Load Specifications
Bullet Manufacturer:Frontier Bullets
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:1:11.5
Load data in caliber .300 WSM with .308 | 180gr | Frontier PH HPFB 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, 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% | 55,883 psi | 88% | 2667 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,100 psi | 86% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,911 psi | 86% | 2749 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,911 psi | 86% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,882 psi | 86% | 2717 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,614 psi | 71% | 2671 fps | 98% |
| Accurate 4064 | <<locked>> | 88% | 55,347 psi | 87% | 2749 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,361 psi | 87% | 2841 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,911 psi | 86% | 2776 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,130 psi | 88% | 2779 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,243 psi | 83% | 2822 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,261 psi | 90% | 2772 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,332 psi | 87% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,897 psi | 86% | 2900 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,347 psi | 88% | 2802 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,913 psi | 89% | 2825 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,101 psi | 88% | 2894 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,522 psi | 90% | 2927 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,141 psi | 82% | 2808 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,105 psi | 68% | 2697 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,029 psi | 60% | 2605 fps | 96.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,762 psi | 76% | 2874 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,766 psi | 86% | 2792 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 57,290 psi | 90% | 2818 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,898 psi | 89% | 2795 fps | 98.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,463 psi | 87% | 2707 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,058 psi | 89% | 2805 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 57,290 psi | 90% | 2749 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,302 psi | 85% | 2782 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 55,724 psi | 87% | 2861 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 96% | 56,362 psi | 88% | 2828 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 84% | 55,535 psi | 87% | 2785 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,405 psi | 88% | 2822 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,492 psi | 87% | 2825 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,433 psi | 85% | 2874 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 56% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,825 psi | 87% | 2776 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,447 psi | 85% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,926 psi | 86% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,537 psi | 90% | 2779 fps | 98.9% |
| IMR 4350 | <<locked>> | 98% | 57,334 psi | 90% | 2822 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,143 psi | 86% | 2772 fps | 98.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,852 psi | 83% | 2792 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 54,766 psi | 86% | 2802 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,261 psi | 90% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,172 psi | 86% | 2753 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,595 psi | 90% | 2749 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,709 psi | 87% | 2759 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,853 psi | 86% | 2769 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 55,912 psi | 88% | 2805 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,029 psi | 60% | 2530 fps | 96% |
| Norma 201 | <<locked>> | 86% | 57,174 psi | 90% | 2769 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,491 psi | 85% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,115 psi | 88% | 2812 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,534 psi | 85% | 2822 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 48,370 psi | 76% | 2828 fps | 97.7% |
| Norma URP | <<locked>> | 96% | 54,114 psi | 85% | 2828 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 56,695 psi | 89% | 2835 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,536 psi | 89% | 2881 fps | 99.5% |
| Ramshot TAC | <<locked>> | 84% | 57,537 psi | 90% | 2802 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,435 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,506 psi | 57% | 1739 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,331 psi | 85% | 2766 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,027 psi | 85% | 2838 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,305 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,955 psi | 86% | 2864 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,186 psi | 85% | 2894 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 54,679 psi | 86% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,302 psi | 85% | 2723 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,159 psi | 90% | 2812 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2792 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,981 psi | 80% | 2792 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 94% | 56,898 psi | 89% | 2795 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,853 psi | 86% | 2769 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,172 psi | 86% | 2753 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,709 psi | 87% | 2759 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,912 psi | 88% | 2805 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,085 psi | 86% | 2818 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,188 psi | 88% | 2779 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,956 psi | 89% | 2799 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,955 psi | 86% | 2657 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,347 psi | 87% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,795 psi | 86% | 2720 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,502 psi | 79% | 2785 fps | 96.7% |
| Somchem S335 | <<locked>> | 84% | 54,607 psi | 86% | 2657 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,825 psi | 87% | 2769 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,334 psi | 90% | 2808 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,260 psi | 88% | 2881 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,793 psi | 81% | 2772 fps | 97.7% |
| Unknown powder | <<locked>> | 94% | 55,085 psi | 86% | 2835 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 82% | 57,072 psi | 89% | 2648 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,984 psi | 86% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,711 psi | 90% | 2726 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,638 psi | 90% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,085 psi | 86% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,477 psi | 87% | 2805 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 82% | 56,869 psi | 89% | 2776 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,319 psi | 90% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,912 psi | 88% | 2851 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,037 psi | 75% | 2776 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,463 psi | 88% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,724 psi | 87% | 2861 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,783 psi | 61% | 2726 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,143 psi | 85% | 2795 fps | 97.1% |
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% | 52,634 psi | 82% | 2625 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,498 psi | 71% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,372 psi | 81% | 2700 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,372 psi | 81% | 2700 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 42,134 psi | 66% | 2500 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 37,202 psi | 58% | 2513 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 43,033 psi | 67% | 2562 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,952 psi | 50% | 2405 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 48,588 psi | 76% | 2677 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,321 psi | 65% | 2533 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 46,891 psi | 73% | 2713 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,633 psi | 79% | 2677 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,663 psi | 81% | 2651 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,527 psi | 70% | 2723 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,365 psi | 65% | 2559 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,222 psi | 69% | 2618 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,097 psi | 50% | 2418 fps | 95.9% |
| Alliant Reloder-17 | 53.5 gr | 80% | 35,781 psi | 56% | 2539 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,050 psi | 72% | 2700 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,934 psi | 44% | 2329 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,694 psi | 56% | 2546 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,301 psi | 54% | 2562 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,037 psi | 75% | 2687 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 41,075 psi | 64% | 2562 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 41,626 psi | 65% | 2533 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,098 psi | 82% | 2657 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,893 psi | 78% | 2703 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,882 psi | 84% | 2703 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,771 psi | 65% | 2569 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 82% | 39,697 psi | 62% | 2579 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 44,034 psi | 69% | 2618 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 49,081 psi | 77% | 2687 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,457 psi | 46% | 2320 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,685 psi | 67% | 2618 fps | 99.9% |
| Hodgdon Superformance | 60.8 gr | 86% | 41,089 psi | 64% | 2631 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 42% | 1516 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,497 psi | 68% | 2575 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 45,252 psi | 71% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,611 psi | 64% | 2510 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 40,059 psi | 63% | 2474 fps | 95.4% |
| IMR 4350 | <<locked>> | 88% | 42,076 psi | 66% | 2566 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,611 psi | 64% | 2516 fps | 95.5% |
| IMR 4831 | <<locked>> | 82% | 29,965 psi | 47% | 2339 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 45,324 psi | 71% | 2648 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 50,633 psi | 79% | 2677 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,109 psi | 75% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,124 psi | 75% | 2608 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 43,453 psi | 68% | 2566 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,795 psi | 56% | 2418 fps | 95.6% |
| Lovex S070 | <<locked>> | 84% | 38,609 psi | 61% | 2497 fps | 95.3% |
| Lovex S071 | <<locked>> | 98% | 35,636 psi | 56% | 2477 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 47,616 psi | 75% | 2628 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,109 psi | 75% | 2631 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,584 psi | 68% | 2608 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 47,485 psi | 74% | 2707 fps | 95.5% |
| Norma MRP | <<locked>> | 94% | 39,494 psi | 62% | 2648 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 32,111 psi | 50% | 2405 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 43,308 psi | 68% | 2625 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 35,766 psi | 56% | 2500 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 50,575 psi | 79% | 2694 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,401 psi | 79% | 2713 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 43% | 1552 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,945 psi | 66% | 2549 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,195 psi | 74% | 2730 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,087 psi | 60% | 2602 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,589 psi | 50% | 2418 fps | 95.2% |
| ReloadSwiss RS 70 | 55.7 gr | 82% | 33,678 psi | 53% | 2477 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 51,503 psi | 81% | 2654 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,382 psi | 71% | 2582 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,682 psi | 61% | 2507 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 51,721 psi | 81% | 2743 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 96% | 44,744 psi | 70% | 2680 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 84% | 41,626 psi | 65% | 2533 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,795 psi | 56% | 2418 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,109 psi | 75% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,453 psi | 68% | 2566 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 38,609 psi | 61% | 2497 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,769 psi | 62% | 2559 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,110 psi | 77% | 2671 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,123 psi | 74% | 2648 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,646 psi | 76% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,770 psi | 64% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,900 psi | 63% | 2467 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 44,324 psi | 69% | 2677 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,370 psi | 76% | 2569 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,921 psi | 77% | 2667 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,421 psi | 62% | 2513 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 28,863 psi | 45% | 2359 fps | 97.9% |
| Somchem S385 | <<locked>> | 94% | 42,714 psi | 67% | 2615 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 34,882 psi | 55% | 2461 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 53,766 psi | 84% | 2608 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,093 psi | 72% | 2513 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,049 psi | 71% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,904 psi | 70% | 2556 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,678 psi | 53% | 2369 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 80% | 34,824 psi | 55% | 2434 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 80% | 53,519 psi | 84% | 2730 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,411 psi | 70% | 2575 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,433 psi | 56% | 2480 fps | 96.7% |
| Vihtavuori N555 | <<locked>> | 86% | 30,211 psi | 47% | 2405 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,156 psi | 52% | 2385 fps | 98.2% |
| Winchester 760 | <<locked>> | 82% | 39,697 psi | 62% | 2579 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,310 psi | 41% | 2349 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 96% | 46,891 psi | 73% | 2680 fps | 95.4% |
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 | 180gr | Frontier PH HPFB. Alliant Reloder-17 delivers the highest muzzle velocity at 2,927 fps; across all powders the maximum-charge window runs from 1,699 fps to 2,927 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 180.0 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, ADI AR 2213 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 | 180gr | Frontier PH HPFB they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Bofors RP15, Hodgdon H4831 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.