Bench 1

Resizing

Restore cartridge geometry after firing. Every round starts here.

Bench 2 — Brass Prep →
New to reloading? Start with Basics only. · Already reloading? Use Basics as a refresher, then dig into Control and Tune.
Basics
What you're doing and why
When you fire a round, the brass expands to fill your chamber. Resizing pushes it back to SAAMI spec — the industry standard for safe chambering in any rifle chambered in that cartridge.
1
Lube your brass

Apply a thin, even coat of case lube to the outside of each case before running it into the die. Too little and the case sticks. Too much and you'll get hydraulic dents in the shoulder. A lube pad or aerosol works — just keep it consistent.

You'll need Case lube (Hornady One-Shot or Imperial Sizing Wax)
2
Run the case into the die

A full-length sizing die reforms the entire case — body, shoulder, and neck — back to SAAMI spec. Run each case fully into the die until the shellholder contacts the die body. Consistent contact means consistent results.

You'll need Full-length sizing die + shellholder for your caliber
3
Remove and clean

Extract the case from the die. Wipe off excess lube — especially from the shoulder area. Lube residue on a finished round can affect primer ignition and leave residue in your chamber.

4
Inspect before moving on

Check for visible defects — case head separation, neck cracks, split case mouths. Any of these means the case is done. Don't reload compromised brass. When in doubt, discard it.

Control
What you're controlling
Two variables at Bench 1 require measurement — not just action. Shoulder bump and neck diameter both directly affect how your round chambers and how tightly it holds the bullet.
C1
Control Point 1
Shoulder Bump

The shoulder is the angled transition between the case body and neck. Firing pushes it forward. Resizing pushes it back. Your target: bump the shoulder back exactly .002" from the fired position — enough to ensure reliable chambering, not so much that you're working the brass harder than necessary.

You'll need Shoulder bump gauge matched to your caliber + calipers
C2
Control Point 1
Neck Diameter

Neck tension is how tightly the case neck grips the bullet after seating. It's controlled by the resized neck diameter. Consistent neck tension means consistent bullet release and more consistent velocity.

You'll need Bushing neck die + calipers to measure resized neck OD
Tune
V1 status
Neck tension is a control point in Qual8 V1 — you measure it and hold it constant. In future versions it becomes an active tune variable mapped to velocity data.
T1
Neck Tension as a Tune Variable

In V1 of the Qual8 app, neck tension is captured as a control point — you measure it and hold it constant. In future versions it becomes an active tune variable mapped to velocity data.

Logbook Record Layer

What to record at Bench 1

Fired shoulder measurement, resized shoulder measurement, confirmed bump value, shellholder used (if Firm Contact Method), resized neck OD (if using bushing die), bushing size selected, any anomalies (stuck cases, dents, unusual resistance). This data feeds Bench 7.

Bench walkthrough
Watch the bench in practice
When the video is ready, the walkthrough will appear in this framed area.
Bench 1
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Resizing walkthrough — die setup, shoulder bump measurement, and neck sizing.
All 8 Benches Next → Bench 2 — Brass Prep