Load data for .375 Raptor + .375 | 185gr | Lehigh Defense Controlled Fracturing

.375 Raptor cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:185 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Case Length (l3):1.865"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:60 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:22"
Max. allowed Pressure:58,015 psi

Load data in caliber .375 Raptor with .375 | 185gr | Lehigh Defense Controlled Fracturing bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 5744, Shooters World Buffalo Rifle and Lovex D060.

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: 22"

PowderChargeFRMaxP%V(0)z
Accurate 1680ᴾ<<locked>>100%52,098 psi90%2546 fps97.7%
Accurate 5744<<locked>>88%50,865 psi88%2585 fps98.7%
Accurate No. 11 FS<<locked>>86%49,124 psi85%2529 fps99.9%
ADI AR 2205<<locked>>90%50,966 psi88%2473 fps100%
ADI AR 2207ᴾ<<locked>>100%43,642 psi75%2549 fps99.6%
Alliant Reloder-7ᴾ<<locked>>100%46,006 psi79%2541 fps97.7%
Hodgdon LilGun<<locked>>82%50,053 psi86%2565 fps100%
Hodgdon TrailBossᴾ<<locked>>100%28,500 psi49%1514 fps100%
IMR 4198ᴾ<<locked>>100%40,030 psi69%2427 fps96.5%
IMR 4227<<locked>>98%52,098 psi90%2581 fps99.7%
Lovex D060<<locked>>90%50,865 psi88%2585 fps98.7%
Lovex D063<<locked>>90%50,372 psi87%2516 fps98.8%
Lovex S040<<locked>>82%49,603 psi86%2437 fps100%
Lovex S053ᴾ<<locked>>100%52,214 psi90%2579 fps100%
Norma 200ᴾ<<locked>>100%39,682 psi68%2499 fps96.9%
ReloadSwiss RS 14ᴾ<<locked>>100%28,529 psi49%1551 fps100%
ReloadSwiss RS 36<<locked>>98%50,285 psi87%2604 fps99.5%
Shooters World Blackout<<locked>>86%49,472 psi85%2520 fps98.3%
Shooters World Buffalo Rifle<<locked>>90%50,865 psi88%2585 fps98.7%
Shooters World SOCOM<<locked>>90%50,372 psi87%2516 fps98.8%
SNPE Vectan BA6 1/2ᴾ<<locked>>100%47,819 psi82%2385 fps100%
Vihtavuori N110<<locked>>92%49,835 psi86%2486 fps100%
Vihtavuori N120ᴾ<<locked>>100%40,219 psi69%2458 fps99.8%

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

Start Load - Barrel Length: 22"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>92%39,610 psi68%2356 fps95%
Accurate 574431.7 gr80%40,335 psi70%2404 fps96.8%
Accurate No. 11 FS<<locked>>80%40,625 psi70%2398 fps99.3%
ADI AR 2205<<locked>>80%37,913 psi65%2274 fps99.8%
ADI AR 2207<<locked>>84%26,455 psi46%2200 fps95.6%
Alliant Reloder-7<<locked>>92%35,853 psi62%2366 fps95.3%
Hodgdon LilGun<<locked>>80%46,949 psi81%2524 fps100%
Hodgdon TrailBoss<<locked>>80%20,900 psi36%1356 fps100%
IMR 4198<<locked>>96%35,215 psi61%2342 fps95.2%
IMR 4227<<locked>>80%30,530 psi53%2198 fps95.6%
Lovex D06030.9 gr80%37,956 psi65%2358 fps96.1%
Lovex D063<<locked>>80%36,085 psi62%2280 fps95.9%
Lovex S040<<locked>>80%46,949 psi81%2401 fps100%
Lovex S053<<locked>>80%29,646 psi51%2189 fps98.6%
Norma 200<<locked>>96%34,635 psi60%2405 fps95.5%
ReloadSwiss RS 14<<locked>>80%20,392 psi35%1386 fps100%
ReloadSwiss RS 36<<locked>>82%30,908 psi53%2253 fps95.6%
Shooters World Blackout<<locked>>80%40,379 psi70%2372 fps96.5%
Shooters World Buffalo Rifle30.9 gr80%37,956 psi65%2358 fps96.1%
Shooters World SOCOM<<locked>>80%36,085 psi62%2280 fps95.9%
SNPE Vectan BA6 1/2<<locked>>80%28,311 psi49%2070 fps100%
Vihtavuori N110<<locked>>80%35,346 psi61%2268 fps100%
Vihtavuori N120<<locked>>82%23,801 psi41%2090 fps95.5%

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 23 powders for .375 Raptor loaded with the .375 | 185gr | Lehigh Defense Controlled Fracturing. ReloadSwiss RS 36 delivers the highest muzzle velocity at 2,604 fps; across all powders the maximum-charge window runs from 1,514 fps to 2,604 fps. Accurate 1680 gives the best case fill at 100 %, and 23 of the 23 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (400 MPa), the top charges use 49–90 %, leaving at least 10 % headroom. Accurate 1680, ADI AR 2207, Alliant Reloder-7 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. Accurate 5744, Shooters World Buffalo Rifle, Lovex D060 rank at the top here: for .375 Raptor with the .375 | 185gr | Lehigh Defense Controlled Fracturing they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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