Ruger 77/50 - Manual (Page 27)

27
CARE AND CLEANING
BLACK POWDER FOULING
The chemical compounds formed by Black Powder and Pyrodex residue and
certain percussion caps are extremely corrosive; rusting will begin within a very
few hours after firing, if the rifle is left uncleaned under some conditions of
humidity. Fouling will also slow down or “bind up” moving parts, possibly
resulting in misfires (failure to fire), and “hangfires” (firing delayed up to a few
seconds). It is, therefore, important that your RUGER
® MODEL 77/50 be
cleaned thoroughly and without delay after each use. Furthermore, Black Powder
fouling promptly hardens with the passage of time making disassembly difficult,
and this fouling is extremely corrosive, even to stainless steel.
A firearm must be free of rust, dirt, grease and firing residues to function safely
and reliably. Periodic maintenance, which includes inspection of components to
determine if they are in proper working order, is absolutely essential.
WARNING: ALWAYS BE CERTAIN THE RIFLE IS
COMPLETELY UNLOADED BEFORE CLEANING.
REMOVE CAP, POWDER, AND PROJECTILE.
!
THIS IS AS FAR AS YOU NEED TO DISASSEMBLE THE RIFLE FOR ROUTINE
CLEANING AND MAINTENANCE. SEE P. 30 FOR “REASSEMBLY”
INSTRUCTIONS. DETAILED DISASSEMBLY INSTRUCTIONS FOLLOW FOR
FURTHER DISASSEMBLY ONLY WHEN REQUIRED IN CASES OF HEAVY
FOULING, IMMERSION IN SALT WATER, ETC.
DETAILED DISASSEMBLY
1. To remove the trigger: (Safety Selector should be in the “Fire” position).
a. While holding the trigger in place, press out the trigger pivot pin.
(Caution: Trigger is spring loaded and under tension --- be careful!).
b. Remove the trigger and trigger/sear spring.
2. To remove the bolt stop and sear:
a. Press out the sear/bolt stop pivot pin.
b. Remove the bolt stop and bolt stop spring.
c. Turn receiver upside down and slide sear forward. Sear will drop out of
the top slot in the receiver.
3. To remove safety assembly:
a. Rotate the safety selector so that the upper section is positioned fully
over the center of the receiver tang.
b. While holding the safety selector in place with thumb and forefinger,
slide the retainer up out of receiver. (Caution: Safety Selector is under
spring tension from a spring and plunger acting against the lower section of
the safety selector. The spring and plunger will jump out if not contained).
c. Lift out the safety selector.
d. Remove the safety selector detent and safety selector detent spring.
See page 30 for “Reassembly” instructions.