Ramshot powders are double-based, spherical-shaped, smokeless powders that meter easy, burn clean and produce high velocities. Excellent lot-to-lot consistencies for repeatable accuracy between loads.
Zip is a flat, spherical powder with excellent performance at low charge weights. Ideal for high volume, cost conscious reloaders. Great choice for target and competitive shooters. Works well in 9mm, .38 Special, .40 S and W, and .45 ACP.
Sinclair, Issue:4A, Page:097