BRNO BO 803

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Bases and Rails

The History of Brno

The history of the Brno company or Czechoslovak Armory (Československá zbrojovka) as it was known prior to WWI, began in the city of Brno in the Czech Republic, formerly known as Czechoslovakia. In 1918, the Brno Rifles factory was established. Before 1918, Brno Plant was an arsenal located in the Austro-Hungarian Empire. Brno started producing Mauser 98 rifles in 1920 after buying excess weapons and equipment from Mauser-Oberndorf. These Brno-produced Mausers had a 98/22 designation stamped onto the receivers marking the year of production.

In the period between WWI and WWII, Brno collaborated with the Royal Small Arms Factory in Enfield, England to develop a well-known Bren light machine gun. They produced weapons for the Czechoslovakian and German armies during World War II. After the war, the company was nationalized by the Czechoslovakian government and renamed Zbrojovka Brno. While it was under socialist control until 1989, it switched to the production of sporting weapons which quickly gained a reputation for their reliability. For some time, the company also produced light artillery and several other products such as tractors, typewriters, and early computers.

During the years they presented numerous models of weaponry such as the ZB vz. 26 light machine gun, ZB-50 heavy machine gun, the MG34, several bolt action rifles, ZKM and ZH series, ZKR 551 handgun etc.

The company was privatized in 1990, just three years before Czechoslovakia split into the Czech Republic and Slovakia. Zbrojovka Brno was acquired by Česká zbrojovka (CZ) in 2008. With the new ownership, they agreed to a longer lease, which allows the business to continue production in rented facilities. They still make high-end products for hunting and competition, including pistols, single-shot and double rifles, combination rifles, as well as over/under shotguns.

Brno BO 803 Rifle Review

The Brno BO 803 is a well-designed express rifle, suitable for a variety of shooting situations. The rifle uses a lever for opening and loading the barrels which can be chambered for a combination of rifle cartridges. The 600 mm barrel is a good length, and the automatic safety lever on the action tang is a useful feature for ensuring the gun is always used safely.

One notable feature of the Brno BO 803 is the adjustable set trigger on the rifle barrel, which allows for precise and accurate shooting. The gun is also equipped with a case extractor, making it easy to remove spent cartridges. Additionally, the two drilled and tapped holes on the top of the receiver make it easy to mount a scope, giving the user even greater accuracy and precision.

In comparison to the BO 802, the Brno BO 803 does not come with soldered, but rather free-floating barrels. However, it is possible to change the barrels between the BO 803 and BO 802 models, meaning that whenever the user decides to change the barrel combination, what they are really doing is not only changing the barrel but rather converting the rifle to another model altogether.

Overall, the Brno BO 803 is a high-quality express rifle that is well worth considering for anyone in need of a versatile and reliable weapon.

Brno 803

Figure 1: Brno BO 803, chambered for .30-06 Spr. and .30-06 Spr. (Source: https://lovactrgovina.hr/artikl.php?dy=Puska_Express_BRNO_803_10_cal_30_06_30_06&art=352&g=1&st=3&ast=21&sor=1)

Brno BO 803 Calibers

The rifle is chambered for the combination of the following calibers:

7x65 R/7x65 R
.308 Win./.308 Win.
.30-06 Spr./.30-06 Spr.
8x57 JRS/8x57 JRS
9.3x74 R/9.3x74 R

Brno BO 803 express rifle comes with two holes at the top of the receiver which are suitable for installing scope mounts.

The receiver of Brno 803

Figure 2: The receiver of Brno 803, chambered for .30-06 Spr. and .30-06 Spr. (Source: http://www.sklep-mysliwski.info/bruno-803-10-express/)

Unfortunately, we were not able to find the exact distance between the holes for this rifle. Should you happen to own Brno BO 803, we would greatly appreciate it if you could share with us the information regarding the distance. You can contact us anytime at info@optics-trade.eu. Thank you for your help.

Scope Mounts Interchangeable With Brno BO 803

Rifles That Have One-Piece Scope Mounts Interchangeable With Brno BO 803

For one-piece mounts to fit on a rifle, mounting surfaces on these rifles must match in every dimension. Rifles that have one-piece mounts interchangeable with Brno BO 803 are the following:

Brno BO 802

Rifles That Have Two-Piece Scope Mounts Interchangeable With Brno BO 803

For two-piece mounts to be interchangeable, the mounting surfaces of the rifle must match in every dimension except the action length which can vary. Rifles that have two-piece mounts interchangeable with Brno BO 803 are the following:

Brno BO 802

Best Scope Mounts for Brno BO 803

Fixed Scope Mounts for Brno BO 803

Due to the specific design of the mounting surface, there are not many mounting solutions available for Brno BO 803. However, this Kozap Slip-on one piece mount is a perfect match and should expand the mounting possibilities. It is made of high-quality steel and comes with a ten-year warranty.

Help Us Build Our Riflescope Mounts Database

If you happen to own this or any other rifle, we would appreciate it if you could help us expand our database by sending us some photos of the rifle receiver (the bare mounting surface of the rifle without the scope mounts installed). For your help, our company offers a fair return in terms of practical rewards.

Please send us an email for more information. You can contact us here: info@optics-trade.eu