|
Buttstock
and Cheekpiece Tuning
1.
Buttplate height, length, and angle
adjustments are made to secure the rifle
into the shoulder pocket as the shooter
prefers. David Tubb recommends extending
the length enough that the shooter has to
"reach" somewhat for the pistol grip. This
ultimately results in the buttpad exerting
a little extra pressure into the shoulder
which David has found helps tighten and
improve the shooting position (all
positions).
The
angle of the buttplate should be whatever
allows the plate to fit into the shoulder
pocket. For most shooters who cant the
rifle, this will be in the directions
indicated in the illustrations.
Buttplate
height has the effect of inclining the
rifle, ultimately influencing the natural
vertical position of the front sight on
the target. Lowering the buttplate
effectively drops the rifle muzzle and
vice versa.
2.
Offset or cast adjustment in the buttstock
is strictly shooter preference, but most
will find that offsetting the clamping
block so the butt assembly moves outward
(index mark on clamp to the right of
center on the scale on the receiver
extension tube) works well for the prone
position and swinging it inward works well
for sitting and offhand.
[NOTE:
The clamping block is
reversible.]
3.
After getting the basic cheekpiece height
setting as outlined, fine tuning the
height is whatever is necessary to center
the eye in the rear sight in the shooting
position. This is easily accomplished on
the TUBB 2000: thread the knurled ring up
or down. This can easily be done from the
shooting position so will be a perfect
fit.
DAVID
TUBB --
Adjust
the cheekpiece last. Cheekpiece height is
whatever is necessary to move the eye into
perfect alignment with the rear sight or
scope. This setting may change day to day
due as a result of position changes made
to accommodate different firing points,
and also when other stock adjustments are
made.
Handstop
Adjustment
The position
adjustable handstop can be moved and fixed
along any point within the slot it rides
in. Loosen the allen screw on the clamping
piece using a 5/32 allen wrench.
Additionally, by loosening the screw on
the stop piece itself, the handstop may be
rotated and locked into one of five
different positions to fit the shooter's
preference and position structure. This
handstop requires an Anschutz sling swivel
(provided). The bipod on the 2000t is also
adjustable for position fore and aft in
the rail slot to facilitate shooting off
of uneven surfaces.

DAVID
TUBB --
A
good place to start is setting the
handstop approximately the same distance
from the trigger as the buttplate is from
the trigger for the prone position. I find
that I usually have the handstop moved
farther back than that [toward the
magazine housing], but its position
also can vary from range to range. I
offset the handstop to the 3-o'clock side
when viewed from the underside of the
forend.
Recoil
Reducer Adjustment
The TUBB 2000 is
equipped with a custom elastomer Soft Shot
to counter the force of recoil. This
unique shock absorbing material is not
affected by heat or cold. The Soft Shot
can be easily tuned by locating the 5/16
allen head screw inside the open end of
the shock. Turn the screw in (clockwise)
to increase the firmness of the shock
absorber action; turn it out
(counter-clockwise) to decrease the
firmness. The harder recoiling the
cartridge or load is, the more firmness is
needed to offset it. There are two
elastomers supplied with each rifle, and
each has a different durometer (degree of
stiffness and compression).

[NOTE: If the
adjusting screw is hard to move, loosen
the clamping block to make the
adjustment.]
|