Load Specifications
Bullet:.308 | 175gr | Atomic 29 HP
Bullet Manufacturer:Atomic 29
Bullet Weight:175 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:1:11.5
Load data in caliber .300 WSM with .308 | 175gr | Atomic 29 HP 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>> | 84% | 57,058 psi | 89% | 2730 fps | 100% |
| Accurate 2495 | <<locked>> | 84% | 56,826 psi | 89% | 2782 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,260 psi | 88% | 2815 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,449 psi | 88% | 2779 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,657 psi | 70% | 2690 fps | 97.5% |
| Accurate 4064 | <<locked>> | 88% | 54,259 psi | 85% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,302 psi | 85% | 2867 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,244 psi | 85% | 2805 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,143 psi | 86% | 2805 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,373 psi | 82% | 2841 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,536 psi | 89% | 2802 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,244 psi | 85% | 2726 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,696 psi | 90% | 2982 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 50,836 psi | 80% | 2825 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,564 psi | 87% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,869 psi | 88% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,187 psi | 86% | 2920 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,463 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,184 psi | 80% | 2828 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,250 psi | 66% | 2717 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,659 psi | 75% | 2887 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,493 psi | 90% | 2871 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 56,072 psi | 88% | 2841 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,101 psi | 88% | 2822 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,621 psi | 86% | 2733 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,926 psi | 86% | 2822 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 57,087 psi | 89% | 2927 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,333 psi | 88% | 2779 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,087 psi | 89% | 2861 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 54,737 psi | 86% | 2884 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 96% | 54,143 psi | 85% | 2835 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 54,795 psi | 86% | 2812 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2844 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,797 psi | 89% | 2887 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,392 psi | 90% | 2956 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,145 psi | 90% | 2838 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 57,087 psi | 89% | 2822 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,276 psi | 90% | 2825 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,579 psi | 89% | 2802 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 56,391 psi | 88% | 2844 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,898 psi | 89% | 2841 fps | 98.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,895 psi | 81% | 2815 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 57,246 psi | 90% | 2877 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,536 psi | 89% | 2802 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,696 psi | 90% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,927 psi | 89% | 2779 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,650 psi | 86% | 2782 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,319 psi | 90% | 2841 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 54,998 psi | 86% | 2828 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 56,449 psi | 88% | 2799 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,058 psi | 89% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,056 psi | 86% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,246 psi | 90% | 2900 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 47,369 psi | 74% | 2841 fps | 97.1% |
| Norma URP | <<locked>> | 98% | 56,521 psi | 89% | 2900 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,811 psi | 87% | 2861 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,506 psi | 87% | 2904 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 56,768 psi | 89% | 2828 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,637 psi | 89% | 2844 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,145 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,390 psi | 57% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,029 psi | 89% | 2841 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,521 psi | 89% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,260 psi | 88% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,609 psi | 90% | 2940 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,782 psi | 89% | 2969 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,261 psi | 90% | 2776 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,840 psi | 89% | 2795 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,188 psi | 88% | 2838 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,951 psi | 78% | 2812 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,101 psi | 88% | 2822 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,319 psi | 90% | 2841 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,696 psi | 90% | 2828 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,650 psi | 86% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,000 psi | 89% | 2864 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,201 psi | 85% | 2848 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,332 psi | 87% | 2805 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,927 psi | 88% | 2825 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,099 psi | 85% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,694 psi | 86% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,696 psi | 90% | 2799 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,240 psi | 76% | 2789 fps | 95.8% |
| Somchem S335 | <<locked>> | 86% | 57,188 psi | 90% | 2730 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,027 psi | 86% | 2795 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,188 psi | 88% | 2831 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,042 psi | 86% | 2904 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,821 psi | 80% | 2792 fps | 97.3% |
| Unknown powder | <<locked>> | 94% | 54,128 psi | 85% | 2858 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,217 psi | 88% | 2677 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,435 psi | 90% | 2710 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,622 psi | 87% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,579 psi | 89% | 2766 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 57,624 psi | 90% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,549 psi | 85% | 2828 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 56,188 psi | 88% | 2808 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,246 psi | 88% | 2792 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,926 psi | 86% | 2877 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,036 psi | 74% | 2795 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,492 psi | 87% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,737 psi | 86% | 2884 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,942 psi | 59% | 2740 fps | 99.8% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,098 psi | 83% | 2815 fps | 96.5% |
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 2015 | <<locked>> | 80% | 50,459 psi | 79% | 2641 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 49,850 psi | 78% | 2687 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,965 psi | 77% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 43,207 psi | 68% | 2559 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 36,419 psi | 57% | 2526 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,192 psi | 66% | 2585 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,154 psi | 49% | 2418 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 47,747 psi | 75% | 2700 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,596 psi | 64% | 2552 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 48,994 psi | 77% | 2782 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,821 psi | 78% | 2703 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,647 psi | 79% | 2677 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,627 psi | 68% | 2743 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 47,572 psi | 75% | 2766 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,567 psi | 64% | 2579 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,381 psi | 68% | 2641 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,502 psi | 49% | 2431 fps | 95.2% |
| Alliant Reloder-17 | 53.7 gr | 80% | 35,041 psi | 55% | 2556 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,008 psi | 75% | 2772 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,153 psi | 46% | 2398 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,446 psi | 52% | 2569 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,094 psi | 74% | 2707 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,437 psi | 63% | 2585 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,627 psi | 68% | 2608 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,285 psi | 80% | 2684 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,703 psi | 75% | 2713 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 53,156 psi | 83% | 2864 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 80% | 53,011 psi | 83% | 2733 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,973 psi | 64% | 2589 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 84% | 41,713 psi | 65% | 2651 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 44,991 psi | 71% | 2674 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 48,196 psi | 76% | 2710 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,863 psi | 45% | 2333 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,308 psi | 68% | 2674 fps | 99.8% |
| Hodgdon Superformance | 62.5 gr | 88% | 43,279 psi | 68% | 2710 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 42% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,771 psi | 65% | 2585 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 44,382 psi | 70% | 2635 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,900 psi | 63% | 2530 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,018 psi | 66% | 2549 fps | 95.7% |
| IMR 4350 | <<locked>> | 90% | 43,947 psi | 69% | 2638 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 41,539 psi | 65% | 2572 fps | 95.4% |
| IMR 4831 | <<locked>> | 84% | 31,343 psi | 49% | 2405 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 44,440 psi | 70% | 2671 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,821 psi | 78% | 2703 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,398 psi | 74% | 2680 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,369 psi | 74% | 2631 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,656 psi | 67% | 2589 fps | 99.8% |
| Lovex S065 | <<locked>> | 80% | 35,157 psi | 55% | 2434 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 40,364 psi | 63% | 2569 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,775 psi | 73% | 2651 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,239 psi | 74% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,728 psi | 67% | 2628 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 49,864 psi | 78% | 2782 fps | 95.7% |
| Norma MRP | <<locked>> | 96% | 41,307 psi | 65% | 2720 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,589 psi | 50% | 2425 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 42,424 psi | 66% | 2641 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,289 psi | 58% | 2566 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 49,705 psi | 78% | 2717 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,487 psi | 78% | 2736 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,737 psi | 84% | 2753 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,122 psi | 43% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,365 psi | 65% | 2572 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,209 psi | 72% | 2749 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,289 psi | 58% | 2618 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,127 psi | 52% | 2490 fps | 95.5% |
| ReloadSwiss RS 70 | 57.3 gr | 84% | 35,346 psi | 55% | 2552 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,734 psi | 80% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,585 psi | 70% | 2605 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,072 psi | 60% | 2533 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 46,920 psi | 74% | 2759 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 43,627 psi | 68% | 2608 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,157 psi | 55% | 2434 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,398 psi | 74% | 2680 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,656 psi | 67% | 2589 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 39,131 psi | 61% | 2549 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,957 psi | 61% | 2579 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,196 psi | 76% | 2694 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,253 psi | 72% | 2671 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,877 psi | 75% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,074 psi | 63% | 2464 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,800 psi | 66% | 2536 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,295 psi | 71% | 2733 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 47,630 psi | 75% | 2595 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,979 psi | 75% | 2687 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,667 psi | 61% | 2533 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,210 psi | 44% | 2372 fps | 97.3% |
| Somchem S385 | <<locked>> | 96% | 44,527 psi | 70% | 2684 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 34,185 psi | 54% | 2477 fps | 95.3% |
| Vihtavuori N130 | <<locked>> | 80% | 52,968 psi | 83% | 2635 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,368 psi | 71% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,989 psi | 67% | 2566 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,135 psi | 69% | 2582 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,040 psi | 52% | 2388 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 34,214 psi | 54% | 2454 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 52,605 psi | 82% | 2756 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,830 psi | 69% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,650 psi | 54% | 2493 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 86% | 29,602 psi | 46% | 2418 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,503 psi | 51% | 2398 fps | 97.7% |
| Winchester 760 | <<locked>> | 84% | 41,713 psi | 65% | 2651 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,470 psi | 43% | 2418 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,298 psi | 77% | 2753 fps | 95.7% |
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 | 175gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,982 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,982 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 175.0 gr projectile in 0.308" calls for a 1:11.5 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 | 175gr | Atomic 29 HP 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.