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When you mount the barreled action into your stock, all you will
need is a 5/32 long handle Allen wrench. |
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| 1. |
Begin by
laying the barreled action into the clamping pocket so that the
trigger assembly is centered in the relief cut provided for it. |
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| 2. |
The rear tang
of the action should be close to but not in contact with the back of
the action pocket of the stock. |
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| 3. |
Put a dab of
grease on each of the 8 clamping bolts provided. This will keep them
from binding in the steel screw inserts. |
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| 4. |
Put the
clamping cap in place and screw down each of the screws until they
are just snug. Adjust as necessary to provide equal gap on either
side of the clamping cap. (This is not critical). |
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| 5. |
Torque the
screws to about 40-50 inch pounds, in the same manner as the
head-bolts on a flat-head V8, in other words, outside in and across.
You don't need a torque wrench. The amount of force you can apply to
the Allen wrench without hurting your hand is about right. |
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| 6. |
Don't worry
about stripping the threads of the steel inserts in the stock,
however, don't get too heavy handed either. These are fairly brittle
carbon steel bolts and they will fracture if you go too far. |
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| 7. |
If you do it
right, there is more than enough tension on the barrel to prevent
even the slightest slippage of the barrel. Therefore, do not add any
sort of adhesive like Lok-Tite to the mating surfaces . |
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I
have been noodling around with some sort of "adjustment process" for
the stock that would begin with the shooter's understanding that his
or her head position cannot be variable in the for/aft direction.
This is due to the fact that the position of the cheek-piece is
essentially fixed. Therefore, all other adjustments, such as LOP,
forearm stop location, and rear sight placement, have to be made
such that the shooter's cheek is still in the center of the
cheek-piece. I should start by defining the several parts associated
with the butt assembly: |
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1. |
Pitch
Swivel.
The semi-circular piece bolted into the side of the butt-stem of the
stock. |
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2. |
Cast-off
Swivel.
This piece is clamped to the mandrel on the back of the pitch swivel
and permits the back end of the stock to be adjusted into or away
from the shooters cheek. |
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3. |
Butt Plate
Extension Rod.
This piece rides in the clamping pocket in the other end of the
cast-off swivel. Once you have determined the correct extension of
the rod (length of pull or LOP), and the cant angle (roll of the
stock) that you need, lock down the index ring. (More on this later). |
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4. |
Recoil Pad
Swivel.
The recoil pad has a rod mounted to its rear surface. This in turn
rides in the clamp at the rear of the extension rod. Accordingly,
the shoulder angle (yaw) of the recoil pad can be adjusted. |
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Get someone to help you with making adjustments so that you don't
have to constantly get out of position to do it yourself. |
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1. |
Start by
removing the barreled action in order to reduce the weight you are
holding up. |
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2. |
Set the butt
assembly pitch swivel to neutral, in other words, in line with the
body of the stock. Lock it down. I'll come back to it later. |
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3. |
Set the
butt-plate extension and butt-plate height for correct LOP and to
center the recoil pad for best recoil absorption. |
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4. |
Set the "yaw"
angle of the recoil pad to match the bone structure of your shoulder. |
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5. |
Set the "roll"
angle of the butt-plate to accommodate any cant tendency. |
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6. |
Set the height
and cast-off of the cheek-piece for a comfortable head position. |
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7. |
Set the forend
stop such that the stock will be parallel with the ground with
correct sling tension. |
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8. |
Re-mount the
barreled action. |
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9. |
Adjust the
butt assembly "cast-off" swivel to get your eye centered in the rear
sight. Re-adjust the cheek-piece as necessary. Be sure the windage
of the sight is in the center of its range. |
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10. |
Set the rear
sight fore/aft position for correct eye relief. |
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11. |
Now go back
and fine tune everything for a perfect NPA. |
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12. |
Shoot the
rifle. |
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13. |
Repeat steps
11 and 12 until you are satisfied. |
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Here are some additional notes: |
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1. |
You may not want or need to make
any adjustment of the pitch swivel away from neutral. I have never
found it necessary, therefore, I can't advise you on it. However, go
ahead and experiment. You might discover something. |
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2. |
I included the
index ring for the extension rod because some shooters add a bloop
tube to the muzzle of the barrel, making the rifle longer than any
gun case I know of. With the index ring set, you can easily remove
the butt-plate assembly by just loosening the two clamp screws. If
the rifle still doesn't fit, then all I can tell you is to shorten
the bloop tube, or build your own custom gun case. |
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3. |
I know,
illustrations would sure help here. I will get around to them
eventually. |
