Dillon Precision
Dillon Precision RL550C Progressive Reloading Press
$590
Best Reloading Presses · head-to-head
Dillon Precision RL550C Progressive Reloading Press vs RCBS Rock Chucker Supreme Single Stage Reloading Press
A sourced, side-by-side comparison. RCBS Rock Chucker Supreme Single Stage Reloading Press is cheaper at $259.99. Every spec and price links to its source.
RCBS
RCBS Rock Chucker Supreme Single Stage Reloading Press
$259.99Cheaper
Which is better: the Dillon Precision RL550C Progressive Reloading Press or RCBS Rock Chucker Supreme Single Stage Reloading Press?
On the specs we track, they're closely matched. The RCBS Rock Chucker Supreme Single Stage Reloading Press is the cheaper at $259.99.
See Dillon Precision RL550C Progressive Reloading Press on Amazon See RCBS Rock Chucker Supreme Single Stage Reloading Press on Amazon
As an Amazon Associate we earn from qualifying purchases. Prices verified at capture; live price may differ.
Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Dillon Precision RL550C Progressive Reloading Press | RCBS Rock Chucker Supreme Single Stage Reloading Press |
|---|---|---|
| US price | $590 | $259.99 |
| Brand | Dillon Precision | RCBS |
| Released | — | — |
| Press type | progressive, manual indexing | single stage |
| Number of stations | 4 | 1 |
| RAM diameter (in) | — | 1 |
| Rounds per hour | 400-600 | — |
| Priming system | on-press, automatic primer feed seated at station 1 | off-press, separate hand-priming tool required (no integrated priming arm standard) |
| Frame material | aluminum alloy frame with steel toolhead and linkage | cast iron, O-frame |
| Shellplate turret compatibility | quick-change steel shellplate, caliber-specific; over 160 cartridges supported via Dillon conversion kits | standard 7/8-14 threaded dies, 4.25 in. loading window for magnum-length cartridges |
| Mounting footprint | bench-mount, 4-bolt pattern; compatible with optional Dillon Strong Mount | bench-mount, 4-hole pattern |
Sources — Dillon Precision RL550C Progressive Reloading Press: dillonprecision.com (verified 2026-08-11). RCBS Rock Chucker Supreme Single Stage Reloading Press: shop.rcbs.com (verified 2026-08-11).
What's the difference between the Dillon Precision RL550C Progressive Reloading Press and RCBS Rock Chucker Supreme Single Stage Reloading Press?
Where the two actually differ on the specs we track (6 of 8). Matching specs are omitted.
- Press type: Dillon Precision RL550C Progressive Reloading Press progressive, manual indexing vs RCBS Rock Chucker Supreme Single Stage Reloading Press single stage
- Number of stations: Dillon Precision RL550C Progressive Reloading Press 4 vs RCBS Rock Chucker Supreme Single Stage Reloading Press 1
- Priming system: Dillon Precision RL550C Progressive Reloading Press on-press, automatic primer feed seated at station 1 vs RCBS Rock Chucker Supreme Single Stage Reloading Press off-press, separate hand-priming tool required (no integrated priming arm standard)
- Frame material: Dillon Precision RL550C Progressive Reloading Press aluminum alloy frame with steel toolhead and linkage vs RCBS Rock Chucker Supreme Single Stage Reloading Press cast iron, O-frame
- Shellplate turret compatibility: Dillon Precision RL550C Progressive Reloading Press quick-change steel shellplate, caliber-specific; over 160 cartridges supported via Dillon conversion kits vs RCBS Rock Chucker Supreme Single Stage Reloading Press standard 7/8-14 threaded dies, 4.25 in. loading window for magnum-length cartridges
- Mounting footprint: Dillon Precision RL550C Progressive Reloading Press bench-mount, 4-bolt pattern; compatible with optional Dillon Strong Mount vs RCBS Rock Chucker Supreme Single Stage Reloading Press bench-mount, 4-hole pattern