MyLoads Open the calculator →

44 Remington Magnum Load Data & Ballistics Calculator

Estimate chamber pressure and muzzle velocity for the 44 Remington Magnum with the free, in-browser MyLoads internal ballistics simulator. The figures below are illustrative estimates from a physics model — not a recommended load. Always cross-check a current published loading manual.

44 Remington Magnum reference

Maximum average pressure (MAP)36,000 psi
Nominal case capacity38.9 gr H₂O
Groove / bullet diameter0.429 in (10.90 mm)

Example simulation illustrative

Bullet
Hornady 0.430 225 gr FTX
Powder
Hodgdon Lil'Gun
Charge
18.6 gr
Barrel
6 in

Muzzle velocity

1,236 fps

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

16,883 – 22,078 – 28,167 psi

nominal is 61% MAP (36,000 psi)

The simulator isn't optimized for this cartridge yet and may read pressure high and velocity high.

Illustrative example — every figure is an estimate; always confirm your load against a current published manual before loading.

Popular 44 Remington Magnum powders

Powders and bullets handloaders commonly use for the 44 Remington Magnum, drawn from public discussion and listed most common first. They appear as the Popular group in the calculator's pickers. This is not a load recommendation — always check your load against a current published manual.

Popular 44 Remington Magnum bullets

Use MyLoads as a 44 Remington Magnum velocity and pressure calculator: it estimates muzzle velocity, muzzle energy and the full chamber-pressure curve for your own powder, charge and barrel length, compared against the reference facts above.

Open the 44 Remington Magnum in the MyLoads calculator →

More cartridges