Forster Bushing Full Length Sizing Die Kit W/ Bushings .338 Lapua Mag
The Forster Bushing Full Length Sizing Die Kit for .338 Lapua Mag is built for reloaders who demand precision and consistency from their rifle brass. This full length sizing die gives you direct control over how much tension you apply to the case neck during sizing—a critical detail that separates careless ammunition prep from match-grade reloading. While the die handles body and shoulder sizing the way it should, the bushing system lets you dial in exactly how much the neck gets worked, which keeps your brass alive longer and helps tighten groups downrange.
If you're loading for a precision .338 Lapua Mag rifle, you know that case longevity and consistency matter. The bushing approach means you're not over-working brass that still has plenty of life left. The body and shoulder get sized down to SAAMI minimum chamber specs, ensuring reliable feeding and function without unnecessary metal movement. That restraint pays off in case life and shot-to-shot repeatability—especially important when you're burning premium magnum brass.
The kit ships with three bushings (sizes .360, .362, and .364) so you can fine-tune neck tension to match your specific barrel and bullet combination. Most reloaders will find their sweet spot within this range, but having the options on hand means you're not guessing or improvising when you're developing a load.
Key Features
- Bushing-style neck sizing for precise, adjustable tension control
- Full length sizing of body and shoulder to SAAMI minimum specifications
- Extends case life by minimizing unnecessary neck work
- Includes three bushings (.360, .362, .364) for load development flexibility
- Designed for .338 Lapua Mag rifle reloading
Specifications
| Caliber | .338 Lapua Mag |
| Type | Full Length Sizing Die with Bushings |
| Included Bushings | .360, .362, .364 |
| Manufacturer | Forster |
Frequently Asked Questions
What bushings come with the .338 Lapua Mag sizing die kit?
The kit includes three bushings: .360, .362, and .364. These sizes cover the typical neck-tension range for most .338 Lapua Mag loads and allow you to match your specific chamber and bullet combination.
How does bushing sizing improve case life?
The bushing system lets you control neck working precisely, applying only the tension needed to hold the bullet and not more. This reduces unnecessary brass fatigue. The body and shoulder are still sized to SAAMI minimum specs for proper function, but the controlled neck sizing means your brass can survive more reloading cycles.
Is this die compatible with a standard reloading press?
The facts provided do not include press compatibility information. Check with Forster or consult your reloading press manual to confirm fit before ordering.

