Understanding RL-17 Load Data: A Comprehensive Guide
The term "RL-17 load data" refers to the reloading data specifically for the .308 Winchester (7.62x51mm NATO) cartridge using RL-17 powder. This data is crucial for safe and accurate reloading, and understanding its nuances is paramount for any handloader. Incorrect data can lead to dangerous pressure spikes, potentially causing damage to your firearm or injury. This guide will explore the key aspects of RL-17 load data for .308 Winchester, emphasizing safety and accuracy.
What is RL-17 Powder?
RL-17 is a relatively slow-burning, extruded powder manufactured by Hodgdon Powder Company. Its slower burn rate makes it suitable for larger cartridges like the .308 Winchester, offering consistent performance across a range of bullet weights and velocities. Its popularity stems from its ability to deliver accurate and reliable results with a wide variety of projectiles.
Why is Accurate Load Data Essential?
Handloading offers the ability to customize ammunition to your specific needs, but it demands precision and careful attention to detail. Using inaccurate load data can result in several serious consequences:
- Over-pressure: This is the most significant risk. Excessive pressure can damage your firearm, leading to malfunctions, burst cases, or even injury.
- Under-pressure: While less dangerous than over-pressure, under-pressure loads can result in inconsistent accuracy and reduced velocity.
- Inconsistent performance: Using incorrect data can lead to inconsistent shot-to-shot variations in velocity and accuracy, impacting your overall shooting experience.
Finding Reliable RL-17 Load Data for .308 Winchester
The most crucial step is obtaining reliable load data from a reputable source. Never rely on internet forums or anecdotal evidence. Always consult the following:
- Hodgdon Powder Company's website: This is the primary source for official load data. Their website offers comprehensive data tables specifying powder charge weight, bullet weight, overall cartridge length (OAL), and expected velocity.
- Other reputable reloading manuals: Numerous reloading manuals, like those published by Lyman, Sierra, Hornady, and Lee Precision, provide extensively tested load data. Always choose a manual that is up-to-date and specifically covers the .308 Winchester cartridge and RL-17 powder.
Understanding Load Data Tables
A typical load data table will include the following information:
- Powder: The type of powder used (in this case, RL-17).
- Bullet Weight: The weight of the bullet in grains.
- Powder Charge: The weight of the powder charge in grains.
- Primer: The type of primer recommended (small rifle primers are typically used in .308 Winchester).
- COL (Cartridge Overall Length): The total length of the loaded cartridge.
- Velocity (fps): The expected muzzle velocity in feet per second.
- Pressure (psi): The expected chamber pressure in pounds per square inch.
Safety Precautions When Reloading
Reloading ammunition requires strict adherence to safety protocols.
- Always wear safety glasses and hearing protection: This is crucial to prevent eye injuries and hearing damage.
- Work in a well-ventilated area: Gunpowder fumes can be harmful.
- Follow the instructions carefully: Pay close attention to all instructions provided in the reloading manual and powder manufacturer's data.
- Never exceed the maximum recommended load: This is paramount to prevent over-pressure and potential damage.
- Start at the minimum charge weight: Gradually work your way up, checking for pressure signs after each increment.
Conclusion
Successfully reloading .308 Winchester ammunition using RL-17 powder requires careful planning, meticulous attention to detail, and a deep understanding of safety protocols. Prioritizing the acquisition of reliable load data from trusted sources is the cornerstone of safe and accurate reloading. Remember, safety should always be your top priority. Consult multiple sources and always start with minimum loads before working up. Happy and safe reloading!
