Description
The Lee #11 shell plate is the caliber-specific part that lets your Auto Breech Lock Pro or Pro 4000 progressive press cycle .44 Special, .44 Magnum, and .45 Colt. These three cartridges share a rim size, so one plate handles all of them without any extra fiddling. The plate indexes your brass through each station as you work the lever, carrying cases from sizing through seating and crimping with every stroke.
What the #11 Plate Covers
If you shoot .44 Mag out of a Redhawk, plink with lighter .44 Special loads, or feed a Single Action Army in .45 Colt, this one plate has you handled. The number follows the standard Lee shell holder chart, so the same #11 you'd use for these rounds on a single stage carries straight over to the progressive. It's built from steel for the long haul under the pressure a progressive puts on it.
Fitment and Caliber Changes
Worth knowing up front: the Auto Breech Lock Pro and Pro 4000 use their own dedicated shell plates. A plate from a Pro 1000 or Load-Master will not drop in, and vice versa, so make sure your press is in the Breech Lock Pro / Pro 4000 family before ordering. Installing it is quick. You pull the index rod and case ejector, raise the carrier to mid-stroke, spin the plate on, and snug it down clockwise with a quarter-inch hex key. From there you reset your case retainers and cycle the lever to confirm it's advancing right.
Getting the Most From Your Lee #11 Shell Plate
Keeping a spare plate on hand is one of the easiest ways to speed up caliber changes, since the plate is the heart of the swap. Pair it with the matching die set and the correct primer arm for the cartridge you're loading, and you'll have your press running big-bore revolver ammo in short order. A little case lube and a clean plate go a long way toward smooth, consistent indexing session after session.
Key Specifications
- Manufacturer: Lee Precision
- Manufacturer Part Number: 90648
- UPC: 734307906481
- Shell Plate Number: #11
- Compatible Cartridges: .44 Special, .44 Magnum, .45 Colt
- Compatible Presses: Lee Auto Breech Lock Pro / Pro 4000
- Material: Steel
- Country of Origin: United States
- Type: Progressive Press Shell Plate
What’s Included
- Lee #11 Shell Plate (fits Auto Breech Lock Pro / Pro 4000)
Frequently Asked Questions
What calibers does the Lee Pro 4000 Shell Plate #11 work with?
This plate is set up for .44 Special, .44 Magnum, and .45 Colt. Those cartridges share a common rim size, so the single #11 plate handles all three. It follows the same numbering as the standard Lee shell holder chart for these rounds.
Will this shell plate fit my Lee Pro 1000 or Load-Master press?
No. The Auto Breech Lock Pro and Pro 4000 use dedicated shell plates that are not interchangeable with the Pro 1000 or Load-Master. Confirm your press is in the Breech Lock Pro / Pro 4000 family before ordering.
Is the Lee #11 shell plate hard to install?
Not at all. You remove the index rod and case ejector, raise the carrier to mid-stroke, thread the plate on, and tighten it clockwise with a quarter-inch hex key. After that you reset the case retainers and cycle the lever to make sure it indexes correctly.
Do I need anything else to switch calibers besides the shell plate?
The plate is the core of the swap, but a full caliber change also calls for the correct die set for your cartridge and the right primer arm size. Having a spare plate ready makes the whole changeover faster since you're not reconfiguring a single plate each time.




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