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The Lee Pro 4000 takes the brand's progressive platform and sets it up specifically for .223 Rem and 5.56 NATO, two of the most popular rifle rounds going. It's a genuine four-station progressive, which means a case can be sized, charged, seated, and crimped as you work through the stations with each pull of the handle. The fourth station is the real upgrade over the older Pro 1000, giving you room to run a factory crimp or post-sizing step without giving anything up elsewhere. For folks feeding an AR-15 or a bolt gun that eats a lot of brass, this is a straightforward way to keep the ammo can full.
The heart of this press is Lee's Breech Lock quick-change system, which runs in all four stations. You set your dies into the colored bushings once, then swap them in and out by hand without re-tuning each time. The modular design is a big part of the appeal too, since you can run it with as much or as little automation as you want. Flip the auto-index off and it works nicely as a single station for case prep like depriming before tumbling, then turn everything back on when you're ready to run a full production session.
Set up right, this press is comfortable in the few-hundred-rounds-per-hour range, which is plenty for most rifle shooters who aren't running a commercial operation. The Universal Case Feeder keeps brass flowing, the Auto-Drum Powder Measure handles charges, and the Safety Prime system seats primers on the press and plays nice with all brands. It's also a solid pick for working mixed or well-used range brass thanks to that extra crimp and post-size station.
A quick heads up for newer reloaders: a progressive like this rewards patience during setup. Spend the time dialing in your dies and finding your rhythm on the handle, and the Pro 4000 pays you back with consistent, repeatable rifle ammo for a long time.
Yes. This kit is set up for .223 Remington and 5.56 NATO, which share the same case dimensions for reloading purposes. The included die set and shell plate are configured for that cartridge right out of the box.
It can be, but go in knowing that any progressive press has a learning curve. Plan to spend time dialing in your dies and finding a steady rhythm on the handle before you expect smooth, high-volume runs. The upside is the modular design lets you turn off the auto-index and run it like a single station while you learn the ropes.
With the press set up correctly and the case feeder running, a comfortable pace lands in the few-hundred-rounds-per-hour range. Your actual speed depends on your cadence and how much of the automation you're using. For most rifle shooters keeping an AR or bolt gun fed, that's more than enough throughput.
The big difference is the fourth station, which the Pro 1000 doesn't have. That extra spot lets you add a factory crimp or post-sizing step, which is handy when you're loading well-used or mixed range brass. The Pro 4000 also uses the Breech Lock quick-change bushing system across all four stations.
| UPC | 734307915513 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 91551 |
| Shipping Weight | 13.86 |
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