Description
Prepping .50 BMG brass is its own kind of project, and the L.E. Wilson 50 Caliber Decapping Pin & Base Set gives you a simple, rugged way to knock out primers before you ever touch your sizing die. The set pairs a stainless steel punch with a matching base sized to the .500 case head, so the case sits square and supported while the punch drives the primer straight out. It's the same approach a lot of serious handloaders swear by for keeping spent primer residue away from their press.
Why Reloaders Reach for the Wilson Decapping Punch & Base
Decapping as a separate step has real advantages. You keep primer grit off your press ram, you can tumble or clean cases with the pockets already open, and you get a much better feel for primer pockets that are starting to loosen up. This set shines on military surplus brass too, where crimped-in primers can be stubborn in a standard die. The punch itself tends to be beefier than the thin decapping pins found in most sizing dies, which means fewer bent or broken pins when you hit a tight one.
Putting the 50 Caliber Punch and Base Set to Work
Usage is about as straightforward as it gets. Set the case on the base, line up the punch, and drive the primer out. Plenty of folks use a light hammer or a mallet, while others run it under an arbor press for a smoother, more controlled push. Either way works, and the heavy .50 BMG case head gives you plenty to hold onto during the process.
Built in the USA, L.E. Wilson has a long reputation for turning out precision reloading tools that last a lifetime on the bench. If you're loading .50 BMG in any real volume, having a dedicated decapping setup like this one makes brass prep cleaner and a whole lot less frustrating.
Key Specifications
- Manufacturer: L.E. Wilson
- Manufacturer Part Number: PBS-50CL
- UPC: 815145025852
- Caliber: .50 BMG / 50 Caliber
- Case Head Size: .500
- Material: Stainless Steel
- Type: Decapping Punch & Base Set
- Function: Separate-operation primer removal
- Country of Origin: Made in the USA
What’s Included
- L.E. Wilson 50 Caliber decapping punch
- L.E. Wilson .500 decapping base
Frequently Asked Questions
How does the L.E. Wilson 50 Caliber Decapping Pin & Base Set work?
You place the fired case on the base, align the punch over the flash hole, and drive it down to push the spent primer out. Most reloaders use a light hammer or mallet, though it also works well under an arbor press for a smoother, controlled stroke. The base keeps the case head square and supported throughout.
Can this set remove crimped military primers from .50 BMG brass?
Yes, that's one of its strengths. The punch is built to drive out crimped-in primers from military surplus cases, which can be tough on the thinner decapping pins found in standard sizing dies. Running it as a separate step also keeps primer grit away from your press.
What is the 50 Caliber punch and base made of?
Both the punch and the base are stainless steel. That material holds up to the force needed for repeated decapping and resists wear over the long haul. L.E. Wilson tools are known for lasting a long time on the bench.
Why decap .50 BMG brass as a separate operation instead of in the sizing die?
Decapping separately keeps spent primer residue off your press ram and keeps your workspace cleaner. It also lets you tumble or clean cases with the primer pockets already open, and it gives you a better feel for pockets that are loosening up. Many precision handloaders prefer this method for exactly these reasons.





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