5.7X28 Ammo

Here’s a detailed category overview and specifications for 5.7x28mm ammunition:

1. Overview

• The 5.7x28mm cartridge was developed by FN Herstal in the late 1980s for use in their P90 personal defense weapon and the Five-seven pistol. It was designed to provide a high-velocity round with low recoil, suitable for both military and law enforcement applications.

2. Specifications

• Caliber: 5.7mm
• Case Length: 28mm
• Overall Length: Approximately 40.0mm
• Bullet Diameter: 5.7mm (0.224 inches)
• Neck Diameter: 6.1mm
• Base Diameter: 7.5mm
• Rim Diameter: 6.9mm
• Rim Thickness: 1.0mm
• Typical Bullet Weights:
  • 40 grains (2.59 grams) for standard FMJ (Full Metal Jacket)
  • 30-40 grains for various specialty loads
• Velocity: Approximately 1,600–2,300 feet per second (490–700 meters per second), depending on the bullet type and load.
• Energy: Typically ranges from 350 to 600 foot-pounds at the muzzle, depending on the specific round.

3. Performance Characteristics

• Penetration: The 5.7x28mm is known for its armor-piercing capabilities, particularly with certain projectile types, making it effective against soft body armor.
• Recoil: The cartridge is designed to have low recoil, allowing for quick follow-up shots and easier handling, especially in rapid-fire scenarios.
• Accuracy: The high velocity and lightweight projectiles contribute to flat trajectories and high accuracy at extended ranges.

4. Applications

• Military Use: Adopted by various military forces, the 5.7x28mm is often used in submachine guns and personal defense weapons.
• Law Enforcement: Many law enforcement agencies use firearms chambered in this caliber for their lightweight and effective performance in close-quarters situations.
• Sport Shooting: The cartridge is also popular among civilian shooters for target practice and recreational shooting.

5. Types of Loads

• Full Metal Jacket (FMJ): Designed for target shooting and training; provides good penetration.
• Hollow Point (HP): Designed for self-defense, expanding on impact to create larger wound channels.
• Armor-Piercing (AP): Contains a hardened core for penetrating body armor.
• Specialty Rounds: Includes frangible and subsonic options for specific applications.

6. Firearms Compatibility

• Common firearms chambered for 5.7x28mm include:
  • FN P90: A compact submachine gun with a unique bullpup design.
  • FN Five-seven: A semi-automatic pistol designed specifically for the 5.7mm cartridge.
  • Other Variants: Various custom and aftermarket firearms designed for this cartridge.

This overview provides a comprehensive look at the 5.7x28mm ammunition, its specifications, and its uses across different fields. If you need further details on a specific aspect, feel free to ask!