Ruger 77/50 - Manual (Page 23)

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Before taking the gun apart, set up to do it properly. Cover the work surface with
a soft cloth so that the gun finish (and sights) will not be damaged, and provide a
tray into which the parts can be put as they are removed from the gun
.
It is preferable to carry out these procedures on a workbench or table which has
a covered top. A piece of shallow nap rug or an old, coarse blanket is an ideal
covering. Such a covering not only reduces the chances of the rifle slipping and
being scratched, but it serves also to trap pins, plungers and springs that may
otherwise get lost. It is advisable to have a container – such as a shoebox – in
which each part can be placed as it is removed from the gun.
Before attempting to disassemble the rifle for the first time, study the parts
drawing and parts list so as to be familiar with the relative position, appearance
and name of each part. Carry out the disassembly slowly, and carefully note the
position of the part in the gun before starting to remove it. If a part is under
spring tension (such as, the Safety Selector, Bolt Stop, Trigger) remove it
cautiously and anticipate the direction the spring and plunger are most likely to
“jump.”
WARNING: If a spring or plunger become lost, do not use a substitute. Springs of
correct tension are vital to the safe and reliable performance of firearms. See
“Ordering Parts”, p. 39.
Before starting disassembly, remove the sling, scope and
rings and place the rear sight blade in its down flat position.
DISASSEMBLY
(Rifle Must Be Unloaded Prior To Disassembly)
1. Keep the rifle pointed in a safe direction! Put the safety in the “load-unload”
position.
2. OPEN THE BOLT AND CHECK TO BE CERTAIN THAT THE RIFLE IS
UNCAPPED AND UNLOADED.
Run the ramrod completely down the barrel to
make sure the rifle has no bullet or powder in the barrel.
3. TO REMOVE BOLT: Lift the bolt handle up. Depress the bolt stop on the left
side of the receiver. Remove the bolt from the rifle. (Before starting bolt
disassembly, study Figure 21).
4. TO DISASSEMBLE THE BOLT:
a. While holding the bolt, rotate the bolt sleeve clockwise (as viewed from
the rear of the rifle) to position shown in Figure 18, p. 24. The bolt sleeve
should be in the same position it is in when taken out of the receiver, but
the bolt sleeve may need to be rotated clockwise until the disassembly hole
is fully exposed.