Page 66 - FAT 105 4.17 MOODLE

REVOLVER ACTION • The trigger is pressed, releasing the ham-
mer and discharging the cartridge. Once
The revolver-style action is so named because of the hammer has fallen, the bolt will drop
the use of a revolving cylinder, which contains and free the cylinder. (4)
several chambers. The revolver-style action is
very unique in design and operation. When the • The hammer is cocked again, rotating the
action is manipulated, a rotating cylinder aligns cylinder and aligning a fresh cartridge. (5)
various chambers with the barrel in preparation
• Once all the rounds have been fired, the
for firing. The revolver-style action is used with
cylinder can be unloaded. Set the ham-
pistols, rifles, and shotguns. The revolver-style
mer to the half-cock position and open
action system is a manual action that must be
the loading gate. Align the first chamber
manipulated by the operator in order to com-
with the opening of the loading gate. (6)
plete the cycle of operations. There are two basic
operation types of the revolver action: single- • Depress the ejector rod to kick the
and double-action. With an empty and locked empty case from the chamber. Rotate the
action, the cycle of operations for a single-ac- cylinder and repeat the process until all
tion (Figure 36), revolver-style action firearm is the chambers have been unloaded. (7)
as follows:
• The action is now open, the chamber is
• The hammer must be set to a “half-cock”
exposed, and the firearm is ready to be
position, which allows the cylinder to
loaded once again.
rotate freely. This is the unlocking step in
the cycle of operations. (1) With an empty and locked action, the cycle of
operations for a double-action (Figure 37), re-
• A hinged door on the side of the re-
volver-style action firearm is as follows:
volver, called the loading gate, is swung
down into the open position. With the • The cylinder release is depressed, allow-
rear of the cylinder exposed, rounds are ing the cylinder to swing out from the
loaded by hand, one by one, rotating the frame and expose all the chambers at the
cylinder between rounds (five to eight). same time. (1)
Once all the chambers have been loaded,
• All chambers are loaded by hand and the
the loading gate is closed. (2)
cylinder is swung back into the frame. (2)
• The hammer is set to the cocked posi-
• One of two operations can happen:
tion. As the hammer is being cocked,
1. The hammer can be cocked like a
linkage pushes a part called the hand
single-action revolver, simultaneously
into a part on the cylinder called the
turning and locking the cylinder. 2. The
ratchet. Also, at the same time, a part
trigger is pressed, simultaneously cocking
called the bolt begins to rise from the
the hammer, rotating the cylinder and
frame. Almost simultaneously as the
locking it before dropping the hammer
hammer fully cocks, the hand will rotate
and firing the cartridge. (3)
the cylinder until the chamber is per-
fectly aligned with the barrel. When the • The hammer can either be cocked again or
barrel and cylinder are perfectly aligned, the trigger can be pressed once more. (4)
the bolt will engage the locking notch on
the cylinder and lock the chamber. (3)

62