8 reasons why brass is used in ammunition


Brass is the most common and popular metal used in ammunition casings. It is an alloy of zin and copper mixed in various proportions to make it electrically and chemically fit for the needs of different applications.

It has been in use for the last two centuries. It is certainly still in use with too many refinements for the attainment of accuracy and reloading. In the last 70 years, many improvements have taken place to obtain the present version of brass bullet casings.

For instance, the .300 blackout rifle brass casings are known for their ground-breaking features like ease of reloading, robust durability and resistance to corrosion. Brass metals help in working with the bullet to achieve coordination ballistically.

It has excellent flexibility and strength to expand when under pressure without losing accuracy and power. In the present firearm industry, brass metal is the most reputed casing.

Here are more reasons why brass is used in ammunition.

Brass is highly reliable

Brass metal fulfills all the requirements of a suitable casing. It can never get stuck in the firearm like the other metals. It passed the test of reliability in hundred rounds of the shooting.

Brass is soft

Rapid expansion and quick shrink after firing are possible as brass metals are soft. Whenever firing occurs, the cartridge’s neck part expands to seal the chamber and stop the gas from flowing in the backward direction. Thus, brass helps reduce the firearm’s malfunction and keeps it much cleaner compared to other metal casings.

Brass does not cause damage

Brass metal is popular as it does not cause any damage to the firearm. It is very smooth that it hardly scratches the parts of the gun. This way, it maintains the beauty and function of the weapon. Also, it is unlikely to cause a spark when it rubs the other metals.

Brass is reusable 

It is cost-effective as it is reusable. Every user prefers it as it can be reloaded. Many users always retrieve and reuse their brass casings to save money. Also, several gun shops and other gun owners are always interested to buy used brass shells.

Brass is corrosion resistant

Brass is corrosion resistant. It is the metal used in firearms and most other common types of devices. It is a very important need for a firearm as it can be needed even amidst water during hunt or defence.

Brass is temperature resistant

Brass is a temperature-resistant metal that gives brass its heat resistance. It is the exact reason why from the 1700s to the early 1900s, it was used for gun barrels and other components that served a multitude of uses.

Brass has anti-bacterial properties

Ions can be produced in the molecules of brass. They are active when it comes to killing a specific protein of a single-celled organism. As firearms can be taken deep into the forest or under the water; they are vulnerable to invisible microorganisms that may affect their performance and this property greatly helps.

Favorable physical and thermal properties

Brass has favorable physical properties with 954 degrees melting point (liquidus) and 916 degrees melting point (solidus). Its mechanical properties with a tensile strength of 303 -896 MPa, yield strength of 76-448 MPa and elongation of 665 make it an ideal choice for .300 blackout rifle brass casing bullets.

Thus, these are the main reasons why brass is used in ammunition. Also, ammunition is one of the thousand applications of brass.