Ruger Caulking Gun - Manual (Page 9)

9
forward position against gas pressure during firing. The action handles rimmed,
semi-rimmed, rimless and belted cartridges, and the extractor-ejector
mechanism provides great leverage with only moderate force applied to the lever.
RUGER
®
NO. 1 rifles are manufactured in blued steel, stainless steel,
lightweight, standard, and heavyweight barrel models, with “semi-beavertail,”
“Alexander Henry,” and “International” (full-length) style walnut forends, or
weather resistant laminated hardwood in the case of the stainless steel models.
They are all mechanically identical and all versions incorporate integral scope
mount bases.
All mechanical components are made of heat-treated chrome-molybdenum or
stainless steel with music wire coil springs throughout the mechanism. The rifle
is equally usable by right-hand and left-hand shooters.
NOMENCLATURE
Figure 1. In this illustration the rifle has just been fired and an empty cartridge case is
shown in the chamber. The manual safety is shown in its forward “FIRE” (“OFF”) position,
permitting the sear to release the hammer and the rifle to fire.
The safety selector should
always be “ON” in its rearmost “SAFE” position whenever the rifle is not actually being fired.
See page 10.
OPERATION OF SAFETY
The RUGER ® NO. 1 rifle has a two-position, ambidextrous manual safety
located atop the rear of the receiver. It is operated by sliding it fully backward
and forward with the thumb.
The safety can be moved to the safe position only when the hammer is cocked.
Fully operating the under lever cocks the rifle. The rifle can be loaded and
unloaded while the safety is in the “Safe” position. The safety mechanism blocks
movement of the sear, and retracts the hammer slightly. It is the retracting of
the hammer which creates the feeling of ‘resistance’ when the safety is being
moved to the “Safe” position. When the hammer is cocked, the hammer spur
protrudes slightly below the lever. See the notation in Figure 1. The protrusion
of the hammer serves as a cocking indicator that can be felt and seen.