Finding reliable and accurate load data for your reloading projects is paramount for safety and optimal performance. This guide focuses specifically on data for reloading bullets using the popular Remington Model 700 (R700) platform, commonly referred to as RMR (Remington Model 700) load data. We'll explore crucial considerations, safety protocols, and resources to help you confidently develop your own RMR bullet loads. Disclaimer: Always prioritize safety and consult multiple sources before attempting any reloading project. The information provided here is for educational purposes only and does not constitute professional reloading advice.
Understanding the Importance of Accurate Load Data
RMR load data is not a one-size-fits-all solution. Factors such as bullet weight, type, powder type and brand, case capacity, and rifle specifications significantly impact optimal load development. Using inaccurate or inappropriate data can lead to dangerous pressure spikes, resulting in potential damage to your firearm, injury, or even death.
Key Factors Affecting RMR Load Data:
- Bullet Weight and Type: Heavier bullets generally require larger powder charges, while bullet design (e.g., boat-tail, spitzer) impacts ballistic performance and pressure.
- Powder Type and Brand: Different powders burn at varying rates, impacting pressure curves. Even within the same powder type, different manufacturers might have slight variations.
- Case Capacity: Variations in brass case dimensions can affect the amount of powder the case can safely hold.
- Rifle Specifications: The chamber dimensions and barrel length of your specific R700 influence pressure levels. A tighter chamber might create higher pressures with the same load.
- Environmental Factors: Extreme temperatures can also impact powder burn rates and resulting pressures.
Locating Reliable RMR Load Data Sources
Finding dependable information is critical. Avoid using data from unreliable sources or forums, as this can be incredibly dangerous.
Reputable Sources for Reloading Data:
- Manufacturer's Manuals: Always start with the owner's manual for your specific rifle and ammunition components. This will provide basic guidelines.
- Powder Manufacturers' Load Data: Companies like Hodgdon, Alliant, IMR, and Accurate Arms publish extensive load data manuals, often available online and in print. These are invaluable resources.
- Reloading Manuals: Several well-respected reloading manuals, like those published by Lyman, Sierra, Hornady, and Lee Precision, offer comprehensive load data, often tested and verified by experts.
- Independent Reloading Experts: Consult with experienced and reputable reloaders for guidance, but always verify their information independently.
Safety Precautions for Reloading RMR Ammunition
Reloading requires meticulous attention to detail and safety procedures. Failure to adhere to these practices can have severe consequences.
Essential Safety Guidelines:
- Always wear safety glasses and hearing protection.
- Work in a clean, well-ventilated area.
- Follow all instructions carefully.
- Never exceed maximum recommended load data. Start at the lower end of the recommended range and work your way up gradually, carefully noting pressure signs.
- Inspect your ammunition for any defects before loading or firing.
- Clean your firearm regularly.
- Use a reloading scale to precisely measure powder charges.
- Never mix and match components from different manufacturers without consulting reliable load data specifically for that combination.
Developing Your Own RMR Load Data (Advanced)
Developing your own load data is an advanced practice, requiring significant experience and a thorough understanding of reloading principles. This process involves starting with a proven load from a reputable source, then making minor adjustments and carefully monitoring pressure signs, often using a pressure gauge. This is a detailed process beyond the scope of this introductory guide and should only be undertaken by experienced reloaders.
Conclusion
Safe and accurate reloading is a rewarding skill that requires dedication and a deep understanding of the process. By prioritizing safety, researching reputable data sources, and following meticulous procedures, you can successfully develop safe and effective RMR bullet loads for your specific firearm and intended application. Remember, safety should always be your top priority. Always consult multiple sources and be aware of the potential risks involved.
