Load Specifications
Bullet Manufacturer:Frontier Bullets
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:1:12.0
Load data in caliber .300 WSM with .308 | 168gr | Frontier PH HPFB bullet and 102 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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>> | 84% | 57,566 psi | 90% | 2792 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,623 psi | 89% | 2818 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,623 psi | 89% | 2874 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,623 psi | 89% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,681 psi | 89% | 2831 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,772 psi | 69% | 2726 fps | 96.9% |
| Accurate 4064 | <<locked>> | 90% | 56,724 psi | 89% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,956 psi | 89% | 2963 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 86% | 56,797 psi | 89% | 2904 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,682 psi | 90% | 2900 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,680 psi | 87% | 2851 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,869 psi | 89% | 2822 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,695 psi | 89% | 3028 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,169 psi | 80% | 2877 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,491 psi | 85% | 2874 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,085 psi | 86% | 2897 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,172 psi | 85% | 2963 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,564 psi | 87% | 3002 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,553 psi | 65% | 2756 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,557 psi | 73% | 2923 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,623 psi | 89% | 2920 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,201 psi | 87% | 2890 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,013 psi | 86% | 2861 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,101 psi | 89% | 2828 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,129 psi | 86% | 2881 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,348 psi | 90% | 2982 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 55,593 psi | 87% | 2831 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,927 psi | 88% | 2904 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 57,508 psi | 90% | 2986 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 96% | 54,317 psi | 85% | 2887 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 86% | 57,406 psi | 90% | 2913 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,925 psi | 85% | 2887 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,000 psi | 89% | 2946 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,289 psi | 88% | 2995 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,737 psi | 56% | 1762 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,479 psi | 90% | 2897 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,840 psi | 88% | 2867 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,565 psi | 89% | 2874 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,651 psi | 87% | 2844 fps | 98.2% |
| IMR 4350 | <<locked>> | 98% | 55,419 psi | 87% | 2887 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,826 psi | 89% | 2890 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,850 psi | 80% | 2854 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 56,521 psi | 89% | 2927 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,680 psi | 87% | 2851 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,869 psi | 89% | 2877 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,144 psi | 88% | 2828 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,217 psi | 90% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,420 psi | 88% | 2887 fps | 99.2% |
| Lovex S070 | <<locked>> | 98% | 57,595 psi | 90% | 2927 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 55,564 psi | 87% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,130 psi | 88% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,302 psi | 85% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,057 psi | 88% | 2940 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 46,456 psi | 73% | 2881 fps | 96.5% |
| Norma URP | <<locked>> | 98% | 55,666 psi | 87% | 2949 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 88% | 54,781 psi | 86% | 2907 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,288 psi | 85% | 2943 fps | 98.8% |
| Ramshot TAC | <<locked>> | 84% | 55,753 psi | 87% | 2871 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,622 psi | 87% | 2890 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,463 psi | 88% | 2854 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1804 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,159 psi | 88% | 2884 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,608 psi | 87% | 2963 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,158 psi | 86% | 2999 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,463 psi | 88% | 2982 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,782 psi | 87% | 3015 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 56,260 psi | 88% | 2822 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,927 psi | 88% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,013 psi | 86% | 2881 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,013 psi | 86% | 2861 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,420 psi | 88% | 2887 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,869 psi | 89% | 2877 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,217 psi | 90% | 2881 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,595 psi | 90% | 2927 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,739 psi | 89% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,302 psi | 85% | 2848 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,143 psi | 86% | 2874 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,710 psi | 89% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,101 psi | 89% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,724 psi | 89% | 2838 fps | 98.3% |
| Somchem S321 | <<locked>> | 82% | 56,869 psi | 89% | 2881 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,347 psi | 88% | 2779 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,725 psi | 90% | 2894 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,376 psi | 87% | 2881 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 2946 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,908 psi | 78% | 2831 fps | 96.7% |
| Unknown powder | <<locked>> | 96% | 56,724 psi | 89% | 2956 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 55,376 psi | 87% | 2726 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,405 psi | 88% | 2759 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,970 psi | 88% | 2805 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,883 psi | 88% | 2815 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,710 psi | 89% | 2858 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,435 psi | 90% | 2927 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 55,332 psi | 87% | 2858 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,521 psi | 87% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,464 psi | 90% | 2972 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,890 psi | 72% | 2831 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,607 psi | 86% | 2867 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,797 psi | 89% | 2907 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,508 psi | 90% | 2986 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,231 psi | 58% | 2769 fps | 99.5% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,098 psi | 82% | 2851 fps | 95.9% |
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% | 50,894 psi | 80% | 2700 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,656 psi | 68% | 2628 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,443 psi | 77% | 2769 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,443 psi | 77% | 2769 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 46,572 psi | 73% | 2667 fps | 95.6% |
| Accurate 3100 | <<locked>> | 96% | 38,130 psi | 60% | 2615 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 41,307 psi | 65% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 32,750 psi | 51% | 2507 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 47,079 psi | 74% | 2743 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,842 psi | 62% | 2592 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,124 psi | 77% | 2749 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,908 psi | 78% | 2730 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,047 psi | 67% | 2785 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 47,979 psi | 75% | 2822 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,755 psi | 62% | 2615 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,699 psi | 67% | 2680 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 32,924 psi | 52% | 2520 fps | 95.4% |
| Alliant Reloder-17 | 54.5 gr | 80% | 34,389 psi | 54% | 2589 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 88% | 28,558 psi | 45% | 2425 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,230 psi | 55% | 2664 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,296 psi | 73% | 2749 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 39,508 psi | 62% | 2621 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 45,716 psi | 72% | 2700 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,705 psi | 79% | 2733 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,312 psi | 76% | 2776 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,519 psi | 84% | 2927 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 80% | 52,025 psi | 82% | 2779 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,321 psi | 63% | 2628 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 84% | 40,785 psi | 64% | 2687 fps | 95% |
| Hodgdon H4350 | <<locked>> | 92% | 48,124 psi | 75% | 2782 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 47,514 psi | 74% | 2756 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,413 psi | 45% | 2365 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,060 psi | 64% | 2677 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 90% | 45,426 psi | 71% | 2805 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 42% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,221 psi | 66% | 2644 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 43,511 psi | 68% | 2680 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,233 psi | 61% | 2569 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 82% | 41,321 psi | 65% | 2585 fps | 95% |
| IMR 4350 | <<locked>> | 90% | 43,308 psi | 68% | 2677 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,887 psi | 66% | 2625 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 32,721 psi | 51% | 2490 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 43,772 psi | 69% | 2713 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 49,124 psi | 77% | 2749 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,572 psi | 73% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,804 psi | 73% | 2677 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 42,061 psi | 66% | 2631 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 36,724 psi | 58% | 2520 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 41,989 psi | 66% | 2654 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 45,948 psi | 72% | 2694 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,340 psi | 73% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,076 psi | 66% | 2671 fps | 99% |
| Norma 204 | <<locked>> | 94% | 49,211 psi | 77% | 2825 fps | 95.1% |
| Norma MRP | <<locked>> | 98% | 43,323 psi | 68% | 2815 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 32,996 psi | 52% | 2510 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 41,771 psi | 65% | 2684 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 39,102 psi | 61% | 2657 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 48,907 psi | 77% | 2759 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,617 psi | 76% | 2779 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,895 psi | 83% | 2799 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 42% | 1614 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,698 psi | 64% | 2608 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,281 psi | 71% | 2789 fps | 99.1% |
| ReloadSwiss RS 60 | 54.5 gr | 80% | 36,579 psi | 57% | 2654 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,795 psi | 55% | 2582 fps | 95.7% |
| ReloadSwiss RS 70 | 59.5 gr | 86% | 37,057 psi | 58% | 2644 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 50,125 psi | 79% | 2730 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,830 psi | 69% | 2648 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 37,231 psi | 58% | 2566 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 45,716 psi | 72% | 2700 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 36,724 psi | 58% | 2520 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,572 psi | 73% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,061 psi | 66% | 2631 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 41,989 psi | 66% | 2654 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,261 psi | 60% | 2618 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,587 psi | 75% | 2736 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,542 psi | 71% | 2713 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,094 psi | 74% | 2638 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,392 psi | 62% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,046 psi | 64% | 2572 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 53,200 psi | 83% | 2828 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,789 psi | 73% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,094 psi | 74% | 2730 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 37,884 psi | 59% | 2569 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 27,731 psi | 43% | 2405 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 43,598 psi | 68% | 2717 fps | 95.1% |
| Unknown powder | <<locked>> | 82% | 35,868 psi | 56% | 2569 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 52,228 psi | 82% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,686 psi | 70% | 2589 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,395 psi | 68% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,497 psi | 68% | 2628 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,430 psi | 51% | 2421 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 80% | 33,446 psi | 52% | 2484 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 51,866 psi | 81% | 2802 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,946 psi | 67% | 2644 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,026 psi | 53% | 2530 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 88% | 30,908 psi | 48% | 2507 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,937 psi | 50% | 2431 fps | 97.1% |
| Winchester 748 | <<locked>> | 80% | 53,011 psi | 83% | 2851 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 40,785 psi | 64% | 2687 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 92% | 28,674 psi | 45% | 2500 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,385 psi | 76% | 2789 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 102 powders for .300 WSM loaded with the .308 | 168gr | Frontier PH HPFB. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,762 fps to 3,028 fps. Accurate 3100 gives the best case fill at 100 %, and 102 of the 102 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 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Power Pro Varmint, 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. Alliant Reloder-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .300 WSM with the .308 | 168gr | Frontier PH HPFB 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.