
Availability: In Stock
The Lyman Pro Series Micrometer Taper Crimp Die for 223 gives you the kind of control you need when you're running a precision reloading operation. This is a taper crimp die, not a roll crimp, which makes it ideal for semi-automatic rifle shooters who want consistent, reliable feeding without over-crimping their rounds. The micrometer adjustable head lets you dial in your crimp depth to the thousandth of an inch, so whether you're setting up for the first time or fine-tuning between lots, you're not guessing or relying on feel.
What sets the Pro Series apart is that floating crimp sleeve—it centers the cartridge automatically, then applies an even taper crimp all the way around. That means uniform pressure on your bullet and no bias toward one side of the case neck. That kind of consistency translates directly to better accuracy and more reliable chambering in your AR or other 223-compatible rifle. The die itself is stainless steel, so it won't rust up in the press or your reloading bench, and it'll still look clean years from now.
If you're already set up to reload 223 and you're serious about ammunition quality, this die rewards the time you invest in proper setup. Once your micrometer is locked in at the right setting, every round you run through gets the same crimp. That's the kind of repeatability that makes a real difference when you're chasing groups or running high-round-count training sessions.
| Product | Lyman Pro Series Micrometer Taper Crimp Die |
| Caliber | 223 Remington |
| Die Type | Taper Crimp Die |
| Adjustment | Micrometer head |
| Material | Stainless steel |
A taper crimp applies pressure to the bullet gradually along the case neck, creating a light grip that keeps the round stable but doesn't deform the bullet jacket. Roll crimps squeeze more firmly and are generally better for magnum rifle rounds and semi-rimmed cartridges. For 223 in semi-auto rifles, taper crimping is standard and gives you better consistency and easier bullet seating.
This is a standard die designed for single-stage presses and progressive presses that accept standard die stations. If you have a standard press in any brand (RCBS, Hornady, Lee, etc.), it will fit. Always verify your press accepts standard dies before ordering.
The micrometer head allows you to adjust crimp depth by turning it to your desired setting. The floating sleeve then centers the cartridge and applies a uniform taper crimp at that depth. Start conservatively and increase crimp only as needed—you're looking for just enough to hold the bullet steady without creating excess neck pressure.
The product is the die itself. You'll use it as part of your existing reloading setup—press, shell holder, cartridge cases, bullets, powder, and primers are sold separately.

SKU: 167525544 • Width: 1.65in • Height: 1.6in • Depth: 4.9in • Weight: 0.732oz





Availability: In Stock
The Lyman Pro Series Micrometer Taper Crimp Die for 223 gives you the kind of control you need when you're running a precision reloading operation. This is a taper crimp die, not a roll crimp, which makes it ideal for semi-automatic rifle shooters who want consistent, reliable feeding without over-crimping their rounds. The micrometer adjustable head lets you dial in your crimp depth to the thousandth of an inch, so whether you're setting up for the first time or fine-tuning between lots, you're not guessing or relying on feel.
What sets the Pro Series apart is that floating crimp sleeve—it centers the cartridge automatically, then applies an even taper crimp all the way around. That means uniform pressure on your bullet and no bias toward one side of the case neck. That kind of consistency translates directly to better accuracy and more reliable chambering in your AR or other 223-compatible rifle. The die itself is stainless steel, so it won't rust up in the press or your reloading bench, and it'll still look clean years from now.
If you're already set up to reload 223 and you're serious about ammunition quality, this die rewards the time you invest in proper setup. Once your micrometer is locked in at the right setting, every round you run through gets the same crimp. That's the kind of repeatability that makes a real difference when you're chasing groups or running high-round-count training sessions.
| Product | Lyman Pro Series Micrometer Taper Crimp Die |
| Caliber | 223 Remington |
| Die Type | Taper Crimp Die |
| Adjustment | Micrometer head |
| Material | Stainless steel |
A taper crimp applies pressure to the bullet gradually along the case neck, creating a light grip that keeps the round stable but doesn't deform the bullet jacket. Roll crimps squeeze more firmly and are generally better for magnum rifle rounds and semi-rimmed cartridges. For 223 in semi-auto rifles, taper crimping is standard and gives you better consistency and easier bullet seating.
This is a standard die designed for single-stage presses and progressive presses that accept standard die stations. If you have a standard press in any brand (RCBS, Hornady, Lee, etc.), it will fit. Always verify your press accepts standard dies before ordering.
The micrometer head allows you to adjust crimp depth by turning it to your desired setting. The floating sleeve then centers the cartridge and applies a uniform taper crimp at that depth. Start conservatively and increase crimp only as needed—you're looking for just enough to hold the bullet steady without creating excess neck pressure.
The product is the die itself. You'll use it as part of your existing reloading setup—press, shell holder, cartridge cases, bullets, powder, and primers are sold separately.
SKU: 167525544 • Width: 1.65in • Height: 1.6in • Depth: 4.9in • Weight: 0.732oz
