Lee Precisiom115658289
Lee Precision 91167 Factory Crimp Die 450 Bushmaster$11.61
Availability: In Stock
The Lee Precision 90590 Factory Crimp Die for 300 Blackout is a specialized reloading die that takes ammunition consistency to the next level. Unlike standard seating dies, this tool applies a firm crimp that holds bullets more securely in the case. If you're loading 300 Blackout ammunition and want tighter shot groups, this die addresses a real problem: loose or inconsistent bullet seating that causes velocity variation and scattered groups downrange.
Here's how it works: the collet mechanism squeezes the case mouth into the bullet's crimp groove with precision. That firm hold means pressure builds uniformly before the bullet moves, creating a more consistent pressure curve throughout the firing sequence. The result is the kind of accuracy improvement that shows up on paper or steel. Interestingly, even bullets without a traditional crimp groove will benefit from this die's approach, making it a versatile choice for handloaders experimenting with different projectiles.
The 90590 fits any standard 7/8"-14 reloading press, so if you're already running a common single-stage, turret, or progressive press, you're ready to go. (You'll need a shellholder, sold separately, sized for your 300 Blackout cases.) This is one of those tools that separates serious reloaders from casual ones—the kind of attention to detail that separates minute-of-angle groups from random strings on a target.
| Model | Lee Precision 90590 |
| Die Type | Factory Crimp Die |
| Caliber | 300 Blackout |
| Thread | 7/8"-14 |
| Compatible Presses | All standard 7/8"-14 single-stage, turret, and progressive presses |
| Shellholder | Not included (sold separately) |
Yes, if your press has a standard 7/8"-14 die hole. That's the common thread size found in almost all current single-stage, turret, and progressive presses. You'll need the appropriate 300 Blackout shellholder, which is available separately.
A standard seating die places the bullet in the case but doesn't apply a firm crimp. The Lee Factory Crimp Die uses a collet to squeeze the case mouth around the bullet with precision, which locks the bullet down and produces a more uniform pressure curve when fired. This results in less velocity variation and tighter groups.
No. While bullets designed with a crimp groove will work perfectly, Lee's testing shows this die improves accuracy even with standard bullets that have no crimp groove at all.
The 90590 includes the crimp die body. A shellholder sized for 300 Blackout is not included and must be purchased separately if you don't already own one.
SKU: 115656370 • Width: 1.7in • Height: 1.5in • Depth: 4.8in • Weight: 0.275oz
Availability: In Stock
The Lee Precision 90590 Factory Crimp Die for 300 Blackout is a specialized reloading die that takes ammunition consistency to the next level. Unlike standard seating dies, this tool applies a firm crimp that holds bullets more securely in the case. If you're loading 300 Blackout ammunition and want tighter shot groups, this die addresses a real problem: loose or inconsistent bullet seating that causes velocity variation and scattered groups downrange.
Here's how it works: the collet mechanism squeezes the case mouth into the bullet's crimp groove with precision. That firm hold means pressure builds uniformly before the bullet moves, creating a more consistent pressure curve throughout the firing sequence. The result is the kind of accuracy improvement that shows up on paper or steel. Interestingly, even bullets without a traditional crimp groove will benefit from this die's approach, making it a versatile choice for handloaders experimenting with different projectiles.
The 90590 fits any standard 7/8"-14 reloading press, so if you're already running a common single-stage, turret, or progressive press, you're ready to go. (You'll need a shellholder, sold separately, sized for your 300 Blackout cases.) This is one of those tools that separates serious reloaders from casual ones—the kind of attention to detail that separates minute-of-angle groups from random strings on a target.
| Model | Lee Precision 90590 |
| Die Type | Factory Crimp Die |
| Caliber | 300 Blackout |
| Thread | 7/8"-14 |
| Compatible Presses | All standard 7/8"-14 single-stage, turret, and progressive presses |
| Shellholder | Not included (sold separately) |
Yes, if your press has a standard 7/8"-14 die hole. That's the common thread size found in almost all current single-stage, turret, and progressive presses. You'll need the appropriate 300 Blackout shellholder, which is available separately.
A standard seating die places the bullet in the case but doesn't apply a firm crimp. The Lee Factory Crimp Die uses a collet to squeeze the case mouth around the bullet with precision, which locks the bullet down and produces a more uniform pressure curve when fired. This results in less velocity variation and tighter groups.
No. While bullets designed with a crimp groove will work perfectly, Lee's testing shows this die improves accuracy even with standard bullets that have no crimp groove at all.
The 90590 includes the crimp die body. A shellholder sized for 300 Blackout is not included and must be purchased separately if you don't already own one.
SKU: 115656370 • Width: 1.7in • Height: 1.5in • Depth: 4.8in • Weight: 0.275oz