Steel Challenge Roundabout (SC-108): Layout, Dimensions and Strategy

Two near, two far, and a stop plate tucked in the middle at 30 feet. Every official dimension, current peak times, and the route that keeps it simple.
ERG Crew
Updated September 9, 2026

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Roundabout looks like a jumble and is actually a box: two plates near, two plates far, and the stop plate sitting inside the pattern rather than off to one side. It is the stage where the stop plate’s position — only 2 feet right of the center line, at 30 feet — makes almost any sensible route work, so long as you pick one and commit.

The official layout

Four 12-inch plates and one 12-inch stop plate — every target on the stage is the same size. One 3′×3′ box. Five strings, best four counted.

15 ft30 ft45 ft3′ x 3′12″ · 45 ft9 ft left · top 5′12″ · 45 ft8 ft right · top 5′12″ · 21 ft2 ft left · top 5′12″ · 21 ft8 ft right · top 5′STOP · 12″ · 30 ft2 ft right · top 5′SC-108 · Roundabout

Our own scale plan of SC-108 · Roundabout, drawn from the dimensions published in Appendix B of the SCSA Competition Rules, edition 2026-03. Distances are measured from the shooting box; offsets are from the center line; heights are to the top of the target.

Target Size Distance from the box Offset from center Height to top
12″ plate 12 inches 21 ft 2 ft left 5 ft
12″ plate 12 inches 21 ft 8 ft right 5 ft
12″ plate 12 inches 45 ft 9 ft left 5 ft
12″ plate 12 inches 45 ft 8 ft right 5 ft
12″ stop plate 12 inches 30 ft 2 ft right 5 ft

What a 100% run looks like here

The stage peak is the aggregate of your 4 counted strings. Divide it by 4 and you get a par time you can set on a shot timer today.

Division Stage peak Per string
Rimfire Rifle Optics 7 s 1.75 s
Rimfire Pistol Optics 7.5 s 1.88 s
PCC Optics 7.5 s 1.88 s
Open 8.5 s 2.12 s
Carry Optics 9.75 s 2.44 s
Production 10 s 2.50 s
Single Stack 10.5 s 2.62 s
Iron Sight Revolver 11 s 2.75 s

Peak times verified against SCSA’s live classification system on September 8, 2026. The full 16-division table is on our peak times page.

Every target is the same

Roundabout is the only stage where all five targets are 12-inch plates at the same height. There is no size cue, no rectangle to make one target obviously easier. What varies is only distance and angle: a near pair at 21 feet, a far pair at 45 feet, and the stop plate at 30 feet, nearly straight ahead.

That uniformity is why it is one of the fastest stages on the board for most divisions, and it is also why shooters lose track of which plate they have already taken.

How to shoot it

  • Take the two far plates before the two near ones. The far pair at 45 feet needs a better sight picture; give it your steadiest moment. The near plates at 21 feet are almost point-and-press.
  • Work around the pattern, not across it. Far-left, far-right, near-right, near-left — or the mirror — then the stop plate. Circling keeps every transition small; cutting diagonally through the middle makes them all large.
  • Note that the right-hand plates line up. The near-right and far-right plates are both 8 feet right of the center line. That vertical stack is a pure depth change with no lateral movement, which is the cheapest transition on the stage. Build your route so you use it.
  • The stop plate is 2 feet right of center at 30 feet. It is close to everything. Finish wherever your route naturally ends and come straight in.

The common mistakes

  • Losing count. Five identical plates and no size cue. Pick a route and shoot the same route every string, all five times.
  • Hitting the stop plate early by accident. It sits inside the pattern, near the middle, at a mid distance. A sloppy transition through the center of the array can find it — and any standard plate still standing when it falls is a 3-second miss.
  • Shooting the far pair last. You arrive at the hardest shots with the most accumulated movement and the most time pressure.

The other seven stages

Same five targets, eight different problems. The full set, plus the data behind them:

Sources

SCSA Competition Rules, edition 2026-03, effective March 1, 2026 — Appendix B (stage diagrams), rule 2.1 (target height) and the chapters cited inline. Peak times from SCSA’s live classification system, retrieved September 8, 2026. The diagram above is our own drawing made from the published dimensions. If a measurement here does not match the stage as your club sets it, the rulebook and your match director are the authority — and we would like to know about it.

Updated as of the date above

The date under the headline is the last time we checked this page against its sources — not the day it was first written. Rulebooks get amended, regulations change and season dates move, so we review these guides on a regular cycle and re-stamp the date whenever we revise one. If you find something here that has changed before we caught it, email [email protected] or tell us at the counter; we will verify it against the source and correct it.

From the shop in Steamboat

We write these because people ask us at the counter. Everything in them we either sell, service, or shoot ourselves — and if you'd rather talk it through than read about it, come in.

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ERG Crew

The counter staff and gunsmiths at Elk River Guns in Steamboat Springs, Colorado. We write the guides we'd give you in person: Colorado season dates and regulations, platform and gear explainers, and straight answers about what the law actually says. We cite our sources and we don't give legal advice.
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