Load Specifications
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:1:15.0
Load data in caliber .300 WSM with .308 | 180gr | Woodleigh PP SN 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 70, Alliant Reloder-16 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 57,551 psi | 90% | 2766 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,041 psi | 85% | 2726 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,472 psi | 78% | 2753 fps | 98.9% |
| Accurate 4064 | <<locked>> | 86% | 55,027 psi | 86% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,434 psi | 87% | 2861 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 54,447 psi | 85% | 2789 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,506 psi | 87% | 2792 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,666 psi | 89% | 2900 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,637 psi | 89% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,592 psi | 86% | 2913 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 56,623 psi | 89% | 2900 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,144 psi | 88% | 2815 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,449 psi | 88% | 2838 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,275 psi | 88% | 2917 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,682 psi | 90% | 2946 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,782 psi | 87% | 2890 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,211 psi | 77% | 2828 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,441 psi | 73% | 2776 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,669 psi | 64% | 2687 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,837 psi | 83% | 2959 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,215 psi | 85% | 2805 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 57,000 psi | 89% | 2831 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,211 psi | 77% | 2828 fps | 96.9% |
| Bofors RP7 | <<locked>> | 92% | 56,449 psi | 88% | 2812 fps | 98.7% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,536 psi | 89% | 2818 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 57,682 psi | 90% | 2851 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,564 psi | 87% | 2881 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 94% | 55,970 psi | 88% | 2844 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 82% | 55,027 psi | 86% | 2799 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,550 psi | 89% | 2841 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,056 psi | 86% | 2835 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,201 psi | 85% | 2894 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1726 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,143 psi | 86% | 2785 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 57,667 psi | 90% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,725 psi | 90% | 2815 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,724 psi | 89% | 2792 fps | 99.1% |
| IMR 4350 | <<locked>> | 96% | 57,130 psi | 90% | 2844 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,810 psi | 86% | 2792 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,594 psi | 89% | 2861 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,491 psi | 85% | 2815 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,246 psi | 88% | 2831 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 82% | 56,637 psi | 89% | 2785 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,723 psi | 86% | 2766 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,797 psi | 89% | 2762 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,114 psi | 86% | 2769 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,607 psi | 86% | 2785 fps | 99.6% |
| Lovex S070 | <<locked>> | 94% | 55,724 psi | 87% | 2825 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,031 psi | 64% | 2605 fps | 97.3% |
| Norma 201 | <<locked>> | 84% | 56,608 psi | 89% | 2782 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,261 psi | 90% | 2779 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,738 psi | 87% | 2825 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,331 psi | 85% | 2841 fps | 97.5% |
| Norma MRPᴾ | <<locked>> | 100% | 52,083 psi | 82% | 2910 fps | 98.7% |
| Norma URP | <<locked>> | 94% | 54,186 psi | 85% | 2848 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 56,478 psi | 89% | 2851 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,593 psi | 87% | 2933 fps | 97% |
| Ramshot Hunter | <<locked>> | 96% | 56,666 psi | 89% | 2900 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,196 psi | 76% | 2785 fps | 97.2% |
| Ramshot TAC | <<locked>> | 82% | 56,681 psi | 89% | 2812 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,826 psi | 89% | 2828 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 58% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 57,421 psi | 90% | 2831 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,421 psi | 90% | 2907 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 57,305 psi | 90% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,114 psi | 86% | 2884 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,085 psi | 85% | 2913 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 57,392 psi | 90% | 2756 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,188 psi | 90% | 2782 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,811 psi | 89% | 2825 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,940 psi | 86% | 2818 fps | 96.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,984 psi | 86% | 2877 fps | 98% |
| Rottweil R 907 | <<locked>> | 92% | 56,449 psi | 88% | 2812 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,607 psi | 86% | 2785 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,723 psi | 86% | 2766 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,114 psi | 86% | 2769 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,724 psi | 87% | 2825 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,969 psi | 86% | 2835 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,477 psi | 87% | 2792 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,347 psi | 88% | 2812 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,740 psi | 90% | 2713 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,868 psi | 86% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,433 psi | 85% | 2740 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 2871 fps | 97.9% |
| Somchem S335 | <<locked>> | 84% | 57,188 psi | 90% | 2710 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,158 psi | 86% | 2779 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,971 psi | 89% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 56,681 psi | 89% | 2812 fps | 96% |
| Somchem S365 | <<locked>> | 98% | 56,826 psi | 89% | 2900 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,579 psi | 87% | 2851 fps | 98.6% |
| Unknown powder | <<locked>> | 92% | 55,114 psi | 86% | 2854 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 86% | 57,580 psi | 90% | 2690 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,363 psi | 90% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,188 psi | 90% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,940 psi | 86% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,376 psi | 87% | 2822 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,137 psi | 72% | 2684 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 86% | 56,681 psi | 89% | 2776 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,854 psi | 88% | 2871 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,808 psi | 81% | 2848 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,202 psi | 88% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,564 psi | 87% | 2881 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,843 psi | 66% | 2818 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,954 psi | 85% | 2818 fps | 97.5% |
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 2495 | <<locked>> | 80% | 53,954 psi | 85% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,742 psi | 65% | 2516 fps | 95.5% |
| Accurate 3100 | <<locked>> | 90% | 35,143 psi | 55% | 2480 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 45,730 psi | 72% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,389 psi | 54% | 2477 fps | 97% |
| ADI AR 2206H | <<locked>> | 80% | 51,242 psi | 80% | 2740 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,540 psi | 68% | 2595 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 43,685 psi | 68% | 2674 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,345 psi | 84% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,427 psi | 74% | 2795 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 43,801 psi | 69% | 2677 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,729 psi | 69% | 2618 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,818 psi | 73% | 2684 fps | 99.8% |
| Alliant Reloder-16 | 52.6 gr | 80% | 33,881 psi | 53% | 2484 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,145 psi | 60% | 2608 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,265 psi | 68% | 2671 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,207 psi | 68% | 2717 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,339 psi | 41% | 2297 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,765 psi | 53% | 2516 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 86% | 32,126 psi | 50% | 2520 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,821 psi | 80% | 2753 fps | 99.9% |
| Bofors RP3 | <<locked>> | 80% | 43,671 psi | 68% | 2625 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 43,207 psi | 68% | 2717 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 41,437 psi | 65% | 2549 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,953 psi | 83% | 2766 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,208 psi | 69% | 2631 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 80% | 39,566 psi | 62% | 2592 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 43,714 psi | 69% | 2631 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,822 psi | 81% | 2749 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,415 psi | 49% | 2385 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,225 psi | 76% | 2730 fps | 100% |
| Hodgdon Superformance | 62.9 gr | 84% | 40,727 psi | 64% | 2644 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,963 psi | 42% | 1542 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,890 psi | 72% | 2638 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 47,805 psi | 75% | 2664 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,801 psi | 67% | 2572 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,192 psi | 66% | 2539 fps | 96.5% |
| IMR 4350 | <<locked>> | 84% | 39,233 psi | 61% | 2526 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,263 psi | 63% | 2526 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 30,197 psi | 47% | 2356 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 48,022 psi | 75% | 2713 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,895 psi | 83% | 2779 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 53,345 psi | 84% | 2736 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,169 psi | 80% | 2713 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,430 psi | 79% | 2667 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,876 psi | 72% | 2625 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,840 psi | 59% | 2480 fps | 96.7% |
| Lovex S070 | <<locked>> | 82% | 38,363 psi | 60% | 2510 fps | 95.6% |
| Lovex S071 | <<locked>> | 94% | 33,939 psi | 53% | 2451 fps | 95% |
| Norma 201 | <<locked>> | 80% | 50,096 psi | 79% | 2684 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,647 psi | 79% | 2687 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,195 psi | 72% | 2674 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 44,353 psi | 70% | 2671 fps | 95.1% |
| Norma MRP | <<locked>> | 92% | 39,711 psi | 62% | 2671 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 34,432 psi | 54% | 2474 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 80% | 46,151 psi | 72% | 2690 fps | 99.9% |
| Ramshot Grand | <<locked>> | 96% | 47,921 psi | 75% | 2802 fps | 95% |
| Ramshot Hunter | <<locked>> | 82% | 35,621 psi | 56% | 2510 fps | 95.4% |
| Ramshot Magnum | <<locked>> | 96% | 41,350 psi | 65% | 2654 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 53,258 psi | 83% | 2759 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,287 psi | 84% | 2776 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 43% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,367 psi | 70% | 2615 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,096 psi | 79% | 2795 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,538 psi | 64% | 2667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,924 psi | 53% | 2490 fps | 96.5% |
| ReloadSwiss RS 70 | 57.6 gr | 80% | 33,460 psi | 52% | 2493 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 54,070 psi | 85% | 2710 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,659 psi | 75% | 2638 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,307 psi | 65% | 2575 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 48,283 psi | 76% | 2707 fps | 95% |
| Rottweil R 905 | <<locked>> | 94% | 44,875 psi | 70% | 2703 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 41,437 psi | 65% | 2549 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,840 psi | 59% | 2480 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,169 psi | 80% | 2713 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,876 psi | 72% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,363 psi | 60% | 2510 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,177 psi | 66% | 2625 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,938 psi | 81% | 2740 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,574 psi | 78% | 2710 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,981 psi | 80% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,917 psi | 67% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,072 psi | 58% | 2425 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,440 psi | 70% | 2700 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 50,763 psi | 80% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,735 psi | 81% | 2730 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,742 psi | 65% | 2575 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 53,113 psi | 83% | 2756 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 30,966 psi | 49% | 2431 fps | 98.9% |
| Somchem S385 | <<locked>> | 90% | 40,132 psi | 63% | 2582 fps | 95.3% |
| Unknown powder | <<locked>> | 80% | 37,231 psi | 58% | 2530 fps | 97.1% |
| Vihtavuori N133 | <<locked>> | 80% | 48,327 psi | 76% | 2566 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,659 psi | 75% | 2608 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,355 psi | 74% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,737 psi | 56% | 2428 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 37,275 psi | 58% | 2507 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 98% | 43,323 psi | 68% | 2631 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 46,891 psi | 73% | 2631 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,724 psi | 59% | 2546 fps | 97.7% |
| Vihtavuori N555 | <<locked>> | 82% | 28,616 psi | 45% | 2369 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,143 psi | 55% | 2451 fps | 99% |
| Winchester 760 | <<locked>> | 80% | 39,566 psi | 62% | 2592 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,382 psi | 41% | 2375 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,468 psi | 68% | 2638 fps | 95% |
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 .300 WSM loaded with the .308 | 180gr | Woodleigh PP SN. Alliant Reloder-26 delivers the highest muzzle velocity at 2,959 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,959 fps. Accurate 3100 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 (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:15.0 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 70, Alliant Reloder-16, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 180gr | 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.