Load Specifications
Bullet:.375 | 260gr | Nosler Solid
Bullet Manufacturer:Nosler
Bullet Weight:260 gr
Bullet Diameter:0.375"
Bullet Length:<<locked>>
Caliber:.375 Weath. Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:105 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:6.0
Load data in caliber .375 Weath. Mag. with .375 | 260gr | Nosler Solid bullet and 105 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 ReloadSwiss RS 52.
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% | 54,563 psi | 86% | 2612 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,579 psi | 89% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,999 psi | 88% | 2674 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,723 psi | 86% | 2697 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,912 psi | 88% | 2667 fps | 96.4% |
| Accurate 4064 | <<locked>> | 94% | 55,738 psi | 87% | 2717 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,517 psi | 81% | 2736 fps | 98.9% |
| Accurate LT-30 | <<locked>> | 82% | 56,840 psi | 89% | 2598 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 57,290 psi | 90% | 2621 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,898 psi | 89% | 2749 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 94% | 54,375 psi | 85% | 2697 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,144 psi | 88% | 2703 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 56,710 psi | 89% | 2684 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,404 psi | 85% | 2756 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,608 psi | 89% | 2864 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 57,653 psi | 90% | 2769 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,259 psi | 85% | 2615 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,868 psi | 86% | 2740 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,227 psi | 79% | 2743 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,578 psi | 86% | 2831 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,592 psi | 56% | 2480 fps | 96.9% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,173 psi | 88% | 2598 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 56,768 psi | 89% | 2766 fps | 99.5% |
| Bofors RP3 | <<locked>> | 94% | 54,491 psi | 85% | 2733 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,085 psi | 86% | 2700 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,723 psi | 86% | 2644 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,259 psi | 87% | 2736 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 57,319 psi | 90% | 2831 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 84% | 56,956 psi | 89% | 2700 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,346 psi | 85% | 2680 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,912 psi | 88% | 2746 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 2785 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 98% | 55,854 psi | 88% | 2749 fps | 96% |
| Hodgdon H4895 | <<locked>> | 90% | 57,421 psi | 90% | 2759 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,296 psi | 73% | 2625 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,565 psi | 89% | 2792 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 56,159 psi | 88% | 2825 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,085 psi | 55% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,390 psi | 87% | 2713 fps | 99.9% |
| IMR 3031 | <<locked>> | 90% | 57,319 psi | 90% | 2746 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 57,290 psi | 90% | 2730 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,476 psi | 85% | 2664 fps | 97% |
| IMR 4198 | <<locked>> | 84% | 57,609 psi | 90% | 2615 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,663 psi | 81% | 2671 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 98% | 57,029 psi | 89% | 2730 fps | 97.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,965 psi | 77% | 2680 fps | 98.6% |
| IMR 4895 | <<locked>> | 92% | 56,275 psi | 88% | 2772 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 56,144 psi | 88% | 2703 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,362 psi | 88% | 2694 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,594 psi | 89% | 2730 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,710 psi | 89% | 2680 fps | 99.9% |
| Lovex S062 | <<locked>> | 94% | 56,956 psi | 89% | 2726 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,956 psi | 88% | 2720 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,345 psi | 84% | 2703 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 55,608 psi | 87% | 2697 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,101 psi | 88% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 94% | 57,479 psi | 90% | 2779 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 50,894 psi | 80% | 2726 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 92% | 54,433 psi | 85% | 2753 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,009 psi | 78% | 2720 fps | 97.2% |
| Ramshot TAC | <<locked>> | 88% | 56,507 psi | 89% | 2723 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,912 psi | 88% | 2740 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 86% | 57,305 psi | 90% | 2710 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,621 psi | 56% | 1670 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,782 psi | 87% | 2690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,333 psi | 88% | 2730 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,998 psi | 86% | 2802 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,534 psi | 85% | 2838 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2756 fps | 98.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,517 psi | 81% | 2779 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 88% | 56,710 psi | 89% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,173 psi | 88% | 2697 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,360 psi | 85% | 2723 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,085 psi | 86% | 2700 fps | 96.5% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,956 psi | 88% | 2720 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,594 psi | 89% | 2730 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,956 psi | 89% | 2726 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,345 psi | 84% | 2703 fps | 97.1% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,463 psi | 87% | 2661 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,173 psi | 88% | 2785 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,288 psi | 87% | 2638 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,752 psi | 86% | 2700 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,274 psi | 87% | 2723 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 57,537 psi | 90% | 2641 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 57,479 psi | 90% | 2638 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,811 psi | 89% | 2680 fps | 97.3% |
| Somchem S321 | <<locked>> | 86% | 57,464 psi | 90% | 2740 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 56,623 psi | 89% | 2638 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,331 psi | 85% | 2694 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 54,737 psi | 86% | 2723 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,527 psi | 71% | 2680 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 86% | 57,246 psi | 90% | 2605 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,566 psi | 90% | 2625 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,622 psi | 87% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 56,536 psi | 89% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,347 psi | 88% | 2703 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2726 fps | 99% |
| Vihtavuori N530 | <<locked>> | 88% | 56,782 psi | 89% | 2707 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,795 psi | 86% | 2677 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,605 psi | 82% | 2730 fps | 98.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,218 psi | 60% | 2552 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,317 psi | 85% | 2710 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,391 psi | 88% | 2753 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,926 psi | 86% | 2789 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,056 psi | 86% | 2730 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% | 45,339 psi | 71% | 2480 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,400 psi | 77% | 2585 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,869 psi | 59% | 2405 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,541 psi | 70% | 2543 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,417 psi | 82% | 2618 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 35,810 psi | 56% | 2392 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,376 psi | 57% | 2467 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 53,432 psi | 84% | 2552 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,853 psi | 84% | 2575 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 41,771 psi | 65% | 2500 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 35,447 psi | 56% | 2356 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,787 psi | 69% | 2513 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 43,424 psi | 68% | 2507 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,024 psi | 80% | 2703 fps | 99.8% |
| Alliant Power Pro 2000-MR | 69.6 gr | 80% | 37,594 psi | 59% | 2513 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,853 psi | 55% | 2379 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,111 psi | 80% | 2572 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,550 psi | 59% | 2434 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,970 psi | 58% | 2477 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 82% | 32,126 psi | 50% | 2388 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,560 psi | 49% | 2375 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,649 psi | 83% | 2552 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,625 psi | 64% | 2497 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 34,316 psi | 54% | 2379 fps | 97.4% |
| Bofors RP7 | <<locked>> | 94% | 48,660 psi | 76% | 2598 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,687 psi | 72% | 2507 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,177 psi | 66% | 2530 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,456 psi | 73% | 2664 fps | 98.7% |
| Hodgdon H322 | <<locked>> | 80% | 49,966 psi | 78% | 2605 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,691 psi | 79% | 2628 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,739 psi | 59% | 2431 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 94% | 44,962 psi | 70% | 2625 fps | 95% |
| Hodgdon H4350 | <<locked>> | 96% | 52,533 psi | 82% | 2700 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 42,090 psi | 66% | 2513 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,850 psi | 50% | 2329 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,927 psi | 59% | 2480 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 96% | 48,660 psi | 76% | 2703 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,107 psi | 41% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,306 psi | 63% | 2464 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 41,466 psi | 65% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,188 psi | 58% | 2388 fps | 96.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,095 psi | 75% | 2562 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 51,372 psi | 81% | 2533 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,428 psi | 76% | 2618 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,630 psi | 75% | 2585 fps | 95.4% |
| IMR 4831 | <<locked>> | 90% | 35,360 psi | 55% | 2425 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,450 psi | 60% | 2467 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 43,787 psi | 69% | 2513 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 49,226 psi | 77% | 2592 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,524 psi | 64% | 2484 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,090 psi | 66% | 2444 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 37,057 psi | 58% | 2395 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 41,278 psi | 65% | 2477 fps | 95.4% |
| Lovex S070 | <<locked>> | 94% | 44,353 psi | 70% | 2556 fps | 95% |
| Norma 201 | <<locked>> | 80% | 40,814 psi | 64% | 2457 fps | 99% |
| Norma 202 | <<locked>> | 80% | 41,075 psi | 64% | 2470 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,941 psi | 58% | 2425 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 36,883 psi | 58% | 2467 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 36,230 psi | 57% | 2431 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 96% | 43,918 psi | 69% | 2612 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 43,627 psi | 68% | 2513 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,844 psi | 67% | 2530 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,268 psi | 74% | 2559 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,498 psi | 42% | 1493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,950 psi | 77% | 2589 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,526 psi | 68% | 2520 fps | 95.2% |
| ReloadSwiss RS 52 | 67.5 gr | 80% | 38,957 psi | 61% | 2526 fps | 97.1% |
| ReloadSwiss RS 60 | 68.6 gr | 80% | 32,053 psi | 50% | 2398 fps | 98.2% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,245 psi | 57% | 2480 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,465 psi | 62% | 2546 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 44,802 psi | 70% | 2503 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,899 psi | 61% | 2411 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 32,314 psi | 51% | 2326 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 48,660 psi | 76% | 2598 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,278 psi | 65% | 2477 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,524 psi | 64% | 2484 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,057 psi | 58% | 2395 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 94% | 44,353 psi | 70% | 2556 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,750 psi | 81% | 2608 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,286 psi | 52% | 2369 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,866 psi | 81% | 2592 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,669 psi | 65% | 2484 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,219 psi | 63% | 2470 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,366 psi | 66% | 2421 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,070 psi | 55% | 2293 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,659 psi | 73% | 2530 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 47,036 psi | 74% | 2585 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,872 psi | 66% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,365 psi | 65% | 2484 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 33,214 psi | 52% | 2333 fps | 96.4% |
| Somchem S365 | <<locked>> | 84% | 27,311 psi | 43% | 2264 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 47,935 psi | 75% | 2480 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,583 psi | 67% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,101 psi | 60% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,914 psi | 61% | 2408 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,633 psi | 50% | 2277 fps | 97.3% |
| Vihtavuori N160 | <<locked>> | 88% | 36,303 psi | 57% | 2421 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 43,758 psi | 69% | 2507 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 37,405 psi | 59% | 2398 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 37,927 psi | 59% | 2470 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 33,634 psi | 53% | 2448 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,140 psi | 50% | 2300 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 43,018 psi | 67% | 2549 fps | 99.7% |
| Winchester 760 | <<locked>> | 94% | 45,121 psi | 71% | 2628 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,465 psi | 62% | 2474 fps | 98.3% |
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 105 powders for .375 Weath. Mag. loaded with the .375 | 260gr | Nosler Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,864 fps. Accurate 4350 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 260.0 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, ReloadSwiss RS 52 rank at the top here: for .375 Weath. Mag. with the .375 | 260gr | Nosler Solid 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.