Bushing Bump Kit 308 Win-Neck Sizing Die & 3 Neck Bushings .336 .334 .332
$105.56
The Forster Bushing Bump Kit for .308 Winchester gives handloaders precise control over neck tension—a critical variable that separates mediocre loads from consistently accurate ones. This kit pairs a hand-polished sizing die with three pre-selected neck bushings (.336, .334, and .332) so you can dial in the exact amount of grip your cartridge necks need. Whether you're fine-tuning loads for a bolt-action hunting rifle, a precision match gun, or a semi-auto platform, matching bushing sizes to your brass lets you minimize runout and maximize consistency shot to shot.
Forster's hand-polished dies are machined to exacting tolerances and paired with bushings that are equally precise. The three bushing sizes included cover a practical range, letting you experiment with different neck tensions to find what your rifle and load prefer. This approach beats one-size-fits-all neck sizing and gives you the repeatability serious reloaders demand.
If you're already neck-sizing your bottleneck rifle brass, this kit is a logical upgrade. If you're new to bushing-die reloading, it's an accessible entry point into the level of control that separates handloads that just work from handloads that truly shine.
Key Features
- Hand-polished .308 Winchester neck sizing die
- Three hand-selected neck bushings: .336, .334, and .332 diameters
- Finely machined bushing internals for smooth, consistent sizing
- Allows precise control of neck tension for better accuracy and concentricity
- Essential for reloaders pursuing precision loads and reduced runout
Specifications
| Caliber | .308 Winchester |
| Bushing Sizes Included | .336, .334, .332 |
| Die Type | Neck Sizing Die |
| Finish | Hand-polished |
Frequently Asked Questions
What does a bushing neck sizing die do differently than a standard neck sizing die?
A bushing neck die lets you control how much the die squeezes the cartridge neck. By swapping between the included bushings, you can adjust neck tension to match your brass and primer pocket condition, resulting in better concentricity and more consistent case-to-bullet contact.
How do I know which bushing size to use?
This kit includes three sizes to let you find the right fit for your brass and preferences. Many reloaders start with the middle size and adjust up or down based on how the loads perform and how easily cases chamber. You'll need to experiment to dial in the best tension for your particular rifle and loads.
Is this kit compatible with my reloading press?
This die is a standard bushing-type neck die. It will work with any reloading press that accepts standard .308 Winchester dies, though you'll want to verify your press is compatible with bushing dies if you're uncertain.
What's included in the kit?
You get one hand-polished .308 Winchester neck sizing die and three pre-selected neck bushings in .336, .334, and .332 diameters—everything you need to start experimenting with neck tension control.
