Load Specifications
Bullet Manufacturer:SUS-TAC
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:1:6.0
Load data in caliber .375 H&H Mag. with .375 | 300gr | SUS-TAC Solid Flat Nose bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and Alliant Reloder-17.
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>> | 86% | 55,129 psi | 88% | 2379 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,417 psi | 86% | 2402 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 53,098 psi | 85% | 2398 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,172 psi | 88% | 2461 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,736 psi | 85% | 2395 fps | 96.6% |
| Accurate 4064 | <<locked>> | 94% | 56,231 psi | 90% | 2480 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,025 psi | 83% | 2510 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 53,867 psi | 86% | 2467 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 54,897 psi | 88% | 2467 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,214 psi | 85% | 2425 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 53,693 psi | 86% | 2402 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,998 psi | 88% | 2516 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 53,287 psi | 85% | 2572 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,549 psi | 87% | 2487 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,737 psi | 88% | 2379 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,361 psi | 89% | 2507 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,589 psi | 81% | 2513 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,969 psi | 88% | 2595 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,911 psi | 58% | 2280 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 39,537 psi | 63% | 2408 fps | 96.8% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,519 psi | 86% | 2484 fps | 99.6% |
| Bofors RP3 | <<locked>> | 94% | 55,114 psi | 88% | 2503 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,419 psi | 89% | 2470 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,027 psi | 88% | 2408 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,579 psi | 89% | 2497 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,795 psi | 86% | 2536 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 53,780 psi | 86% | 2418 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,810 psi | 88% | 2444 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,246 psi | 90% | 2513 fps | 99.5% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,216 psi | 89% | 2556 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 98% | 56,391 psi | 90% | 2520 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 88% | 54,418 psi | 87% | 2474 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,702 psi | 75% | 2405 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,388 psi | 86% | 2507 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,376 psi | 90% | 2592 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 57% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,825 psi | 90% | 2477 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 54,215 psi | 87% | 2461 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,433 psi | 87% | 2451 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,621 psi | 88% | 2434 fps | 97.7% |
| IMR 4198 | <<locked>> | 82% | 54,926 psi | 88% | 2336 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,982 psi | 83% | 2448 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,969 psi | 87% | 2454 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,269 psi | 79% | 2454 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 53,229 psi | 85% | 2487 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 53,214 psi | 85% | 2425 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 53,113 psi | 85% | 2411 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 53,359 psi | 86% | 2448 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,882 psi | 86% | 2405 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 53,983 psi | 87% | 2448 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,434 psi | 90% | 2493 fps | 99% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,780 psi | 86% | 2477 fps | 97.9% |
| Norma 201 | <<locked>> | 90% | 56,173 psi | 90% | 2464 fps | 100% |
| Norma 202 | <<locked>> | 88% | 53,229 psi | 85% | 2421 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,505 psi | 87% | 2497 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 51,358 psi | 82% | 2500 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 92% | 54,766 psi | 88% | 2516 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,212 psi | 81% | 2493 fps | 98% |
| Ramshot TAC | <<locked>> | 86% | 53,447 psi | 86% | 2444 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,289 psi | 90% | 2503 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,244 psi | 87% | 2431 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,766 psi | 57% | 1503 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,072 psi | 90% | 2451 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,040 psi | 85% | 2448 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,492 psi | 89% | 2562 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,897 psi | 88% | 2595 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,300 psi | 82% | 2526 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,851 psi | 83% | 2552 fps | 99% |
| Rottweil R 901 | <<locked>> | 86% | 54,056 psi | 87% | 2405 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 53,374 psi | 86% | 2418 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,723 psi | 88% | 2490 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,419 psi | 89% | 2470 fps | 97.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,434 psi | 90% | 2493 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 88% | 53,359 psi | 86% | 2448 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,983 psi | 87% | 2448 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,780 psi | 86% | 2477 fps | 97.9% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,898 psi | 90% | 2428 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 52,939 psi | 85% | 2500 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,637 psi | 89% | 2395 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,172 psi | 88% | 2470 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,666 psi | 89% | 2487 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,708 psi | 88% | 2365 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,462 psi | 87% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,505 psi | 86% | 2408 fps | 97.5% |
| Somchem S321 | <<locked>> | 84% | 54,244 psi | 87% | 2457 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,954 psi | 87% | 2369 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,636 psi | 88% | 2461 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 55,085 psi | 88% | 2487 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,890 psi | 74% | 2454 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,447 psi | 87% | 2333 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,824 psi | 88% | 2352 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,985 psi | 90% | 2425 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,708 psi | 86% | 2405 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 53,243 psi | 85% | 2428 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,012 psi | 87% | 2497 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 86% | 53,664 psi | 86% | 2428 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,143 psi | 88% | 2444 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,750 psi | 85% | 2500 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,508 psi | 62% | 2346 fps | 97.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2480 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 53,127 psi | 85% | 2467 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,216 psi | 89% | 2556 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 31,952 psi | 51% | 2264 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,666 psi | 89% | 2500 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% | 45,847 psi | 74% | 2260 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,850 psi | 80% | 2356 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,493 psi | 62% | 2198 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 45,049 psi | 72% | 2326 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 46,398 psi | 74% | 2303 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 36,390 psi | 58% | 2192 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 32,155 psi | 52% | 2169 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 42,032 psi | 67% | 2287 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 35,839 psi | 57% | 2156 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 44,106 psi | 71% | 2293 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 43,932 psi | 70% | 2280 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,459 psi | 83% | 2467 fps | 100% |
| Alliant Power Pro 2000-MR | 61.9 gr | 80% | 37,956 psi | 61% | 2306 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,273 psi | 57% | 2178 fps | 98.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,474 psi | 83% | 2336 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,855 psi | 61% | 2231 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 33,170 psi | 53% | 2182 fps | 95.3% |
| Alliant Reloder-17 | 61 gr | 80% | 30,371 psi | 49% | 2146 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 29,994 psi | 48% | 2142 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 37,014 psi | 59% | 2356 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,133 psi | 66% | 2290 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 34,751 psi | 56% | 2182 fps | 98.3% |
| Bofors RP7 | <<locked>> | 92% | 46,050 psi | 74% | 2333 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,963 psi | 74% | 2283 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,569 psi | 68% | 2313 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,891 psi | 75% | 2438 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 50,531 psi | 81% | 2375 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,198 psi | 82% | 2398 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 35,679 psi | 57% | 2182 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 92% | 42,511 psi | 68% | 2359 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 94% | 49,763 psi | 80% | 2428 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 42,424 psi | 68% | 2297 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 28,485 psi | 46% | 2051 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,261 psi | 61% | 2270 fps | 99% |
| Hodgdon Superformance | <<locked>> | 94% | 45,527 psi | 73% | 2428 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 42% | 1309 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,712 psi | 65% | 2254 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 41,959 psi | 67% | 2293 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,579 psi | 60% | 2185 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,772 psi | 69% | 2251 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 51,822 psi | 83% | 2300 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 45,934 psi | 74% | 2356 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 42,496 psi | 68% | 2274 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 33,402 psi | 54% | 2178 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 38,769 psi | 62% | 2257 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 44,106 psi | 71% | 2293 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 49,792 psi | 80% | 2369 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,915 psi | 66% | 2270 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 42,511 psi | 68% | 2234 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 37,536 psi | 60% | 2192 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 36,898 psi | 59% | 2182 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 41,930 psi | 67% | 2293 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 41,350 psi | 66% | 2247 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 41,481 psi | 67% | 2254 fps | 100% |
| Norma 203B | <<locked>> | 80% | 37,246 psi | 60% | 2221 fps | 98% |
| Norma URP | <<locked>> | 86% | 32,851 psi | 53% | 2172 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 36,593 psi | 59% | 2231 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 38,914 psi | 62% | 2300 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 44,019 psi | 71% | 2300 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,294 psi | 69% | 2316 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,718 psi | 77% | 2339 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 43% | 1342 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,545 psi | 79% | 2365 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 41,176 psi | 66% | 2260 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,349 psi | 63% | 2316 fps | 98% |
| ReloadSwiss RS 60 | 61 gr | 80% | 32,343 psi | 52% | 2205 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 34,301 psi | 55% | 2231 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 37,231 psi | 60% | 2290 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 45,194 psi | 72% | 2280 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 39,276 psi | 63% | 2205 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 32,663 psi | 52% | 2133 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 92% | 46,050 psi | 74% | 2333 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 36,898 psi | 59% | 2182 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,915 psi | 66% | 2270 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 37,536 psi | 60% | 2192 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 41,930 psi | 67% | 2293 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,185 psi | 84% | 2379 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,605 psi | 54% | 2172 fps | 96.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,489 psi | 84% | 2359 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 42,192 psi | 68% | 2277 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,524 psi | 65% | 2260 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,859 psi | 69% | 2208 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,491 psi | 57% | 2093 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 43,932 psi | 70% | 2270 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 47,587 psi | 76% | 2365 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 42,395 psi | 68% | 2211 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,930 psi | 67% | 2277 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 33,707 psi | 54% | 2139 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 25,962 psi | 42% | 2034 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 48,443 psi | 78% | 2260 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,120 psi | 69% | 2201 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,653 psi | 62% | 2192 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,233 psi | 63% | 2198 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,908 psi | 51% | 2083 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 34,418 psi | 55% | 2175 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 44,208 psi | 71% | 2290 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 37,739 psi | 61% | 2192 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 33,750 psi | 54% | 2178 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 94% | 31,966 psi | 51% | 2208 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 28,500 psi | 46% | 2018 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 43,569 psi | 70% | 2333 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 42,714 psi | 68% | 2362 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 98% | 30,023 psi | 48% | 2208 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,885 psi | 64% | 2264 fps | 99% |
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 104 powders for .375 H&H Mag. loaded with the .375 | 300gr | SUS-TAC Solid Flat Nose. Alliant Reloder-17 delivers the highest muzzle velocity at 2,595 fps; across all powders the maximum-charge window runs from 1,467 fps to 2,595 fps. Accurate 4350 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 300.0 gr projectile in 0.375" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for .375 H&H Mag. with the .375 | 300gr | SUS-TAC Solid Flat Nose 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.