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Old February 15, 2013, 12:09 AM   #5
JohnKSa
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Join Date: February 12, 2001
Location: DFW Area
Posts: 24,985
Quote:
What happens with an auto loader is, after a round is fired, the mechanism automatically extracts, ejects, and reloads the chamber without any further action by the shooter.
I can't think of anything to add to this.
Quote:
The most obvious thing I can think of is that a revolver retains the fired cases in the cylinder...
Not only is there no ejection, in a revolver, the action is cycled by the shooter, either using the trigger in a DA design, or by cocking the hammer in an SA design. The chambers are also loaded by the shooter.

Revolver.
  • Shooter manually loads the chambers.
  • Shooter manually cycles the action (rotates the cylinder) either by cocking the hammer or by pulling the trigger.
  • Shooter manually unloads the chambers/ejects spent casings.
Semi-automatic.
  • First round is loaded manually either by cycling the action or dropping the bolt/slide.
  • Subsequent rounds are loaded from the magazine by the energy of recoil, or the pressure of gas, from discharge.
  • The action is cycled by the energy of recoil, or the pressure of gas, from discharge.
  • Spent casings are ejected by the energy of recoil, or the pressure of gas, from discharge.
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