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:1:11.5
Load data in caliber .300 WSM with .307 | 165gr | Rhino Penetrator bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, 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% | 56,376 psi | 88% | 2799 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,317 psi | 87% | 2825 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,347 psi | 87% | 2877 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,448 psi | 87% | 2831 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,221 psi | 66% | 2717 fps | 96.2% |
| Accurate 4064 | <<locked>> | 90% | 55,187 psi | 86% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,347 psi | 87% | 2963 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 55,405 psi | 87% | 2904 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 56,652 psi | 89% | 2907 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,346 psi | 85% | 2851 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,535 psi | 87% | 2828 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,201 psi | 87% | 3025 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,550 psi | 89% | 2927 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,203 psi | 90% | 2949 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,333 psi | 88% | 3018 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 53,795 psi | 84% | 2995 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,277 psi | 63% | 2746 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,295 psi | 71% | 2913 fps | 98.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,230 psi | 87% | 2920 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 57,392 psi | 90% | 2943 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,276 psi | 90% | 2913 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,014 psi | 88% | 2835 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,479 psi | 90% | 2933 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,825 psi | 87% | 2986 fps | 99.9% |
| Hodgdon H322 | <<locked>> | 82% | 54,389 psi | 85% | 2835 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 54,795 psi | 86% | 2907 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 94% | 56,072 psi | 88% | 2982 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 98% | 56,507 psi | 89% | 2940 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 55,985 psi | 88% | 2913 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,431 psi | 82% | 2887 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,796 psi | 87% | 2953 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,027 psi | 86% | 2992 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 56% | 1772 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,086 psi | 88% | 2900 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 54,549 psi | 85% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,158 psi | 86% | 2874 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 92% | 54,694 psi | 86% | 2848 fps | 97.8% |
| IMR 4350ᴾ | <<locked>> | 100% | 57,624 psi | 90% | 2940 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,811 psi | 87% | 2894 fps | 98% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,443 psi | 77% | 2854 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 55,042 psi | 86% | 2927 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,346 psi | 85% | 2851 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,347 psi | 87% | 2877 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,882 psi | 86% | 2828 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 55,811 psi | 87% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,085 psi | 86% | 2887 fps | 98.9% |
| Lovex S070 | <<locked>> | 98% | 56,246 psi | 88% | 2923 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 54,172 psi | 85% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,723 psi | 86% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,376 psi | 88% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 98% | 54,752 psi | 86% | 2933 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 57,595 psi | 90% | 2999 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 90% | 57,232 psi | 90% | 2963 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,463 psi | 88% | 2995 fps | 98.9% |
| Ramshot TAC | <<locked>> | 84% | 54,766 psi | 86% | 2874 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,230 psi | 85% | 2887 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,187 psi | 86% | 2854 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,114 psi | 57% | 1814 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,363 psi | 90% | 2881 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,868 psi | 86% | 2884 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,056 psi | 85% | 2963 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 57,363 psi | 90% | 3051 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 54,926 psi | 86% | 2982 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,476 psi | 85% | 3012 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 55,114 psi | 86% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,853 psi | 86% | 2848 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,174 psi | 90% | 2933 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,276 psi | 90% | 2913 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,085 psi | 86% | 2887 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,347 psi | 87% | 2877 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,811 psi | 87% | 2881 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,246 psi | 88% | 2923 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,361 psi | 87% | 2943 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,029 psi | 89% | 2910 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,551 psi | 90% | 2927 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,637 psi | 87% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,043 psi | 88% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,477 psi | 87% | 2838 fps | 97.9% |
| Somchem S321 | <<locked>> | 82% | 55,753 psi | 87% | 2887 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,042 psi | 86% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,318 psi | 88% | 2894 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 57,522 psi | 90% | 2933 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,141 psi | 82% | 2949 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,370 psi | 76% | 2825 fps | 96% |
| Unknown powder | <<locked>> | 96% | 55,274 psi | 87% | 2956 fps | 99.4% |
| Vihtavuori N130 | <<locked>> | 84% | 57,537 psi | 90% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 55,288 psi | 87% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,447 psi | 85% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,491 psi | 85% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 55,347 psi | 87% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,695 psi | 87% | 2923 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 57,595 psi | 90% | 2910 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,667 psi | 90% | 2894 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,970 psi | 88% | 2972 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,425 psi | 70% | 2828 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,159 psi | 90% | 2920 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,579 psi | 87% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,072 psi | 88% | 2982 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,071 psi | 57% | 2753 fps | 99% |
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% | 49,763 psi | 78% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,728 psi | 67% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,327 psi | 76% | 2776 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 45,469 psi | 71% | 2664 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 39,566 psi | 62% | 2664 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 40,408 psi | 63% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,895 psi | 53% | 2556 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 46,050 psi | 72% | 2746 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 39,160 psi | 61% | 2595 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,095 psi | 75% | 2753 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 48,617 psi | 76% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | 54.8 gr | 80% | 41,872 psi | 66% | 2776 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,769 psi | 61% | 2615 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,698 psi | 65% | 2680 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,113 psi | 53% | 2569 fps | 95.5% |
| Alliant Reloder-17 | 54 gr | 80% | 33,591 psi | 53% | 2585 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,573 psi | 46% | 2470 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,564 psi | 57% | 2717 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,266 psi | 71% | 2749 fps | 98.6% |
| Bofors RP3 | <<locked>> | 80% | 38,493 psi | 60% | 2618 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 44,759 psi | 70% | 2697 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,705 psi | 78% | 2740 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,007 psi | 74% | 2772 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,054 psi | 82% | 2923 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 80% | 51,140 psi | 80% | 2789 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,334 psi | 62% | 2621 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 86% | 42,496 psi | 67% | 2743 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 94% | 49,995 psi | 78% | 2831 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 46,470 psi | 73% | 2756 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,399 psi | 46% | 2411 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,030 psi | 63% | 2680 fps | 99.2% |
| Hodgdon Superformance | 64.2 gr | 90% | 44,324 psi | 69% | 2799 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 41% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,249 psi | 65% | 2644 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 42,366 psi | 66% | 2680 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,305 psi | 60% | 2569 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 43,134 psi | 68% | 2641 fps | 95.3% |
| IMR 4350 | <<locked>> | 92% | 44,976 psi | 70% | 2726 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,700 psi | 68% | 2680 fps | 95.3% |
| IMR 4831 | <<locked>> | 88% | 33,837 psi | 53% | 2536 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 42,743 psi | 67% | 2710 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 48,095 psi | 75% | 2753 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,208 psi | 71% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,905 psi | 72% | 2680 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,075 psi | 64% | 2631 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,247 psi | 60% | 2572 fps | 95.3% |
| Lovex S070 | <<locked>> | 88% | 41,075 psi | 64% | 2654 fps | 95% |
| Norma 201 | <<locked>> | 80% | 45,165 psi | 71% | 2697 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 45,310 psi | 71% | 2700 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,075 psi | 64% | 2671 fps | 98.7% |
| Norma 204 | <<locked>> | 96% | 51,227 psi | 80% | 2877 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 34,389 psi | 54% | 2562 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 40,567 psi | 64% | 2680 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 40,727 psi | 64% | 2713 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 47,979 psi | 75% | 2759 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,572 psi | 75% | 2779 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,692 psi | 81% | 2799 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,919 psi | 42% | 1624 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,838 psi | 84% | 2831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,424 psi | 66% | 2661 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,135 psi | 69% | 2789 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,723 psi | 56% | 2651 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,172 psi | 57% | 2635 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 38,624 psi | 61% | 2697 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 49,052 psi | 77% | 2736 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,815 psi | 67% | 2648 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 36,245 psi | 57% | 2562 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 44,759 psi | 70% | 2697 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,247 psi | 60% | 2572 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,208 psi | 71% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,075 psi | 64% | 2631 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 41,075 psi | 64% | 2654 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,275 psi | 58% | 2615 fps | 97.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,296 psi | 73% | 2733 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,556 psi | 70% | 2717 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,325 psi | 73% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,667 psi | 61% | 2513 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,627 psi | 67% | 2621 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 52,098 psi | 82% | 2831 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,021 psi | 72% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,093 psi | 72% | 2730 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 37,173 psi | 58% | 2572 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 26,992 psi | 42% | 2398 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 45,281 psi | 71% | 2766 fps | 95.2% |
| Unknown powder | <<locked>> | 84% | 37,202 psi | 58% | 2618 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 51,111 psi | 80% | 2690 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,656 psi | 68% | 2592 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,525 psi | 67% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,482 psi | 67% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,720 psi | 50% | 2425 fps | 98% |
| Vihtavuori N160 | <<locked>> | 82% | 34,809 psi | 55% | 2536 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 50,763 psi | 80% | 2805 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,989 psi | 66% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,375 psi | 55% | 2579 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 31,966 psi | 50% | 2552 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,256 psi | 49% | 2428 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 51,822 psi | 81% | 2854 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,496 psi | 67% | 2743 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,849 psi | 47% | 2556 fps | 95.9% |
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 99 powders for .300 WSM loaded with the .307 | 165gr | Rhino Penetrator. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,051 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, Alliant Reloder-23 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. Alliant Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 WSM with the .307 | 165gr | 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.