<P> In pump action or slide action firearms, a grip called the fore end is manually operated by the user to eject and chamber a new round . Pump actions are predominantly found in shotguns . An example of firearms using the pump action are the Remington 870 and Winchester Model 1897 . </P> <Ul> <Li> Rotary cannon: Gatling gun, M134 Minigun </Li> <Li> Chain gun: Hughes Chain Gun, Guycot Chain Rifle, Treeby chain gun </Li> <Li> Kalthoff repeater </Li> <Li> Cookson repeater </Li> <Li> Belton flintlock </Li> <Li> The Jennings Magazine Rifle </Li> <Li> Meigs Sliding Guard Action Repeater </Li> <Li> Roper repeater </Li> <Li> The Orvill Robinson Model 2 rifle: Orvill Robinson, a New York - based firearms designer, developed two rifles . His first, patented in 1870 and commonly referred to by collectors as the "Model 1" though it has no official designation, was a precursor to straight - pull bolt actions like the Mannlicher M1886 . The second rifle designed by Robinson, patented in 1872, was very different, employing a double hinged action that folded upward from the receiver to remove the spent casing and back down and forward to chamber a new round . Though hammer - fired, it is recognizable as a manually actuated ancestor of the toggle action found in firearms such as the Luger Parabellum 1908 pistol or Pedersen Rifle . </Li> <Li> Krag - Petersson Rifle Though frequently classified as only single - shot firearms, one tilting block rifle usually falls under the category of repeating firearms . The, upon ejecting a round from the chamber, would load a round from the underbarrel magazine onto the loading surface of the tilting block, then raise it to the mouth of the chamber where the user could then easily push it forward into the chamber . Though this would not meet most standards of "repeating" for most modern users, the classification has been in use historically . </Li> <Li> Remington - Rider Magazine Pistol has a manually - actuated rolling block action to pull a cartridge from a tubular magazine set below the barrel and simultaneously cock the weapon . The block was rolled back into battery, loading the cartridge into the chamber, by spring pressure while the hammer remained in the cocked position . Remington Nylon 66 . 22 Rimfire Semi-Automatic Rifle </Li> </Ul> <Li> Rotary cannon: Gatling gun, M134 Minigun </Li> <Li> Chain gun: Hughes Chain Gun, Guycot Chain Rifle, Treeby chain gun </Li>

When should a firearm be loaded with the action closed