Load data for .44 Rem. Mag. + 300gr Hornady XTP
The most recommended powders for this combination are Vihtavuori 3N37, Hodgdon LilGun and Vihtavuori 3N38.
Based on C.I.P., the max. allowed case length is 1.285 in / 32.64 mm, the max. cartridge length is 1.610 in / 40.89 mm, and the max. allowed pressure is 40,611 PSI / 2,800 bar.

Based on C.I.P., the max. allowed case length is 1.285 in / 32.64 mm, the max. cartridge length is 1.610 in / 40.89 mm, and the max. allowed pressure is 40,611 PSI / 2,800 bar.

Load Specifications
ImperialMetric
Bullet:.430 | 300gr | XTP
Cartridge:.44 Rem. Mag. load data
Case Length (L3):1.275" | 32.4 mm
Cartridge Length (COL/L6):•••
Seated Depth:0.525" | 13.3 mm
Case Capacity:39.5 gow | 2.56 cm³
Primer Size:Large Pistol Magnum (LPM)
Max. Pressure (C.I.P.):40,611 psi | 2,800 bar
Barrel Length:6.0" | 152 mm
Min. Twist Rate:Stabilizes in any common twist
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Community Loads for .44 Rem. Mag. + 300gr Hornady XTP
Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.
| Powder | Charge (gr) | C.O.L. | Barrel Length | Velocity (fps) | Pressure (psi) |
|---|---|---|---|---|---|
| 10.0 gr | 1.610" | 20.9" | 1145 fps | ••• | |
| 18.0 gr | 1.600" | 20.0" | 1417 fps | ••• | |
| 19.0 gr | 1.600" | 20.0" | 1490 fps | ••• | |
| ••• | 1.600" | 17.4" | 1545 fps | ••• | |
| ••• | 1.600" | — | 961 fps | ••• | |
| ••• | 1.600" | — | 1113 fps | ••• | |
| ••• | 1.610" | 23.6" | 1335 fps | ••• | |
| ••• | 1.610" | 3.5" | 974 fps | ••• | |
| ••• | 1.610" | 3.5" | 1020 fps | ••• | |
| ••• | 1.610" | 3.5" | 1040 fps | ••• | |
| ••• | 1.610" | 3.5" | 830 fps | ••• | |
| ••• | 1.610" | 3.5" | 899 fps | ••• | |
| ••• | 1.600" | 20.0" | 1320 fps | ••• | |
Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.