The Winchester 748 bullet is a popular choice among reloaders, known for its accuracy and versatility. This guide dives deep into load data for the .308 Winchester (7.62x51mm NATO) cartridge using the Win748 powder, providing crucial information for safe and effective reloading. Always consult your own reloading manuals and prioritize safety above all else. The data below is for informational purposes only and should not be considered a substitute for proper reloading instruction.
Understanding Win748 Powder
Winchester 748 is a medium-burning, extruded powder often favored for its consistent performance across a variety of bullet weights and applications. Its characteristics make it suitable for both hunting and target loads in the .308 Winchester. Its relatively low pressure characteristics generally contribute to less recoil and greater accuracy, when properly loaded.
Key Characteristics of Win748:
- Burn Rate: Medium
- Type: Extruded
- Applications: Ideal for .308 Winchester and other similar calibers.
- Metering: Generally meters well in most powder measures.
Win748 Load Data for .308 Winchester (7.62x51mm NATO)
Disclaimer: The following load data is for informational purposes only. Always cross-reference with your specific reloading manual before attempting to load any ammunition. Failure to do so can result in dangerous over-pressure or under-pressure conditions. This data assumes the use of new, properly sized brass.
The data presented below represents a range of potential load data. Experimentation within these parameters is recommended only after extensive research and with extreme caution. Start at the lower end of the charge weight range and work your way up, meticulously checking each step for pressure signs.
| Bullet Weight (grains) | Bullet Type | Powder Charge (grains) | Primer | COL (inches) | Notes |
|---|---|---|---|---|---|
| 150 | FMJ | 42.0 - 44.0 | CCI 200 | 2.800 - 2.810 | Start low and work up. |
| 150 | SP | 41.5 - 43.5 | CCI 200 | 2.800 - 2.810 | Start low and work up. Observe for pressure signs. |
| 168 | FMJBT | 40.0 - 42.0 | CCI 200 | 2.805 - 2.815 | Start low and work up. |
| 168 | HPBT | 39.5 - 41.5 | CCI 200 | 2.805 - 2.815 | Start low and work up. Monitor pressure closely. |
| 175 | FMJBT | 38.5 - 40.5 | CCI 200 | 2.810 - 2.820 | Start low and work up. |
Important Considerations:
- COL (Cartridge Overall Length): Ensure your COL is within the specified range. An incorrect COL can lead to dangerous over-pressure.
- Primer Type: The primer type listed is a suggestion; your specific reloading manual may recommend a different type.
- Pressure Signs: Always monitor for signs of excessive pressure, including flattened primers, excessive case head expansion, or unusually hard bolt lift. If any pressure signs are observed, immediately cease loading and consult your reloading manual.
- Safety Equipment: Always wear appropriate safety glasses and hearing protection while reloading.
Further Research and Resources
This information is a starting point for your research. Consult reputable reloading manuals specific to your equipment and components for complete and accurate load data. Remember, safe and responsible reloading practices are paramount.
This guide provides a framework for understanding Win748 load data for the .308 Winchester. Always remember to prioritize safety and accuracy in your reloading practices. Happy reloading!
