Forster 257 Neck Tension Gage
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Accurately measure neck tension for 257 caliber brass with Forster’s precision tool.
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Description
Description
The Forster 257 Neck Tension Gage is an essential inspection tool for reloaders, designed to quickly and accurately screen a batch of brass before bullet seating operations. This tool provides the necessary information to create precise neck tensions, ensuring reliable performance in your reloaded rounds.
Measuring 10.5 inches in length, the gage is lightweight at just 0.10 ounces, making it easy to handle during the reloading process. It is constructed with four stepped diameters that increase in size, allowing users to determine the optimal inside neck diameter for consistent bullet release. This feature helps prevent issues such as a ‘donut’ formation at the neck-shoulder junction.
Simply insert the stepped end of the tool into the neck of your sized case until one of the diameters achieves a slip fit. This value can then be used to fine-tune your case preparation for enhanced accuracy. The Forster Neck Tension Gage is available in multiple calibers, facilitating versatility in your reloading tasks.
Ideal for precision reloaders, the Forster 257 Neck Tension Gage is perfect for ensuring your cases are prepared to the highest standards, making it a vital addition to your reloading toolkit.
Specifications
- Short Stroke Gas Piston Gas System (Rifle Length)
- 18.6″ Barrel Length ( Mid-Weight style, non-fluted)
- 1:8 Twist Rate Rifling

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