Load Specifications
Bullet:.308 | 180gr | Woodleigh HS
Bullet Manufacturer:Woodleigh
Bullet Weight:180 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 WSM load data
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:81.3 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:13.5
Load data in caliber .300 WSM with .308 | 180gr | Woodleigh HS bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-16.
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>> | 82% | 57,522 psi | 90% | 2700 fps | 100% |
| Accurate 2495 | <<locked>> | 82% | 56,246 psi | 88% | 2743 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,884 psi | 89% | 2785 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,507 psi | 89% | 2753 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,819 psi | 75% | 2720 fps | 98.6% |
| Accurate 4064 | <<locked>> | 88% | 57,145 psi | 90% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,479 psi | 90% | 2884 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 56,536 psi | 89% | 2812 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,418 psi | 85% | 2769 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,042 psi | 86% | 2864 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,361 psi | 87% | 2759 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,145 psi | 90% | 2730 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,985 psi | 89% | 2943 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,998 psi | 86% | 2864 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,694 psi | 86% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,230 psi | 87% | 2812 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,694 psi | 86% | 2884 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,043 psi | 88% | 2917 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,201 psi | 85% | 2854 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,718 psi | 75% | 2792 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,078 psi | 71% | 2743 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,421 psi | 62% | 2651 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 2923 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,739 psi | 89% | 2835 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 55,506 psi | 87% | 2805 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,718 psi | 75% | 2792 fps | 96.3% |
| Bofors RP7 | <<locked>> | 92% | 55,158 psi | 86% | 2785 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,811 psi | 89% | 2740 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,056 psi | 86% | 2789 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,028 psi | 88% | 2818 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,041 psi | 85% | 2848 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 94% | 54,708 psi | 86% | 2815 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 84% | 57,203 psi | 90% | 2822 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,911 psi | 86% | 2812 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,363 psi | 90% | 2861 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,782 psi | 89% | 2923 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 56% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,363 psi | 90% | 2808 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,449 psi | 88% | 2779 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,492 psi | 89% | 2789 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 55,666 psi | 87% | 2766 fps | 98.9% |
| IMR 4350 | <<locked>> | 96% | 55,738 psi | 87% | 2815 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,942 psi | 89% | 2815 fps | 99% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,969 psi | 86% | 2835 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 56,681 psi | 89% | 2841 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,361 psi | 87% | 2759 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,884 psi | 89% | 2785 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,651 psi | 87% | 2736 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,305 psi | 90% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,710 psi | 89% | 2808 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 54,476 psi | 85% | 2795 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,653 psi | 62% | 2569 fps | 96.8% |
| Norma 201 | <<locked>> | 84% | 55,317 psi | 87% | 2756 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,941 psi | 88% | 2753 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,520 psi | 85% | 2799 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,478 psi | 89% | 2864 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 50,357 psi | 79% | 2874 fps | 98.3% |
| Norma URP | <<locked>> | 96% | 56,362 psi | 88% | 2871 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,114 psi | 86% | 2825 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,925 psi | 85% | 2894 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 96% | 54,969 psi | 86% | 2867 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,746 psi | 73% | 2749 fps | 96.5% |
| Ramshot TAC | <<locked>> | 82% | 55,666 psi | 87% | 2789 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,419 psi | 87% | 2799 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,579 psi | 57% | 1755 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,188 psi | 88% | 2805 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,811 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,593 psi | 87% | 2910 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,392 psi | 90% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,260 psi | 88% | 2940 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,260 psi | 88% | 2733 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,927 psi | 88% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,637 psi | 87% | 2802 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,087 psi | 89% | 2841 fps | 96.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,229 psi | 83% | 2838 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 92% | 55,158 psi | 86% | 2785 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,710 psi | 89% | 2808 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,884 psi | 89% | 2785 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,305 psi | 90% | 2792 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,476 psi | 85% | 2795 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,058 psi | 89% | 2858 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,375 psi | 85% | 2766 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,984 psi | 86% | 2785 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,420 psi | 88% | 2687 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,203 psi | 90% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,797 psi | 89% | 2762 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 2835 fps | 97.4% |
| Somchem S335 | <<locked>> | 84% | 55,956 psi | 88% | 2687 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,853 psi | 84% | 2753 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,535 psi | 87% | 2795 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,853 psi | 86% | 2871 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 2818 fps | 98.3% |
| Unknown powder | <<locked>> | 94% | 57,014 psi | 89% | 2874 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 86% | 56,521 psi | 89% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,202 psi | 88% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,927 psi | 88% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,087 psi | 89% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,682 psi | 90% | 2844 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,889 psi | 70% | 2654 fps | 96% |
| Vihtavuori N540 | <<locked>> | 86% | 55,535 psi | 87% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,288 psi | 85% | 2838 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,227 psi | 79% | 2818 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,679 psi | 86% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,041 psi | 85% | 2848 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,379 psi | 63% | 2779 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2841 fps | 97.7% |
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% | 54,012 psi | 85% | 2654 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 52,678 psi | 83% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,142 psi | 83% | 2736 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 40,799 psi | 64% | 2487 fps | 95% |
| Accurate 3100 | <<locked>> | 92% | 36,332 psi | 57% | 2500 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 44,585 psi | 70% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,243 psi | 52% | 2444 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 80% | 49,995 psi | 78% | 2710 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,598 psi | 67% | 2569 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 45,440 psi | 71% | 2700 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,083 psi | 82% | 2710 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,476 psi | 84% | 2684 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,050 psi | 72% | 2762 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 45,281 psi | 71% | 2697 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,540 psi | 67% | 2589 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,585 psi | 71% | 2654 fps | 99.6% |
| Alliant Reloder-16 | 51.3 gr | 80% | 33,025 psi | 52% | 2454 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,130 psi | 58% | 2582 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,701 psi | 70% | 2687 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,788 psi | 70% | 2740 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,224 psi | 43% | 2316 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,853 psi | 55% | 2539 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,272 psi | 52% | 2546 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,516 psi | 78% | 2723 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 42,656 psi | 67% | 2598 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,788 psi | 70% | 2740 fps | 95.5% |
| Bofors RP7 | <<locked>> | 82% | 40,364 psi | 63% | 2520 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,490 psi | 84% | 2690 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,488 psi | 81% | 2736 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,294 psi | 68% | 2608 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 80% | 38,334 psi | 60% | 2559 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 42,641 psi | 67% | 2602 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 50,502 psi | 79% | 2720 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,574 psi | 48% | 2359 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,992 psi | 74% | 2703 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 39,726 psi | 62% | 2615 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,977 psi | 42% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,889 psi | 70% | 2612 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 46,760 psi | 73% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,800 psi | 66% | 2546 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,307 psi | 65% | 2513 fps | 96.1% |
| IMR 4350 | <<locked>> | 86% | 40,930 psi | 64% | 2556 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,407 psi | 62% | 2500 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 31,140 psi | 49% | 2375 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 46,731 psi | 73% | 2684 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 80% | 52,083 psi | 82% | 2710 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,850 psi | 78% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,472 psi | 78% | 2644 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,860 psi | 70% | 2602 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,970 psi | 58% | 2454 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 37,318 psi | 58% | 2480 fps | 95.1% |
| Lovex S071 | <<locked>> | 96% | 34,867 psi | 55% | 2467 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 49,066 psi | 77% | 2661 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,327 psi | 77% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,933 psi | 70% | 2641 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 46,064 psi | 72% | 2694 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 41,089 psi | 64% | 2694 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 33,344 psi | 52% | 2444 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 44,817 psi | 70% | 2661 fps | 99.7% |
| Ramshot Grand | <<locked>> | 98% | 50,140 psi | 79% | 2828 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 84% | 36,970 psi | 58% | 2536 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 43,207 psi | 68% | 2680 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 51,967 psi | 81% | 2730 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,924 psi | 81% | 2746 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 43% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,323 psi | 68% | 2589 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,733 psi | 76% | 2766 fps | 99.8% |
| ReloadSwiss RS 60 | 55.3 gr | 80% | 39,465 psi | 62% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,895 psi | 52% | 2457 fps | 96% |
| ReloadSwiss RS 70 | 57.5 gr | 82% | 34,766 psi | 54% | 2516 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 53,127 psi | 83% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,601 psi | 73% | 2612 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,074 psi | 63% | 2546 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 50,256 psi | 79% | 2733 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 94% | 43,685 psi | 68% | 2674 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 40,364 psi | 63% | 2520 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,970 psi | 58% | 2454 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,850 psi | 78% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,860 psi | 70% | 2602 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,318 psi | 58% | 2480 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,089 psi | 64% | 2595 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,589 psi | 79% | 2707 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,399 psi | 76% | 2680 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,864 psi | 78% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,916 psi | 66% | 2470 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,435 psi | 60% | 2448 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,265 psi | 68% | 2667 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 49,777 psi | 78% | 2602 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,357 psi | 79% | 2700 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,785 psi | 64% | 2549 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,965 psi | 47% | 2398 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 41,597 psi | 65% | 2605 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 36,143 psi | 57% | 2500 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 80% | 47,195 psi | 74% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,485 psi | 73% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,340 psi | 73% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,780 psi | 55% | 2402 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 36,187 psi | 57% | 2474 fps | 97.2% |
| Vihtavuori N165 | <<locked>> | 98% | 42,105 psi | 66% | 2602 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 45,934 psi | 72% | 2612 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,796 psi | 58% | 2520 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 84% | 29,689 psi | 47% | 2395 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,156 psi | 54% | 2418 fps | 98.6% |
| Winchester 760 | <<locked>> | 80% | 38,334 psi | 60% | 2559 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,369 psi | 43% | 2402 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,382 psi | 71% | 2664 fps | 95.3% |
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 106 powders for .300 WSM loaded with the .308 | 180gr | Woodleigh HS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,943 fps. Accurate 3100 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 (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .300 WSM with the .308 | 180gr | Woodleigh HS 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.