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6mm Dasher Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 6mm Dasher with the free, in-browser MyLoads internal-ballistics simulator. The figures below are illustrative estimates from a physics model — not a recommended recipe. Always cross-check a current published loading manual.

6mm Dasher reference

Maximum average pressure (MAP)4,400 BAR
Nominal case capacity41.6 gr H₂O
Groove / bullet diameter0.243 in (6.17 mm)

Example simulation illustrative

Bullet
Hornady 0.243 87 gr V-MAX
Powder
Shooters World Long Rifle S065-01
Charge
31 gr
Barrel
24 in

Muzzle velocity

2,679 fps

Peak chamber pressure (interval, ±10% burn-rate)

35,844 – 45,110 – 55,589 psi

nominal is 71% of the 63,817 psi maximum average pressure

Illustrative example — every figure here is an estimate and can be wrong. Always consult a current published loading manual, and never trust these numbers on their own.

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