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Winchester USA WHITE BOX 5.56mm 55 Grain Full Metal Jacket Brass
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
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SKU: WM193500-020892228320
Overview
This 5.56mm NATO ammunition is built around a 55-grain full metal jacket bullet and brass cartridge case, making it a straightforward option for shooters who want a familiar, practical load. With a listed muzzle velocity of 3180 feet per second and muzzle energy of 1235 ft-lbs, it is positioned for use where consistent performance and dependable feeding are priorities. The FMJ design makes it more suited to range use and general shooting applications than to specialized hunting bullet designs, so it fits best in a utility role rather than a dedicated game load. Winchester’s USA White Box line offers a no-frills approach for hunters and outdoor shooters who want a standard cartridge format from a recognized brand.
Why Hunters Choose the Winchester
5.56mm Nato
A 55 grain full metal
Brass Cartridge
Case is listed for durability
Muzzle Velocity
Is specified at 3180 feet
Muzzle Energy
Is listed at 1235 ft-lbs
Suitable Hunting
Applications according to the product
Key Features
- 5.56mm NATO cartridge with a 55 grain full metal jacket bullet.
- Brass cartridge case for durability and easier extraction.
- Listed muzzle velocity of 3180 feet per second.
- Muzzle energy rated at 1235 ft-lbs.
- Winchester USA White Box ammunition line.
- Suitable for hunting applications.
Best Used For
- Hunters needing 5.56mm NATO FMJ ammunition for general hunting applications
- Shooters who want 55-grain brass-cased cartridges for range practice and familiarization
- Newer shooters looking for a straightforward, standard 5.56mm load
- Seasoned shooters seeking Winchester USA White Box ammunition in a common training format
Specifications
| Bullet Type | Full Metal Jacket (FMJ) |
|---|---|
| Bullet Weight | 55 grain |
| Caliber | 5.56mm NATO |
| Cartridge Case Material | Brass |
| Muzzle Energy | 1235 ft-lbs |
| Muzzle Velocity | 3180 ft/s |
Pros
- 5.56mm NATO cartridge with a 55 grain full metal jacket bullet
- Brass cartridge case is listed for durability and ease of extraction
- Muzzle velocity is specified at 3180 feet per second
- Muzzle energy is listed at 1235 ft-lbs
- Suitable for hunting applications according to the product description
Considerations & Trade-offs
- Full metal jacket bullets are typically chosen for general shooting use, so this load may not match hunters looking for a dedicated hunting bullet design.
- The 55 grain bullet weight and 5.56mm NATO chambering make this a specific-purpose cartridge, so it should be matched carefully to the firearm and intended use.
- The listed performance figures are given at the muzzle; real-world results will vary with rifle, barrel length, and conditions.
- Brass cases are a practical choice for extraction, but they do not eliminate the need to verify compatibility with your rifle and ammunition requirements.
Suggested Comparisons
- 5.56mm NATO ammunition
- Full metal jacket rifle ammunition
- 55 grain centerfire cartridges
- Brass-cased ammunition
Suggested Accessories
- Ammunition storage box
- Cleaning kit
- Hearing protection
- Range bag
Frequently Asked Questions
What caliber is this Winchester USA White Box ammunition?
It is listed as 5.56mm NATO.
What type of bullet does this cartridge use?
It uses a Full Metal Jacket (FMJ) bullet.
What is the bullet weight?
The bullet weight is 55 grain.
What is the listed muzzle velocity and energy?
The listed muzzle velocity is 3180 ft/s and the muzzle energy is 1235 ft-lbs.
What is the cartridge case material?
The cartridge case material is brass.