Load Specifications
Load data in caliber .375 Raptor with .375 | 220gr | Hammer Stone Hammer bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, SNPE Vectan SP 10 and Norma 200.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 90% | 51,343 psi | 89% | 2431 fps | 99.8% |
| Accurate 2015ᴾ | <<locked>> | 100% | 43,033 psi | 74% | 2392 fps | 98.5% |
| Accurate 2460ᴾ | <<locked>> | 100% | 47,776 psi | 82% | 2480 fps | 96.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 31,285 psi | 54% | 2257 fps | 96% |
| Accurate LT-30 | <<locked>> | 96% | 51,779 psi | 89% | 2428 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 96% | 52,330 psi | 90% | 2431 fps | 96.9% |
| ADI AR 2205 | <<locked>> | 82% | 50,937 psi | 88% | 2316 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 50,024 psi | 86% | 2474 fps | 100% |
| ADI AR 2219 | <<locked>> | 98% | 51,996 psi | 90% | 2556 fps | 98.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 40,045 psi | 69% | 2418 fps | 99.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 49,937 psi | 86% | 2513 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 94% | 52,330 psi | 90% | 2480 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 49,603 psi | 86% | 2421 fps | 98.5% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 49,661 psi | 86% | 2523 fps | 98.1% |
| Hodgdon H335ᴾ | <<locked>> | 100% | 50,807 psi | 88% | 2543 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 92% | 50,778 psi | 88% | 2428 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,125 psi | 54% | 1467 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 37,927 psi | 65% | 2382 fps | 96.3% |
| IMR 4198ᴾ | <<locked>> | 100% | 52,272 psi | 90% | 2493 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 50,879 psi | 88% | 2408 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 51,068 psi | 88% | 2441 fps | 100% |
| Lovex D073.4 | <<locked>> | 94% | 49,284 psi | 85% | 2503 fps | 96.1% |
| Lovex S053 | <<locked>> | 90% | 52,156 psi | 90% | 2402 fps | 100% |
| Norma 200 | <<locked>> | 96% | 50,401 psi | 87% | 2500 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 30,792 psi | 53% | 1499 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 50,299 psi | 87% | 2441 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 49,313 psi | 85% | 2497 fps | 95.9% |
| Shooters World AR Plus | <<locked>> | 94% | 49,284 psi | 85% | 2503 fps | 96.1% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 51,068 psi | 88% | 2441 fps | 100% |
| Shooters World SOCOM | <<locked>> | 82% | 51,909 psi | 89% | 2418 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 50,546 psi | 87% | 2244 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 98% | 52,141 psi | 90% | 2559 fps | 97.6% |
| SNPE Vectan SP 3ᴾ | <<locked>> | 100% | 51,314 psi | 88% | 2516 fps | 99.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 40,828 psi | 70% | 2323 fps | 96.1% |
| Vihtavuori N110 | <<locked>> | 84% | 51,677 psi | 89% | 2316 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 50,241 psi | 87% | 2431 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 48,167 psi | 83% | 2428 fps | 99.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 41,684 psi | 72% | 2336 fps | 98% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 34,113 psi | 59% | 2277 fps | 96.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 22"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 37,130 psi | 64% | 2208 fps | 98.1% |
| Accurate 2015 | <<locked>> | 90% | 31,749 psi | 55% | 2182 fps | 95.5% |
| Accurate 2460 | <<locked>> | 96% | 41,785 psi | 72% | 2385 fps | 95.1% |
| Accurate 2495 | <<locked>> | 98% | 29,153 psi | 50% | 2208 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 84% | 36,027 psi | 62% | 2172 fps | 95.1% |
| Accurate LT-32 | <<locked>> | 92% | 46,441 psi | 80% | 2346 fps | 95.7% |
| ADI AR 2205 | <<locked>> | 80% | 48,080 psi | 83% | 2280 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 32,634 psi | 56% | 2188 fps | 99.7% |
| ADI AR 2219 | 44.5 gr | 88% | 37,405 psi | 64% | 2313 fps | 95.2% |
| Alliant AR-Comp | <<locked>> | 86% | 26,078 psi | 45% | 2093 fps | 95.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 27,166 psi | 47% | 2083 fps | 95% |
| Alliant Reloder-7 | <<locked>> | 80% | 34,272 psi | 59% | 2185 fps | 98% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 36,056 psi | 62% | 2201 fps | 95.5% |
| Hodgdon H322 | <<locked>> | 92% | 38,595 psi | 67% | 2336 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 94% | 41,727 psi | 72% | 2398 fps | 95.2% |
| Hodgdon H4198 | <<locked>> | 84% | 39,856 psi | 69% | 2254 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,872 psi | 39% | 1309 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 35,824 psi | 62% | 2339 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 29,660 psi | 51% | 2090 fps | 96.9% |
| IMR 4227 | <<locked>> | 80% | 40,321 psi | 70% | 2251 fps | 99.9% |
| Lovex D060 | <<locked>> | 80% | 48,182 psi | 83% | 2398 fps | 99.9% |
| Lovex D073.4 | <<locked>> | 92% | 46,079 psi | 79% | 2454 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 39,233 psi | 68% | 2218 fps | 100% |
| Norma 200 | 38.3 gr | 80% | 30,574 psi | 53% | 2156 fps | 97.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,742 psi | 39% | 1342 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 39,392 psi | 68% | 2274 fps | 99.8% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 46,224 psi | 80% | 2448 fps | 95.2% |
| Shooters World AR Plus | <<locked>> | 92% | 46,079 psi | 79% | 2454 fps | 95.4% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 48,182 psi | 83% | 2398 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 80% | 48,660 psi | 84% | 2375 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 36,695 psi | 63% | 2057 fps | 100% |
| SNPE Vectan SP 10 | 48.1 gr | 92% | 42,540 psi | 73% | 2411 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 33,562 psi | 58% | 2211 fps | 95.1% |
| Somchem S335 | <<locked>> | 98% | 38,290 psi | 66% | 2280 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 46,311 psi | 80% | 2251 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 32,793 psi | 57% | 2162 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 28,152 psi | 49% | 2057 fps | 95% |
| Vihtavuori N133 | <<locked>> | 92% | 32,967 psi | 57% | 2172 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 98% | 32,169 psi | 55% | 2234 fps | 95.7% |
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.
This overview compares 63 powders for .375 Raptor loaded with the .375 | 220gr | Hammer Stone Hammer. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,562 fps; across all powders the maximum-charge window runs from 1,467 fps to 2,562 fps. Accurate 2015 gives the best case fill at 100 %, and 63 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (400 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 220.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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. ADI AR 2219, SNPE Vectan SP 10, Norma 200 rank at the top here: for .375 Raptor with the .375 | 220gr | Hammer Stone Hammer they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, Accurate 2520 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.