THE JEWELL TRIGGER
(Patent No. 4671005)
REMINGTON 700,40X, ETC. CUSTOM BENCHREST & SAKO FINNFIRE
P94

I. GENERAL INFORMATION
Covered by 17 claims in Patent No. 4671005. The unique
geometry was designed to allow minimum load at the sear
engagement point and to provide maximum ad|usiabiirty in
pull force, sear engagement, and overtravel
without removing the action from the stock or the trigger
from the action.
II. MATERIALS
A. Internal parts are 3/16" 440C stainless steel,
heat treated and tempered throughout to 58 Rockwell C scale.
B. Side plates are .050' aircraft grade 300
series stainless sheet steel.
C. All hardware, including through pins, main
spring. spacers, and screws, are stainless steel.
III. FEATURES
A. Modular design allows tolal disassembly for
maintenance and cleaning.
B The forward mounting spacer and a pin in the
firing pin stop that operates in a hole In the left side
plate allows the trigger to stay together as a single
assembly when not installed.
C. The light load at the sear enables short,
crisp, creep-free, and repeatable operation.
D. Installation: The mounting hold pattern allows
use in most actions that utillize the Remington 700 type
trigger.
E. Range of Ad|ustment:
1. BR (Light Pull Competition Model): 1.5 oz. to 3.0
oz.)
2. HVR (Hunting/Varmint Model) with:
a. Spring A: 8.0 to 56.0 oz.
b. Spring B: 2.0 oz. to 16.0 oz.
c. Spring C: 1.5 oz. to 3.0 oz.
d. Pull above 56 oz. (3 1/2. Ib.) optional.
Note: Settings below those stated Is not recommended.
F. OPTIONS
1. Positive Cam Safety (BR or HVR).
a. Bottom mounted lever, left or right
b. Top mounted lever (Rem. 700 type) left or right
2. Bolt release lever, (Rem. 700 type) left or right
3. Two-stage operation (HVR only).
BR TRIGGER
The firing pin block (11) Is held in the cocked position
by the vertical alignment of upper lever (6) and lower lever
(7) which is captured In the locked position by sear (5).
Rotation of the trigger shoe (4) releases sear (5) from
the upper lever (6) allowing the upper lever (6) and lower
lever (7) to collapse to a folded position (See Figure 2),
allowing block (11) to fall, thus releasing the firing pin.
The levers (6) and (7) will stay In the collapsed
position until the boll is open, at which time spring (10)
forces the levers (6) and (7) back to cocked position. Sear
(5) is reset by compression of spring (9).
| Fig.1 (Cocked) |
Fig.2 (Fired) |
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HVR TRIGGER
The firing pin block (11) Is held in the cocked position
by the vertical alignment of upper lever (6) and lower lever
(7) which is captured in the locked position by sear (5).
Rotation of the trigger shoe (4) releases sear (5) from
the upper lever sear (8) allowing the upper lever (6)
and lower lever (7) to collapse to a folded position (see
Figure 2), allowing block (11) to fal, thus releasing the
firing pin.
The levers (6) and (7) will stay in the collapsed
position until the boft is open, at which time spring (10)
forces levers (6) and (7) back to cocked position. Sear (5)
is reset by rotation of upper lever sear (8) on it's pivot
pin (13). It is maintained in a down loaded position by the
end of spring (10).
| Fig.1 (Cocked) |
Fig.2
(Fired) |
 |
 |
ADJUSTMENT PROCEDURES (BR and HVR)
The
trigger has been adjusted for most applications when
shipped. Personal preference, however, may require
adjustment on one or more settings.
All adjustment screws are filled with Nylon inserts to
maintain their set positions. The use of external locking
compounds is not necessary.
Screw (1) sets sear engagement (in = less sear
engagement).
Screw (2) sets overtravel (in = more overtravel).
Screw (3) sets pull force (in = more pull force).
Initial Adjustment Procedure:
1. Ensure that rifle is unloaded!!!
2. Cock action, turn screw (1) inward until action fires.
Back screw out approximately 3/4 turn.
3. Recock action, turn screw (2) out until it contacts
tab (12). While applying pull on the trigger shoe, turn
screw inward until action fires. Turn screw inward another
1/4 turn.
4. Recock action and measure pull force. Turn screw (3)
in for more pull force or out for less pull force. Do not
exceed specifications for pull settings.
5. Operate action for your particular method of shooting
and adjust as needed.
Note: Rapid firing practices may require slightly more
sear engagement or pull force to prevent unwanted firing.
Cleaning: Flush after each barrel cleaning with
lighter fluid. The use of lubricants is not recommended.
SAFETY (OPTIONAL) BR and HVR
The safety, when applied, rotates a cam (14) to a
position that pushes the sear of the upper level (Fig. 1)
off the sear of the trigger shoe and blocks movement of the
operating parts, allowing the trigger shoe to move freely.
The safety cam is spring loaded to either the fire or safe
position, as selected. Rotation of the safety cam is made
possible with either a single, bottom activated lever, or
the top activated multiple-link arrangement
Care must be taken on installation that there is positive
clearance between the levers and stock, as some stock or
trigger guard material may require trimming. Ensure that the
safety levers can operate to the full range of travel.
| Fig.1 (Safety ON) |
Fig.2
(Safety OFF) |
 |
 |
| Fig.1
(Safety ON) |
Fig.2
(Safety OFF) |
 |
 |
| Fig.1 (Safety ON) |
Fig.2
(Safety OFF) |
 |
 |
BOLT RELEASE (OPTIONAL) REMINGTON 700 TYPE
The bolt release is similar to the standard Remington 700
lever, but is made of .050- 4130 Aircraft Grade Sheet Steel
It operates on two of the through pins in elongated slots
and is returned by the factory provided spring/lever.

LIMITED LIABILITY AND WARRANTY
Jewell Triggers guarantees that its products are free
from defects in materials and workmanship for a period of
one (1) year from date of purchase. In the event of any
defect in materials or workmanship, Jewell Triggers' sole
liability therefore shall be the repair or replacement of
any such products that are defective in materials or
workmanship, at the option of Jewell Triggers. The repair or
replacement of any such products(s) shall be Jewell
Triggers' sole responsibility. This warranty specifically
excludes any and all consequential or accidental damages. No
other warranties or liability whatsoever are either
expressed or implied. If any such warranties shall be
imposed by law notwithstanding this provision, then such
warranties shall be the responsibility of Jewell Triggers'
immediate buyer. By way of example, and not limitation,
there shall be no warranties of merchantability, use of
trade, or fitness for a particular purpose.
JEWELL TRIGGERS. INC.
3620 Hwy. 123
San Marcos, TX 78666
(512)353-2999
(512) 392-0543 Fax |