Blue Dot powder is a popular choice among reloaders for its versatility and suitability across various handgun and rifle cartridges. Its unique characteristics make it a reliable performer, but understanding its nuances is crucial for safe and accurate reloading. This guide provides comprehensive load data for Blue Dot, covering safety precautions, optimal use cases, and troubleshooting common issues. We'll also delve into the reasons behind Blue Dot's popularity and examine its performance across different calibers. This in-depth exploration aims to equip you with the knowledge to confidently utilize Blue Dot in your reloading endeavors.
Understanding Blue Dot Powder's Properties
Blue Dot is a relatively slow-burning, extruded powder known for its excellent metering characteristics. This makes it easier to achieve consistent powder charges, a critical factor for accuracy. Its slower burn rate makes it well-suited for heavier bullets and longer barrels, though it performs adequately in shorter barrels as well. It's a versatile powder, capable of handling a wide range of cartridges and bullet weights. However, its slower burn rate also necessitates careful attention to load data and adherence to manufacturer's recommendations. Improper loading can lead to dangerous pressure spikes.
Key Properties of Blue Dot:
- Extruded Powder: This contributes to consistent metering.
- Slow Burning Rate: Suitable for heavier bullets and longer barrels.
- Versatile: Works well across various handgun and rifle cartridges.
- Precise Metering: Easier to achieve consistent powder charges.
Safety First: Essential Precautions When Using Blue Dot
Safety should always be the paramount concern when reloading ammunition. Blue Dot, despite its popularity, requires meticulous attention to detail. Improper loading can result in dangerously high pressures, potentially leading to catastrophic firearm failure.
Crucial Safety Measures:
- Always use a reliable reloading scale: Consistency is critical with Blue Dot. Even small variations in powder charge can significantly impact pressure.
- Never deviate from published load data: Start at the minimum recommended charge and work your way up gradually, carefully monitoring pressure signs.
- Thoroughly inspect your loaded ammunition: Look for any signs of overpressure, such as bulged cases or primer flow.
- Use a powder measure specifically designed for extruded powders: This will help ensure consistent and accurate powder charges.
- Clean your reloading equipment thoroughly after each use: This prevents cross-contamination and ensures accuracy.
- Consult multiple sources for load data: Comparing data from different reputable sources can help identify potential outliers and ensure safety.
Blue Dot Load Data: Handgun Calibers
The following table provides example load data for common handgun calibers using Blue Dot. Always consult your reloading manual and other authoritative sources before loading any ammunition. This data is for informational purposes only and should not be considered an exhaustive guide. Load data can vary depending on the bullet type, case manufacturer, and firearm.
| Caliber | Bullet Weight (grains) | Bullet Type | Powder Charge (grains) | Primer | Case | Notes |
|---|---|---|---|---|---|---|
| .38 Special | 158 | Lead RN | 4.0 - 4.5 | Small Pistol | New | Start low and work up. |
| .357 Magnum | 158 | Lead RN | 5.5 - 6.0 | Small Pistol | New | Start low and work up. |
| .44 Special | 240 | Lead SWC | 7.0 - 7.5 | Large Pistol | New | Start low and work up. Use caution. |
| .45 ACP | 230 | Lead RNFP | 6.0 - 6.5 | Large Pistol | New | Start low and work up. |
Note: RN denotes Round Nose, SWC denotes Semi-wadcutter, and RNFP denotes Round Nose Flat Point. Always verify the specific load data with your reloading manual for the exact bullet and case combination you are using.
Blue Dot Load Data: Rifle Calibers
Blue Dot's slower burning rate also makes it suitable for certain rifle calibers. However, careful attention to pressure is even more critical in rifle cartridges due to their higher pressures. Again, the data below is for informational purposes only and should be cross-referenced with multiple sources.
| Caliber | Bullet Weight (grains) | Bullet Type | Powder Charge (grains) | Primer | Case | Notes |
|---|---|---|---|---|---|---|
| .30-30 | 150 | Round Nose | 18.0 - 19.0 | Large Rifle | New | Start low and work up. Use caution. |
| .30 Carbine | 110 | Full Metal Jacket | 14.0 - 15.0 | Small Rifle | New | Start low and work up. Use caution. |
Note: Always verify the specific load data with your reloading manual for the exact bullet and case combination you are using. Consult multiple resources and start with the minimum charge before working up.
Troubleshooting and Common Issues
While Blue Dot is generally reliable, certain issues can arise during reloading.
- Inconsistent Powder Charges: This is usually due to improper powder measure adjustment or using a measure not suitable for extruded powders.
- High Pressure Signs: If you experience bulged cases, primer flow, or excessive recoil, immediately cease reloading and consult a reloading manual or experienced reloader.
- Accuracy Issues: Inconsistent powder charges are often the culprit. Ensure your reloading equipment is clean and properly adjusted.
Conclusion: Safe and Effective Use of Blue Dot Powder
Blue Dot powder can be a valuable asset for reloaders, offering versatility and ease of metering. However, its slower burn rate necessitates careful attention to safety protocols. Always prioritize safety by adhering to published load data, using a reliable reloading scale, and carefully inspecting your finished ammunition. By following these guidelines and consulting multiple sources for load data, you can confidently and safely use Blue Dot powder to produce accurate and reliable ammunition. Remember, reloading is a skill that requires consistent practice, research and cautious attention to detail.