
Availability: In Stock
The Lee Precision 450 Bushmaster rifle precision micrometer bullet seat die gives handloaders the repeatability and control they need for consistent cartridge assembly without the premium price tag. If you're working up accurate 450 Bushmaster loads for hunting or precision shooting, this die's micrometer adjustment system and dead-length seating design let you dial in exact bullet seating depths—critical for both feeding reliability and ballistic consistency.
What sets this die apart is the floating bullet guide, which holds your case and bullet in perfect alignment during seating. The guide has radial clearance so it self-centers rather than fighting the press, meaning less bullet marking and damage, and more uniform results. The micrometer thimble and body are laser-engraved with divisions in thousandths of an inch, so you read it like a depth micrometer—no guessing, no second-guessing. And since the body contacts the shell holder, you get uniform seating depth every cycle. The bullet seating stem is machined and burnished to handle nearly any bullet point style without marring, and the floating guide is reversible, so you can flip it to seat and crimp in a single stroke if your workflow calls for it.
This die proves that precision reloading doesn't demand a high-end price. Whether you're a 450 Bushmaster hunter fine-tuning a load or a handloader who values consistency, the Lee micrometer seating die delivers the control you need at a price that makes sense.
| Cartridge | 450 Bushmaster |
| Die Type | Bullet Seating Die |
| Adjustment Type | Precision Micrometer |
| Seating Method | Dead Length |
| Micrometer Divisions | 0.001 inch (one thousandth) |
| Bullet Guide Type | Floating (Reversible) |
This die is designed for 450 Bushmaster cartridges specifically.
The machined and burnished seating stem is designed to seat nearly any point style bullet without damage or marking.
Yes. The floating bullet guide is reversible—simply unthread it and reinstall it flipped to allow seating and crimping simultaneously in a single stroke.
The precision micrometer thimble features laser-engraved divisions representing one thousandth of an inch each, so you adjust and read it like a standard depth micrometer. The die is infinitely adjustable to accommodate different bullet and case combinations.

SKU: 197561460 • Weight: 0.58oz





Availability: In Stock
The Lee Precision 450 Bushmaster rifle precision micrometer bullet seat die gives handloaders the repeatability and control they need for consistent cartridge assembly without the premium price tag. If you're working up accurate 450 Bushmaster loads for hunting or precision shooting, this die's micrometer adjustment system and dead-length seating design let you dial in exact bullet seating depths—critical for both feeding reliability and ballistic consistency.
What sets this die apart is the floating bullet guide, which holds your case and bullet in perfect alignment during seating. The guide has radial clearance so it self-centers rather than fighting the press, meaning less bullet marking and damage, and more uniform results. The micrometer thimble and body are laser-engraved with divisions in thousandths of an inch, so you read it like a depth micrometer—no guessing, no second-guessing. And since the body contacts the shell holder, you get uniform seating depth every cycle. The bullet seating stem is machined and burnished to handle nearly any bullet point style without marring, and the floating guide is reversible, so you can flip it to seat and crimp in a single stroke if your workflow calls for it.
This die proves that precision reloading doesn't demand a high-end price. Whether you're a 450 Bushmaster hunter fine-tuning a load or a handloader who values consistency, the Lee micrometer seating die delivers the control you need at a price that makes sense.
| Cartridge | 450 Bushmaster |
| Die Type | Bullet Seating Die |
| Adjustment Type | Precision Micrometer |
| Seating Method | Dead Length |
| Micrometer Divisions | 0.001 inch (one thousandth) |
| Bullet Guide Type | Floating (Reversible) |
This die is designed for 450 Bushmaster cartridges specifically.
The machined and burnished seating stem is designed to seat nearly any point style bullet without damage or marking.
Yes. The floating bullet guide is reversible—simply unthread it and reinstall it flipped to allow seating and crimping simultaneously in a single stroke.
The precision micrometer thimble features laser-engraved divisions representing one thousandth of an inch each, so you adjust and read it like a standard depth micrometer. The die is infinitely adjustable to accommodate different bullet and case combinations.
SKU: 197561460 • Weight: 0.58oz
