Let’s Dive into RCBS UPM Measure Cylinder Assy Small – 9004
The RCBS UPM Measure Cylinder Assy Small – 9004 is a vital tool for reloaders who demand precision and consistency when working with smaller powder charges. This small cylinder assembly transforms a standard RCBS Uniflow Powder Measure into a high-precision instrument for specific reloading tasks. It’s designed to offer superior accuracy when dispensing smaller volumes of powder, a task where larger cylinders often fall short.
I’ve always struggled to achieve consistent powder drops with my standard cylinder when loading pistol cartridges, especially with fast-burning powders. The larger cylinder was simply too sensitive, leading to frustrating variations in charge weights. So, I sought a solution that would provide tighter tolerances and more reliable results.
Upon unboxing the RCBS UPM Measure Cylinder Assy Small – 9004, I was immediately impressed by its robust construction. The cylinder is made of hardened steel with a smooth finish. It feels substantial and well-made, promising a long service life.
Compared to using the standard cylinder for small charges, the RCBS UPM Measure Cylinder Assy Small – 9004 appeared much more precise. Other similar options exist, such as purchasing a dedicated small powder measure. However, this assembly offered a more cost-effective and space-saving solution, allowing me to utilize my existing Uniflow measure without needing additional equipment on my bench.
My initial impression was one of cautious optimism. I was excited to see if this small cylinder assembly would finally solve my consistency problems. I hoped it would deliver the precision I needed for my pistol cartridge reloading.
Real-World Testing: Putting RCBS UPM Measure Cylinder Assy Small – 9004 to the Test
First Use Experience
My first test took place at my reloading bench, focusing on loading .38 Special cartridges with a light charge of Hodgdon Titegroup. This is a notoriously difficult powder to meter consistently. I specifically chose this combination to push the RCBS UPM Measure Cylinder Assy Small – 9004 to its limits.
The assembly performed admirably, even in these challenging conditions. The powder drops were significantly more consistent than with the standard cylinder, usually varying by no more than 0.1 grain. I experienced no bridging or cutting of the powder, leading to smooth and reliable operation.
It required minimal adjustment to dial in the desired charge weight. The micrometer adjustment was precise and responsive. I experienced none of the “drift” that sometimes plagues powder measures.
Extended Use & Reliability
After several weeks of consistent use, the RCBS UPM Measure Cylinder Assy Small – 9004 has proven to be a reliable and indispensable part of my reloading process. It consistently delivers accurate powder charges across a variety of pistol cartridges and powders. It handles everything from small charges of fast-burning pistol powders to larger charges of slower-burning rifle powders with equal aplomb (within its capacity, of course).
There are no signs of wear or degradation. The hardened steel construction has stood up well to repeated use. Its interior surfaces have remained smooth and free of scratches.
Maintenance is straightforward. The cylinder assembly can be easily disassembled for cleaning. I use a dry brush and compressed air to remove any powder residue, ensuring continued accuracy and smooth operation. Compared to my previous experiences with inconsistent powder drops and frustrating adjustments, this small cylinder assembly has been a revelation.
Breaking Down the Features of RCBS UPM Measure Cylinder Assy Small – 9004
Specifications
The RCBS UPM Measure Cylinder Assy Small – 9004 is designed to convert an RCBS Uniflow Powder Measure into a smaller capacity unit. It is constructed from hardened steel for durability and long-lasting performance. The color is RCBS‘s signature green.
The key specification here is the capacity range, which is optimized for dispensing smaller powder charges with greater precision than the standard cylinder. This feature significantly improves accuracy, especially when reloading pistol cartridges.
Performance & Functionality
The RCBS UPM Measure Cylinder Assy Small – 9004 excels at its primary function: accurately dispensing small powder charges. It provides consistent and reliable powder drops, eliminating the frustrating variations that can occur with larger cylinders when metering small volumes. It is both a strength and a weakness that this cylinder assembly is intended for smaller powder charge applications only.
The assembly meets and exceeds expectations in terms of precision and ease of use. I have found that it delivers consistent results, even with notoriously difficult-to-meter powders. It is a great product.
Design & Ergonomics
The build quality is excellent. The hardened steel construction feels robust and durable. The assembly fits perfectly into my existing RCBS Uniflow Powder Measure.
It is user-friendly. The micrometer adjustment is easy to use. Its relatively compact size doesn’t add excessive bulk to the powder measure. There’s practically zero learning curve.
Durability & Maintenance
The hardened steel construction suggests that the RCBS UPM Measure Cylinder Assy Small – 9004 will last for many years. It exhibits excellent resistance to wear and tear. I anticipate that it should perform reliably for the lifetime of my reloading hobby.
Maintenance is simple. The assembly is easy to disassemble and clean. Keeping it free from powder residue is all that’s needed to maintain its accuracy and smooth operation.
Accessories and Customization Options
The RCBS UPM Measure Cylinder Assy Small – 9004 doesn’t require any specific accessories beyond those already used with the RCBS Uniflow Powder Measure. There are no specific customization options available for the cylinder assembly itself. However, it is compatible with all standard RCBS Uniflow Powder Measure accessories, such as powder baffles and dispensing stands.
Pros and Cons of RCBS UPM Measure Cylinder Assy Small – 9004
Pros
- Increased Accuracy with Small Powder Charges: The primary advantage is the significantly improved accuracy when dispensing smaller volumes of powder. This leads to more consistent ammunition.
- Durable Construction: The hardened steel construction ensures long-lasting performance and resistance to wear and tear.
- Easy to Install and Use: The assembly is straightforward to install and requires minimal adjustment to achieve the desired charge weight.
- Cost-Effective Solution: It’s a more affordable alternative to purchasing a dedicated small powder measure.
- Consistent Powder Drops: Eliminates bridging and cutting of powder for smoother operation.
Cons
- Limited Capacity Range: The small cylinder is not suitable for dispensing large powder charges. It requires switching back to the standard cylinder for larger volume loads.
- Price: While cheaper than a dedicated small powder measure, it still carries a price tag that might be a hurdle for some reloaders on a budget.
Who Should Buy RCBS UPM Measure Cylinder Assy Small – 9004?
This is perfect for reloaders who frequently load pistol cartridges or low-charge rifle rounds and require precise powder metering for optimal accuracy and consistency. Also, competitive shooters and precision reloaders who demand the utmost consistency in their ammunition will benefit greatly from this upgrade.
This product is not as crucial for reloaders who primarily load high-volume rifle cartridges with larger powder charges, as the standard cylinder is usually sufficient for these applications. Those on an extremely tight budget may find it difficult to justify the cost, especially if they only occasionally load small-charge cartridges.
A must-have modification to complement this product is a powder baffle inside the hopper of the Uniflow powder measure. This helps maintain a consistent powder column above the cylinder, further improving metering accuracy.
Conclusion on RCBS UPM Measure Cylinder Assy Small – 9004
The RCBS UPM Measure Cylinder Assy Small – 9004 is a worthwhile investment for reloaders seeking improved accuracy and consistency when dispensing small powder charges. It transforms the RCBS Uniflow Powder Measure into a precision instrument for pistol cartridge reloading and other low-volume applications. It has solved a long-standing problem for me.
The price is justified by the enhanced accuracy and the long-lasting durability of the hardened steel construction. It offers a tangible improvement in reloading precision and consistency.
I would wholeheartedly recommend the RCBS UPM Measure Cylinder Assy Small – 9004 to any reloader who prioritizes accuracy and is looking for a cost-effective way to upgrade their existing RCBS Uniflow Powder Measure. Don’t settle for inconsistent powder drops. Equip yourself with the tools you need to create truly accurate ammunition and this RCBS UPM Measure Cylinder Assy Small – 9004 gets you one step closer to that.