Cycling a pump-action shotgun as done by the Rule of Cool. After firing, the wielder lets go of the trigger and holds the gun vertically by the forward grip in his other hand. He then jerks the gun sharply upward, letting its inertia and weight work the pump, then levels the gun and fires again. A variation involves a lever-action rifle, where the character does something similar but holds on to the lever only, letting the gun's recoil and weight cause the handle to pull itself.
Alternatively, it can be done prior to a fire fight, as part of a Lock and Load montage.
As seen in this shotgun tutorial video, attempting this in real life is possible, but inefficient. It also puts a lot of unnecessary strain on the gun's moving parts, and it's unsafe, as a considerable amount of force is required to rack the slide. It's very possible to lose your grip and send a now-loaded firearm flying across the room. On the other hand, this can be justified if the user in question is handicapped.
There is an actual technique for cycling a pump action with one hand (only used if your other hand is incapacitated), but it entails placing the butt on the ground and cycling against it, which is far safer and more controlled. A similar technique can be used to cycle the slide of a pistol, using the edge of a table to press on the front of the slide while not blocking the barrel.
Obviously, this move requires a pump-action shotgun (because pump-action rifles apparently don't exist in Hollywood), so a semi-automatic or bolt-action shotgun (yes, there is such a thing) won't work.
- The giant hand at the end of episode 5 of FLCL reloaded its giant shotgun one-handed.
- Near the end of the first season of Ghost in the Shell: Stand Alone Complex, the Major does this with a straight-pull bolt-action anti-materiel rifle (while the weapon is different, the effect is much the same) with one hand in a fashion rather similar to the "proper" way to cycle a pump-action shotgun with only one hand, though she braces the weapon against her thigh instead of against the ground and uses the recoil of the gun to lift it back up so she can cycle it again, no fewer than eight times while shooting a Mini-Mecha at point-blank range. Of some note, she isn't doing this to look cool or badass, but rather due to her other arm being mangled by machine gun fire from said Mini-Mecha.
- The Real Trailer, Fake Movie for Hobo with a Shotgun ends with a bloody, naked hobo pumping his shotgun this way.
- Cheech Marin's priest character in Machete does this with two shotguns simultaneously.
- The Hong Kong film Tiger on the Beat features an... elaborate version of this; Chow Yun-fat's character, Sergeant Francis Li, attaches a string to his shotgun's pump handle and trigger, so he can fire it from cover, in what can best be described as a shotgun yo-yo.
- Jean-Claude Van Damme does this a few times in Hard Target during the climactic battle inside an old warehouse.
- John Wayne was known for doing this in his films.
- Terminator 2: Judgment Day
- While the T-800 is riding his motorcycle and chasing John and the T-1000 down the canal, he spins his lever-action Winchester 1887 to reload it. Justified in-universe by the T-800 having metal "bones" in his fingers that can withstand the stress of this action. Also justified by how mind-blowingly badass he looked doing it. The prop shotgun that Arnold Schwarzenegger carried for the scene had an enlarged loop on the lever, and a lighter aluminum barrel, allowing him to do the trick without breaking his fingers. At one point, he mistakenly flipcocked the non-prop shotgun and almost did break his fingers.
- Sarah Connor does it at the end when shooting the T-1000 in the foundry; justified in that her right arm is wounded (though she still uses it for support while firing). Doubly justified in that Linda Hamilton spent a lot of time working out in preparation for this role, and wanted to show off her newfound skill.
- Rick O'Connel does this in The Mummy (1999). It's not even during a battle, he's just getting the gun ready stating, "I believe in being prepared."
- Ira, Harry and Wayne do this after killing one of the aliens in Evolution. No practical reason, just to look badass.
- The protagonist of The Rundown does this by way of necessity in the climax, given as he's managing to dual wield two pump-action shotguns.
- Done in Max Payne for no reason at all, other than to look cool. In the commentary, the director and producer even praise Mark Walhberg for making it look cool.
- Parodied in Scary Movie 3, where Anthony Anderson's character does this with his shovel... and somehow ejects a spent shell.
- Also spoofed in Hot Shots! Part Deux, where Ramada's attempt to do this causes the shotgun to slip off its grip and knock out a terrorist. She then tosses the now-useless grip at another terrorist and knocks him out, too.
- Played straight but justified in Splinter. Dennis was infected by one of the black spines early in the movie, and he had to cut off his arm to stop it from consuming him entirely. He's only got one arm to work the pump, and he can't stop to brace it against anything.
- Also justified in Shoot 'em Up as Clive Owen is carrying a baby in the other hand.
- In Equilibrium, Preston manages a variant of this with two shotguns at once while holding the pistol grip rather than the pump. According to the DVD commentary, Christian Bale actually pulled this off himself unaided.
- Fiona does this in the season 2 finale of Burn Notice.
- Happens a couple of times in Supernatural, although the boys tend to maintain proper firearms discipline. Usually averted, in that they're often just using double-barreled or lever-action shotguns and pumping is not a factor, but Sam seems to prefer a sawed-off Ithaca 37 (although it's often being used to prop up the lid of the Impala's weapons compartment) in later seasons, so it does happen from time to time.
- Chin of Hawaii Five-0 pulls this off in episode 4 of the first season when going to apprehend an escaped convict.
- Done by a mook in a bar in 'Due South'.
- Assault-class soldiers equipped with a shotgun in XCOM: Enemy Unknown and Rangers in XCOM 2 do this after each shot.
- Marathon features a double barreled Sawed-Off Shotgun with an Unorthodox Reload via Gun Twirling. This allows the Security Officer to dual wield shotguns and reload with no problems. The manual lampshades this by saying that the in-universe mechanics would be too complicated to understand.
- The Movies gives this as an option in a shotgun firing scene.
- The Engineer from Team Fortress 2 does this with 2 shotguns in the "Mann vs Machine" Trailer.
- In The Punisher the protagonist does this whenever he's wielding a shotgun in one hand and another weapon in the other. Guns Akimbo shotguns is possible making this look awesome, especially with alternating shots.
- In Fallout: New Vegas, the player does this when reloading the Hunting Shotgun while in third-person mode.
- Possible (but hard!) if the player decides to dual-wield shotguns in the arcade version of House of the Dead 3.
- The Resident Evil 1 remake for the Nintendo GameCube has a battle with a giant snake after Jill finds Richard bitten by said snake. If Jill can find some serum to tend to his wound, he'll rest for a while and then charge in when Jill meets the snake. When he does, he pumps his shotgun with one hand, owing to the fact that his other arm is still seriously wounded.
- In Sengoku Basara 3, Saika Magoichi does the Terminator flipcock reload after a charged shot from the shotgun. It counts as a melee attack if enemies get close enough to you.
- Warframe's Marelok lever-action pistol is pumped like the Terminator's Winchester; by spinning the weapon about the lever one handed. The Grinlok lever rifle, however, is pumped in a normal manner.
- The MMO Star Trek Online has the player doing this with the Klingon Honor Guard and Adapted MACO rifles when using the underslung pump-action grenade launcher on said weapons.
- Done by Snake during the hospital mission in Metal Gear Solid V: The Phantom Pain while on horseback with Ocelot being pursued by the Burning Man. Justified since Snake's left hand is missing and replaced by a Hook Hand.
- Postal 2: Paradise Lost has this as a consequence of being able to go Guns Akimbo with most guns, with the standard pump shotgun getting new pumping animations where the Dude throws the gun back to grab the pump, works it with one hand, then tosses it forward again to bring it back up to fire again. The lever-action shotgun, being a Winchester 1887, also naturally gets the typical Terminator-style flip-cocking animation, whether you're using it one or two at a time.
- In West of Loathing, Doc Alice pumps her shotgun in this fashion.
- DUSK only lets you wield the single shotguns akimbo, and you reload them after each shot by spincocking them Terminator-style.
- North does this, then throws the gun to South, who shoots in season 9 of Red vs. Blue. It makes sense, though—he's wearing power armor that greatly enhances his strength and the gun was picked up from someone killed earlier, anyway (so he doesn't care if it ends up in bad condition).
- Wash also tries this in season 8 and again it does make sense. First, he was hanging on to a moving car and had a rifle in his other hand, so he only had one hand free to attempt a reload. Second, the shotgun in question belonged to Sarge, so much like the above, he wouldn't care much if he damaged it.
- In The Simpsons, a nurse at Grampa's retirement home fires, one-handed pumps, and refires a shotgun several times to drive off a gunman sent by Mr. Burns to kill Grampa.
*cocks, fires* "Our residents!" *cocks, fires* "Are trying!" *cocks, fires* "To nap!"
- Pam does this in Archer as part of an extended Shout-Out to Terminator 2: Judgment Day. Justified by previous examples of her displaying almost superhuman strength.
- FBI Special Agent Edmundo Morales Jr. was forced to do this during the infamous Miami Massacre, after his left forearm was severely wounded.