Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 Review

Let’s Dive into Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638

The Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 from Lyman offers reloaders the ability to cast their own .40 caliber bullets, saving money and customizing their ammunition. This double-cavity mould allows for efficient production of 175-grain projectiles, perfect for both the .40 S&W and 10mm Auto cartridges. It represents a blend of traditional casting methods and modern manufacturing.

My interest in this mould stemmed from a desire for greater control over my ammunition components. Factory .40 S&W and 10mm Auto rounds can be expensive, and I wanted to experiment with different bullet weights and alloys to optimize performance in my pistols. Casting seemed the most logical path to achieve this goal.

Upon unboxing, the Lyman mould felt solid and well-made. The blocks fit together snugly, with no excessive play. The weight gave it a sense of quality, and the handles, though needing installation, appeared robust enough for extended casting sessions.

I considered other moulds from brands like Lee and RCBS. However, the Lyman name carries a certain weight in the reloading community, and I’d heard positive things about their mould quality and longevity. Ultimately, reputation and anticipated durability led me to choose this specific Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638.

My initial impression was one of cautious optimism. I was eager to start casting, but also aware that there would be a learning curve involved to produce consistent, high-quality bullets. I hoped this mould would prove to be a reliable tool in my reloading setup.


Real-World Testing: Putting Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 to the Test

First Use Experience

I tested the Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 in my workshop, focusing on consistent bullet weight and fill-out. I used a lead alloy consisting of reclaimed range lead, tin, and antimony. Temperature control of both the mould and the lead was key.

Casting on a brisk fall day required attention to maintaining consistent mould temperature. Initially, I struggled with wrinkles and incomplete fill-out, indicating the mould was too cold. Once the mould reached the right temperature, bullet production smoothed considerably.

The mould required a brief break-in period to function optimally. Initially, bullet release was sticky, requiring a firmer tap on the hinge. After a few dozen casts, however, the mould began to release bullets cleanly.

Extended Use & Reliability

After several months of use, the Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 has proven to be a reliable tool. I’ve cast several thousand bullets with it. The mould continues to hold its dimensions well.

There are minimal signs of wear and tear after continued use. The sprue plate shows some scoring from cutting the sprue, but this is purely cosmetic. The mould blocks still align perfectly and close tightly.

Maintaining the mould is straightforward. After each casting session, I clean it with a brush and apply a light coat of mould release spray. Proper storage in a dry place prevents rust. Compared to cheaper aluminum moulds I’ve used, this Lyman mould has significantly outperformed in terms of durability and consistent bullet quality.

Breaking Down the Features of Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638

Specifications

  • The Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 is designed for casting .40 caliber bullets. These bullets are suitable for both .40 S&W and 10mm Auto cartridges.
  • It casts a 175-grain bullet, a popular weight for both target shooting and self-defense. The weight provides a good balance of recoil and stopping power.
  • It is a double-cavity mould. This means it produces two bullets with each casting cycle, increasing efficiency.
  • The mould is made of cast iron. Cast iron retains heat well, promoting consistent bullet fill-out.
  • Lyman moulds are known for their precise machining. This ensures consistent bullet dimensions and weight.

Performance & Functionality

The Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 performs its job admirably. It consistently produces bullets within a narrow weight range. My bullets typically vary by only +/- 0.5 grains.

The mould’s greatest strength lies in its consistent bullet dimensions and reliable operation. A minor weakness is the initial learning curve required to master temperature control and casting technique. It absolutely meets my expectations for a quality Lyman product.

Design & Ergonomics

The mould’s build quality is excellent. The cast iron blocks feel substantial and durable, while the handles provide a comfortable grip.

The mould is generally user-friendly. However, it does require some experience with casting to achieve optimal results. Proper lubrication of the sprue plate is also important for smooth operation.

Durability & Maintenance

With proper care, the Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 should last for many years. The cast iron construction is resistant to wear and tear.

Maintenance is simple. Regular cleaning and lubrication are all that’s required to keep the mould in good working order.

Accessories and Customization Options

The Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 does not come with any specific accessories beyond the handles. These handles need to be attached.

There are no readily available customization options for the mould itself. However, you can customize the bullets by using different lead alloys to adjust hardness and weight. Aftermarket mould handles from other brands may fit, but this is not guaranteed.

Pros and Cons of Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638

Pros

  • Consistent Bullet Weight and Dimensions: Produces highly uniform bullets for consistent accuracy.
  • Durable Cast Iron Construction: Built to last through thousands of casting cycles.
  • Cost Savings: Allows reloaders to significantly reduce the cost of ammunition.
  • Versatility: Suitable for both .40 S&W and 10mm Auto cartridges.
  • Reputable Brand: Lyman is a trusted name in reloading equipment.

Cons

  • Initial Learning Curve: Requires some experience with casting techniques to achieve optimal results.
  • Requires Additional Equipment: Needs a lead pot, casting furnace, and other casting accessories.


Who Should Buy Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638?

This mould is perfect for reloaders who shoot .40 S&W or 10mm Auto extensively and want to reduce ammunition costs. It’s also suitable for those who want greater control over their bullet design and alloy composition. This product is ideal for competitive shooters and serious hobbyists.

Someone who only shoots occasionally or who is not interested in the process of casting should skip this product. Those with limited space or who are intimidated by the equipment needed should also consider other options.

Must-have accessories include a lead melting pot, a thermometer for monitoring lead temperature, a casting ladle, and a bullet sizing die. Proper safety equipment, such as gloves and eye protection, is also essential.

Conclusion on Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638

The Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 is a solid investment for serious reloaders. It offers consistent performance, durable construction, and significant cost savings over time.

At $111.49, the price is justified by the mould’s quality and longevity. It pays for itself after casting a few thousand bullets.

I would highly recommend this mould to anyone looking to cast their own .40 caliber bullets. If you’re ready to take control of your ammunition and save money in the process, the Lyman Pistol Bullet Mould: 40 S&W / 10mm – #401638 is an excellent choice. Start casting today and experience the satisfaction of creating your own ammunition!

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