The Forster Products 300 WSM full length sizing die is a precision reloading die built for shooters who demand consistent, concentric cartridges every single time. If you're loading for a 300 Winchester Short Magnum and want a sizing die that produces repeatable results with minimal runout, this is the workhorse you need on your reloading bench. Forster's reputation in the reloading community rests on meticulous manufacturing—each die is machined to exacting tolerances from quality steel, then hand polished before and after heat treatment to ensure a smooth, durable finish that lasts through thousands of cases.
What sets this full length sizing die apart is Forster's E-Z Out expander button, positioned higher in the neck area than conventional designs. That higher placement matters: it supports the case neck and holds the axis in proper alignment as you withdraw the case from the die, which directly translates to more concentric rounds and less neck runout. Combined with Forster's signature Cross Bolt Die Locking Ring—which clamps both ends of the split ring rather than screwing directly into die threads—you get a solid, repeatable setup that won't shift between loading sessions.
Whether you're prepping brass for long-range hunting or competitive shooting, a full length sizing die is fundamental to any serious 300 WSM handload. Forster's attention to detail, from the polishing to the engineering of the expander button, separates this die from mass-produced alternatives and rewards you with batches of ammunition that chamber cleanly and perform predictably.
Key Features
- Precision-machined from quality steel with hand-polished finish before and after heat treatment
- E-Z Out expander button positioned high in neck area for superior case alignment and reduced runout
- Cross Bolt Die Locking Ring clamps both ends of split ring for rock-solid, repeatable setup
- Full length sizing die tailored specifically for 300 WSM cartridges
- Built for consistent, concentric cartridge production
Specifications
| Product Name | Forster Products 300 WSM Full Length Sizing Die |
| Brand | Forster |
| Caliber | 300 Winchester Short Magnum (300 WSM) |
| Die Type | Full Length Sizing Die |
| Category | Reloading Equipment – Rifle Dies |
Frequently Asked Questions
What makes the E-Z Out expander button different from other sizing dies?
Forster's E-Z Out button is positioned higher in the neck area than most competitor designs. This higher position supports the case neck and maintains axis alignment as you withdraw the case, reducing neck runout and producing more concentric cartridges—a key advantage for consistent accuracy.
Is this a full length sizing die or a neck-sizing die?
This is a full length sizing die, which sizes the entire case. Full length dies are ideal for reloading once-fired brass or mixed brass lots, and they're the standard choice for hunters and general-purpose shooters.
What is the Cross Bolt Die Locking Ring?
Instead of tightening a screw directly into the die threads (which can damage the die or shift over time), Forster's Cross Bolt design clamps both ends of the split locking ring together. This approach holds your die setting more securely and repeatable from session to session.
What caliber is this die for?
This die is specifically manufactured for the 300 Winchester Short Magnum (300 WSM) cartridge.
