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Twilight Biathlon

Rules of the Match.

The sections below govern all Twilight Biathlon events. The stage brief delivered by the RO supersedes any previously posted stage information. Safety violations are not subject to arbitration.

Section 1

Safety Rules

1.1 Competitor Responsibility

It is the competitor’s responsibility to read and understand the rules and stage briefings and to agree to be bound by them while participating in the event.

1.2 Basic Firearms Safety Rules

The following fundamental safety rules apply at all times:

  • 1.2.1 Treat all guns as if they are always loaded.
  • 1.2.2 Never let the muzzle cover anything you are not willing to destroy.
  • 1.2.3 Keep your finger off the trigger until your sights are on target and you have made a positive identification.
  • 1.2.4 Be sure of your target, what is in front of it, and what is behind it.

1.3 Cold Range

COLD RANGE: All events operate on a cold range. Firearms shall be unloaded at all times except when directly under the supervision of a Range Officer (RO) during an active Course of Fire (COF).
  • 1.3.1 Rifles and PCCs shall be transported between stages with detachable magazines removed and chamber empty. Slings are strongly recommended for hands-free carrying during the run.
  • 1.3.2 Pistols shall remain holstered at all times between stages. Chamber shall be empty; a magazine may be inserted.
  • 1.3.3 Competitors shall not handle, manipulate, or load any firearm outside of the active shooting stage under supervision of an RO. Any such action observed between stages is grounds for Match DQ under Section 9.

1.4 Eye and Ear Protection

Eye and ear protection must be worn at all times while at a shooting stage. Ear protection is mandatory from the “Make Ready” command through “Range is Clear.” Electronic hearing protection is strongly recommended for ROs and competitors to maintain situational awareness at night.

1.5 Minimum Target Illumination Standard

  • 1.5.1 A competitor shall not engage any target unless that target has been positively identified using available lighting or night vision before the trigger is pressed. Firing at sound, movement, or assumed target location is prohibited and constitutes grounds for immediate Match DQ under Section 9.
  • 1.5.2 ROs shall visually confirm that the shooting lane is clear and downrange is safe before issuing the “Make Ready” command at each stage.

1.6 Abandoning Firearms

  • 1.6.1 During a COF, a competitor may be required to abandon a firearm to transition to another. A competitor shall not engage targets with more than one gun in their hands at any time.
  • 1.6.2 Designated firearm abandonment locations will be identified during the stage brief. These locations shall be clearly marked with high-visibility markers visible under white light and IR illumination.
  • 1.6.3 Firearms shall be abandoned in one of the following conditions only: MANUAL SAFETY ENGAGED, or EMPTY — empty chamber with no live rounds in the firearm or attached magazine.
  • 1.6.4 Abandoned firearms shall be placed muzzle-forward into the designated receptacle or laid flat in the designated zone, pointed downrange. An abandoned firearm pointing uprange or sideways is a safety violation and the RO will call “STOP.”
Section 2

Range Commands and Procedures

2.1 Make Ready

The RO will issue the “Make Ready” command and supervise the competitor through firearm preparation.

2.2 Are You Ready / Standby

After “Make Ready,” the RO will accompany the competitor to the start position and issue “Are You Ready” followed by “Standby” and timer activation. Silence from the competitor indicates readiness. If not ready, the competitor shall state “No” or “Not Ready.”

2.3 STOP

Any RO may issue “STOP” at any time. The competitor shall immediately cease firing, stop moving, and await further instruction.

2.4 Unload and Show Clear

Upon completion of the stage, the competitor shall lower the firearm, present it muzzle downrange with magazine removed and chamber empty for RO inspection. The RO will supervise safe unloading of all firearms used on the stage.

2.5 Range is Clear

Issued only after all firearms are confirmed clear. Officials and competitors may move downrange only after this declaration.

2.6 Stage Brief Supersedes Posted Information

The stage brief delivered by the RO supersedes any previously posted stage information.

2.7 Competitor Self-Sufficiency

Competitors must carry all required equipment for the full course at the start of their run. No resupply at vehicles is permitted.

2.8 Stage Wait Time and Stopwatch

When a competitor arrives at a stage and another competitor is actively running the COF, the arriving competitor shall:

  • 2.8.1 Proceed to the Stage Waiting Area (SWA), at least 5 yards behind the active shooting line.
  • 2.8.2 Start their wait timer on their personal stopwatch immediately upon entering the SWA.
  • 2.8.3 Turn off all active lights except chemical lights (chem-lights) upon entering the SWA (see Section 12).
  • 2.8.4 Remain in the SWA with all firearms unloaded and holstered/slung until invited to the stage by the RO.
  • 2.8.5 The RO will record competitor wait time upon exit of the SWA. Wait time will be deducted from run time. RO log is authoritative in the event of dispute.

2.9 Equipment Carry

The competitor will carry all personal equipment throughout each stage unless otherwise stated in the stage brief.

Section 3

Firearms

3.1 Serviceability

All firearms must be serviceable and safe. ROs may inspect any firearm at any time. Firearms declared unsafe shall be withdrawn until repaired to the satisfaction of the RO, Range Master (RM), or Match Director (MD).

3.2 Malfunction Repair

A competitor may attempt to repair a malfunctioning firearm under RO supervision, without outside assistance, on run time. Wait time does not apply.

3.3 Fire Mode

Firearms capable of select-fire or full-auto may only be fired in semi-automatic mode.

3.4 Slings

A sling or retention device is required on all rifles and PCCs. The firearm must remain attached to the competitor’s body during transitions and movement. Unslung rifles carried in-hand between stages are prohibited.

Section 4

Holsters and Equipment

4.1 Handgun Holsters

  • 4.1.1 Holsters must safely retain the handgun during vigorous movement including running on uneven terrain.
  • 4.1.2 Holster material must be rigid and completely cover the trigger on all semi-automatic pistols and the cylinder on revolvers.
  • 4.1.3 Shoulder holsters, belly bands, magazine pouch holsters, cross-draw chest holsters, and pocket holsters are prohibited.
Section 5

Ammunition

5.1 Prohibited Ammunition

Prohibited: Tracer, incendiary, armor-piercing, and steel/tungsten core ammunition. Violations may result in penalties up to Match DQ and reimbursement for target and/or property damage. Steel-cased ammunition with non-steel projectiles is permitted.

5.2 Allowed Pistol / PCC Calibers

Only the following pistol and PCC calibers are permitted:

  • 5.2.1 .380 ACP
  • 5.2.2 9mm
  • 5.2.3 .40 S&W
  • 5.2.4 .45 ACP
  • 5.2.5 10mm
  • 5.2.6 .38 Special
  • 5.2.7 .357 Magnum

5.3 Allowed Rifle Calibers

Only the following rifle calibers are permitted:

  • 5.3.1 5.45×39mm
  • 5.3.2 5.56×45mm / .223 Remington
  • 5.3.3 7.62×39mm
  • 5.3.4 .300 AAC Blackout
  • 5.3.5 FN 5.7×28mm
  • 5.3.6 Larger calibers may be allowed for specific events at Match Director discretion.

5.4 Projectile Type

All pistol and rifle cartridges shall fire a single projectile only. No shot shells or multi-projectile loads.

Section 6

Targets

6.1 Stage Brief Specifies Targets

The stage brief will specify target type, count, required firearm for each target, and required hit count.

6.2 Competitor Responsibility

Competitors must listen to or read the stage brief and ask questions before “Make Ready” is issued. Engaging a target with the wrong firearm is subject to procedural penalties or Stage DQ.

6.3 Night Target Standards

  • 6.3.1 All targets will be high-visibility contrast: white targets with dark backstops, or black targets with white backers. Targets will be visually distinguishable from backstops under white light and IR illumination.
  • 6.3.2 Target faces will not be illuminated by stage lighting. Competitors are responsible for illuminating targets using personal lighting systems.
  • 6.3.3 Target distances: Rifle/PCC targets: 5–150 yards. Pistol targets: 5–50 yards.
Section 7

Scoring

7.1 Appeals

Scoring disputes may be appealed to the stage RO. If unresolved, the MD or RM will review after the competitor’s run but before results are posted. Run time continues during appeals at stages.

7.2 Shoot / Run Weighting

Shoot and run time weighting is 50/50.

7.3 Target Neutralization

Targets must be neutralized to avoid time penalties.

7.4 Neutralization Standards

  • 7.4.1 Paper/cardboard: Required number of hits within the scored zone/perforations.
  • 7.4.2 Steel knockdown (KD) plates: Must fall to score.
  • 7.4.3 Static plates: Must be struck the required number of times per engagement.
  • 7.4.4 ROs shall call “HIT” audibly for all non-visually-obvious target hits (static steel). At night, ROs shall also use a secondary visual signal (tap on the shoulder or back) when audible calls may be masked by hearing protection. Competitors with electronic ear pro may still miss calls in ambient noise.
Section 8

Stage Penalties

8.1 Time Penalties

All stage penalties are assessed as fixed time additions to the competitor’s stage time.

  • 8.1.1 Failure to Neutralize (FTN): one hit when multiple hits are required.
  • 8.1.2 No-Shoot: a hit on a designated friendly or no-shoot target.
  • 8.1.3 Procedural violation: failure to follow stage procedures, shooting from incorrect position, shooting under walls, or failing to engage targets in required order.
Penalty Time Added
Failure to Neutralize (FTN)20–60 sec (stage-dependent)
No-Shoot hit20–60 sec (stage-dependent)
Procedural violation20–60 sec (stage-dependent)
Lighting violation in Stage Waiting Area30 sec per occurrence
Stage DQ (negligent discharge, muzzle break, etc.)No score for stage
Match DQ (safety violations, cheating, etc.)Full disqualification from event
Section 9

Match Disqualifications

9.1 Non-Arbitrable Safety Violations

Safety violations are not subject to arbitration.

9.2 Match DQ Causes

A Match Disqualification results in immediate removal from the event.

  • 9.2.1 Cheating
  • 9.2.2 Intentionally cutting the course
  • 9.2.3 Altering course, COF, or scorecards
  • 9.2.4 Unsportsmanlike conduct
  • 9.2.5 Intentional or unintentional discharge aimed over a berm or significantly off-target in an unsafe direction
  • 9.2.6 Any competitor found with a round chambered in any firearm while not under direct RO supervision
  • 9.2.7 A competitor impaired by drugs or alcohol and deemed unsafe by an RO or MD
  • 9.2.8 Firing at a target without positive visual identification. Discharging at sound, movement, or assumed position in the dark is an immediate Match DQ.
  • 9.2.9 Deliberate use of lighting to blind, interfere with, or damage the night-vision equipment of another competitor. This includes white light activation in direction of a NV competitor on-course. (See Section 12 for NV lighting protocol.)
Section 10

Stage Disqualifications

10.1 Stage DQ Causes

A Stage Disqualification (SDQ) results in no score for the stage.

  • 10.1.1 Negligent Discharge not in the direction of a target. Rule 9.2.5 still applies. Includes:
    • 10.1.1.1 A shot during loading, reloading, or unloading after “Make Ready” and before “Range is Clear.”
    • 10.1.1.2 A shot during malfunction remediation, firearm transfer between hands, or movement between positions.
  • 10.1.2 Dropping or losing control of a loaded firearm at any time after “Make Ready” and before “Range is Clear.”
  • 10.1.3 Breaking the 180-degree safety plane or designated safe direction at any time.
  • 10.1.4 Muzzle sweeping any part of the competitor’s own body during a COF.
  • 10.1.5 Engaging pistol-designated targets with a rifle caliber.
  • 10.1.6 Firing after the “STOP” command is issued, after a stage is declared complete, or before the timer starts.
Section 11

Appeals

11.1 Appeals Process

  • Decisions are initially made by the stage RO.
  • If disputed, the RM or MD makes the final ruling. Run time continues during appeals at the stage.
  • The RO has final authority on all HIT/MISS calls.
  • Safety violations are not subject to arbitration.
Section 12

Lighting

12.1 Permitted Lighting — Standard Divisions (2Gun & PCC)

  • 12.1.1 Weapon-mounted lights, illuminators, and non-IR lasers are permitted and recommended.
  • 12.1.2 Competitors may use any personal lighting (headlamps, handheld flashlights) at shooting stages and during course navigation.
  • 12.1.3 Weapon-mounted lights shall not be used as the primary navigation tool between stages with the muzzle pointed at the course/trail. The firearm must be slung or holstered during navigation. A separate headlamp or handheld light is required for course navigation.

12.2 Stage Waiting Area Lighting Discipline — All Divisions

  • 12.2.1 When a competitor arrives at a stage and another competitor is actively running the COF, the arriving competitor shall turn off all personal lights except chemical lights upon entering the Stage Waiting Area (SWA).
  • 12.2.2 Stage lighting, RO lights, and the active shooter’s lights are the only permitted light sources during an active COF.
  • 12.2.3 Failure to comply with 12.2.1 will result in a 30-second stage time penalty assessed to the non-compliant competitor for each occurrence.

12.3 NV Division Lighting Rules

White light is prohibited for NV competitors during NV event nights, except for admin, safety reason, medical emergencies, or when directed by an RO.
  • 12.3.1 NV competitors may use night-vision devices (NVDs), IR weapon-mounted illuminators, and IR lasers during shooting stages and course navigation.
  • 12.3.2 White light is prohibited for NV competitors during the NV event nights, except for admin, safety reason, medical emergencies, or when directed by an RO.
  • 12.3.3 Non-NV personnel (ROs, staff) at NV-night stages shall use red-filtered lights or dim white light to preserve competitor night adaptation. Flashlights used for scoring/admin shall be red-filtered or directed away from competitors.
  • 12.3.4 NV Lighting Violation Enforcement:
    • First offense: Verbal warning issued by the RO.
    • Second offense: The competitor is administratively moved from the NV division to the corresponding white-light division (NV 2Gun → 2Gun; NV PCC → PCC). Their scores are transferred and scored under white-light division rules for remaining stages.
Section 13

Medical and Emergency Procedures

13.1 Medical Emergency

  • 13.1.1 If any competitor or official requires medical assistance, any person on the course may call “CEASE FIRE” loudly and repeatedly. All shooting shall halt immediately.
  • 13.1.2 ROs at stage shall acknowledge with a “STAGE CLEAR” call or radio confirmation before competitors resume.

13.2 Lost Competitor Protocol

  • 13.2.1 Competitors who fail to finish within 2 hours shall be flagged by the scoring station.
  • 13.2.2 A designated RO or MD shall initiate contact (radio, phone, or physical check) for any competitor exceeding the maximum time.

13.3 Weather and Course Abort

  • 13.3.1 The MD has sole authority to suspend or abort the event for safety reasons including severe weather, lightning, or course hazard.
Section 14

Refund Policy

Window Refund
14.1 — Until 60 days before the eventFull refund, minus fees
14.2 — Until 30 days before the eventHalf refund, minus fees
14.3 — Within 30 days of the eventNo refund