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Solver Validation

Every build runs an on-device Runge-Kutta 4th Order (RK4) modified point-mass solver against published trajectory fixtures. We publish validation results publicly so long-range hunters can verify physics accuracy before hitting the field.

CI Quality Gate

PR blocked if any fixture exceeds 0.05 mil deviation at 1000 yards — current harness validates 74 unit & trajectory tests across RK4 integrator, wind, corrections, BLE, and profile importers.

Physics Surface Implemented

RK4 numerical integration · G1/G7 standard drag curves · multi-segment velocity BC · atmospheric density altitude · Coriolis deflection · Miller stability spin drift · aerodynamic jump · cant compensation · Hunter WEZ vital-zone probability · 1:1 scope turret tape generator.

Current Harness Snapshot (74/74 Tests Passing)

.308 Win · 175gr SMK · G7 0.243 · 2600 fps

PASS

Drop @ 1000yd

-432.0"

Hold @ 1000yd

12.001 MIL

Vel @ 1000yd

1089 FPS

Accuracy

< 0.05 MIL

6.5 Creedmoor · 140gr ELD-M · G7 0.315 · 2710 fps

PASS

Drop @ 1000yd

-317.6"

Hold @ 1000yd

8.823 MIL

Vel @ 1000yd

1485 FPS

Accuracy

< 0.05 MIL

7mm PRC · 180gr ELD-M · G7 0.401 · 2950 fps

PASS

Drop @ 1000yd

-235.3"

Hold @ 1000yd

6.536 MIL

Vel @ 1000yd

1877 FPS

Accuracy

< 0.05 MIL