AS is a fast-burning, single-base propellant. Identifier: pink and light green flakes. AS is formulated to provide quick-hitting, high-energy propulsion. It is ideal for light 12-gauge target loads and lightweight lead-shot high-velocity field loads, from 3/4 oz to 1-1/8 oz in 12 gauge. AS is similar in character to WST, Red Dot, and American Select.