ceska zbrojovka CZ 803 Instruction Manual

11

SAFETY INSTRUCTIONS 12
DESCRIPTION AND TERMINOLOGY 13

Complete Case 13
Complete Forend 13
Complete Barrel 14
Interchangeable Barrels 14

OPERATING INSTRUCTIONS 15

Several Principles of Firing 15
Gun Loading 15
The Safety and its Operation 16
Left-handed Modification 16

MAINTENANCE INSTRUCTIONS 17

Gun Disassembly 17
Gun Assembly 17

Cleaning the Gun 17
CONDITIONS OF GUARANTEE 18
TECHNICAL SPECIFICATIONS 19
LIST OF ILLUSTRATIONS 20

CONTENTS

12

SAFETY INSTRUCTIONS

1. Always point the gun muzzle in a safe direction even if the gun is not loaded or
loaded and locked. Pointing the gun in any other direction is inexcusable.

2. When you handle or store the gun, always make sure that the gun is locked and the
chambers are empty.

3. Do not transport a loaded gun.

4. Check the cleanliness of the barrel prior to loading.

5. Do not load the gun unless your are at the firing stand or hunting has started.

6. Lay your finger on the trigger at the moment you are ready to fire, not earlier.

7. Make sure of your target and surrounding, do not fire into water and at low flying
targets.

8. Always unload the shotgun when climbing or crossing obstacles.

9. If the gun misfires, wait for 30 seconds whilst pointing the barrels in a safe direction.
Open the gun carefully and pull the cartridges out.

10. When handling the gun refrain from drinking and drugs when firing.

11. Do not modify any parts of the gun yourself.

12. When you unpack the gun from the transport box, remove the preservation agents.

13. Use the double set trigger just before you fire.

13

DESCRIPTION AND TERMINOLOGY

The Over and under shotgun BRNO 801 over and under gun has been designed for
hunting shooting using 12 bore cartridges, corresponding to the cartridge chambers and
cartridges designed for the barrel's bore and meeting CIP regulations. The bores and length
of shot chamber are engraved on the side of barrel sleeve. For shooting it is possible to use
the 12-bore cartridges with various shot loading, including steel pellets according to proving
mark. For single firing, the manufacturer's restriction is valid for cartridges designed for
smooth bores and choke bores Ø 17,6 mm.

The Shotgun/Rifle Combinations of BRNO 802 over and under gun has been designed
for hunting shooting using 12 bore cartridges, corresponding to the cartridge chamber and
cartridges designed for the barrel's bore and meeting CIP regulations. The bores and length
of shot chamber are engraved on the side of barrel sleeve. For shooting it is possible to use
the 12-bore cartridges with various shot loading, including steel pellets acording to proving
mark. For single firing, the manufacturer's restriction is valid for cartridges designed for
smooth bores and choke bores Ø 17,6 mm.

Superposed rifle BRNO 803 is designed for game shooting with ball cartridges
according to the barrel bore. The barrel bores are specified on the side of the barrel collar,
the cartridges used must comply with the CIP provisions.

The double-barrelled gun consists of these main groups:

- Complete case

- Complete forend

- Complete barrel

Complete Case

this consists of the butt stock and the receiver, connected by a bolt. The breech, firing
and trigger mechanisms are laid in the receiver. The breech mechanism consists of barrel
pins, and a bolt handle-operated locking latch, and when open, the locking latch is locked
with a breech catch. In the closed position, the barrel is matched together with the receiver
to the butt plate and side protrusions. This complete set-up is locked by a locking latch. The
firing and trigger mechanisms consist of cocking levers, hammers, trigger levers, release
lug. Hammers are placed on a pin. Cocking follows the barrel movement when breaking the
gun. The safety catch is situated on the crown of the receiver, works in an automatic,
derived from bolt handle movement, and locks the trigger. Control of the crown bolt handle
and the butt stock itself are modified for left handed shooters.

Complete Forend

this consists of the assembled bar and forend. The barrel band supports the barrel pair
and when breaking the gun, it pushes the cocking levers of the striking mechanism.

14

Complete Barrel

Model BO 801

the barrel pair consists of two independent barrels soldered into a casing assembly,
soldered with a central bar in the front part. The forend hook is soldered to the lower barrel.
The aiming rib is soldered to the upper barrel. The casing assembly side walls houses
ejectors mechanism. The ejectors function closely relates to the cocking levers position.

Model BO 802

the barrel pair consists of two independent barrels soldered into a casing assembly,
soldered with a central bar in the front part. The forend hook is soldered to the lower barrel.
The rear sight is on the upper bar, the front sight is situated on an independent base.

Model BO 803

the barrel set consists of two self-supporting barrels soldered into the collar,
interconnected by adjustable span pieces for ensuring their grouping. The forend hook is
soldered to the bottom barrel. The rear sight is mounted on the rib, the front sight is located
on the separate base.

Interchangeable Barrels

optionally, the BO 802 gun can be equipped with additional interchangeable shotgun
barrels either in the delivery or upon request. Interchangeable rifle barrels can be delivered
as well. Inter changeable barrels must be mounted by an authorized company and
presented for work piece certification.

Parts of the gun system are made of construction steel and are heat-treated. The
surface is protected by alkaline oxidation. The gunstock and front stock are made of walnut
and are varnished. Gripping parts are equipped with dovetailing.