Lee Six Pack Pro: the progressive press that will take your reloading to the nex

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1 | Concept and place in the Lee range

Lee Precision already offered single-stage (Breech Lock), semi-progressive (Pro 1000) and high-volume progressive (Load-Master) presses. The Six Pack Pro sits right in the middle:

  • Faster and more automatic than a single-stage.

  • Less bulky and more affordable than a Load-Master.

It targets shooters who fire hundreds—rather than thousands—of rounds per week and demand single-stage concentricity with progressive cadence.

2 | Structure and materials

The O-frame combines high-density steel with forged-aluminum stiffeners:

  • Steel delivers the rigidity needed to resize magnum cases without flex.

  • Aluminum trims weight (≈ 8 kg), making it easy to mount on modest benches.

  • A powder-coat epoxy finish withstands aggressive lubes and brass chips.

Footprint: 40 × 30 × 25 cm. It fits a 60 cm-deep bench and bolts down with two front screws plus a rear stud to kill vibration.

3 | The six stations—what each one does

  1. Decap—spent-primer removal

  2. Lube and full-length or neck resize

  3. Trim or case-prep (optional)

  4. Neck clean/deburr

  5. Bullet seat with micrometric depth dial

  6. Crimp and automatic eject into the finished-round tray

Key benefit: the case never leaves the center-line; the entire shell-plate rotates, holding coaxiality to under 0.01 mm.

4 | Lever and kinematics

The C-style handle adds 40 ° of throw over classic Lee presses:

  • More mechanical advantage → less kg-force to reform work-hardened brass.

  • Smoother stroke thanks to twin ball bearings and minimal axial friction.

The grip is coated with textured polyurethane for traction—even in nitrile gloves.

5 | Quick-Change die system

Caliber swaps used to be the Achilles’ heel of progressives.
With the Six Pack Pro:

  • Unscrew a Breech Lock bushing.

  • Drop in the pre-set die.

  • Tighten a quarter-turn.

Average time: 25 seconds for the entire die set. No depth lost, no wrench required.

6 | Caliber compatibility

Firearm type Sample calibers Note
Pistol 9 mm Luger, .40 S&W, .45 ACP Short case feeder included
Revolver .38 Special, .357 Magnum Firm roll crimp on station 6
Rifle .223 Rem, .308 Win, 6.5 Creedmoor External luber recommended
Long magnum .300 Win Mag, .338 Lapua Needs optional 50 mm ram extension

All standard 7⁄8-14 TPI dies from Lee, Hornady and Dillon thread straight in.

7 | Optimised workflow

Plain-text overview of the routine:
Feed 100 clean cases into the feeder. One full cycle takes around 30 seconds, yielding a finished round every turret click. After ten minutes you have 200 perfectly uniform cartridges, ready for a case gauge before final priming.

8 | Official and recommended accessories

  • High-capacity feeder tubes (250 cases)

  • Automatic Priming System—vibratory tray, wide plate

  • Shell plates #1–#20 (covering most common calibers)

  • 50 mm ram extension for long-body magnums

  • Case collator that loads tubes hands-free

9 | Preventive maintenance

  1. Oil the lever pivot every 1 000 cycles with light machine oil.

  2. Wipe turret raceways; add a drop of synthetic grease.

  3. Replace the ejector spring if tension fades (> 20 000 rounds).

  4. Check bench-mount bolts each session to prevent play.

  5. Store the press covered; epoxy resists humidity, but coat the ram with anti-rust oil.

10 | Safety and quality control

  • Keep a powder check handy to confirm every case receives the correct charge.

  • Mount an LED lamp over station 4 to see powder height before seating.

  • Inspect every 50 rounds: verify overall length with calipers and neck diameter with a micrometer.

11 | Internal Lee comparison

Feature Six Pack Pro Pro 1000 Load-Master
Stations 6 3 5
Throughput /h 500 250 700
Caliber swap time < 30 s ~ 5 min ~ 4 min
Weight 8 kg 5 kg 13 kg

The Six Pack Pro wins if you need balanced volume and budget yet still want six full operations.

12 | Recommended installation steps

  1. Bolt the press with M10 hardware to a ≥ 30 mm thick board.

  2. Set handle height: mid-slot for pistols, top slot for magnum rifles.

  3. Thread dies 1-6, hand-tighten, lock with the jam nut.

  4. Fit the shell plate and grease its center post.

  5. Calibrate the auto-primer: 5–7 ° tray angle for steady flow.

  6. Load cases and bullets; run five test rounds before production.

13 | Conclusion

The Lee Six Pack Pro melds a steel backbone, six synchronised stations and an ingenious Quick-Change system that slashes setup downtime. It’s perfect for shooters who outgrow a single-stage yet don’t want the expense or complexity of an industrial progressive. Mounted on a solid bench and paired with a reliable case gauge, it delivers uniform cartridges, rock-solid concentricity and double the throughput of traditional presses—an intelligent upgrade for accuracy-minded reloaders.


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