Forster Neck Tension Gage NTG-277
Precision inspection tool for .277 caliber brass. Four stepped diameters help you measure inside neck diameter and optimize bullet seating tension for consistent, accurate reloads.
Forster Neck Tension Gage: Essential Brass Inspection
The Neck Tension Gage (NTG) is a straightforward but invaluable tool for any serious reloader. It bridges the gap between case preparation and bullet seating—the critical phase where consistency determines accuracy.
How It Works
Simply insert the stepped end into your sized case neck. Slide it in until one of the four diameters achieves a slip fit. The etched markings on each diameter tell you the inside neck measurement. This single piece of information guides your entire bullet seating operation.
What It Reveals
- Inside neck diameter of your prepared brass
- Optimal neck tension for consistent bullet release
- Donut formation at the neck-shoulder junction (a common defect)
- Batch consistency across your brass supply
The Reloading Advantage
Exacting neck tension is the foundation of precision ammunition. Too loose, and bullets release inconsistently. Too tight, and you risk case neck splitting. The NTG eliminates guesswork. Use it after case neck sizing and before bullet seating to fine-tune your process.
Caliber-Specific Design
This .277 caliber version is machined to the exact specifications needed for proper measurement in that bore diameter. Available in five calibers to match your reloading needs.
