Load Specifications
Bullet Manufacturer:Prvi Partizan
Bullet Weight:180 gr
Bullet Diameter:0.3085"
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:1:14.0
Load data in caliber .300 WSM with .3085 | 180gr | Prvi Partizan SP bullet and 106 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-16 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 56,753 psi | 89% | 2753 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,508 psi | 90% | 2799 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,203 psi | 90% | 2769 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,530 psi | 76% | 2733 fps | 98.7% |
| Accurate 4064 | <<locked>> | 86% | 54,360 psi | 85% | 2749 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,563 psi | 86% | 2848 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 57,217 psi | 90% | 2825 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,969 psi | 86% | 2779 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,014 psi | 88% | 2884 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,014 psi | 88% | 2772 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,667 psi | 90% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,595 psi | 90% | 2953 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,535 psi | 87% | 2805 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,869 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,506 psi | 87% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,840 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 2871 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,341 psi | 76% | 2808 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,774 psi | 72% | 2759 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,161 psi | 63% | 2671 fps | 97.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,924 psi | 81% | 2940 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,246 psi | 90% | 2844 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 56,391 psi | 88% | 2822 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,341 psi | 76% | 2808 fps | 96.6% |
| Bofors RP7 | <<locked>> | 92% | 55,927 psi | 88% | 2802 fps | 98.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,450 psi | 90% | 2753 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,912 psi | 88% | 2805 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,869 psi | 89% | 2835 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,810 psi | 86% | 2864 fps | 99% |
| Hodgdon H4350 | <<locked>> | 94% | 55,448 psi | 87% | 2831 fps | 98% |
| Hodgdon H4895 | <<locked>> | 82% | 54,404 psi | 85% | 2785 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,738 psi | 87% | 2825 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,215 psi | 85% | 2818 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,435 psi | 90% | 2936 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,143 psi | 57% | 1719 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,549 psi | 85% | 2772 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,942 psi | 89% | 2789 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,087 psi | 89% | 2802 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,173 psi | 88% | 2779 fps | 99% |
| IMR 4350 | <<locked>> | 96% | 56,434 psi | 88% | 2828 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,653 psi | 90% | 2828 fps | 99.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 2848 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 57,276 psi | 90% | 2854 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,608 psi | 87% | 2815 fps | 96% |
| IMR 8208 XBR | <<locked>> | 82% | 56,014 psi | 88% | 2772 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,012 psi | 85% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,260 psi | 88% | 2749 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 54,476 psi | 85% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,435 psi | 90% | 2822 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 54,969 psi | 86% | 2808 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,350 psi | 63% | 2589 fps | 97% |
| Norma 201 | <<locked>> | 84% | 55,970 psi | 88% | 2769 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,608 psi | 89% | 2766 fps | 100% |
| Norma 203B | <<locked>> | 86% | 55,100 psi | 86% | 2812 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,145 psi | 90% | 2881 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 51,242 psi | 80% | 2894 fps | 98.5% |
| Norma URP | <<locked>> | 96% | 57,174 psi | 90% | 2884 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 55,680 psi | 87% | 2835 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,766 psi | 86% | 2913 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 96% | 55,651 psi | 87% | 2884 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,456 psi | 74% | 2769 fps | 96.9% |
| Ramshot TAC | <<locked>> | 82% | 56,188 psi | 88% | 2802 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,289 psi | 88% | 2815 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 57% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,942 psi | 89% | 2822 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,768 psi | 89% | 2894 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,449 psi | 88% | 2927 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 54,302 psi | 85% | 2867 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,927 psi | 89% | 2953 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,942 psi | 89% | 2746 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,565 psi | 89% | 2769 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,246 psi | 88% | 2815 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 54,215 psi | 85% | 2802 fps | 96.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,954 psi | 85% | 2858 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 92% | 55,927 psi | 88% | 2802 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,435 psi | 90% | 2822 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,012 psi | 85% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,476 psi | 85% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,969 psi | 86% | 2808 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 54,186 psi | 85% | 2822 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,911 psi | 86% | 2779 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,796 psi | 87% | 2799 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 57,087 psi | 89% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 54,273 psi | 85% | 2657 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,508 psi | 90% | 2779 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,447 psi | 84% | 2851 fps | 97.6% |
| Somchem S335 | <<locked>> | 84% | 56,579 psi | 89% | 2700 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,636 psi | 86% | 2766 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,130 psi | 88% | 2808 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 56,130 psi | 88% | 2795 fps | 95.8% |
| Somchem S365 | <<locked>> | 98% | 55,695 psi | 87% | 2884 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,621 psi | 86% | 2831 fps | 98.5% |
| Unknown powder | <<locked>> | 92% | 54,346 psi | 85% | 2838 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 86% | 56,898 psi | 89% | 2677 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,884 psi | 89% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,536 psi | 89% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,624 psi | 90% | 2789 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,882 psi | 86% | 2812 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,527 psi | 71% | 2671 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 86% | 56,101 psi | 88% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,071 psi | 86% | 2854 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,981 psi | 80% | 2831 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,564 psi | 87% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,810 psi | 86% | 2864 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,089 psi | 64% | 2799 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 2861 fps | 98% |
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 2495 | <<locked>> | 80% | 53,200 psi | 83% | 2707 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,780 psi | 84% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 41,278 psi | 65% | 2500 fps | 95.3% |
| Accurate 3100 | <<locked>> | 90% | 34,621 psi | 54% | 2467 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,063 psi | 71% | 2608 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,837 psi | 53% | 2461 fps | 96.8% |
| ADI AR 2206H | <<locked>> | 80% | 50,633 psi | 79% | 2726 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,960 psi | 67% | 2579 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 94% | 46,064 psi | 72% | 2717 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,692 psi | 83% | 2723 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,998 psi | 85% | 2694 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,862 psi | 73% | 2782 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,163 psi | 68% | 2605 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,180 psi | 72% | 2671 fps | 99.7% |
| Alliant Reloder-16 | 52 gr | 80% | 33,547 psi | 53% | 2470 fps | 96.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,637 psi | 59% | 2595 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,324 psi | 71% | 2703 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 45,368 psi | 71% | 2753 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,630 psi | 43% | 2336 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 96% | 35,360 psi | 55% | 2556 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,618 psi | 50% | 2503 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,038 psi | 78% | 2736 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 43,308 psi | 68% | 2615 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 45,368 psi | 71% | 2753 fps | 95.8% |
| Bofors RP7 | <<locked>> | 82% | 40,886 psi | 64% | 2536 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,128 psi | 85% | 2703 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,344 psi | 82% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,656 psi | 68% | 2618 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 80% | 39,059 psi | 61% | 2575 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 43,149 psi | 68% | 2615 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 51,155 psi | 80% | 2733 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,922 psi | 48% | 2372 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,616 psi | 75% | 2717 fps | 100% |
| Hodgdon Superformance | 62.1 gr | 84% | 40,118 psi | 63% | 2628 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,963 psi | 42% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,281 psi | 71% | 2625 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,297 psi | 74% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,192 psi | 66% | 2556 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,626 psi | 65% | 2526 fps | 96.3% |
| IMR 4350 | <<locked>> | 86% | 41,394 psi | 65% | 2569 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,740 psi | 62% | 2513 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 29,675 psi | 47% | 2339 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 47,369 psi | 74% | 2697 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 52,069 psi | 82% | 2759 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 52,692 psi | 83% | 2723 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,517 psi | 79% | 2700 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,821 psi | 78% | 2651 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,281 psi | 71% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,318 psi | 58% | 2467 fps | 96.4% |
| Lovex S070 | <<locked>> | 82% | 37,855 psi | 59% | 2497 fps | 95.4% |
| Lovex S071 | <<locked>> | 96% | 35,534 psi | 56% | 2487 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 49,487 psi | 78% | 2671 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,009 psi | 78% | 2671 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,585 psi | 71% | 2657 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 46,760 psi | 73% | 2710 fps | 95.7% |
| Norma MRP | <<locked>> | 92% | 39,146 psi | 61% | 2654 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 33,895 psi | 53% | 2461 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,556 psi | 71% | 2677 fps | 99.8% |
| Ramshot Grand | <<locked>> | 98% | 50,908 psi | 80% | 2848 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 82% | 35,157 psi | 55% | 2497 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 43,918 psi | 69% | 2700 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 52,707 psi | 83% | 2746 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,475 psi | 82% | 2759 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 43% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,845 psi | 69% | 2602 fps | 97.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,414 psi | 77% | 2779 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,001 psi | 63% | 2654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,402 psi | 52% | 2474 fps | 96.2% |
| ReloadSwiss RS 70 | 56.9 gr | 80% | 33,069 psi | 52% | 2477 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,592 psi | 84% | 2700 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,224 psi | 74% | 2628 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,683 psi | 64% | 2559 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 50,937 psi | 80% | 2749 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 94% | 44,179 psi | 69% | 2687 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 82% | 40,886 psi | 64% | 2536 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,318 psi | 58% | 2467 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,517 psi | 79% | 2700 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,281 psi | 71% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,855 psi | 59% | 2497 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,611 psi | 65% | 2608 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,401 psi | 81% | 2726 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,994 psi | 77% | 2697 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,589 psi | 79% | 2612 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,511 psi | 67% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,957 psi | 61% | 2464 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,758 psi | 69% | 2680 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 50,154 psi | 79% | 2612 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,894 psi | 80% | 2710 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,191 psi | 65% | 2559 fps | 99.6% |
| Somchem S361 | <<locked>> | 96% | 52,315 psi | 82% | 2736 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 30,472 psi | 48% | 2418 fps | 98.7% |
| Somchem S385 | <<locked>> | 92% | 42,250 psi | 66% | 2618 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 36,680 psi | 57% | 2513 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 80% | 47,892 psi | 75% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,195 psi | 74% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,731 psi | 73% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,346 psi | 55% | 2418 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 36,724 psi | 58% | 2490 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 98% | 42,685 psi | 67% | 2618 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 46,528 psi | 73% | 2625 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,173 psi | 58% | 2530 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 82% | 28,108 psi | 44% | 2352 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,577 psi | 54% | 2434 fps | 98.8% |
| Winchester 760 | <<locked>> | 80% | 39,059 psi | 61% | 2575 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 26,092 psi | 41% | 2359 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 94% | 46,006 psi | 72% | 2680 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 106 powders for .300 WSM loaded with the .3085 | 180gr | Prvi Partizan SP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,953 fps. Accurate 3100 gives the best case fill at 100 %, and 106 of the 106 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.3085" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, Alliant Reloder-16, Hodgdon Superformance rank at the top here: for .300 WSM with the .3085 | 180gr | Prvi Partizan SP 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.