Description
If you're running an AR-15 or any gas gun in .223 and your reloads are getting sticky on the chamber, a small base die is usually the fix. Redding's small base full length sizer takes the case body down just a hair more than a standard full length die, bumping the shoulder and bringing the base back to minimal dimensions. That extra bit of sizing is what keeps rounds chambering smoothly and feeding reliably when the action is slamming shut on its own instead of being worked by hand.
What the 223 Remington Small Base Die Does Differently
A standard full length die sizes plenty for bolt guns, but semi-autos, pumps, and lever rifles ask more of your brass. This die resizes the entire case from the head up through the shoulder and neck, and it does it tighter than conventional dies. The result is brass that fits a minimum-spec chamber without the hand-fitting hassle. It carries an integral decapping rod with a neck expander button, so you're knocking out spent primers and sizing in a single pull of the handle.
Build Quality on the Redding Small Base Sizer
Redding doesn't cut corners here. The die is machined from quality alloy steel and heat treated in atmospherically controlled furnaces, then hand-polished inside for smooth operation and to keep your cases concentric. The interior surfaces are finished to a high hardness to cut down on sizing effort and wear over a long reloading life. It uses the industry-standard 7/8-14 threaded body, so it threads right into any common single-stage or progressive press.
One thing worth knowing going in: because this die works the brass harder than a standard sizer, good case lube is not optional. Use plenty of a quality lubricant and you'll avoid stuck cases and keep things running smooth. Keep in mind the shellholder is sold separately, so grab one in the correct size if you don't already have it on the bench.
Key Specifications
- Manufacturer: Redding
- Manufacturer Part Number: 08111
- UPC: 611760913235
- Cartridge: .223 Remington
- Die Style: Full Length Sizing Die (Small Base)
- Number of Dies: 1
- Thread: 7/8-14 (industry standard)
- Material: Heat treated alloy steel
- Decapping: Integral decapping rod with neck expander button
- Country of Origin: United States
What’s Included
- Redding 223 Remington small base full length sizing die (1)
- Decapping rod assembly with neck expander button
- Lock ring
Frequently Asked Questions
What's the difference between this small base die and a standard full length sizing die?
A standard full length die sizes the case enough for most bolt-action rifles, but a small base die takes the case body and base down a little further toward minimum dimensions. That extra sizing is what makes a difference in semi-autos, pump guns, and lever actions where reliable chambering matters. If your reloads are feeding fine from a bolt gun, a standard die is usually all you need.
Do I need this die for my AR-15 in .223?
A lot of handloaders use a standard full length die in AR-15s without issue, but if you're getting sticky chambering or you're sorting mixed-headstamp or once-fired brass, the small base die is the reliable answer. It's especially handy for tighter chambers and high-volume gas gun shooting. For loading precision ammo for a tight bolt-action chamber, it's usually more sizing than you need.
Does the Redding 08111 die come with a shellholder?
No, the shellholder is sold separately. You'll need the correct shellholder for the .223 Remington case head, which is a common size most reloaders already have on hand. If this is your first .223 setup, pick one up alongside the die.
Why does a small base die need so much lube?
Because it sizes the brass harder than a standard die, friction inside the die is higher, which raises the risk of a stuck case if you skimp on lubrication. Use a good quality case lube and apply it generously before running your brass. Do that and you'll get smooth, trouble-free sizing cycle after cycle.





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