 x 64 Brenneke RS50 is an extruded, single-based propellant powder based on nitrocellulose. The surface is coated with camphor. This results in balanced temperature behaviour with moderate pressure at high temperatures.