Load Specifications
Bullet Manufacturer:Sellier & Bellot
Bullet Weight:168 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:1:12.5
Load data in caliber .300 WSM with .308 | 168gr | Sellier & Bellot HPBT bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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% | 55,274 psi | 87% | 2769 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,273 psi | 85% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,172 psi | 85% | 2848 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,172 psi | 85% | 2848 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 57,711 psi | 90% | 2858 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,078 psi | 71% | 2756 fps | 97.4% |
| Accurate 4064 | <<locked>> | 88% | 54,433 psi | 85% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,462 psi | 85% | 2936 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,447 psi | 85% | 2874 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,448 psi | 87% | 2877 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,518 psi | 82% | 2910 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,797 psi | 89% | 2874 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,563 psi | 86% | 2799 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,070 psi | 85% | 2995 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2907 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,767 psi | 87% | 2900 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,130 psi | 88% | 2920 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,317 psi | 87% | 2989 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,710 psi | 89% | 3025 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,590 psi | 81% | 2900 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,496 psi | 67% | 2782 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,182 psi | 76% | 2963 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,143 psi | 85% | 2890 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 56,507 psi | 89% | 2917 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,159 psi | 88% | 2887 fps | 98% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,766 psi | 86% | 2805 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,420 psi | 88% | 2907 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,579 psi | 89% | 2851 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,188 psi | 90% | 2930 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 55,056 psi | 86% | 2956 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 96% | 55,463 psi | 87% | 2917 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 55,056 psi | 86% | 2887 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,419 psi | 87% | 2913 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,795 psi | 86% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,740 psi | 90% | 3028 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1775 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,042 psi | 86% | 2871 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 57,203 psi | 90% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,624 psi | 90% | 2900 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,797 psi | 89% | 2874 fps | 98.5% |
| IMR 4350 | <<locked>> | 98% | 56,681 psi | 89% | 2917 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,520 psi | 85% | 2864 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,286 psi | 82% | 2884 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 57,595 psi | 90% | 2953 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,797 psi | 89% | 2874 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,433 psi | 85% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,927 psi | 89% | 2848 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,810 psi | 86% | 2854 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,522 psi | 90% | 2913 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 55,201 psi | 87% | 2900 fps | 98.5% |
| Norma 201 | <<locked>> | 86% | 56,434 psi | 88% | 2867 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,290 psi | 90% | 2867 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,376 psi | 87% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,638 psi | 90% | 2972 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 47,805 psi | 75% | 2913 fps | 97% |
| Norma URP | <<locked>> | 98% | 56,898 psi | 89% | 2972 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 56,043 psi | 88% | 2933 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,854 psi | 88% | 2976 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 56,869 psi | 89% | 2897 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,840 psi | 89% | 2917 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,450 psi | 90% | 2874 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 57% | 1814 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,305 psi | 90% | 2910 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,811 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,666 psi | 89% | 3025 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,288 psi | 85% | 2959 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,261 psi | 90% | 3045 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 84% | 57,522 psi | 90% | 2848 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,043 psi | 89% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,376 psi | 88% | 2907 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,459 psi | 79% | 2881 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 94% | 56,159 psi | 88% | 2887 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,522 psi | 90% | 2913 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,433 psi | 85% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,810 psi | 86% | 2854 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,201 psi | 87% | 2900 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,505 psi | 85% | 2917 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,535 psi | 87% | 2874 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,188 psi | 88% | 2897 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,317 psi | 85% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,868 psi | 86% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,201 psi | 85% | 2812 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,966 psi | 78% | 2877 fps | 96% |
| Somchem S335 | <<locked>> | 86% | 57,159 psi | 90% | 2799 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,187 psi | 86% | 2867 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,420 psi | 88% | 2904 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,274 psi | 87% | 2976 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,140 psi | 80% | 2861 fps | 97.1% |
| Unknown powder | <<locked>> | 94% | 54,418 psi | 85% | 2930 fps | 99.5% |
| Vihtavuori N130 | <<locked>> | 82% | 56,347 psi | 88% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,609 psi | 90% | 2782 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,971 psi | 89% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,956 psi | 89% | 2838 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,433 psi | 85% | 2835 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,969 psi | 86% | 2900 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 56,275 psi | 88% | 2877 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,492 psi | 89% | 2864 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,085 psi | 86% | 2946 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,311 psi | 74% | 2864 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,999 psi | 88% | 2894 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,056 psi | 86% | 2956 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,145 psi | 60% | 2802 fps | 99.8% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,505 psi | 84% | 2884 fps | 96.4% |
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% | 51,880 psi | 81% | 2723 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,657 psi | 70% | 2654 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,618 psi | 79% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,618 psi | 79% | 2795 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,570 psi | 70% | 2641 fps | 95.3% |
| Accurate 3100 | <<locked>> | 96% | 39,175 psi | 61% | 2644 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 42,264 psi | 66% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,562 psi | 53% | 2536 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 47,921 psi | 75% | 2769 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,654 psi | 64% | 2615 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 49,255 psi | 77% | 2851 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,024 psi | 78% | 2772 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,024 psi | 80% | 2749 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,034 psi | 69% | 2815 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,936 psi | 77% | 2851 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,582 psi | 64% | 2641 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,569 psi | 68% | 2707 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,576 psi | 53% | 2546 fps | 95.9% |
| Alliant Reloder-17 | 55.7 gr | 80% | 35,244 psi | 55% | 2618 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,240 psi | 76% | 2838 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,269 psi | 46% | 2454 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,707 psi | 53% | 2631 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,253 psi | 74% | 2776 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 40,567 psi | 64% | 2651 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,772 psi | 69% | 2671 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,547 psi | 81% | 2756 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,371 psi | 77% | 2799 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,055 psi | 83% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,292 psi | 65% | 2654 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 84% | 41,901 psi | 66% | 2720 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 46,079 psi | 72% | 2753 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 48,399 psi | 76% | 2779 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,066 psi | 46% | 2392 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,148 psi | 66% | 2707 fps | 99.7% |
| Hodgdon Superformance | 64.8 gr | 88% | 43,511 psi | 68% | 2776 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 42% | 1585 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,076 psi | 68% | 2667 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 44,382 psi | 70% | 2700 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,074 psi | 63% | 2595 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,061 psi | 66% | 2612 fps | 95.5% |
| IMR 4350 | <<locked>> | 90% | 44,164 psi | 69% | 2703 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,772 psi | 67% | 2654 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 31,473 psi | 49% | 2464 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 44,643 psi | 70% | 2736 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,024 psi | 78% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,485 psi | 74% | 2746 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,630 psi | 75% | 2700 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 42,931 psi | 67% | 2657 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,449 psi | 59% | 2546 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 40,509 psi | 63% | 2631 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 46,847 psi | 73% | 2717 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,282 psi | 74% | 2720 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,931 psi | 67% | 2694 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 50,183 psi | 79% | 2851 fps | 95.6% |
| Norma MRP | <<locked>> | 96% | 41,669 psi | 65% | 2789 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 33,750 psi | 53% | 2533 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 42,757 psi | 67% | 2710 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 37,492 psi | 59% | 2628 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 50,053 psi | 78% | 2785 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,617 psi | 78% | 2802 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,882 psi | 84% | 2825 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 42% | 1621 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,408 psi | 65% | 2631 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,253 psi | 72% | 2815 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,478 psi | 59% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,272 psi | 52% | 2549 fps | 95.2% |
| ReloadSwiss RS 70 | 59.4 gr | 84% | 35,491 psi | 56% | 2612 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 50,908 psi | 80% | 2753 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,715 psi | 70% | 2671 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,116 psi | 60% | 2592 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 47,224 psi | 74% | 2825 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 86% | 43,772 psi | 69% | 2671 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,449 psi | 59% | 2546 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,485 psi | 74% | 2746 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,931 psi | 67% | 2657 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,509 psi | 63% | 2631 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,059 psi | 61% | 2641 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,573 psi | 76% | 2762 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,325 psi | 73% | 2736 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,037 psi | 75% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,234 psi | 63% | 2530 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,916 psi | 66% | 2598 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,775 psi | 73% | 2818 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 47,645 psi | 75% | 2661 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,066 psi | 75% | 2756 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 38,725 psi | 61% | 2592 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 28,384 psi | 44% | 2431 fps | 97.1% |
| Somchem S385 | <<locked>> | 96% | 44,846 psi | 70% | 2749 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 34,301 psi | 54% | 2536 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 52,953 psi | 83% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,426 psi | 71% | 2608 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,396 psi | 70% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,367 psi | 70% | 2651 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,199 psi | 52% | 2448 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,330 psi | 54% | 2513 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 52,794 psi | 83% | 2828 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,961 psi | 69% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,925 psi | 55% | 2556 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 88% | 31,821 psi | 50% | 2536 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,605 psi | 51% | 2457 fps | 97.5% |
| Winchester 760 | <<locked>> | 84% | 41,901 psi | 66% | 2720 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,644 psi | 43% | 2474 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,763 psi | 78% | 2825 fps | 95.6% |
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 103 powders for .300 WSM loaded with the .308 | 168gr | Sellier & Bellot HPBT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,045 fps; across all powders the maximum-charge window runs from 1,775 fps to 3,045 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 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 168.0 gr projectile in 0.308" calls for a 1:12.5 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 WSM with the .308 | 168gr | Sellier & Bellot HPBT 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.