Hornady Lock-N-Load 204 Ruger Modified Case
$7.39
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The Hornady Lock-N-Load 204 Ruger Modified Case is a precision reloading tool built to pair with Hornady's Lock-N-Load Precision gauges. If you're serious about handload accuracy—whether you're fine-tuning match ammunition, developing precision rifle loads, or simply want the tightest tolerances possible—a modified case eliminates guesswork from chamber fit and bullet seating. This 204 Ruger version lets you test your loads in a gauge that mimics your actual rifle chamber before committing them to range testing.
The case itself is specially prepared to work seamlessly with Lock-N-Load gauges. A fine thread at the case head locks the case square to the gauge body, ensuring the chamber of the gauge stays perfectly aligned—critical for measuring case fit and bullet runout with real precision. The neck is opened .002" oversize and reamed perfectly round, so standard-diameter bullets slip in concentrically without forcing or misalignment. That concentricity matters: a bullet centered in the case mouth during your gauge test tells you exactly how your finished round will chamber and fire.
Because modified cases are interchangeable within the Lock-N-Load system, you can swap calibers quickly without recalibrating your gauge. If you already own a Lock-N-Load Precision gauge in 204 Ruger, this modified case is your gateway to the system's full potential. Serious reloaders, long-range hunters, and competitive shooters rely on this kind of precision measurement to eliminate variables and focus on what actually matters: repeatability and accuracy.
Key Features
- Fine-threaded case head locks securely to Lock-N-Load gauges for perfect square alignment
- Neck opened .002" oversize and reamed perfectly round for concentric bullet seating
- Chambered in 204 Ruger
- Works with standard-diameter bullets
- Interchangeable with other Lock-N-Load modified cases (by caliber)
Specifications
| Caliber | 204 Ruger |
| Neck Oversizing | .002" oversize |
| Attachment | Fine-threaded case head |
| Compatibility | Hornady Lock-N-Load Precision Gauges |
Frequently Asked Questions
What gauge do I need to use this modified case?
This modified case is designed to work with Hornady Lock-N-Load Precision gauges chambered in 204 Ruger. The fine thread on the case head locks it into the gauge body.
Can I use this modified case with other reloading tools?
No, this modified case is specifically engineered for Hornady Lock-N-Load Precision gauges. The threaded design and neck dimensions are proprietary to that system.
What bullets work with this modified case?
Standard-diameter 204 Ruger bullets will fit into the .002" oversize neck concentrically, allowing you to test your exact load without forcing or misalignment.
Do I need a modified case for each caliber I reload?
Yes, Lock-N-Load modified cases are caliber-specific. If you reload multiple cartridges and want to use the gauge system for each, you'll need a modified case for each caliber.
