Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:175 gr
Bullet Diameter:0.31"
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 .310 | 175gr | Rhino Penetrator bullet and 102 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% | 55,216 psi | 87% | 2700 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,491 psi | 85% | 2730 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,230 psi | 85% | 2782 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 53,954 psi | 85% | 2740 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,020 psi | 71% | 2697 fps | 97.6% |
| Accurate 4064 | <<locked>> | 88% | 54,433 psi | 85% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,433 psi | 85% | 2871 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,418 psi | 85% | 2808 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,288 psi | 87% | 2808 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,460 psi | 82% | 2844 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,710 psi | 89% | 2805 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,491 psi | 85% | 2730 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,172 psi | 85% | 2930 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,344 psi | 82% | 2844 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,695 psi | 87% | 2831 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,014 psi | 88% | 2851 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,288 psi | 87% | 2923 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,898 psi | 89% | 2959 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,561 psi | 81% | 2838 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,612 psi | 67% | 2726 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,979 psi | 75% | 2897 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,143 psi | 85% | 2825 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 56,521 psi | 89% | 2851 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,202 psi | 88% | 2825 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,795 psi | 86% | 2740 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,347 psi | 88% | 2838 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 56,521 psi | 89% | 2782 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,246 psi | 90% | 2864 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 92% | 54,853 psi | 86% | 2887 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 96% | 55,347 psi | 87% | 2851 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 54,969 psi | 86% | 2818 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,492 psi | 87% | 2851 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,766 psi | 86% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,795 psi | 84% | 2900 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,940 psi | 56% | 1726 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,027 psi | 86% | 2805 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 57,290 psi | 90% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,421 psi | 90% | 2828 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 56,710 psi | 89% | 2805 fps | 98.7% |
| IMR 4350 | <<locked>> | 98% | 56,521 psi | 89% | 2851 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,563 psi | 86% | 2802 fps | 98.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 2818 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 57,479 psi | 90% | 2881 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,710 psi | 89% | 2805 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,230 psi | 85% | 2782 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,087 psi | 89% | 2782 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,839 psi | 86% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,450 psi | 90% | 2844 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 55,100 psi | 86% | 2831 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 56,652 psi | 89% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,232 psi | 90% | 2802 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,230 psi | 87% | 2838 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,377 psi | 90% | 2904 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 47,485 psi | 74% | 2844 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 56,956 psi | 89% | 2907 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 55,912 psi | 88% | 2864 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,637 psi | 87% | 2907 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 56,884 psi | 89% | 2831 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,811 psi | 89% | 2848 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,276 psi | 90% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,448 psi | 57% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 57,450 psi | 90% | 2848 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,985 psi | 89% | 2923 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,391 psi | 88% | 2953 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,998 psi | 85% | 2890 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 57,174 psi | 90% | 2976 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 84% | 57,479 psi | 90% | 2779 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,014 psi | 89% | 2799 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,405 psi | 88% | 2841 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 2818 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 56,202 psi | 88% | 2825 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,450 psi | 90% | 2844 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,230 psi | 85% | 2782 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,839 psi | 86% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,100 psi | 86% | 2831 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,360 psi | 85% | 2848 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,521 psi | 87% | 2808 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,347 psi | 88% | 2831 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,259 psi | 85% | 2687 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,853 psi | 86% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,128 psi | 85% | 2749 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,879 psi | 78% | 2812 fps | 96.3% |
| Somchem S335 | <<locked>> | 86% | 57,348 psi | 90% | 2733 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,158 psi | 86% | 2799 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,376 psi | 88% | 2838 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,187 psi | 86% | 2907 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,155 psi | 80% | 2799 fps | 97.3% |
| Unknown powder | <<locked>> | 94% | 54,302 psi | 85% | 2864 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,434 psi | 88% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,595 psi | 90% | 2713 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,101 psi | 89% | 2759 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,739 psi | 89% | 2766 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 54,375 psi | 85% | 2769 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,650 psi | 86% | 2831 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 56,376 psi | 88% | 2812 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,666 psi | 89% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 55,085 psi | 86% | 2881 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,152 psi | 74% | 2799 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,825 psi | 87% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,853 psi | 86% | 2887 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,247 psi | 60% | 2749 fps | 99.9% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 53,142 psi | 83% | 2818 fps | 96.6% |
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% | 51,982 psi | 81% | 2657 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,773 psi | 70% | 2592 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,575 psi | 79% | 2730 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 44,454 psi | 70% | 2579 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 36,564 psi | 57% | 2530 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,351 psi | 66% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,328 psi | 49% | 2421 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 47,921 psi | 75% | 2703 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,770 psi | 64% | 2556 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 49,124 psi | 77% | 2789 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,995 psi | 78% | 2707 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,894 psi | 80% | 2684 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,034 psi | 69% | 2749 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 49,023 psi | 77% | 2789 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,727 psi | 64% | 2582 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,555 psi | 68% | 2644 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,618 psi | 50% | 2438 fps | 95.3% |
| Alliant Reloder-17 | 53.9 gr | 80% | 35,201 psi | 55% | 2559 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,327 psi | 76% | 2779 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,586 psi | 43% | 2349 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,707 psi | 53% | 2579 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,297 psi | 74% | 2713 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,611 psi | 64% | 2589 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,758 psi | 69% | 2612 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,459 psi | 81% | 2690 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,371 psi | 77% | 2733 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,171 psi | 83% | 2736 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,133 psi | 64% | 2589 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 84% | 41,843 psi | 66% | 2657 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 90% | 46,209 psi | 72% | 2694 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 48,385 psi | 76% | 2713 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,979 psi | 45% | 2339 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,945 psi | 66% | 2641 fps | 99.7% |
| Hodgdon Superformance | 62.7 gr | 88% | 43,395 psi | 68% | 2713 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,672 psi | 42% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,917 psi | 67% | 2602 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 44,585 psi | 70% | 2638 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,089 psi | 63% | 2536 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,177 psi | 66% | 2552 fps | 95.8% |
| IMR 4350 | <<locked>> | 90% | 44,121 psi | 69% | 2641 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,248 psi | 63% | 2543 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 31,488 psi | 49% | 2411 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,628 psi | 70% | 2674 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,995 psi | 78% | 2707 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,587 psi | 75% | 2684 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,543 psi | 75% | 2638 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,844 psi | 67% | 2592 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,273 psi | 55% | 2438 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 40,495 psi | 63% | 2572 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 46,978 psi | 74% | 2654 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,427 psi | 74% | 2657 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,902 psi | 67% | 2631 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 46,818 psi | 73% | 2730 fps | 95% |
| Norma MRP | <<locked>> | 96% | 41,655 psi | 65% | 2730 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 31,604 psi | 50% | 2425 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 42,757 psi | 67% | 2651 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 37,608 psi | 59% | 2575 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 49,864 psi | 78% | 2720 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,632 psi | 78% | 2740 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,882 psi | 84% | 2756 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,209 psi | 43% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,510 psi | 65% | 2575 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,383 psi | 73% | 2753 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,449 psi | 59% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,257 psi | 52% | 2493 fps | 95.5% |
| ReloadSwiss RS 70 | 57.5 gr | 84% | 35,447 psi | 56% | 2556 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 50,894 psi | 80% | 2687 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,788 psi | 70% | 2608 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,043 psi | 60% | 2530 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 47,065 psi | 74% | 2759 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 43,758 psi | 69% | 2612 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,273 psi | 55% | 2438 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,587 psi | 75% | 2684 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,844 psi | 67% | 2592 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 40,495 psi | 63% | 2572 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,117 psi | 61% | 2582 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,341 psi | 76% | 2697 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,412 psi | 73% | 2677 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,051 psi | 75% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,248 psi | 63% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,930 psi | 66% | 2539 fps | 95.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,615 psi | 73% | 2756 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 47,761 psi | 75% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,124 psi | 75% | 2690 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,856 psi | 61% | 2536 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,355 psi | 44% | 2379 fps | 97.4% |
| Somchem S385 | <<locked>> | 94% | 42,018 psi | 66% | 2638 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 34,330 psi | 54% | 2480 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 53,185 psi | 83% | 2638 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,324 psi | 71% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,425 psi | 70% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,266 psi | 69% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,199 psi | 52% | 2392 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,360 psi | 54% | 2457 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 80% | 52,794 psi | 83% | 2759 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,990 psi | 69% | 2608 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,795 psi | 55% | 2497 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 86% | 29,747 psi | 47% | 2425 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,590 psi | 51% | 2402 fps | 97.7% |
| Winchester 760 | <<locked>> | 84% | 41,843 psi | 66% | 2657 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,572 psi | 43% | 2425 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,603 psi | 78% | 2759 fps | 95.8% |
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 .310 | 175gr | Rhino Penetrator. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,976 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 175.0 gr projectile in 0.31" calls for a 1:12.0 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 .310 | 175gr | Rhino Penetrator 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.