Load data for .50 Beowolf + .500 | 350gr | Lehigh Defense Xtreme Penetrator

.50 Beowolf cartridge drawing
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Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:350 gr
Bullet Diameter:0.5"
Bullet Length:<<locked>>
Case Length (l3):1.65"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:69 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:16"
Max. allowed Pressure:33,359 psi

Load data in caliber .50 Beowolf with .500 | 350gr | Lehigh Defense Xtreme Penetrator bullet and 4 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N110, SNPE Vectan BA6 1/2 and ReloadSwiss RS 14.

Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.

Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.

Charge: Powder weight in grains. Start with the minimum load and work up carefully.

FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.

MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.

V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.

z (Powder Burn): Estimated propellant combustion percentage at bullet exit.

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Max Load - Barrel Length: 16"

PowderChargeFRMaxP%V(0)z
Hodgdon TrailBossᴾ<<locked>>100%24,062 psi72%1161 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%23,018 psi69%1184 fps100%
SNPE Vectan BA6 1/2<<locked>>96%29,051 psi87%1696 fps99.5%
Vihtavuori N110<<locked>>88%29,095 psi87%1732 fps98.3%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 16"

PowderChargeFRMaxP%V(0)z
Hodgdon TrailBoss<<locked>>80%17,434 psi52%1037 fps100%
ReloadSwiss RS 1412.6 gr80%16,650 psi50%1056 fps100%
SNPE Vectan BA6 1/230.1 gr80%18,956 psi57%1467 fps95.6%
Vihtavuori N11031.4 gr80%22,742 psi68%1598 fps95.9%

Recommended = one of the top powders for this cartridge and bullet combination.

ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.

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This overview compares 6 powders for .50 Beowolf loaded with the .500 | 350gr | Lehigh Defense Xtreme Penetrator. Lovex S053 delivers the highest muzzle velocity at 1,732 fps; across all powders the maximum-charge window runs from 1,161 fps to 1,732 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 6 of the 6 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (230 MPa), the top charges use 69–87 %, leaving at least 13 % headroom. Hodgdon TrailBoss, ReloadSwiss RS 14 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Vihtavuori N110, SNPE Vectan BA6 1/2, ReloadSwiss RS 14 rank at the top here: for .50 Beowolf with the .500 | 350gr | Lehigh Defense Xtreme Penetrator they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2205, Lovex S053 burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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