Load Specifications
Load data in caliber .300 WSM with .308 | 174gr | Prvi Partizan FMJ BT bullet and 100 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.
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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% | 55,434 psi | 87% | 2713 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,389 psi | 85% | 2740 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,767 psi | 87% | 2802 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,608 psi | 89% | 2799 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,078 psi | 71% | 2707 fps | 97.6% |
| Accurate 4064 | <<locked>> | 88% | 54,592 psi | 86% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,549 psi | 85% | 2881 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,563 psi | 86% | 2822 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,434 psi | 87% | 2822 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,765 psi | 83% | 2861 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,913 psi | 89% | 2818 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,476 psi | 85% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,273 psi | 85% | 2940 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,854 psi | 88% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,173 psi | 88% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,637 psi | 87% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,927 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 2848 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,656 psi | 67% | 2736 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,196 psi | 76% | 2910 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,259 psi | 85% | 2835 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 56,681 psi | 89% | 2861 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,318 psi | 88% | 2835 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,998 psi | 86% | 2753 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,478 psi | 89% | 2851 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,334 psi | 90% | 2877 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 57,159 psi | 90% | 2933 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 94% | 57,624 psi | 90% | 2894 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 84% | 55,172 psi | 86% | 2831 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,550 psi | 87% | 2861 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,650 psi | 86% | 2861 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,795 psi | 84% | 2913 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,839 psi | 56% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,260 psi | 88% | 2831 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,245 psi | 87% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,100 psi | 86% | 2805 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,679 psi | 86% | 2785 fps | 98.4% |
| IMR 4350 | <<locked>> | 98% | 56,840 psi | 89% | 2864 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,650 psi | 86% | 2812 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 55,071 psi | 86% | 2871 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 57,638 psi | 90% | 2894 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,913 psi | 89% | 2818 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,418 psi | 85% | 2795 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,014 psi | 89% | 2795 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,998 psi | 86% | 2799 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,288 psi | 85% | 2808 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 55,201 psi | 87% | 2844 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 56,550 psi | 89% | 2812 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,145 psi | 90% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,390 psi | 87% | 2851 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,653 psi | 90% | 2917 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 47,732 psi | 75% | 2861 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 57,043 psi | 89% | 2920 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 56,275 psi | 88% | 2881 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,912 psi | 88% | 2920 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 56,985 psi | 89% | 2844 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,927 psi | 89% | 2861 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,421 psi | 90% | 2818 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,332 psi | 57% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,508 psi | 90% | 2861 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,159 psi | 90% | 2936 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,492 psi | 89% | 2966 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,302 psi | 85% | 2904 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,116 psi | 90% | 2989 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,435 psi | 90% | 2789 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,217 psi | 90% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,507 psi | 89% | 2854 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,386 psi | 79% | 2828 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 56,318 psi | 88% | 2835 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,288 psi | 85% | 2808 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,418 psi | 85% | 2795 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,998 psi | 86% | 2799 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,201 psi | 87% | 2844 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,433 psi | 85% | 2861 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,637 psi | 87% | 2822 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,478 psi | 89% | 2844 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,476 psi | 85% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,042 psi | 86% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,462 psi | 85% | 2762 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,893 psi | 78% | 2825 fps | 96.3% |
| Somchem S335 | <<locked>> | 86% | 57,261 psi | 90% | 2743 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,274 psi | 87% | 2812 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,507 psi | 89% | 2848 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 2923 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,213 psi | 80% | 2808 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 82% | 57,595 psi | 90% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,839 psi | 86% | 2687 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,029 psi | 89% | 2769 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,215 psi | 85% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,534 psi | 85% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,898 psi | 88% | 2864 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 57,217 psi | 90% | 2815 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,985 psi | 88% | 2789 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,042 psi | 86% | 2871 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,239 psi | 74% | 2808 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,811 psi | 87% | 2838 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,667 psi | 90% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 57,450 psi | 90% | 2936 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,261 psi | 60% | 2756 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,463 psi | 88% | 2851 fps | 100% |
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% | 51,967 psi | 81% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,788 psi | 70% | 2598 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,272 psi | 82% | 2756 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,598 psi | 68% | 2579 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 36,637 psi | 57% | 2543 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,337 psi | 66% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,531 psi | 49% | 2434 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,109 psi | 75% | 2717 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,727 psi | 64% | 2566 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 49,414 psi | 77% | 2802 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,183 psi | 79% | 2720 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,155 psi | 80% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,947 psi | 69% | 2759 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,727 psi | 64% | 2592 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,729 psi | 69% | 2657 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,618 psi | 50% | 2448 fps | 95.3% |
| Alliant Reloder-17 | 54.3 gr | 80% | 35,331 psi | 55% | 2572 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,385 psi | 76% | 2792 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,572 psi | 43% | 2359 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,765 psi | 53% | 2589 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,398 psi | 74% | 2723 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,567 psi | 64% | 2598 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,874 psi | 69% | 2621 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,692 psi | 81% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,284 psi | 77% | 2743 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,292 psi | 65% | 2602 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 41,118 psi | 64% | 2651 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 44,730 psi | 70% | 2674 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,602 psi | 76% | 2726 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,153 psi | 46% | 2352 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,773 psi | 70% | 2703 fps | 99.9% |
| Hodgdon Superformance | 63.1 gr | 88% | 43,424 psi | 68% | 2723 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 42% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,456 psi | 73% | 2677 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,515 psi | 76% | 2710 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,801 psi | 67% | 2598 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,353 psi | 71% | 2625 fps | 96.6% |
| IMR 4350 | <<locked>> | 90% | 44,222 psi | 69% | 2651 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,219 psi | 63% | 2549 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 32,648 psi | 51% | 2448 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 44,846 psi | 70% | 2687 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 50,183 psi | 79% | 2720 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,529 psi | 74% | 2690 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,732 psi | 75% | 2648 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,033 psi | 67% | 2605 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,273 psi | 55% | 2448 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 40,466 psi | 63% | 2579 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,934 psi | 74% | 2664 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,398 psi | 74% | 2667 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,120 psi | 68% | 2644 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 47,108 psi | 74% | 2743 fps | 95% |
| Norma MRP | <<locked>> | 96% | 41,655 psi | 65% | 2740 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,749 psi | 50% | 2438 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 42,743 psi | 67% | 2657 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,724 psi | 59% | 2585 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 49,995 psi | 78% | 2733 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,777 psi | 78% | 2749 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 54,056 psi | 85% | 2769 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 43% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,452 psi | 65% | 2582 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,557 psi | 73% | 2766 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,565 psi | 59% | 2635 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,402 psi | 52% | 2503 fps | 95.6% |
| ReloadSwiss RS 70 | 57.9 gr | 84% | 35,534 psi | 56% | 2566 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 51,140 psi | 80% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,788 psi | 70% | 2618 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,232 psi | 60% | 2543 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 47,108 psi | 74% | 2772 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 43,874 psi | 69% | 2621 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,273 psi | 55% | 2448 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,529 psi | 74% | 2690 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,033 psi | 67% | 2605 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 40,466 psi | 63% | 2579 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,247 psi | 62% | 2595 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,501 psi | 76% | 2710 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,586 psi | 73% | 2687 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,312 psi | 76% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,451 psi | 63% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,407 psi | 62% | 2500 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,659 psi | 73% | 2766 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 47,761 psi | 75% | 2608 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,283 psi | 76% | 2703 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,827 psi | 61% | 2546 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,514 psi | 45% | 2392 fps | 97.4% |
| Somchem S385 | <<locked>> | 94% | 42,076 psi | 66% | 2648 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 54,317 psi | 85% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,733 psi | 76% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,657 psi | 70% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,962 psi | 70% | 2605 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,014 psi | 58% | 2484 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 33,141 psi | 52% | 2441 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 50,270 psi | 79% | 2713 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,410 psi | 68% | 2598 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,634 psi | 51% | 2441 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 29,878 psi | 47% | 2438 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,706 psi | 51% | 2415 fps | 97.8% |
| Winchester 748 | <<locked>> | 80% | 50,459 psi | 79% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 41,336 psi | 65% | 2654 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,630 psi | 43% | 2434 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,224 psi | 72% | 2694 fps | 99.9% |
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 119 powders for .300 WSM loaded with the .308 | 174gr | Prvi Partizan FMJ BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,989 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 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 174.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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 | 174gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.