# RCBS Rock Chucker Supreme Single Stage Reloading Press vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press: specs and price compared

A sourced, side-by-side comparison of the RCBS Rock Chucker Supreme Single Stage Reloading Press (RCBS) and Frankford Arsenal M-Press Coaxial Single Stage Reloading Press (Frankford Arsenal) among reloading presses. RCBS Rock Chucker Supreme Single Stage Reloading Press is the cheaper of the two at $259.99.

## Side by side

| Spec | RCBS Rock Chucker Supreme Single Stage Reloading Press | Frankford Arsenal M-Press Coaxial Single Stage Reloading Press |
| --- | --- | --- |
| US price | $259.99 | $281.99 |
| Brand | RCBS | Frankford Arsenal |
| Press type | single stage | single stage, co-axial |
| Number of stations | 1 | 1 |
| RAM diameter (in) | 1 | — |
| Rounds per hour | — | — |
| Priming system | off-press, separate hand-priming tool required (no integrated priming arm standard) | off-press, not integrated (separate priming tool required) |
| Frame material | cast iron, O-frame | cast iron with dual guide rods |
| Shellplate turret compatibility | standard 7/8-14 threaded dies, 4.25 in. loading window for magnum-length cartridges | universal dial-adjustable shell holder (no separate shell holders needed); 3 included interchangeable die blocks; free-floating co-axial die/shellholder alignment |
| Mounting footprint | bench-mount, 4-hole pattern | bench-mount |

## Key differences

- Press type: RCBS Rock Chucker Supreme Single Stage Reloading Press single stage vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press single stage, co-axial
- Priming system: RCBS Rock Chucker Supreme Single Stage Reloading Press off-press, separate hand-priming tool required (no integrated priming arm standard) vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press off-press, not integrated (separate priming tool required)
- Frame material: RCBS Rock Chucker Supreme Single Stage Reloading Press cast iron, O-frame vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press cast iron with dual guide rods
- Shellplate turret compatibility: RCBS Rock Chucker Supreme Single Stage Reloading Press standard 7/8-14 threaded dies, 4.25 in. loading window for magnum-length cartridges vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press universal dial-adjustable shell holder (no separate shell holders needed); 3 included interchangeable die blocks; free-floating co-axial die/shellholder alignment
- Mounting footprint: RCBS Rock Chucker Supreme Single Stage Reloading Press bench-mount, 4-hole pattern vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press bench-mount

## Sources

- RCBS Rock Chucker Supreme Single Stage Reloading Press: https://shop.rcbs.com/rock-chucker-supreme-press/ (shop.rcbs.com, verified 2026-08-11)
- Frankford Arsenal M-Press Coaxial Single Stage Reloading Press: https://www.frankfordarsenal.com/presses-and-scales/presses/reloading-presses/m-press-coaxial-reloading-press/1097879.html (frankfordarsenal.com, verified 2026-08-11)

Canonical: https://frontdeskreview.com/gear/reloading-presses/rcbs-rock-chucker-supreme-vs-frankford-arsenal-m-press/
Cite: Per The Front Desk Review, RCBS Rock Chucker Supreme Single Stage Reloading Press ($259.99) vs Frankford Arsenal M-Press Coaxial Single Stage Reloading Press ($281.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/reloading-presses/rcbs-rock-chucker-supreme-vs-frankford-arsenal-m-press/
License: CC BY 4.0.