Today I'm taking the SPAS-12 out to the range, to try a variety of ammunition and see what runs in it. The SPAS is a gas-operated shotgun that can be switched to manual pump operation for use with underpowered ammunition. This was originally intended as a way to allow things like beanbag and other less lethal rounds to be used by police forces - but it is also a way to run light practice birdshot that would not normally cycle the gas system. So let's see what runs and what doesn't!