CO₂ RIFLE MODEL TAU-200

Manufakturer: TAU - BRNO. STARA 8, 602 00 BRNO. CZECH REPUBLIC Description:

Model TAU-200 is a single shot CO, rifle for youth. It is designed for practisizing shooting habits, for training and for target shooting. Its specification full complies with UIT regulations for international shooting competition with air compressed rifle at the distance of 10 m. The quick action mechanism and stability during shooting are remarkable features of this rifle. Variability and quantity of adjustable elements enabling adjustments according to individual needs, application of accurate micrometric sights and minimal power effort during shooting provide a first rate potentials for an outstanding performance.

All these features together with suitability for left hand shooters make from this rifle the product of high value.

Specifications:

Lenght ......................................  1.017 mm (without added washers)

Height   .....................................  226mm

Width .......................................  58mm

Weight ......................................  3.2kg

Calibre ......................................  4.5 mm

Ammunition   .............................  Diabolo

Stock......................................... Plastic meterial with adjustable cheek

piece and butt

Power sources:         a) Container of CO, - filled from 125g bulb

b) Capsules for CO₂ 7g/12g substitute solution /bulb/

No. of shot (1 filling): a) 120 - 150 shots b) 40 / 60 shots

Muzzle velocity:        125 - 150 m/sec. (adjustable)

Tigger pull weight.      adjustable

Charakteristics of the trigger assembly:  single or double pull trigger

adjustable

Pattern:         The diameter of circle drawn round 10 hits at the distance of 10 m is 9 mm.

Servicing of the rifle:

I. Filling of the gas container:

The gas container is to be filled by means of a transfer valve delivered with rifle, from bulb 125 g of CO₂

1) Make sure that the transfer valve is firmly screwed in.

2)     By lifting the bolt handle upward we release the bolt.

3)     The striking mechanism of the rifle is cocked by pulling the bolt backward.
This is secured the closure of a charging valve and the free escape of gas
from the barrel is prevented.

4)     Close the breech.

5)     Remove the closure of the transfer valve.

6)  Screw softly a bulb into the thread of the transfer valve till a closing of a
valve is spontaneously penetrated (it is indicated by audible hiss and violent
cooling down of the bulb).

7)     The rifle is to be held then in a vertical position with the barrel upward in
order to ensure the complete filling of the container.

8)     Unscrew the bulb from transfer valve.

9)     Close the transfer valve again by the closure.

10) By release of cocked mechanism make sure that container is full and
assembly works properly.

n. Use of standard CO₂ bulb 7/12 grams

1) Activate the trigger of an unloaded gun to make sure that arm is not under
pressure.

2)    If yes, blow off the gas by pushing warning device until charging valve is
opened.

3)    Unscrew tranfer valve.

4)    See para. 4, ad. 2 to 4.

5)    Insert bulb into container with closure positioned out of container.

6)    Screw on closure cap with TAU needle (does not belong to accessories of
rifle) until this needle punctures the bulb.

7)    Increased resitance eventually weak hiss is a proof that the puncture was
completed. For fastening the the corresponding nut it is advaqntageous to
use nut wrench which belongs to accessories. Activate trigger of unloaded
gun to make sure that the propellant gas has been released from bulb.
Periodical smearing of loading cone of a vessel and inspection of "O" ring
on the closure cap is recommended and it should be done when changing
the bulb. "O" ring may be somewhat swollen if exposed to the effect of
carbon dioxid for some time. This swelling is temporary and disappears
within the period of 1 to 3 hours. In order to prevent damage to a sealing
always alternate closure cap when changing bulb.

III.  Loading of the rifle

1)    Lift bolt handle upward and release the bolt.

2)    Pull bolt backward cock the striking assembly of rifle.

3)    Insert a pellet into groove of loading adaptor.

Push pellet into grooves of the barrel by reverse movement of the breech and close the chamber.

Rifle is ready for shooting now.

IV.  Training of shooter's habits (with empty gun)

1) Lift the bolt handle upward and cock striking assembly by backward
movement of the bolt.

2)    Turn the bolt handle downward in the moment when the bolt is in the
utmost rear position. The handle should fit the rear recess in the jacket of
the barrel.

3)    Activate the trigger.

4)    Any further cocing should be made only by pulling of the bolt handle
backward without its lifting up.

Shooting with an empty gun serves as a training of shooter's habits. Complete process of the shot is realised in the striking assembly by activating the trigger but without opening the charging valve. The shooter perceives the shot by soft vibration. Do not insert pellet into barrel. A consumption of gas does not exist.

V.  Discharge of gas pressure

Do not leave the rifle under pressure after termination of shooting for longer time in order not to strain excessively the sealing of the gun. Discharge the gas pressure by pushing warning device into the gun until the charging valve is opened and gas leaks out.

VI.  Adjustment

Sights:

It is possible to make precise correction during shooting-in of the gun by screwing micrometrical rear-sight screws. Head of a micrometrical screw for lateral adjustment is situared on the right side and on the left side there is head for vertical correction. Displacement direction of the mean impact point is marked in the upper surface of the rear sight leaf. One step means 2.4 mm at the distance of 10 m in both directions. Exchangeable front sights and rear-singht leaves of various widths belong to special accessories. These can be exchanged after loosening of the screws.  Choose the most suitable sizes and combine them according to sight dispositions and illumination.

VII.  Balancing

Detachable collar weights can be added to or removed from the barrel. These weights can be gradually set to or removed from the barrel by screws situated in their lower parts, the layout of the proper weight can be thus properly adopted. The front sight tunnel is movable on the barrel forward thus shotening the aiming line. This is, for instance, very suitable for beginners. These weights can be delivered on a special wish.

VIII. Adjustment of the trigger assembly

Construction of the asembly ensures regular and long lasting constant trigger pull weight. Complete assembly includes: reduction lever, trigger lever with reducting screws and trigget with traversable latch.

Ensclosed drawing shows trigger and striking assemblies.

1)  Adjustment of the trigger position

Adjustment of the trigger mechanism is to be done from the left side of the gun. The optimal distance from the upper side of pistol grip - i.e. distance corresponding with the lenght of a finger can be adjusted by loosening of the screw in trigger latch. If necessary, vertical and axial reset of the trigger can be made. To do that, take off the trigger latch, loose nut M5, separate stock from metallic parts and carry out requested setting of the trigger beam.

2) Adjustment of the trigger pull weight

Use screwdriver pushed through the oval hole in the trigger guard. There are three screws situated there and adjustment is to be done by the first screw nearest to the barrel. Turn it clockwise to increase, reverse to decrease. If necessary, the trigger pull weight can be increased by inserting trigger pull weight spring into trigger assembly after its dismantling. This spring can be found among accessories.

IX.  Adjustment of the trigger charakteristics

The trigger assembly is automaticlly tuned as a two-stage pull trigger. By turning the adjusting screw located before the trigger it is possible to achieve single pull trigger with either a longer smooth continuos trigger pull or a very short, almost instant trigger action. To get a basic two-stage pull trigger following adjustments should be done: cock the bolt and screw in first left screw until the

goes off. Then turn this screw one turn anticlockwise. Do The same with the central screw with following exception: unscrew it back 1-2 turns.

It is quite easy to change this two-stage pull trigger into single-stage one. When instant trigger action is required screw in the central screw for about one turn. Longer smooth continuous trigger pull can be achieved by screwing off the same adjusting screw half a turn. Generally speaking, turning adjusting screws clock\\ise means increase, reverse means decrease.

Do not screw these screws more than one quarter of a complete turn at one go and regularly control the adjustment by shooting with empty gun. It can happen that cocked rifle cannot be activated. It means that adjusting screws are too loose. On the other hand, when adjusting screws are screwed in too tinghtly then the striking mechanism cannot be cocked. The adjustment of the trigger characteristics is relatively complicated and this operation can be recommended only to technically experienced people.

X. Adjustment of muzzle velocity V₀

Muzzle velocity is present to an optimal velocity of 125- 150m/sec. by the manufacturer. Adjustment can be done by performance screw, through \\ich the warning device leads. After loosening of securing grub screw \\ich is positioned on the forehead of the above mentioned performance screw. Clockwise turning of performance screw means compressin of striking spring and increase of muzzle velocity (V₀), anticlockwise turning means decrease of V₀.

ATTENTION!   Grub screw must be always firmly tightened otherwise performance screw turns spontaneously when the gun is being loaded.

Operation:

Due to physical propertiens of liquified CO, the range of working temperatures is up to 30°C. But rifle functions properly even at temperatures -5°C up to 40°C.

Maintenance:

Due to minimal number of mobile parts and their power tension the maintenance is limited to periodic preservation - application of some fine oil.

List of Accessories (in transport box):

-  ste of exchangeable front sights

-  2 pcs of exchangeable rear sight leaves

-  spanner (puncher)

-2 + 2 pcs butt and cheek piece washers

- l pc bulb 125gCO₂

- basic spare parts, "O" rings and screws

- ste of essential tools.

Enclosed too:

- Directions for service, use and maintenance

- Original test-target at the distance of 10 m

- Guarantee ceritficate.

Bellow mentioned accessories can be supplied at a special request:

- Diopter TAU MATCH

- Diopter TAU SPORT

- Barrel collar weights

- Arm sling

- Sling cursor

- TAU spanner (puncher) - recommended at least 2 pieces.

Standard execution of TAU - 200 rifle is designed for right-hand shooters. Manufacturer can change it for left-hand shooting either from already bought standard rifle or produce it directly after receiving such an order.

Do not expose the rifle to the temperatures above 50°C (122°F) for longer time.

ADDITIONAL ACCESSORIES (WHEN REQUIRED)

On special requirement the following accessories can be delivered in addition to standard kit.

- ring 16x12 2 pcs

- ring 18x14 2 pcs

- barrel balance 200.08.019 3 pcs

- piercing pin TAU 007.08.099 2 pcs

- piercing pin TAU for 12g pressure bottle 2 pcs

- butt pad - width = 4 mm 456.07.011 2 pcs

- butt pad - \vidth = 8 mm 456.07.012 2 pcs
-beltbuckle 200.08.039 1 pc

- arm leather belt 456.08.029 1 pc

- diopter TAU-200 200.08.029 1 pc

- screw M 2.5x6 2 pcs

- 12 g CO₂ pressure bottle 1 pc

Do not expose the rifle to the temperatures above 50°C (122°F) for longer time!