Pacific Rifle
Pacific Rifle Company

PO Box 841
Carlton 97111
Oregon Republic
(503) 476-4609
info@pacificrifle.com

Pacific Rifle
The Zephyr
Underhammer Design
Barrels and Rifling
Loading
Ballistics 20-bore
Ballistics 12-bore
Philosophy of Quality
African Zephyr
Specifications
Drawing Board
Our Catalog


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The Underhammer Design
The Zephyr is utterly simple in design: there being only two moving parts, the hammer and the trigger. These are mounted into its solid metal receiver on large sturdy pins.
diagram of parts

Sectioned view of receiver illustrating simplicity of design with action arrested at the half-cock. Parts enumerated thus: 1. hammer; 2. trigger; 3. receiver; 4. barrel; 5. buttstock; 6. triggerguard/mainspring; 7. triggerspring; 8. breechplug; 9. stockbolt; 10. nipple.

Zephyr's trigger is in direct engagement with its hammer, thus eliminating the need for extra parts such as the sear, tumbler and the bridle, as well as their attendant small screws and spring.

As further evidence of its unique simplicity, the Zephyr's triggerguard is constructed of the Highest Quality spring steel and serves also the function of the mainspring, imparting power to the hammer to fire the rifle.

What customers say about their Zephyr rifles: 

“The underhammer action is easy to operate and is positive in function.” 

“At the range, the Zephyr will cut the hole of the first round if I do my part.”

diagram
Mounting the hammer below the receiver, where it swings upward to the barrel, offers several logical advantages over the side-mounted hammer with its separate lockplate.
  • The View of both the sights and game is not interrupted by the distraction of a hammer protruding into the field of view.
  • This system keeps the flash of the cap from the Eye and provides a greater margin of Protection to the face from possible cap shrapnel.
  • Mounting the hammer below the barrel further allows placement of the nipple directly into the barrel without need of a separate bolster. So arranged, the cap flash is projected directly into the powder charge resulting in Instantaneous Ignition and Improved Accuracy.
  • The bottom-mounted nipple is granted greater Protection from inclement weather and greatly reduces the possibility of the percussion cap being inadvertently displaced by passage through brush. Both features being much touted by proponents of the more recent “in-line” designs.

Where ordinary rifles fail the Zephyr shall prevail!