The 5.7×28 Ammo ( 5.7×28 round) is a small caliber, bottlenecked centerfire cartridge designed and manufactured by FN Herstal in Belgium. It was originally developed for the FN P90 personal defense weapon and the FN Five-seven pistol, but has since been adopted by several other firearms manufacturers for use in their own firearms.

The cartridge measures 5.7mm in diameter and 28mm in length, hence the name 5.7×28 round. It is a relatively high velocity cartridge, with typical velocities ranging from 1,800 to 2,300 feet per second (550 to 700 meters per second) depending on the load and barrel length. The cartridge typically uses a 40-grain bullet, although other bullet weights are available.

The 40-grain bullet is a relatively light projectile, which is designed to achieve high velocities and flat trajectories. This makes it ideal for use in firearms designed for personal defense, as it allows for rapid target acquisition and accurate shooting at close to medium ranges.

FN 5.7 x28 ammo 40-Grain V-Max Cartridges 500 ROUNDS have the following benefits

• 1,750 fps
• Hollow points 
• Quantity : 500-rounds 
• 5.7 x 28mm caliber
• Great for target shooting and small game hunting
• 40 grainS

Despite its small size, the 5.7×28 round is capable of producing significant energy and terminal ballistics. The lightweight bullet is designed to fragment upon impact, creating multiple wound channels and increasing the effectiveness of the cartridge. This makes it a popular choice for law enforcement and military applications, as well as for civilian self-defense.

In terms of ballistics, the 5.7×28 Ammo for sale has a relatively flat trajectory and low recoil, making it easy to shoot accurately. However, the cartridge’s small size and high velocity can also make it prone to overpenetration, which is a concern in situations where bystanders may be present.

Overall, the 5.7×28 Ammo for sale is a unique and versatile cartridge that offers high velocity, flat trajectories, and effective terminal ballistics in a small package. Its popularity in personal defense and law enforcement applications is a testament to its effectiveness and reliability.