Let’s Dive into Lee 6 Cavity Mold C312-155-2R 90741
The Lee 6 Cavity Mold C312-155-2R 90741 is designed for reloaders aiming for volume production of 7.62x39mm ammunition. Made by Lee Precision, it features a six-cavity design to cast multiple bullets simultaneously, significantly speeding up the reloading process. The mold also incorporates steel bushings and alignment pins to maintain lasting precision, as well as a cam-operated sprue plate, a feature intended to prevent the “pounding” common to some other mold designs.
As an avid shooter and reloader, I found myself increasingly frustrated with the slow pace of my previous two-cavity mold. The time required to produce enough rounds for a weekend of shooting was becoming excessive, especially considering my growing interest in the 7.62x39mm cartridge and its popularity across a range of rifles. I was searching for a mold that could increase my production speed without sacrificing the quality and consistency of my cast bullets.
Upon unboxing, the Lee 6 Cavity Mold C312-155-2R 90741 feels substantial, though noticeably lighter than steel molds I’ve used. The aluminum construction is immediately apparent, and the steel bushings provide a reassuring hint of durability. The mold halves line up well and the cam-operated sprue plate feels relatively smooth in operation, though it did require a touch of lubrication before first use.
I considered the Lyman 311358 and the NOE 311-155-RN, both reputable mold manufacturers. The Lee mold stood out due to its combination of six-cavity production and affordable price point, making it a compelling option for high-volume casting on a budget. The Lee mold promised to meet my needs without breaking the bank.
My initial impression was one of cautious optimism. I was excited by the potential for increased production speed but also mindful of the mixed reviews often associated with Lee molds. I knew that some break-in and fine-tuning might be required to achieve optimal results.
Real-World Testing: Putting Lee 6 Cavity Mold C312-155-2R 90741 to the Test
First Use Experience
My initial testing took place in my home reloading workshop, which is equipped with a ventilation system and a sturdy workbench for casting. I used a lead alloy consisting of approximately 90% lead, 5% tin, and 5% antimony, a common blend for 7.62x39mm bullets. I preheated the mold on a hot plate to ensure proper fill-out and consistent bullet weight.
The Lee 6 Cavity Mold C312-155-2R 90741 performed surprisingly well, even after only a short preheating period. The aluminum construction heats up quickly. I did notice, however, that the mold temperature was much more affected by outside temperature on the aluminum mold compared to steel molds I have used in the past.
Initially, there was a learning curve in getting into a good rhythm with the mold. The first few pours resulted in some incomplete fill-outs and wrinkles on the bullet surfaces. This was easily resolved by adjusting my pouring technique and maintaining a consistent cadence. Once I found the sweet spot, the mold started producing consistent, well-formed bullets.
One issue I did encounter during the first use was some minor flashing along the mold parting line. This was likely due to insufficient clamping force. I addressed this by tightening the mold handles securely and making sure the mold halves were properly aligned.
Extended Use & Reliability
After several weeks of consistent use, the Lee 6 Cavity Mold C312-155-2R 90741 has proven to be a reliable workhorse. The mold heats up quickly and maintains a consistent temperature, allowing for efficient bullet casting.
The aluminum construction has held up reasonably well, with no significant signs of wear and tear beyond some minor cosmetic scratches. The steel bushings have helped to maintain the mold’s alignment and prevent any slop or looseness.
Maintenance is relatively straightforward. After each casting session, I clean the mold with a soft brush and a non-abrasive solvent to remove any lead residue. I also apply a thin layer of mold release compound to the mold faces to prevent sticking and ensure smooth operation.
Compared to my previous two-cavity mold, the Lee 6 Cavity Mold C312-155-2R 90741 has significantly increased my bullet production rate. I can now cast several hundred bullets in a single session, making it much easier to keep up with my ammunition needs.
Breaking Down the Features of Lee 6 Cavity Mold C312-155-2R 90741
Specifications
- Manufacturer: Lee Precision. Lee is known for producing affordable reloading equipment and molds.
- Caliber: 7.62x39mm. This mold is specifically designed for casting bullets for the 7.62x39mm cartridge.
- Bullet Weight: 312 grain. The mold casts bullets with an approximate weight of 312 grains, depending on the specific alloy used.
- Bullet Type: Round Nose (RN). The round nose design is known for its reliable feeding in semi-automatic rifles.
- Cavity: 6 Cavity. This allows for higher volume casting of bullets.
- Charging Handle Included: No. The user will need to use hot pads, or purchase handles separately.
- Attachment Type: Quick Detach. This is referring to the handles.
These specifications are crucial because they directly impact the performance and versatility of the mold. The 7.62x39mm caliber makes it suitable for a wide range of rifles, while the 312-grain weight and round nose design offer a good balance of accuracy and feeding reliability. The six-cavity design significantly boosts production speed, and the steel bushings contribute to the mold’s overall durability and precision.
Performance & Functionality
The Lee 6 Cavity Mold C312-155-2R 90741 performs admirably, especially considering its price point. Once the mold is properly heated and the pouring technique is refined, it consistently produces well-formed bullets with minimal defects.
The main strength of this mold is its high production rate. The six-cavity design allows for significantly faster bullet casting compared to single or double-cavity molds. One area that could use improvement is the sprue plate design. While the cam-operated system is intended to prevent pounding, it can still be a bit stiff and require some effort to operate smoothly.
Overall, the Lee 6 Cavity Mold C312-155-2R 90741 meets my expectations. It provides a cost-effective and efficient way to produce a large quantity of 7.62x39mm bullets.
Design & Ergonomics
The Lee 6 Cavity Mold C312-155-2R 90741 features a simple, functional design. The aluminum construction keeps the weight manageable, while the steel bushings provide added durability.
The mold is relatively user-friendly. Some may require more time to learn it and use it effectively.
Durability & Maintenance
The Lee 6 Cavity Mold C312-155-2R 90741 is reasonably durable, but aluminum molds are inherently less robust than steel molds. With proper care and maintenance, it should last for many years of use.
Maintaining the mold is relatively easy. Regular cleaning and lubrication are essential to prevent lead buildup and ensure smooth operation.
Accessories and Customization Options
The Lee 6 Cavity Mold C312-155-2R 90741 comes with very few accessories. A set of handles must be purchased separately.
There are limited customization options available for this mold. The most common modification is to lap the mold faces to improve alignment and reduce flashing.
Pros and Cons of Lee 6 Cavity Mold C312-155-2R 90741
Pros
- High production rate due to the six-cavity design.
- Affordable price point, making it accessible to budget-conscious reloaders.
- Consistent bullet casting once the mold is properly heated and the technique is refined.
- Relatively lightweight and easy to handle.
- Steel bushings enhance durability and maintain alignment.
Cons
- Aluminum construction is less durable than steel.
- Sprue plate operation can be stiff and require some effort.
- May require some initial tuning to achieve optimal performance.
Who Should Buy Lee 6 Cavity Mold C312-155-2R 90741?
The Lee 6 Cavity Mold C312-155-2R 90741 is perfect for reloaders who shoot the 7.62x39mm cartridge frequently and need to produce a large quantity of bullets quickly. This is a good match for casual shooters, or people who load to plink in the back yard.
This product might not be the best choice for reloaders who demand the highest level of precision and are willing to invest in a more expensive mold. Those who prioritize extreme durability over affordability might also want to consider a steel mold.
Must-have accessories include a set of Lee mold handles, a hot plate for preheating the mold, and a reliable lead pot for melting and pouring the lead alloy.
Conclusion on Lee 6 Cavity Mold C312-155-2R 90741
The Lee 6 Cavity Mold C312-155-2R 90741 offers an excellent value proposition for reloaders seeking a high-volume bullet casting solution at an affordable price. While it may not be the most refined or durable mold on the market, it gets the job done effectively and efficiently.
The price is certainly justified given the increase in production speed it provides. For reloaders on a budget who don’t mind spending a little extra time tuning and maintaining their equipment, this mold is a worthwhile investment.
I would personally recommend the Lee 6 Cavity Mold C312-155-2R 90741 to anyone looking to streamline their 7.62x39mm bullet casting process. Just remember to do your homework, invest in the necessary accessories, and be prepared to put in a little effort to achieve the best results. Happy casting!