
Availability: In Stock
If you're loading .400 Legend rounds and want to dial in bullet seating depth with the precision that tight groups demand, the Lee Precision 400 Legend Rifle Precision Micrometer Bullet Seating Die deserves a place in your reloading setup. This isn't a budget compromise—it's a purpose-built seating die that brings micrometer-grade control to the press without the premium price tag. The micrometer adjustment system lets you fine-tune seating depth to the thousandth of an inch, meaning you can chase the exact cartridge length your rifle prefers.
The heart of the system is a floating bullet guide that holds your case mouth and bullet in perfect alignment as the seating stem does its work. That radial clearance matters: it lets the guide and case find their natural alignment rather than forcing them together, which translates to less runout and more consistency round to round. The seating stem itself is machined and burnished smooth—it seats nearly any bullet point style without marring or deforming the bullet jacket, a detail that precision handloaders notice immediately.
Lee engineered a reversible floating guide, so you can unthread it and flip it to handle seating and crimping in a single stroke if your process calls for it. It's a feature you won't find everywhere at this price point. The laser-engraved micrometer thimble and body are legible under bench lighting, reading just like a depth micrometer you'd use in a machine shop. Dial your load, cycle the press, check the micrometer—repeatability is the goal, and this die delivers it.
Whether you're a serious handloader chasing accuracy or someone who simply wants ammunition that groups tighter than factory, dead-length bullet seating matters. This die makes it accessible.
| Caliber | .400 Legend |
| Product Type | Rifle Precision Micrometer Bullet Seating Die |
| Brand | Lee Precision |
| Adjustment Increments | 0.001 inch (one thousandth) |
| Guide Type | Floating, reversible |
Yes. The floating bullet guide is reversible—simply unthread it and reinstall it on the opposite end to enable simultaneous seating and crimping. This is an exclusive feature to Lee on this style of die.
The machined and burnished seating stem is designed to seat nearly any point-style bullet without damage or marking. However, always check that your specific bullets feed smoothly through the guide before running a full batch.
The micrometer is divided into one-thousandth-inch increments, providing infinitely adjustable precision seating depth. The laser-engraved markings read just like a depth micrometer, so you can dial your exact load and repeat it consistently.
Dead-length seating means the die body contacts the shell holder, ensuring the seating depth is uniform and precise regardless of minor variations in case length. This system locks in your cartridge overall length accurately across every round you load.

SKU: 197561495 • Weight: 0.59oz





Availability: In Stock
If you're loading .400 Legend rounds and want to dial in bullet seating depth with the precision that tight groups demand, the Lee Precision 400 Legend Rifle Precision Micrometer Bullet Seating Die deserves a place in your reloading setup. This isn't a budget compromise—it's a purpose-built seating die that brings micrometer-grade control to the press without the premium price tag. The micrometer adjustment system lets you fine-tune seating depth to the thousandth of an inch, meaning you can chase the exact cartridge length your rifle prefers.
The heart of the system is a floating bullet guide that holds your case mouth and bullet in perfect alignment as the seating stem does its work. That radial clearance matters: it lets the guide and case find their natural alignment rather than forcing them together, which translates to less runout and more consistency round to round. The seating stem itself is machined and burnished smooth—it seats nearly any bullet point style without marring or deforming the bullet jacket, a detail that precision handloaders notice immediately.
Lee engineered a reversible floating guide, so you can unthread it and flip it to handle seating and crimping in a single stroke if your process calls for it. It's a feature you won't find everywhere at this price point. The laser-engraved micrometer thimble and body are legible under bench lighting, reading just like a depth micrometer you'd use in a machine shop. Dial your load, cycle the press, check the micrometer—repeatability is the goal, and this die delivers it.
Whether you're a serious handloader chasing accuracy or someone who simply wants ammunition that groups tighter than factory, dead-length bullet seating matters. This die makes it accessible.
| Caliber | .400 Legend |
| Product Type | Rifle Precision Micrometer Bullet Seating Die |
| Brand | Lee Precision |
| Adjustment Increments | 0.001 inch (one thousandth) |
| Guide Type | Floating, reversible |
Yes. The floating bullet guide is reversible—simply unthread it and reinstall it on the opposite end to enable simultaneous seating and crimping. This is an exclusive feature to Lee on this style of die.
The machined and burnished seating stem is designed to seat nearly any point-style bullet without damage or marking. However, always check that your specific bullets feed smoothly through the guide before running a full batch.
The micrometer is divided into one-thousandth-inch increments, providing infinitely adjustable precision seating depth. The laser-engraved markings read just like a depth micrometer, so you can dial your exact load and repeat it consistently.
Dead-length seating means the die body contacts the shell holder, ensuring the seating depth is uniform and precise regardless of minor variations in case length. This system locks in your cartridge overall length accurately across every round you load.
SKU: 197561495 • Weight: 0.59oz
