Comprehensive Guide to IMR 4064 Load Data

For precision shooters and reloading enthusiasts, IMR 4064 load data is essential for achieving optimal performance in a wide range of rifle calibers. This detailed guide will provide all the necessary information on how to use IMR 4064 effectively, ensuring you can maximize both accuracy and safety in your shooting practices.

What is IMR 4064?

Overview and Characteristics

IMR 4064 is an extruded gunpowder well-known for its versatility across various medium and large calibers. Renowned for its consistent performance, IMR 4064 is the preferred choice for many reloaders due to its:

  • Excellent Metering: Uniform granules that provide consistent charge weights and pressures.
  • Wide Range of Applications: Ideal for popular calibers such as .308 Winchester, 30-06 Springfield, and 6.5 Creedmoor.
  • Temperature Stability: Performs reliably under different environmental conditions.

IMR 4064 Load Data Specifications

Caliber-Specific Recommendations

When using IMR 4064, it is crucial to tailor your approach based on the specific caliber and bullet weight. This section covers detailed load data for several popular calibers:

  • .308 Winchester: Ideal starting charge – 42.0 grains, Max charge – 44.0 grains.
  • 30-06 Springfield: Ideal starting charge – 48.0 grains, Max charge – 51.0 grains.
  • 6.5 Creedmoor: Ideal starting charge – 38.0 grains, Max charge – 40.0 grains.

Each load should be developed gradually while closely monitoring for pressure signs to ensure safety.

Best Practices for Using IMR 4064

Safe and Effective Reloading

To achieve the best results with IMR 4064 load data, follow these essential practices:

  • Weigh Each Load: Use a high-quality digital scale to measure powder charges precisely.
  • Monitor Pressure Signs: Watch for signs of excessive pressure such as cratered primers or swollen case heads.
  • Record Keeping: Maintain detailed logs of your reloads to track performance and make adjustments.

Frequently Asked Questions About IMR 4064 Load Data

What makes IMR 4064 ideal for reloading?

IMR 4064‘s extruded powder form allows for better metering and more consistent loads compared to other powders, making it a top choice for precision reloading.

Can IMR 4064 be used for both target shooting and hunting?

IMR 4064 is extremely versatile and suitable for both hunting and competitive shooting applications, providing excellent ballistic performance in both scenarios.

How does IMR 4064 compare to other similar powders?

IMR 4064 often compares favorably to other powders like Hodgdon H4895 or Varget, offering a good balance between velocity and pressure, which is critical for long-range accuracy.


IMR 4064 Load Data is an invaluable resource for anyone looking to improve their reloading techniques and outcomes. With its flexibility across a wide array of calibers and its reputation for consistent performance, IMR 4064 can help you achieve the precision and safety you need.

Whether you are a novice reloader or an experienced marksman, understanding how to optimize your use of IMR 4064 will significantly enhance your shooting experience.