Load Specifications
Bullet Manufacturer:Nosler
Bullet Weight:300 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 H&H Mag. load data
Case Length (l3):2.859"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:95.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:16.0
Load data in caliber .375 H&H Mag. with .375 | 300gr | Nosler AccuBond bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 54,868 psi | 88% | 2349 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,388 psi | 86% | 2375 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 55,811 psi | 89% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,897 psi | 88% | 2431 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 52,707 psi | 85% | 2359 fps | 95.9% |
| Accurate 4064 | <<locked>> | 96% | 55,376 psi | 89% | 2444 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,514 psi | 76% | 2418 fps | 98.6% |
| Accurate LT-30 | <<locked>> | 82% | 54,491 psi | 87% | 2300 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 54,897 psi | 88% | 2323 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 53,882 psi | 86% | 2438 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 96% | 54,578 psi | 88% | 2431 fps | 99.6% |
| ADI AR 2219 | <<locked>> | 82% | 55,245 psi | 89% | 2408 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,084 psi | 85% | 2395 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 53,113 psi | 85% | 2375 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 54,694 psi | 88% | 2484 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 52,968 psi | 85% | 2533 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,012 psi | 87% | 2451 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 84% | 54,839 psi | 88% | 2352 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,868 psi | 88% | 2470 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,079 psi | 75% | 2425 fps | 98.7% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,389 psi | 87% | 2556 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 33,286 psi | 53% | 2192 fps | 96.4% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,519 psi | 86% | 2303 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 53,301 psi | 85% | 2448 fps | 99.3% |
| Bofors RP3 | <<locked>> | 96% | 54,447 psi | 87% | 2467 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2431 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,216 psi | 89% | 2382 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 55,434 psi | 89% | 2467 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,447 psi | 86% | 2503 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 53,954 psi | 87% | 2392 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 54,795 psi | 88% | 2418 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 55,956 psi | 90% | 2477 fps | 99.2% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 50,879 psi | 82% | 2464 fps | 96.8% |
| Hodgdon H4350ᴾ | <<locked>> | 100% | 55,840 psi | 90% | 2477 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 90% | 54,331 psi | 87% | 2448 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,120 psi | 69% | 2320 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 56,391 psi | 90% | 2516 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 52,098 psi | 84% | 2493 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,853 psi | 56% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,622 psi | 89% | 2448 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 53,650 psi | 86% | 2428 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,172 psi | 87% | 2415 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,781 psi | 88% | 2398 fps | 97.2% |
| IMR 4198 | <<locked>> | 84% | 55,100 psi | 88% | 2313 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 53,853 psi | 86% | 2418 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,281 psi | 73% | 2369 fps | 98.3% |
| IMR 4895 | <<locked>> | 94% | 56,217 psi | 90% | 2497 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 53,084 psi | 85% | 2395 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 53,258 psi | 85% | 2385 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 56,376 psi | 90% | 2457 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 53,969 psi | 87% | 2375 fps | 99.8% |
| Lovex S062 | <<locked>> | 94% | 53,795 psi | 86% | 2418 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,692 psi | 84% | 2411 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,879 psi | 80% | 2392 fps | 96.6% |
| Norma 201 | <<locked>> | 92% | 55,985 psi | 90% | 2431 fps | 100% |
| Norma 202 | <<locked>> | 92% | 56,304 psi | 90% | 2434 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,012 psi | 87% | 2461 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 47,253 psi | 76% | 2411 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 94% | 54,114 psi | 87% | 2480 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,630 psi | 75% | 2405 fps | 96.6% |
| Ramshot TAC | <<locked>> | 88% | 53,519 psi | 86% | 2411 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 90% | 56,260 psi | 90% | 2474 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,302 psi | 87% | 2402 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,331 psi | 57% | 1470 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 56,275 psi | 90% | 2425 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 53,055 psi | 85% | 2415 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,940 psi | 88% | 2530 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,172 psi | 87% | 2556 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,050 psi | 75% | 2434 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,124 psi | 77% | 2457 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 88% | 53,722 psi | 86% | 2372 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 56,246 psi | 90% | 2428 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 54,070 psi | 87% | 2454 fps | 100% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2431 fps | 96.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,692 psi | 84% | 2411 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 92% | 56,376 psi | 90% | 2457 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 53,795 psi | 86% | 2418 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,879 psi | 80% | 2392 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 56,130 psi | 90% | 2398 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 55,579 psi | 89% | 2421 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,999 psi | 90% | 2513 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 55,782 psi | 89% | 2369 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 55,027 psi | 88% | 2434 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,593 psi | 89% | 2457 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,810 psi | 88% | 2339 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,230 psi | 87% | 2336 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 53,084 psi | 85% | 2369 fps | 96.9% |
| Somchem S321 | <<locked>> | 86% | 54,172 psi | 87% | 2428 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 53,867 psi | 86% | 2339 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,433 psi | 87% | 2428 fps | 99.8% |
| Somchem S355 | <<locked>> | 98% | 54,737 psi | 88% | 2454 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,163 psi | 68% | 2369 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 86% | 54,621 psi | 88% | 2310 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,824 psi | 88% | 2326 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 55,419 psi | 89% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,476 psi | 86% | 2375 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 56,173 psi | 90% | 2434 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,937 psi | 80% | 2411 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 88% | 53,664 psi | 86% | 2395 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 54,911 psi | 88% | 2415 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,733 psi | 78% | 2415 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 35,186 psi | 56% | 2254 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,778 psi | 81% | 2398 fps | 99.9% |
| Winchester 748 | <<locked>> | 90% | 56,347 psi | 90% | 2480 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 51,111 psi | 82% | 2467 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 92% | 55,129 psi | 88% | 2464 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 42,917 psi | 69% | 2195 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,659 psi | 75% | 2290 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,476 psi | 57% | 2129 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,742 psi | 67% | 2251 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 49,472 psi | 79% | 2313 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 33,547 psi | 54% | 2119 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 33,678 psi | 54% | 2182 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 51,300 psi | 82% | 2260 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,706 psi | 83% | 2280 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,465 psi | 63% | 2215 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 33,634 psi | 54% | 2087 fps | 95.6% |
| ADI AR 2219 | <<locked>> | 80% | 51,692 psi | 83% | 2365 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,481 psi | 67% | 2224 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 40,698 psi | 65% | 2218 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,095 psi | 77% | 2392 fps | 99.7% |
| Alliant Power Pro 2000-MR | 57.7 gr | 80% | 35,462 psi | 57% | 2221 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,764 psi | 53% | 2103 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,501 psi | 78% | 2274 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,346 psi | 57% | 2156 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,911 psi | 56% | 2192 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 82% | 30,211 psi | 48% | 2113 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 31,444 psi | 50% | 2146 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,169 psi | 80% | 2264 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,232 psi | 61% | 2211 fps | 96.7% |
| Bofors RP3 | <<locked>> | 80% | 32,068 psi | 51% | 2103 fps | 97.1% |
| Bofors RP7 | <<locked>> | 96% | 48,631 psi | 78% | 2339 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,540 psi | 70% | 2218 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,537 psi | 63% | 2238 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,453 psi | 70% | 2356 fps | 98.5% |
| Hodgdon H322 | <<locked>> | 80% | 47,239 psi | 76% | 2306 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,950 psi | 77% | 2329 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 35,476 psi | 57% | 2152 fps | 95% |
| Hodgdon H414 | <<locked>> | 96% | 44,672 psi | 72% | 2365 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 98% | 52,402 psi | 84% | 2431 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 39,740 psi | 64% | 2224 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,936 psi | 48% | 2060 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,578 psi | 57% | 2195 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 98% | 48,573 psi | 78% | 2438 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,034 psi | 42% | 1280 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,218 psi | 61% | 2182 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 38,914 psi | 62% | 2224 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,259 psi | 57% | 2113 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 45,513 psi | 73% | 2264 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 49,168 psi | 79% | 2244 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 92% | 44,991 psi | 72% | 2287 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 34,969 psi | 56% | 2188 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 36,143 psi | 58% | 2182 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,481 psi | 67% | 2224 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 46,528 psi | 75% | 2297 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 37,985 psi | 61% | 2198 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 40,030 psi | 64% | 2162 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 34,969 psi | 56% | 2119 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 39,015 psi | 63% | 2195 fps | 95.1% |
| Lovex S070 | <<locked>> | 96% | 44,092 psi | 71% | 2303 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 38,682 psi | 62% | 2175 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 38,740 psi | 62% | 2185 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,722 psi | 56% | 2146 fps | 96.9% |
| Norma URP | <<locked>> | 90% | 34,505 psi | 55% | 2182 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 34,011 psi | 55% | 2152 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 96% | 41,118 psi | 66% | 2310 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 41,191 psi | 66% | 2221 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,422 psi | 65% | 2241 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,904 psi | 72% | 2267 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,179 psi | 42% | 1309 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,572 psi | 75% | 2297 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 43,656 psi | 70% | 2274 fps | 95.6% |
| ReloadSwiss RS 52 | 56 gr | 80% | 36,521 psi | 59% | 2238 fps | 96.8% |
| ReloadSwiss RS 60 | 56.9 gr | 80% | 30,226 psi | 48% | 2123 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 36,027 psi | 58% | 2241 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 39,349 psi | 63% | 2300 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 42,583 psi | 68% | 2215 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,927 psi | 59% | 2136 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 30,168 psi | 48% | 2054 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 96% | 48,631 psi | 78% | 2339 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 39,015 psi | 63% | 2195 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,985 psi | 61% | 2198 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 34,969 psi | 56% | 2119 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 44,092 psi | 71% | 2303 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,008 psi | 79% | 2310 fps | 99.8% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 51,938 psi | 83% | 2375 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,372 psi | 50% | 2100 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,443 psi | 79% | 2293 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,349 psi | 63% | 2198 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,000 psi | 61% | 2188 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,437 psi | 65% | 2142 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,286 psi | 53% | 2031 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,499 psi | 75% | 2280 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 44,382 psi | 71% | 2290 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 39,769 psi | 64% | 2146 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,928 psi | 62% | 2198 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 31,285 psi | 50% | 2064 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 27,296 psi | 44% | 2047 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 45,788 psi | 73% | 2198 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,596 psi | 65% | 2142 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,940 psi | 58% | 2126 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,622 psi | 59% | 2133 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 29,646 psi | 48% | 2014 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 90% | 36,274 psi | 58% | 2185 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 41,423 psi | 66% | 2221 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,215 psi | 56% | 2123 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 35,389 psi | 57% | 2188 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 98% | 33,083 psi | 53% | 2211 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,197 psi | 48% | 2034 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 40,335 psi | 65% | 2254 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 44,889 psi | 72% | 2369 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,014 psi | 59% | 2188 fps | 98.1% |
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 106 powders for .375 H&H Mag. loaded with the .375 | 300gr | Nosler AccuBond. Alliant Reloder-17 delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,434 fps to 2,556 fps. Accurate 4350 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, ReloadSwiss RS 60 rank at the top here: for .375 H&H Mag. with the .375 | 300gr | Nosler AccuBond 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.