Load Specifications
Bullet Manufacturer:Alaska Bullet Works
Bullet Weight:270 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 | 270gr | Alaska Bullet Works Kodiak PP SPBC bullet and 101 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 60 and Ramshot Big Game.
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% | 55,085 psi | 88% | 2523 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,447 psi | 86% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 56,086 psi | 90% | 2582 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,056 psi | 88% | 2605 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 55,854 psi | 90% | 2625 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 47,834 psi | 77% | 2585 fps | 98.2% |
| Accurate LT-30 | <<locked>> | 82% | 54,723 psi | 88% | 2474 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,172 psi | 88% | 2497 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,157 psi | 87% | 2612 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 96% | 54,882 psi | 88% | 2605 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 82% | 55,405 psi | 89% | 2585 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,388 psi | 86% | 2569 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 53,476 psi | 86% | 2552 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 54,940 psi | 88% | 2664 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 53,243 psi | 85% | 2710 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,389 psi | 87% | 2625 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,056 psi | 88% | 2530 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,259 psi | 89% | 2648 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,413 psi | 76% | 2592 fps | 98.3% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 54,897 psi | 88% | 2736 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,809 psi | 86% | 2474 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 53,737 psi | 86% | 2625 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 54,723 psi | 88% | 2641 fps | 100% |
| Bofors RP7ᴾ | <<locked>> | 100% | 55,361 psi | 89% | 2602 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,521 psi | 89% | 2556 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 90% | 55,622 psi | 89% | 2644 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 53,896 psi | 86% | 2684 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 53,983 psi | 87% | 2566 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,085 psi | 88% | 2592 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 56,217 psi | 90% | 2651 fps | 98.9% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 51,430 psi | 82% | 2635 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 90% | 54,621 psi | 88% | 2621 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,526 psi | 70% | 2484 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 53,185 psi | 85% | 2648 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,954 psi | 56% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,898 psi | 90% | 2621 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 53,954 psi | 87% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 54,534 psi | 87% | 2592 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,100 psi | 88% | 2569 fps | 96.8% |
| IMR 4198 | <<locked>> | 84% | 55,405 psi | 89% | 2490 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,288 psi | 87% | 2589 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 45,600 psi | 73% | 2533 fps | 97.9% |
| IMR 4895 | <<locked>> | 92% | 53,171 psi | 85% | 2628 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 53,388 psi | 86% | 2569 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 53,519 psi | 86% | 2559 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 53,171 psi | 85% | 2589 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,346 psi | 87% | 2546 fps | 99.7% |
| Lovex S062 | <<locked>> | 94% | 53,896 psi | 86% | 2589 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 52,982 psi | 85% | 2579 fps | 97.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 50,285 psi | 81% | 2559 fps | 96.2% |
| Norma 201 | <<locked>> | 92% | 56,289 psi | 90% | 2608 fps | 100% |
| Norma 202 | <<locked>> | 90% | 53,287 psi | 85% | 2566 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,404 psi | 87% | 2638 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 47,659 psi | 76% | 2582 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 94% | 54,636 psi | 88% | 2661 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 46,876 psi | 75% | 2569 fps | 96.1% |
| Ramshot TAC | <<locked>> | 88% | 53,751 psi | 86% | 2582 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 88% | 52,997 psi | 85% | 2602 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,534 psi | 87% | 2572 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,331 psi | 57% | 1591 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 56,405 psi | 90% | 2598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 53,388 psi | 86% | 2585 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,216 psi | 89% | 2707 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 54,752 psi | 88% | 2740 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 47,558 psi | 76% | 2605 fps | 97.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 48,544 psi | 78% | 2625 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 88% | 53,983 psi | 87% | 2546 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 53,214 psi | 85% | 2559 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 54,331 psi | 87% | 2628 fps | 99.9% |
| Rottweil R 907ᴾ | <<locked>> | 100% | 55,361 psi | 89% | 2602 fps | 96.2% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 52,982 psi | 85% | 2579 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,171 psi | 85% | 2589 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 53,896 psi | 86% | 2589 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 50,285 psi | 81% | 2559 fps | 96.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,765 psi | 85% | 2526 fps | 99.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 55,738 psi | 89% | 2595 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 56,289 psi | 90% | 2687 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 55,912 psi | 90% | 2549 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 55,550 psi | 89% | 2612 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,898 psi | 90% | 2631 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 54,897 psi | 88% | 2510 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 54,665 psi | 88% | 2510 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 53,534 psi | 86% | 2539 fps | 96.4% |
| Somchem S321 | <<locked>> | 86% | 54,563 psi | 87% | 2602 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 53,983 psi | 87% | 2510 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,955 psi | 88% | 2605 fps | 99.7% |
| Somchem S355 | <<locked>> | 98% | 54,911 psi | 88% | 2628 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,424 psi | 68% | 2533 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 86% | 54,810 psi | 88% | 2480 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 54,868 psi | 88% | 2497 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 55,695 psi | 89% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,664 psi | 86% | 2546 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 53,055 psi | 85% | 2566 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,183 psi | 80% | 2579 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 88% | 53,867 psi | 86% | 2569 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 55,274 psi | 89% | 2589 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 49,139 psi | 79% | 2582 fps | 98.1% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 51,314 psi | 82% | 2569 fps | 99.7% |
| Winchester 748 | <<locked>> | 88% | 53,040 psi | 85% | 2612 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 51,430 psi | 82% | 2635 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 92% | 55,637 psi | 89% | 2641 fps | 99.9% |
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% | 43,062 psi | 69% | 2359 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,876 psi | 75% | 2454 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,592 psi | 57% | 2280 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,105 psi | 68% | 2415 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 33,649 psi | 54% | 2267 fps | 99.4% |
| Accurate 4350 | <<locked>> | 92% | 36,332 psi | 58% | 2382 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 51,372 psi | 82% | 2428 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,764 psi | 83% | 2451 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,523 psi | 63% | 2369 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 35,853 psi | 57% | 2277 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 51,880 psi | 83% | 2539 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,539 psi | 67% | 2382 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 40,930 psi | 66% | 2382 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,240 psi | 77% | 2562 fps | 99.5% |
| Alliant Power Pro 2000-MR | 63.4 gr | 80% | 35,621 psi | 57% | 2375 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,953 psi | 53% | 2251 fps | 96.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,776 psi | 78% | 2444 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,433 psi | 57% | 2303 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,260 psi | 60% | 2392 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 84% | 32,387 psi | 52% | 2306 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,473 psi | 81% | 2428 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,493 psi | 62% | 2369 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 32,256 psi | 52% | 2251 fps | 96.5% |
| Bofors RP7 | <<locked>> | 98% | 52,170 psi | 84% | 2556 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,569 psi | 70% | 2375 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,755 psi | 64% | 2395 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,642 psi | 70% | 2520 fps | 98% |
| Hodgdon H322 | <<locked>> | 80% | 47,558 psi | 76% | 2477 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,153 psi | 77% | 2497 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 38,043 psi | 61% | 2352 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 98% | 48,008 psi | 77% | 2582 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 39,856 psi | 64% | 2379 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,952 psi | 51% | 2247 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,766 psi | 57% | 2349 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,005 psi | 42% | 1388 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,334 psi | 61% | 2336 fps | 97.7% |
| IMR 3031 | <<locked>> | 80% | 38,928 psi | 62% | 2382 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,389 psi | 57% | 2264 fps | 95.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 48,675 psi | 78% | 2474 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 49,255 psi | 79% | 2411 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,979 psi | 77% | 2493 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 37,565 psi | 60% | 2388 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 36,260 psi | 58% | 2333 fps | 96.8% |
| IMR 8208 XBR | <<locked>> | 80% | 41,539 psi | 67% | 2382 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 46,702 psi | 75% | 2461 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,014 psi | 61% | 2352 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 40,190 psi | 64% | 2316 fps | 97.7% |
| Lovex S062 | <<locked>> | 80% | 35,099 psi | 56% | 2267 fps | 97.7% |
| Lovex S065 | <<locked>> | 92% | 41,626 psi | 67% | 2395 fps | 95.2% |
| Lovex S070 | <<locked>> | 98% | 47,195 psi | 76% | 2510 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 38,783 psi | 62% | 2329 fps | 98.5% |
| Norma 202 | <<locked>> | 80% | 38,986 psi | 63% | 2343 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 34,824 psi | 56% | 2293 fps | 96.2% |
| Norma URP | <<locked>> | 92% | 36,956 psi | 59% | 2382 fps | 95.3% |
| Ramshot Big Game | 63.4 gr | 80% | 34,229 psi | 55% | 2300 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 98% | 44,005 psi | 71% | 2516 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 41,495 psi | 67% | 2379 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,582 psi | 65% | 2398 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,918 psi | 72% | 2425 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,107 psi | 42% | 1417 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,659 psi | 75% | 2461 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 43,903 psi | 70% | 2434 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,666 psi | 59% | 2392 fps | 96.2% |
| ReloadSwiss RS 60 | 62.4 gr | 80% | 30,226 psi | 48% | 2260 fps | 97.2% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,798 psi | 62% | 2448 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 42,438 psi | 68% | 2513 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 42,772 psi | 69% | 2375 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,985 psi | 59% | 2287 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 80% | 30,342 psi | 49% | 2198 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 98% | 52,170 psi | 84% | 2556 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,626 psi | 67% | 2395 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,014 psi | 61% | 2352 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 35,099 psi | 56% | 2267 fps | 97.7% |
| Shooters World SW4350 | <<locked>> | 98% | 47,195 psi | 76% | 2510 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,269 psi | 79% | 2477 fps | 99.6% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,185 psi | 84% | 2549 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,533 psi | 54% | 2290 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,501 psi | 79% | 2464 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,537 psi | 63% | 2352 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,145 psi | 61% | 2343 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,480 psi | 65% | 2297 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,301 psi | 53% | 2175 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 46,818 psi | 75% | 2441 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 44,701 psi | 72% | 2454 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,900 psi | 64% | 2300 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,262 psi | 63% | 2356 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 31,372 psi | 50% | 2205 fps | 95.5% |
| Somchem S365 | <<locked>> | 88% | 29,080 psi | 47% | 2234 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 45,818 psi | 73% | 2359 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,611 psi | 65% | 2297 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,984 psi | 58% | 2280 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,825 psi | 59% | 2283 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 29,791 psi | 48% | 2152 fps | 96.5% |
| Vihtavuori N160 | <<locked>> | 92% | 38,914 psi | 62% | 2388 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 41,553 psi | 67% | 2379 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 35,331 psi | 57% | 2274 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 38,058 psi | 61% | 2388 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,474 psi | 52% | 2224 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 40,582 psi | 65% | 2415 fps | 99.4% |
| Winchester 760 | <<locked>> | 98% | 48,269 psi | 77% | 2585 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,318 psi | 60% | 2343 fps | 97.6% |
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 101 powders for .375 H&H Mag. loaded with the .375 | 270gr | Alaska Bullet Works Kodiak PP SPBC. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,740 fps; across all powders the maximum-charge window runs from 1,555 fps to 2,740 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 270.0 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-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 60, Ramshot Big Game rank at the top here: for .375 H&H Mag. with the .375 | 270gr | Alaska Bullet Works Kodiak PP SPBC 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.