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Stoeger Coach Gun

• easy
• Shop tier 2
• medium confidence
• Shotgun
• break action
• side by side
• double barrel
• cowboy action

field strip ~1 min · reassembly ~1 min · detail strip ~20 min

Specifications

Model-specific safety

• A break-action shotgun is cleared by opening the action and looking through both chambers. That is genuinely simpler than a repeater, but it is still two chambers and both must be checked.
• The action opening lever releases the barrels. Support the barrels as the action opens — an unsupported break-action can drop its barrels.
• Ejectors on models fitted with them throw fired cases clear with real force. Keep your face out of the ejection path.
• Never carry a break-action closed on live shells with the action shut unless you are actively shooting. The whole point of the design is that an open action is visibly, unambiguously safe.

Under spring tension

• Hammer springs
• Ejector springs on ejector models

Easily lost parts

Forend · Hinge pin components

Tools

No tools required for the field strip.

Shop difficulty

Shop tier 2 Tier 2 — moderate among shotguns, for the full job: strip to the parts that get coated and put it back together working. 65 listed parts (80 pieces) in a boxlock side-by-side: two hammers on hammer impeller springs, two sears and springs, cocking levers, a top-lever lock spring and a single-trigger equaliser, all on cross pins inside the frame. Strong springs must be controlled and the hammers and sears go back as pairs, but nothing is timed.

Parts: 80 pieces (Complete gun, single trigger extractor model: barrel, forearm, frame and stock assemblies; 65 line items), from Owner's Manual, Coach Gun Side by Side Shotgun, Single Trigger Extractor Model (and Double Defense) — Stoeger Industries (Benelli USA), pp. 3-5 stoegerindustries.com [2].

Bench time: about 50 min to strip, 75 min to rebuild (estimate). Strip of forearm iron, extractor, stock bolt, trigger guard and the boxlock: two hammers on impeller springs, sears, cocking levers, top-lever lock and single-trigger equaliser; rebuild longer for compressing the hammer springs while pinning.

Small parts: 21 pins, 13 springs, 1 detents or plungers (counted from the Stoeger parts list used for partCount (names containing pin/spring; 'Trigger Lock Spherical Pin' counted as the detent and also as a pin))

What comes off for coating

• Barrels / forearm: forearm lock, spring and screws, extractor and limiting screw, choke tubes
• Frame: stock fastening screw and stock, trigger guard pins and guard, hammers, hammer impellers and impeller springs, hammers-and-sears pins, sears and sear springs, cocking levers, actuators and pins, top lever, lever lock and spring, trigger, equaliser, trigger lock and springs, firing pins, springs and fastening nuts

Special tools

• Firing pin nut spanner — Firing pin fastening nuts
• Punch set incl. drift for the trunnion pin — Hammer/sear and lever pins

Known pain points

• Stoeger does not recommend disassembly beyond the owner's manual except for repair; it is a close-tolerance action and lock work should go to a gunsmith. (both)
  Source: Owner's Manual, Coach Gun Side by Side Shotgun, Single Trigger Extractor Model (and Double Defense) — Stoeger Industries (Benelli USA) stoegerindustries.com [2] — “Any disassembly of the side by side shotgun described in the Gun Owner’s Manual in not recommended unless necessary for repair or replacement of worn or damaged parts.”

Fit or check on rebuild

• Top-lever centring and lock-up — The lever may not centre on a new gun by design; it must lock fully and the barrels close without force.
  Source: Owner's Manual, Coach Gun Side by Side Shotgun, Single Trigger Extractor Model (and Double Defense) — Stoeger Industries (Benelli USA) stoegerindustries.com [2] — “that the lock lever may not return to a precise center position when action is closed.”
• Function check: safety, trigger/sear release, disconnector and feeding with dummy rounds — Standard after any detail strip; a mis-assembled sear or disconnector can double or fail to fire.

This is Pew-Takedown's rating, not the manufacturer's. How tiers are rated. Forum reports are owners' experience, not specifications.

Procedures

Torque specifications

Notes: The manufacturer's documents give no torque value. They say: "Over tightening of stock bolt may adversely affect proper functioning of gun." (Owner's Manual, Coach Gun Side by Side Shotgun, Single Trigger Extractor Model (and Double Defense), PDF p. 9)

Function check

• Verify both chambers are empty before each check.
• Close the action and confirm it locks shut with the top lever returning toward centre.
• Engage the safety and press each trigger in turn. Neither hammer should fall.
• Disengage the safety and press each trigger. Each should release its hammer.
• On a single-trigger gun, confirm the barrel selector works and that the trigger switches barrels after the first release.
• Open the action and confirm the extractors or ejectors lift or throw snap caps as expected.
• Confirm the forend is securely latched.

Maintenance

Lubrication points

• Hinge pin and barrel hook
• Locking lug and bite surfaces
• Cocking rods or levers
• Forend catch

Cleaning notes

The hinge pin and locking lug carry all the firing stress on a break action, and a dry or worn hinge is what makes a double gun go "off face". Keep those surfaces clean and lightly greased, and have the gun checked if it begins to feel loose when closed.

Suggested inspection interval: roughly every 2000 rounds. This is a general guideline, not a manufacturer specification.

Wear parts to inspect

Hinge pin and barrel hook · Locking lug · Firing pins · Ejector springs · Forend catch

Common issues

Also covers

The procedures above are reported to apply to: Stoeger Coach Gun Supreme · Stoeger Double Defense · Most side-by-side break-action shotguns follow this pattern. Verify against the manual for your specific model.

Similar manual of arms

• Mossberg 500 / 590

Sourcing