50 BMG Primer
CCI 50 BMG Primers #35 Box of 500 (5 Trays of 100)

CCI 50 BMG Primers #35 Box of 500 (5 Trays of 100)


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The Ultimate Guide to 50 BMG Primer: Ensuring Reliable Ignition for Your Ammunition

When it comes to reloading ammunition, especially for high-caliber firearms like the 50 BMG (Browning Machine Gun), choosing the right primer is crucial. The primer is the heart of a cartridge’s ignition system, and selecting the appropriate one can significantly impact your shooting performance. In this comprehensive guide, we’ll delve into everything you need to know about 50 BMG primers, from types and key features to safety and equipment compatibility.

Why Choose 50 BMG Primer?

The 50 BMG caliber is known for its remarkable power and range, often used in military, law enforcement, and long-range shooting applications. The primer for a 50 BMG cartridge has a specific task: to ignite the powder charge consistently and reliably under various conditions. CCI 50 BMG primers, including the CCI 50 BMG Military Primers 35, are renowned for their quality and consistency, making them a top choice for reloaders.

Types of 50 BMG Primer

Primers come in different sizes and types, each designed for specific applications. The 50 BMG primers are no exception, with options such as the standard .50 BMG primer and specialized variants like the CCI 50 BMG primers 35. These are specifically crafted for loading 50 BMG cartridges, offering reliable ignition.

Key Features of Quality 50 BMG Primers

A quality 50 BMG primers should meet several specifications for optimal performance. These include being sensitive, easier to seat, and more compatible with automated loading equipment. Military specifications, such as those met by mil-spec no 35/50 cal BMG primers, ensure the most reliable and consistent ignition. The use of modern non-corrosive and non-mercuric materials in these primers is also crucial for safety and performance.

50 BMG Primed Brass

Using 50 BMG primed brass simplifies the reloading process, as it comes pre-equipped with a primer. This saves time and ensures that the brass is ready for the next steps of reloading.

The Role of Primer Pocket Reamers

A primer pocket reamer is an essential tool for reloaders, especially when preparing 50 BMG brass. It ensures that the primer pocket is clean and to the correct depth, which is critical for the primer’s performance. The 50 BMG primer pocket reamer is designed specifically for this caliber, ensuring that your brass is perfectly prepared for reloading.

Safety and Composition

Safety is paramount when handling primers and ammunition. Modern 50 BMG primers, like those from CCI, are designed with safety in mind, utilizing non-corrosive and non-mercuric materials. This not only enhances safety but also ensures the longevity and reliability of your ammunition.

Compatibility and Equipment

For those using automated loading equipment, compatibility with your primers is key. The 50 BMG primers engineered to be compatible with a variety of loading machines, offering smooth operation and efficiency. The CCI 50 BMG primers, for instance, continuously tested and improved to ensure they meet the demands of modern reloaders.

Choosing the Right Primer for Your Needs

Selecting the right primer involves considering your specific needs, equipment, and the type of ammunition you’re reloading. Factors like sensitivity, seating ease, and compatibility with your reloading setup should guide your choice.


  1. What Primer Does 50 BMG Use?
    • The 50 BMG typically uses large rifle primers designed for high-caliber cartridges, such as the CCI 50 BMG primers.
  2. What Size Primer for 50 BMG?
    • The size of the primer used for 50 BMG cartridges is specific to the caliber, often referred to as the 50 BMG primer size, designed to fit the primer pocket perfectly.
  3. Which Primer for 50 BMG?
    • Choosing a primer like the CCI 50 BMG primers, designed specifically for this caliber and meeting military specifications, is advisable for optimal performance.


Selecting the right 50 BMG primer is crucial for reliable ignition and overall performance of your ammunition. Whether you’re a competitive shooter, a hobbyist, or involved in law enforcement or military activities, understanding the nuances of 50 BMG primers will enhance your reloading process. Remember to prioritize safety, compatibility, and performance specifications when choosing your primers.

For those looking to delve deeper into the world of primers and reloading, additional resources and products can be found at Lucky Gunner and Ammoz Depot, offering a wide range of reloading supplies and expert advice.


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