After you have fired a pump-action shotgun, the only way to chamber another round is to pump it again.

NEWYORKER: A Loaded Gun

The firearms ranged from a pistol from the 1930s to a pump-action shotgun.

BBC: Dinas Powys gun arsenal found in flat

The farmer was cleared of attempting to murder Fearon and of possessing a pump-action shotgun with intent to endanger life.

BBC: Farmer's lawyers launch formal appeal