Two distinct philosophies of brass prep collide on the reloading bench. On one side, you have the Frankford Arsenal Universal Precision Case Trimmer, a versatile, drill-powered system designed for efficiency. On the other, the Derraco Engineering Ugly SRT Trimmer represents a focused, manual approach built for meticulous control. Choosing between them isn’t just about trimming brass; it’s about selecting a workflow that matches your volume and precision demands for 2026 and beyond.
Both tools promise to deliver precise case length, a critical step for consistent chambering and safe pressures. But their paths to that goal are fundamentally different. This head-to-head look cuts through the marketing to give you the practical details you need. My honest assessment is that your choice will hinge on whether you prioritize streamlined speed or hands-on, micrometer-fine accuracy for every single case.
Head-to-Head Feature Comparison
Let’s break down the core specifications and design philosophies. The Frankford Arsenal system is a complete kit, while the Derraco is a precision body requiring specific collets. Honestly speaking, this initial difference sets the tone for the entire user experience.
| Feature | Frankford Arsenal Universal Precision Trimmer | Derraco Engineering Ugly SRT Trimmer |
|---|---|---|
| Core Design | Universal collet system for shouldered cases (.17 Rem to .460 Weatherby). Powered by a 1/2″ drill or drill press. | Shoulder-referenced trimmer body. Requires purchase of specific collets (e.g., SRTNO.10 for .222/.223 Rem). Manual operation. |
| Micrometer Adjustment | Built-in depth micrometer for micro-adjustments. | Innovative “Lock N Adjust” ring for 1 thou (0.001″) micro-adjustment. |
| Case Holder System | Adjustable universal collet indexes on case shoulders. | Precision-machined, cartridge-specific collets. |
| Cutter Construction | Ultra-hard hardened stainless-steel cutter. | Durable & very sharp M2AL High-Speed Steel (HSS) cutter. |
| Includes storage case for collets and collars. | Main body CNC milled from 6061 aircraft alloy with hard-anodized finish. | |
| Brass shaving ejection port for clean operation. | Uses ultra-smooth France-made SKF ball bearings. | |
| Not compatible with straight-wall cartridges. | Sold as “SRT + Collet” or “Collet Only” careful selection required. | |
| Check current price on Amazon | Check current price on Amazon |
Precision & Consistency: The Core of Reloading
For precision shooting, trim-to-length consistency is non-negotiable. It directly influences case neck tension and, by extension, bullet release pressure. Both trimmers address this, but their methods define their best use cases.
Frankford Arsenal: Consistent Speed
The Frankford’s universal collet system is its greatest asset for volume. it aims for reliable repeatability across many cartridges. The built-in micrometer adjustment allows you to dial in your length, and the hardened cutter is designed to stay sharp. For the reloader processing hundreds of .223 Rem or .308 Win cases, this system offers a fantastic balance of speed and acceptable precision. The potential for minimal runout is there, provided your drill runs true.
Derraco Ugly SRT: Manual Mastery
The Derraco is a tool for the connoisseur. Its shoulder-referenced design, combined with a cartridge-specific collet, minimizes variables. The 1-thou adjustment ring is a tactile joy for dialing in exact lengths. The use of premium SKF bearings and a rigid CNC-milled body suggests exceptional attention to minimizing deflection and vibration during the cut. From my honest perspective, this is the tool you reach for when absolute consistency for a benchrest cartridge or a wildcat round is paramount. The manual control allows you to feel the cut, an intangible benefit for advanced brass prep.
Setup, Operation & Real-World User Experience
How do these trimmers feel on the bench? The experience diverges sharply from the moment you open the box.
Ease of Setup
Frankford Arsenal: You’re largely ready to go. Insert the correct collet, chuck it into your drill, set the micrometer, and start trimming. The learning curve is shallow. The included case keeps everything organized.
Derraco Ugly SRT: Setup is more involved. You must ensure you’ve purchased the correct “SRT + Collet” combo for your cartridge. Once you have the parts, assembly is straightforward, but the initial procurement requires more attention. There’s no storage case included.
Noise and Feel
This is a key differentiator often overlooked. The Frankford, powered by a drill, generates more noise and vibration. It’s a power tool. The Derraco, being hand-cranked, is virtually silent and provides direct tactile feedback. For those with a dedicated reloading room, noise may be minor. For someone working in a shared space, the Derraco’s quiet operation is a significant advantage. Speaking honestly, the calm, rhythmic process of the Ugly trimmer can be a meditative part of the reloading ritual.
Durability, Maintenance & Long-Term Value
Investment in a case trimmer should last for years and thousands of rounds. Build quality and cutter head life are critical here.
Build Quality & Materials
The Frankford uses a hardened stainless cutter and robust plastics for the case. It’s built to withstand the forces of drill-powered operation. The Derraco goes a different route: 6061 aircraft aluminum, hard-anodized for wear resistance, and premium bearings. It feels like a precision measuring instrument that also cuts brass. Both are durable, but the materials and manufacturing processes hint at different priorities: functional toughness versus machined excellence.
Cost Analysis & Versatility
Initial Cost: The Frankford Arsenal kit typically presents a lower upfront cost for a complete, versatile system.
Long-Term Cost: The Derraco’s model changes the equation. The initial body purchase is just the start. If you load for multiple cartridges, each requires a dedicated collet purchase. Over time, for a multi-caliber shooter, the investment can grow. However, for a shooter dedicated to one or two precision cartridges, the Derraco’s value is in its unparalleled output.
Versatility for wildcat or non-standard cartridges is another consideration. The Frankford’s adjustable collet has a defined range. The Derraco system relies on Derraco Engineering producing a specific collet, which they often do for niche rounds. It’s worth investigating their collet list if you have oddball brass.
Final Verdict: Which Case Trimmer is Right for You?
So, is the Derraco Ugly trimmer worth the extra money? It depends entirely on your reloading bench goals. Heres my honest take broken down by shooter profile.
Choose the Frankford Arsenal Universal Precision Trimmer if:
- You process high volumes of common rifle brass and value speed.
- You want a single, out-of-the-box solution for multiple shouldered cartridges.
- Your budget is a primary concern and you already own a drill.
- You’re comfortable with a power tool approach to precision trimming.
Its a workhorse that gets the job done efficiently and effectively. For most recreational and tactical reloaders, it’s more than sufficient. You can read more about optimizing your entire bench setup on our site.
Choose the Derraco Engineering Ugly SRT Trimmer if:
- You chase extreme accuracy and consistency for precision rifle or benchrest.
- You value a quiet, hands-on process and superior tactile feedback.
- You primarily load for one or two cartridges and are willing to invest in specialized tools.
- You appreciate tooling machined to exacting standards and manual control.
This is the tool for the reloader who views case length control as a foundational pillar of accuracy. Its an instrument, not just an accessory. The difference might be measured in thousandths, but on target, that can translate to a tangible edge.
The Hopnion.com Bottom Line
There is no single “best case trimmer.” The Frankford Arsenal excels as a versatile, powerful system for efficient brass prep. The Derraco Ugly SRT dominates as a manual precision instrument for the discerning shooter. Your workflow, volume, and accuracy requirements should guide you. To be completely honest, many serious shooters end up owning both: a power trimmer for bulk processing and a manual trimmer for final tuning of match brass.
Whichever path you choose, remember that consistent chamfer and deburr steps after trimming are equally vital. And always, without exception, consult your reloading manual and follow safety protocols from an official source. Tools enable precision, but knowledge ensures safety.
At the end of the day, the right tool is the one that fits your process and helps you build better ammunition. Thats the Honest Opinion from our bench to yours. Now, go forth and trim some brass. And if you’re looking to stabilize your rifle for those precision shots, don’t forget to check out our guide on the best picatinny mounting systems.