Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:165 gr
Bullet Diameter:0.307"
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:1:15.0
Load data in caliber .300 WSM with .307 | 165gr | Rhino Solid Shank bullet and 101 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% | 55,840 psi | 88% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,230 psi | 87% | 2838 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,752 psi | 86% | 2887 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,737 psi | 86% | 2848 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,876 psi | 72% | 2802 fps | 97.5% |
| Accurate 4064 | <<locked>> | 88% | 55,274 psi | 87% | 2887 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,535 psi | 87% | 2982 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 55,085 psi | 86% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,173 psi | 88% | 2920 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,287 psi | 84% | 2956 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,377 psi | 90% | 2917 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,158 psi | 86% | 2838 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,013 psi | 86% | 3041 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,127 psi | 83% | 2953 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,492 psi | 89% | 2943 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,884 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,304 psi | 88% | 3038 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,696 psi | 90% | 3071 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,330 psi | 82% | 2943 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,294 psi | 68% | 2828 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,979 psi | 77% | 3005 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,781 psi | 86% | 2930 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 57,188 psi | 90% | 2959 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,913 psi | 89% | 2933 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,434 psi | 87% | 2848 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,101 psi | 89% | 2946 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 57,392 psi | 90% | 2894 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,331 psi | 85% | 2920 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 92% | 55,709 psi | 87% | 2999 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 96% | 56,202 psi | 88% | 2959 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 84% | 55,637 psi | 87% | 2927 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,463 psi | 88% | 2963 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,506 psi | 87% | 2963 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,810 psi | 86% | 3015 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,926 psi | 56% | 1801 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,579 psi | 87% | 2913 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,404 psi | 85% | 2887 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,955 psi | 86% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,450 psi | 90% | 2917 fps | 98.6% |
| IMR 4350 | <<locked>> | 98% | 57,580 psi | 90% | 2963 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,332 psi | 87% | 2910 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,982 psi | 83% | 2930 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 54,694 psi | 86% | 2940 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,377 psi | 90% | 2917 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,013 psi | 86% | 2890 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,493 psi | 90% | 2890 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,651 psi | 87% | 2897 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,926 psi | 86% | 2907 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 55,898 psi | 88% | 2943 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 57,305 psi | 90% | 2913 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,259 psi | 85% | 2861 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,130 psi | 88% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,607 psi | 86% | 2956 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 48,428 psi | 76% | 2956 fps | 97.1% |
| Norma URP | <<locked>> | 96% | 54,172 psi | 85% | 2963 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 56,869 psi | 89% | 2979 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,681 psi | 89% | 3018 fps | 99.2% |
| Ramshot TAC | <<locked>> | 84% | 57,725 psi | 90% | 2943 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,479 psi | 90% | 2956 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,376 psi | 57% | 1844 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,462 psi | 85% | 2900 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,609 psi | 90% | 3035 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,421 psi | 90% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,187 psi | 86% | 3002 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,186 psi | 85% | 3028 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,665 psi | 86% | 2841 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,624 psi | 90% | 2907 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,058 psi | 89% | 2949 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,314 psi | 80% | 2927 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,913 psi | 89% | 2933 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,926 psi | 86% | 2907 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,013 psi | 86% | 2890 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,651 psi | 87% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,898 psi | 88% | 2943 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,347 psi | 87% | 2963 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,173 psi | 88% | 2917 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,855 psi | 89% | 2940 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,056 psi | 86% | 2799 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,390 psi | 87% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,940 psi | 86% | 2854 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,821 psi | 80% | 2923 fps | 96.2% |
| Somchem S335 | <<locked>> | 84% | 54,447 psi | 85% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,767 psi | 87% | 2907 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,334 psi | 90% | 2949 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,289 psi | 88% | 3022 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,938 psi | 81% | 2904 fps | 97.3% |
| Unknown powder | <<locked>> | 94% | 55,216 psi | 87% | 2972 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 56,942 psi | 89% | 2789 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,897 psi | 86% | 2779 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,667 psi | 90% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,508 psi | 90% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,303 psi | 87% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,680 psi | 87% | 2943 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 56,956 psi | 89% | 2920 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,435 psi | 90% | 2910 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,043 psi | 88% | 2992 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,008 psi | 75% | 2904 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,652 psi | 89% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,709 psi | 87% | 2999 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,856 psi | 61% | 2848 fps | 99.8% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,375 psi | 85% | 2930 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% | 52,518 psi | 82% | 2762 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,440 psi | 71% | 2694 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,227 psi | 80% | 2835 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,136 psi | 71% | 2680 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 37,318 psi | 58% | 2628 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,989 psi | 67% | 2694 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,142 psi | 54% | 2575 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 48,399 psi | 76% | 2808 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,118 psi | 64% | 2654 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 50,096 psi | 79% | 2897 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,459 psi | 79% | 2812 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,692 psi | 81% | 2792 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,527 psi | 70% | 2854 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 49,734 psi | 78% | 2894 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,278 psi | 65% | 2680 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,005 psi | 69% | 2743 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,923 psi | 50% | 2526 fps | 95% |
| Alliant Reloder-17 | 57.2 gr | 80% | 35,708 psi | 56% | 2657 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,023 psi | 77% | 2884 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,733 psi | 47% | 2493 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,345 psi | 54% | 2674 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,935 psi | 75% | 2818 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 41,002 psi | 64% | 2687 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 44,454 psi | 70% | 2713 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,011 psi | 82% | 2795 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,908 psi | 78% | 2838 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,650 psi | 84% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,655 psi | 65% | 2690 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 84% | 42,540 psi | 67% | 2759 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 46,717 psi | 73% | 2795 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 48,878 psi | 77% | 2818 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,472 psi | 46% | 2431 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,569 psi | 67% | 2746 fps | 99.7% |
| Hodgdon Superformance | 66.5 gr | 88% | 44,019 psi | 69% | 2815 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 42% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,569 psi | 68% | 2707 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 45,049 psi | 71% | 2743 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,408 psi | 63% | 2631 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,453 psi | 67% | 2648 fps | 95.5% |
| IMR 4350 | <<locked>> | 90% | 44,701 psi | 70% | 2743 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,279 psi | 68% | 2694 fps | 95.7% |
| IMR 4831 | <<locked>> | 84% | 31,879 psi | 50% | 2500 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 45,121 psi | 71% | 2776 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,459 psi | 79% | 2812 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,167 psi | 75% | 2789 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,153 psi | 75% | 2743 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,453 psi | 68% | 2697 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,985 psi | 60% | 2585 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 40,988 psi | 64% | 2671 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 47,572 psi | 75% | 2759 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,022 psi | 75% | 2762 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,381 psi | 68% | 2733 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 51,053 psi | 80% | 2897 fps | 95.8% |
| Norma MRP | <<locked>> | 96% | 42,351 psi | 66% | 2831 fps | 95.3% |
| Norma URP | <<locked>> | 82% | 34,287 psi | 54% | 2575 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 43,308 psi | 68% | 2749 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 38,029 psi | 60% | 2671 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 50,488 psi | 79% | 2825 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,372 psi | 79% | 2848 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,901 psi | 66% | 2674 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,934 psi | 74% | 2858 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,956 psi | 59% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,866 psi | 53% | 2589 fps | 95.4% |
| ReloadSwiss RS 70 | 61 gr | 84% | 35,969 psi | 56% | 2654 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,503 psi | 81% | 2792 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,237 psi | 71% | 2710 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,740 psi | 61% | 2631 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 47,848 psi | 75% | 2864 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 44,454 psi | 70% | 2713 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,985 psi | 60% | 2585 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,167 psi | 75% | 2789 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,453 psi | 68% | 2697 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,988 psi | 64% | 2671 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,566 psi | 62% | 2680 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,023 psi | 77% | 2802 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,905 psi | 74% | 2779 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,646 psi | 76% | 2703 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,741 psi | 64% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 42,525 psi | 67% | 2638 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,384 psi | 74% | 2861 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 48,370 psi | 76% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,805 psi | 76% | 2799 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 39,407 psi | 62% | 2635 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 28,747 psi | 45% | 2467 fps | 97.2% |
| Somchem S385 | <<locked>> | 96% | 45,658 psi | 72% | 2792 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 34,722 psi | 54% | 2572 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 53,621 psi | 84% | 2743 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,832 psi | 72% | 2644 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,049 psi | 71% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,860 psi | 70% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,678 psi | 53% | 2487 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 34,882 psi | 55% | 2552 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 80% | 53,258 psi | 83% | 2867 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,382 psi | 70% | 2707 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,331 psi | 55% | 2592 fps | 96% |
| Vihtavuori N555 | <<locked>> | 86% | 30,255 psi | 47% | 2516 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,098 psi | 52% | 2497 fps | 97.6% |
| Winchester 760 | <<locked>> | 84% | 42,540 psi | 67% | 2759 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,094 psi | 44% | 2516 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,415 psi | 79% | 2864 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 101 powders for .300 WSM loaded with the .307 | 165gr | Rhino Solid Shank. Alliant Reloder-17 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,801 fps to 3,071 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 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 165.0 gr projectile in 0.307" calls for a 1:15.0 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 .307 | 165gr | Rhino Solid Shank 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.