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"
a. Turn the gas regulator clockwise as far as possible.
b. Turn the regulator counter-clockwise 1 turn or 14 clicks.
c. Fire single rounds successively with only one round contained in
the magazine each time. After each shot, rotate the regulator in the
required direction until only sufficient gas acts on the piston head as
to cause the action to be engaged by the holding open device.
d. Then turn the gas regulator clockwise for temperate weather
conditions and four clicks clockwise for cold weather conditions.
During firing, if the gas regulator requires adjustment, unload the rifle, and proceed as follows:
a. If there is insufficient gas to operate the mechanism, adjust the
gas regulator by rotating it clockwise two clicks at a time, as necessary.
b. If there is too much gas resulting in excessive recoil on the
firer's shoulder turn the gas regulator counter-clockwise two clicks at a
time until the correct balance is obtained."