Hornady 308 Load Data: A Comprehensive Guide
Hornady provides extensive 308 Winchester reloading data, including a downloadable PDF guide. This resource details various bullet weights, powders, and load recipes for optimal performance.
Understanding 308 Winchester Cartridge Basics
The .308 Winchester, a globally recognized centerfire cartridge, is renowned for its accuracy, moderate recoil, and versatility. Originally adopted by the U.S. military in 1951, it quickly gained popularity among civilian shooters and hunters. Hornady’s load data resources, often available as a PDF, build upon this foundation by offering precise reloading information.
Understanding the cartridge’s dimensions – case length, neck diameter, and overall length – is crucial for safe and accurate reloading. The .308 Winchester’s consistent performance stems from its well-defined specifications. Hornady emphasizes adhering to these specifications when utilizing their load data, ensuring optimal results and preventing potential issues. Accessing a Hornady PDF guide provides detailed diagrams and measurements for reference.
Hornady’s Role in 308 Reloading Data
Hornady Manufacturing Company is a leading provider of comprehensive and meticulously researched 308 Winchester reloading data. Their commitment to accuracy and safety is evident in resources like the Hornady Handbook of Cartridge Reloading, frequently available as a downloadable PDF. This PDF contains extensive load recipes, covering a wide range of bullet weights and powder combinations.
Hornady’s data isn’t simply a compilation; it’s the result of rigorous testing and analysis. They continually update their information to reflect advancements in bullet and powder technology. Utilizing Hornady’s PDF guides ensures reloaders have access to current, reliable data, promoting both precision and responsible reloading practices. They also offer online resources complementing the handbook.
Importance of Accurate Load Data
Accurate 308 Winchester load data, such as that found in the Hornady PDF guides, is paramount for safe and effective reloading. Deviations from established data can lead to dangerously high pressures, potentially damaging firearms or causing injury. Precise data ensures consistent velocities and optimal accuracy, crucial for hunting or target shooting.
Using incorrect load data can also negatively impact bullet trajectory and point of impact. Hornady’s detailed PDF resources provide specific measurements for cartridge overall length (COL) and powder charges, minimizing these risks. Following recommended starting loads and carefully monitoring for pressure signs are vital. Reliable data, like Hornady’s, is not just convenient; it’s essential for responsible gun ownership.
Sources of Hornady 308 Load Data
Hornady offers several avenues for accessing comprehensive 308 Winchester load data. The primary source is the Hornady Handbook of Cartridge Reloading, available in various editions, with the latest providing the most up-to-date information. A convenient option is the downloadable PDF version, offering quick access to extensive load recipes.
Furthermore, the official Hornady website hosts a wealth of online load data, searchable by bullet weight, powder type, and other parameters. While third-party compilations exist, relying on Hornady’s direct publications – including the PDF – ensures accuracy and safety. Always prioritize official Hornady resources for reliable reloading information.
Hornady Handbook of Cartridge Reloading (Editions)
The Hornady Handbook of Cartridge Reloading is the cornerstone for accurate 308 Winchester load data. Regularly updated editions provide the most current information, reflecting advancements in bullet and powder technology. Earlier editions may contain data superseded by newer findings, so referencing the latest version is crucial.
Many reloaders also utilize the downloadable PDF versions of these handbooks for convenient access. However, be aware of potential misprints, as highlighted with the 6.5 PRC data in the 12th Edition. Always cross-reference with the Hornady website and prioritize safety when using any load data, including those found in PDF format.
Online Load Data Resources (Hornady Website)
Hornady’s official website serves as a vital, readily accessible resource for 308 Winchester load data. It complements the printed handbooks and PDF downloads, often providing the most up-to-date information and corrections. The website boasts an extensive database covering 593 bullets from 43 manufacturers, totaling over 37,359 load recipes.
Users can easily search and filter data based on bullet weight, powder type, and other parameters. While PDF versions offer portability, the website allows for dynamic updates and errata notifications. Always verify data against multiple sources, including the official Hornady website, to ensure accuracy and safe reloading practices.
Third-Party Reloading Data Compilations
While Hornady provides comprehensive load data, numerous third-party compilations exist, often referencing and expanding upon Hornady’s research. These resources can offer alternative load suggestions and insights, but require careful scrutiny. Always prioritize data directly from Hornady or verified sources when using a PDF or other compilation.
Sierra Bullets, for example, publishes reloading data, though they disclaim liability for results. It’s crucial to understand that third-party data may not be rigorously tested with Hornady components. Cross-reference information and always start with starting loads, meticulously monitoring for pressure signs before proceeding.
Key Components of 308 Load Data
Hornady’s 308 Winchester load data, often available as a PDF, centers around four key components. First, bullet weight and type – Hornady offers diverse options like RN, FTX, and ELD-X. Second, powder selection is critical; load data specifies appropriate powders and charge weights. Third, primer types, with Hornady recommending specific options for optimal ignition.
Finally, case selection impacts performance; Hornady data often suggests optimal case choices. Understanding these elements, detailed within the PDF, is vital for safe and accurate reloading. Charge weights, COL, and bullet BC are also crucial parameters detailed in the data.
Bullet Weight and Type (Hornady Options)
Hornady’s 308 Winchester load data PDF showcases a wide array of bullet weights and types. Common weights range from 110-grain RN for target shooting to 150, 168, and 175-grain options for hunting and longer ranges. Hornady offers several bullet designs, including traditional RN (Round Nose), FTX (Flex Tip Expanding), and ELD-X (Extremely Low Drag – Expanding).
The ELD-X bullets are particularly popular for their accuracy and terminal performance. The PDF details specific load recipes for each bullet type, considering weight, ballistic coefficient (BC), and intended application. Selecting the correct bullet is crucial for achieving desired results.
Powder Selection (Popular Choices)
Hornady’s 308 Winchester load data PDF highlights several popular powder choices. Hodgdon powders like 2495 and 2460 are frequently recommended, with Hornady suggesting charge weights between 36.8-43.3 grains for 2495 and 38-44.5 grains for 2460, depending on the bullet. IMR 4895 is another viable option, offering consistent performance.
The PDF provides detailed charts outlining specific powder charges for various bullet weights. Accurate powder selection is paramount for achieving optimal velocity, pressure, and accuracy. Always consult the PDF and start with the minimum load, carefully monitoring for pressure signs.
Primer Types (Recommended by Hornady)
Hornady’s 308 Winchester load data PDF commonly recommends CCI and Federal primers for reliable ignition. Specifically, CCI 340 and Federal 210 primers are frequently listed across various load recipes. The PDF emphasizes that primer selection can influence pressure and accuracy, so consistency is key.
While other primer types may function, adhering to Hornady’s recommendations ensures compatibility with their published data. The PDF doesn’t explicitly discourage alternatives, but stresses the importance of starting at the minimum load when deviating from suggested components and diligently monitoring for any adverse signs.
Case Selection (Optimal Case Choices)
Hornady’s 308 Winchester load data PDF highlights the importance of case selection for consistent performance and safety. Federal, Remington, and Winchester cases are generally considered optimal choices, frequently appearing in their published load recipes. The PDF suggests using cases with similar headstamp markings for uniformity.
It’s crucial to note that case capacity can subtly vary between manufacturers, potentially impacting pressure. The PDF advises carefully monitoring pressure signs when switching case brands. Reusing cases is common, but Hornady stresses proper case preparation, including full-length resizing and primer pocket cleaning, to maintain accuracy and reliability.
Analyzing Specific Hornady 308 Loads
Hornady’s 308 Winchester load data PDF provides detailed recipes for various bullet weights. Examining specific loads reveals trends in powder selection and velocity. For 150-grain bullets, IMR 4895 and Hodgdon CFE 223 are frequently recommended, achieving velocities around 2800 fps. With 168-grain projectiles, Hornady’s data favors powders like Varget, pushing bullets to approximately 2700 fps.
The PDF also showcases loads for heavier 175-grain bullets, often utilizing powders like MatchBurner 8208 XBR, aiming for velocities around 2600 fps. These examples demonstrate how Hornady balances powder choice with bullet weight to optimize accuracy and performance, offering a comprehensive starting point for reloaders.
Loads with 150-Grain Bullets
Hornady’s 308 Winchester load data PDF details several options for 150-grain bullets. Utilizing IMR 4895, starting loads range from 41.0 to 45.0 grains, achieving velocities between 2,800 and 2,950 fps. With Hodgdon CFE 223, the recommended range is 42.0 to 46.0 grains, yielding similar velocities. Hornady also suggests using their own powders, like Hornady MasterProp 33, with a range of 41.5 to 45.5 grains.
These loads are generally considered accurate and versatile for various applications. The PDF emphasizes starting at the lower end of the range and carefully monitoring for pressure signs. Careful consideration of COL (Cartridge Overall Length) is also crucial for consistent performance with these 150-grain combinations.
Loads with 168-Grain Bullets
Hornady’s 308 Winchester load data PDF showcases several effective combinations with 168-grain bullets. Using IMR 4895, starting loads typically fall between 42.0 and 46.0 grains, achieving velocities around 2,700 to 2,850 fps. Hodgdon Varget demonstrates excellent results, with a range of 43.0 to 47.0 grains, producing comparable velocities. Hornady’s own MasterProp 33 powder is also recommended, with a range of 42.5 to 46.5 grains.
These loads are favored for longer-range shooting and offer enhanced ballistic coefficients. The PDF stresses the importance of a proper COL and meticulous pressure monitoring. Starting at the minimum load and gradually increasing is vital for safety and accuracy when utilizing these 168-grain bullet configurations.
Loads with 175-Grain Bullets
Hornady’s 308 Winchester load data PDF details several options for 175-grain bullets, ideal for precision shooting. Utilizing IMR 4895, starting loads range from 41.0 to 45.0 grains, achieving velocities around 2,600 to 2,750 fps. Hodgdon Varget shows promise, with a range of 42.0 to 46.0 grains, delivering similar performance. Hornady’s MasterProp 33 is also a viable choice, with a range of 41.5 to 45.5 grains.
These heavier bullets excel in long-range applications, offering superior wind resistance. The PDF emphasizes careful attention to COL and consistent powder charges. Always begin with the minimum load and incrementally increase, closely observing for pressure signs, to ensure safe and accurate results with these 175-grain configurations.
Safety Precautions When Using Load Data
Hornady’s 308 Winchester load data PDF strongly emphasizes safety. Always start with the minimum listed load and meticulously work upwards, observing for pressure signs like flattened primers or difficult extraction. Never exceed maximum load data. Consistent powder scales and accurate measurements are crucial.
Pay close attention to Cartridge Overall Length (COL), ensuring it aligns with the specified range in the PDF. Monitor for any unusual sounds or feelings during firing. A thorough understanding of reloading principles and adherence to Hornady’s guidelines are paramount. Prioritize safety above all else when utilizing this data for accurate and responsible reloading.
Starting Load Importance
Hornady’s 308 Winchester load data PDF unequivocally stresses the critical importance of utilizing starting loads. These represent the lowest powder charge weight listed for a specific bullet and powder combination. Beginning at the minimum ensures a safe pressure range, allowing you to observe how your firearm functions with the new cartridge.
Incrementally increasing the powder charge in small, measured steps—typically 0.1 to 0.3 grains—is vital. This methodical approach allows for careful monitoring of pressure signs and accuracy. Ignoring the starting load and jumping to maximum charges can lead to dangerous overpressure situations and potential firearm damage.
Pressure Signs and Monitoring
Hornady’s 308 Winchester load data PDF emphasizes diligent pressure sign monitoring during reloading. Key indicators of excessive pressure include flattened or pierced primers, difficult extraction of spent casings, and unusual case head expansion. Sticky bolt faces or craters around the firing pin are also serious warning signs.
Regularly inspecting spent casings after each shot is crucial. Look for any abnormalities that deviate from standard appearance. If any pressure signs are observed, immediately reduce the powder charge and re-evaluate. Prioritizing safety by carefully monitoring pressure ensures a positive and secure reloading experience, as detailed within the Hornady guide.
The Importance of COL (Cartridge Overall Length)
Hornady’s 308 Winchester load data PDF consistently stresses the critical role of Cartridge Overall Length (COL) in achieving accurate and safe reloading. Maintaining the specified COL ensures proper chamber fit and consistent powder burn. Deviations can lead to increased pressure or poor accuracy.
The PDF provides specific COL recommendations for each bullet and powder combination. Using a reloading block and caliper to precisely measure each cartridge is essential. Adjusting COL can fine-tune performance, but always stay within Hornady’s published limits. Incorrect COL can cause feeding issues or dangerous pressure build-up, so adherence to guidelines is paramount.
Common Reloading Powders for 308 Winchester (Hornady & Others)
Hornady’s 308 Winchester load data PDF showcases popular powder choices like Hodgdon Varget, IMR 4831, and Alliant REL15. The PDF details specific charge weights for each powder, paired with various bullet weights, offering a comprehensive starting point for reloaders.
Comparisons within the PDF often highlight Hodgdon powders as frequently used alternatives, providing cross-reference data. IMR powders are noted for their consistent performance, while Alliant offers a range of options, though data availability may vary. The PDF emphasizes starting with minimum loads and carefully working up, regardless of powder selection.
Hodgdon Powders (Comparison with Hornady Data)
Hornady’s 308 Winchester load data PDF frequently references Hodgdon powders, notably Varget and 2495, as viable alternatives. The PDF demonstrates that Hodgdon’s recommended starting and maximum loads can differ slightly from Hornady’s, necessitating careful attention.
For example, with 150-grain bullets, the PDF shows Hodgdon suggesting a broader range for 2495 (41.9-46.6 grains) compared to Hornady’s data. Reloaders should always prioritize the data specific to their chosen bullet and primer combination. The PDF stresses the importance of cross-referencing and adhering to published guidelines for safe reloading practices.
IMR Powders (Usage Considerations)
Hornady’s 308 Winchester load data PDF also acknowledges IMR powders as suitable options, though often with less extensive data compared to Hodgdon. IMR 4895, for instance, appears in some Hornady recipes, but reloaders should consult IMR’s own published data for comprehensive load tables.
The PDF implicitly suggests that IMR powders may exhibit slightly different burning characteristics, potentially influencing velocity and pressure. Therefore, starting at the lower end of the recommended range is crucial when using IMR powders. Always prioritize safety and meticulously monitor for pressure signs, as detailed within the Hornady PDF guidelines.
Alliant Powders (Load Data Availability)
The Hornady 308 Winchester load data PDF demonstrates a moderate inclusion of Alliant powders within its published recipes. Alliant RELODER 7 and Varget are occasionally featured, offering reloaders viable alternatives to Hodgdon and IMR options. However, the PDF generally presents fewer load combinations utilizing Alliant powders compared to other brands.
Reloaders seeking extensive data for Alliant powders in 308 Winchester are encouraged to consult Alliant’s own published load data resources. The Hornady PDF serves as a starting point, but comprehensive information necessitates cross-referencing with Alliant’s official guides for optimal and safe reloading practices.
Troubleshooting Reloading Issues with 308 Winchester
When encountering issues while reloading 308 Winchester using Hornady’s load data PDF, methodical troubleshooting is crucial. Accuracy problems often stem from inconsistent bullet seating or variations in powder charges; verify scale calibration and seating depth. Pressure signs, like flattened primers, necessitate immediately stopping and reducing the load.
Primer issues, such as difficult ignition, can indicate incorrect primer selection or case mouth crimping problems. Always adhere to the Hornady PDF’s starting load recommendations and meticulously monitor for anomalies. Careful observation and adherence to safe reloading practices, guided by the PDF, are paramount for resolving issues.
Accuracy Problems and Solutions
If experiencing accuracy issues with 308 Winchester reloads, referencing the Hornady load data PDF is the first step. Inconsistent groups can arise from several factors. Ensure proper bullet seating depth, meticulously checking against the PDF’s recommended Cartridge Overall Length (COL). Variations in powder measure throws necessitate recalibration and consistent powder weighing.
Also, examine the rifle barrel for cleanliness and potential fouling. Different bullet weights, as detailed in the Hornady PDF, may yield varying results. Experimenting within safe load ranges, while carefully documenting results, can pinpoint the optimal combination for your rifle. Consistent reloading technique is key.
Pressure Issues and Adjustments
High pressure signs, when reloading 308 Winchester, demand immediate attention. Consult the Hornady load data PDF to verify your load is within established limits. Flattened primers, difficult extraction, or case head expansion are warning signals. Never exceed maximum load data listed in the PDF.
If pressure signs appear, reduce the powder charge in small increments (0.3-0.5 grains) and re-evaluate. Ensure the correct powder type is used, as substitutions can drastically alter pressure. Always prioritize safety; a pressure issue indicates a potentially dangerous situation. Referencing the Hornady PDF’s notes on specific powder/bullet combinations is crucial.
Primer Issues and Causes
Primer problems during 308 Winchester reloading, detailed in the Hornady load data PDF, can indicate several issues. Misfires suggest insufficient firing pin impact or incorrect primer seating. Flattened or pierced primers often signal excessive pressure – immediately reduce the powder charge. Consult the PDF for recommended primer types.
Incorrect primer selection, using the wrong size, or damaged primers can also cause failures. Ensure primers are properly seated to the correct depth, as specified in the Hornady PDF. Always use fresh, high-quality primers. Consistent primer performance is vital for accurate and safe reloading practices, as outlined in the documentation.