Load Specifications
Bullet Manufacturer:Woodleigh
Bullet Weight:235 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
Load data in caliber .375 Weath. Mag. with .375 | 235gr | Woodleigh PP SN bullet and 99 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 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>> | 88% | 57,203 psi | 90% | 2805 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 55,666 psi | 87% | 2831 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,013 psi | 86% | 2822 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 57,638 psi | 90% | 2894 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 54,781 psi | 86% | 2864 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,676 psi | 79% | 2874 fps | 98.3% |
| Accurate LT-30 | <<locked>> | 82% | 56,072 psi | 88% | 2746 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 56,521 psi | 89% | 2772 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 56,043 psi | 88% | 2897 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 96% | 57,000 psi | 89% | 2890 fps | 99.4% |
| ADI AR 2219 | <<locked>> | 82% | 57,435 psi | 90% | 2871 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,332 psi | 87% | 2854 fps | 100% |
| Alliant AR-Comp | <<locked>> | 88% | 55,593 psi | 87% | 2835 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 57,014 psi | 89% | 2959 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 55,651 psi | 87% | 3009 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 56,652 psi | 89% | 2913 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 56,855 psi | 89% | 2812 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 57,435 psi | 90% | 2936 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,429 psi | 77% | 2877 fps | 98.4% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 3035 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,405 psi | 87% | 2743 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 55,985 psi | 88% | 2910 fps | 99.1% |
| Bofors RP3 | <<locked>> | 96% | 57,392 psi | 90% | 2933 fps | 100% |
| Hodgdon Benchmark | <<locked>> | 88% | 57,232 psi | 90% | 2838 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 54,375 psi | 85% | 2881 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 86% | 56,304 psi | 88% | 2976 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 84% | 55,927 psi | 88% | 2851 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 57,159 psi | 90% | 2877 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 54,984 psi | 86% | 2887 fps | 98.5% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 53,853 psi | 84% | 2923 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 90% | 56,594 psi | 89% | 2907 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,513 psi | 71% | 2756 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 55,753 psi | 87% | 2940 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,259 psi | 87% | 2959 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,070 psi | 55% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,607 psi | 86% | 2861 fps | 99.7% |
| IMR 3031 | <<locked>> | 90% | 56,217 psi | 88% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,536 psi | 89% | 2877 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,159 psi | 90% | 2858 fps | 96.8% |
| IMR 4198 | <<locked>> | 84% | 56,956 psi | 89% | 2769 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 56,318 psi | 88% | 2874 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,066 psi | 75% | 2812 fps | 97.9% |
| IMR 4895 | <<locked>> | 92% | 55,390 psi | 87% | 2917 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 88% | 55,332 psi | 87% | 2854 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 55,463 psi | 87% | 2838 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 55,550 psi | 87% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 56,028 psi | 88% | 2828 fps | 99.6% |
| Lovex S062 | <<locked>> | 94% | 56,144 psi | 88% | 2874 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,274 psi | 87% | 2864 fps | 97.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2841 fps | 96.2% |
| Norma 201 | <<locked>> | 90% | 54,795 psi | 86% | 2844 fps | 99.9% |
| Norma 202 | <<locked>> | 90% | 55,390 psi | 87% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 94% | 56,536 psi | 89% | 2923 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 50,053 psi | 78% | 2864 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 94% | 57,348 psi | 90% | 2949 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,211 psi | 77% | 2851 fps | 96.2% |
| Ramshot TAC | <<locked>> | 88% | 55,825 psi | 87% | 2867 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,216 psi | 87% | 2887 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 86% | 56,507 psi | 89% | 2854 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,331 psi | 55% | 1781 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 54,795 psi | 86% | 2835 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 55,477 psi | 87% | 2867 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,041 psi | 85% | 2949 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 57,435 psi | 90% | 3041 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,140 psi | 79% | 2890 fps | 98% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,763 psi | 80% | 2913 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 88% | 55,956 psi | 88% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,288 psi | 87% | 2841 fps | 100% |
| Rottweil R 903 | <<locked>> | 98% | 57,029 psi | 89% | 2920 fps | 99.9% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,274 psi | 87% | 2864 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 55,550 psi | 87% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 56,144 psi | 88% | 2874 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2841 fps | 96.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 54,549 psi | 85% | 2805 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 55,288 psi | 87% | 2930 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 57,725 psi | 90% | 2831 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,012 psi | 85% | 2841 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 54,534 psi | 85% | 2867 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 56,826 psi | 89% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 56,565 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000ᴾ | <<locked>> | 100% | 56,101 psi | 88% | 2818 fps | 96.6% |
| Somchem S321 | <<locked>> | 86% | 56,753 psi | 89% | 2890 fps | 100% |
| Somchem S335 | <<locked>> | 90% | 55,840 psi | 88% | 2789 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 57,174 psi | 90% | 2890 fps | 99.7% |
| Somchem S355 | <<locked>> | 98% | 57,479 psi | 90% | 2920 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,701 psi | 70% | 2812 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 86% | 56,565 psi | 89% | 2759 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 56,840 psi | 89% | 2776 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 54,549 psi | 85% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 55,811 psi | 87% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,550 psi | 87% | 2848 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2864 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 88% | 55,869 psi | 88% | 2851 fps | 100% |
| Vihtavuori N540 | <<locked>> | 94% | 57,508 psi | 90% | 2871 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 51,866 psi | 81% | 2871 fps | 98.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 53,693 psi | 84% | 2851 fps | 99.8% |
| Winchester 748 | <<locked>> | 88% | 55,448 psi | 87% | 2900 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 54,056 psi | 85% | 2927 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,288 psi | 85% | 2877 fps | 99.8% |
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% | 44,657 psi | 70% | 2621 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,646 psi | 76% | 2726 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,144 psi | 58% | 2533 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,743 psi | 69% | 2677 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 35,143 psi | 55% | 2516 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 38,247 psi | 60% | 2641 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 52,953 psi | 83% | 2703 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 53,330 psi | 84% | 2726 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 40,959 psi | 64% | 2628 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 37,217 psi | 58% | 2530 fps | 95.5% |
| ADI AR 2219 | <<locked>> | 80% | 53,708 psi | 84% | 2818 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,989 psi | 67% | 2644 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 42,685 psi | 67% | 2648 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 49,980 psi | 78% | 2848 fps | 99.4% |
| Alliant Power Pro 2000-MR | 76.1 gr | 82% | 39,552 psi | 62% | 2697 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,214 psi | 54% | 2497 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,314 psi | 79% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,811 psi | 58% | 2556 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 38,696 psi | 61% | 2654 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 84% | 33,707 psi | 53% | 2559 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 51,982 psi | 81% | 2697 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,958 psi | 63% | 2625 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 33,634 psi | 53% | 2497 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,020 psi | 71% | 2641 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,510 psi | 65% | 2661 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,527 psi | 71% | 2799 fps | 98% |
| Hodgdon H322 | <<locked>> | 80% | 49,255 psi | 77% | 2753 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 49,980 psi | 78% | 2772 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 39,523 psi | 62% | 2608 fps | 95% |
| Hodgdon H414 | <<locked>> | 98% | 50,401 psi | 79% | 2864 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 41,321 psi | 65% | 2641 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,286 psi | 52% | 2493 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,159 psi | 58% | 2602 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 98% | 51,474 psi | 81% | 2897 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,034 psi | 41% | 1555 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,711 psi | 62% | 2595 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 40,611 psi | 64% | 2648 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,622 psi | 57% | 2513 fps | 95.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,488 psi | 79% | 2749 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 50,560 psi | 79% | 2680 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,893 psi | 78% | 2769 fps | 95.2% |
| IMR 4831 | <<locked>> | 94% | 39,465 psi | 62% | 2651 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 37,681 psi | 59% | 2589 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 42,989 psi | 67% | 2644 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 48,486 psi | 76% | 2733 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 39,755 psi | 62% | 2612 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 41,379 psi | 65% | 2572 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 36,361 psi | 57% | 2516 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 43,178 psi | 68% | 2654 fps | 95.1% |
| Lovex S070 | <<locked>> | 98% | 49,429 psi | 77% | 2789 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 40,176 psi | 63% | 2585 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 40,379 psi | 63% | 2602 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 36,201 psi | 57% | 2546 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 38,638 psi | 61% | 2641 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 35,679 psi | 56% | 2556 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 98% | 46,108 psi | 72% | 2795 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 43,004 psi | 67% | 2641 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,177 psi | 66% | 2661 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,470 psi | 73% | 2690 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 41% | 1594 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,283 psi | 76% | 2733 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,745 psi | 72% | 2703 fps | 95% |
| ReloadSwiss RS 52 | 72 gr | 80% | 38,159 psi | 60% | 2654 fps | 96% |
| ReloadSwiss RS 60 | 73.1 gr | 80% | 31,415 psi | 49% | 2510 fps | 97% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 40,727 psi | 64% | 2713 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 44,367 psi | 70% | 2789 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 43,990 psi | 69% | 2638 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 38,232 psi | 60% | 2536 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 31,662 psi | 50% | 2438 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,178 psi | 68% | 2654 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,755 psi | 62% | 2612 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 36,361 psi | 57% | 2516 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 98% | 49,429 psi | 77% | 2789 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,097 psi | 80% | 2753 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,911 psi | 55% | 2539 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 50,981 psi | 80% | 2736 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,031 psi | 64% | 2608 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,552 psi | 62% | 2595 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,669 psi | 65% | 2552 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,418 psi | 54% | 2415 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,095 psi | 77% | 2710 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 46,311 psi | 73% | 2723 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 41,263 psi | 65% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,683 psi | 64% | 2612 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 32,619 psi | 51% | 2448 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 30,400 psi | 48% | 2477 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 47,152 psi | 74% | 2625 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,887 psi | 66% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,304 psi | 58% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,203 psi | 60% | 2536 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 31,009 psi | 49% | 2388 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 92% | 40,582 psi | 64% | 2648 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 43,062 psi | 67% | 2641 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 36,680 psi | 57% | 2520 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 39,798 psi | 62% | 2648 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 33,779 psi | 53% | 2467 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 42,293 psi | 66% | 2680 fps | 99.4% |
| Winchester 760 | <<locked>> | 98% | 50,560 psi | 79% | 2871 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,798 psi | 61% | 2598 fps | 97.5% |
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 99 powders for .375 Weath. Mag. loaded with the .375 | 235gr | Woodleigh PP SN. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,041 fps; across all powders the maximum-charge window runs from 1,742 fps to 3,041 fps. Accurate 4350 gives the best case fill at 100 %, and 99 of the 99 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. 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, ReloadSwiss RS 52 rank at the top here: for .375 Weath. Mag. with the .375 | 235gr | Woodleigh PP SN 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.