Load Specifications
Bullet Manufacturer:Frontier Bullets
Bullet Weight:150 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:1:13.0
Load data in caliber .300 WSM with .308 | 150gr | Frontier PH HPFB bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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.
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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% | 54,665 psi | 86% | 2920 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,536 psi | 89% | 2995 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,753 psi | 89% | 2989 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,853 psi | 86% | 3005 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,043 psi | 88% | 2982 fps | 96.5% |
| Accurate 4064 | <<locked>> | 92% | 56,681 psi | 89% | 3038 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,724 psi | 89% | 3123 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 88% | 57,261 psi | 90% | 3074 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 54,650 psi | 86% | 3015 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,014 psi | 88% | 3022 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,101 psi | 89% | 2999 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 56,956 psi | 89% | 3196 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,534 psi | 85% | 3038 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,537 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,245 psi | 87% | 3061 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,070 psi | 85% | 3120 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,666 psi | 87% | 3169 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,725 psi | 61% | 2835 fps | 98% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,337 psi | 68% | 2995 fps | 97.1% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,087 psi | 89% | 3087 fps | 99.6% |
| Bofors RP3 | <<locked>> | 92% | 55,288 psi | 87% | 3054 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,405 psi | 87% | 3018 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,360 psi | 85% | 2953 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,680 psi | 87% | 3051 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,751 psi | 84% | 3094 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 82% | 56,753 psi | 89% | 3015 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,434 psi | 88% | 3071 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 98% | 55,985 psi | 88% | 3117 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 96% | 56,507 psi | 89% | 3074 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 54,128 psi | 85% | 3028 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,386 psi | 79% | 2992 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,305 psi | 90% | 3117 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,058 psi | 89% | 3156 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 55% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,550 psi | 87% | 3031 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 57,696 psi | 90% | 3068 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,551 psi | 90% | 3051 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,128 psi | 85% | 2972 fps | 97% |
| IMR 4198 | <<locked>> | 82% | 57,217 psi | 90% | 2927 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,622 psi | 87% | 3041 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,276 psi | 90% | 3051 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,592 psi | 84% | 3054 fps | 99.2% |
| IMR 4895 | <<locked>> | 90% | 56,652 psi | 89% | 3094 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 56,014 psi | 88% | 3022 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,608 psi | 89% | 3009 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,174 psi | 90% | 3051 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,695 psi | 89% | 2995 fps | 99.9% |
| Lovex S062 | <<locked>> | 92% | 57,551 psi | 90% | 3051 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,608 psi | 89% | 3045 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 54,041 psi | 85% | 3022 fps | 97.3% |
| Norma 201 | <<locked>> | 88% | 55,898 psi | 88% | 3015 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,362 psi | 88% | 3018 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,418 psi | 85% | 3048 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 55,666 psi | 87% | 3110 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 90% | 54,969 psi | 86% | 3071 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,505 psi | 85% | 3100 fps | 98% |
| Ramshot TAC | <<locked>> | 86% | 56,478 psi | 89% | 3038 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,217 psi | 88% | 3058 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,188 psi | 90% | 3025 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,752 psi | 56% | 1913 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,463 psi | 87% | 2999 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,666 psi | 89% | 3045 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,738 psi | 87% | 3133 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,143 psi | 86% | 3163 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,434 psi | 88% | 3143 fps | 99.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,014 psi | 88% | 3169 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 86% | 56,884 psi | 89% | 2999 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,492 psi | 89% | 3015 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,143 psi | 86% | 3045 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,405 psi | 87% | 3018 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,608 psi | 89% | 3045 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,174 psi | 90% | 3051 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,551 psi | 90% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,041 psi | 85% | 3022 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 56,884 psi | 89% | 3107 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,940 psi | 86% | 3012 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,651 psi | 87% | 3041 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,508 psi | 90% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,696 psi | 90% | 2949 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,290 psi | 90% | 2999 fps | 97.5% |
| Somchem S321 | <<locked>> | 84% | 57,667 psi | 90% | 3058 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,739 psi | 89% | 2949 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,505 psi | 85% | 3005 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 55,405 psi | 87% | 3041 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,850 psi | 78% | 3051 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,159 psi | 90% | 2917 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,653 psi | 90% | 2936 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,883 psi | 88% | 2976 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,101 psi | 89% | 2995 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,000 psi | 89% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,433 psi | 85% | 3045 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 56,840 psi | 89% | 3025 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,143 psi | 86% | 2989 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,130 psi | 90% | 3107 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,351 psi | 66% | 2917 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,013 psi | 86% | 3025 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 56,637 psi | 89% | 3071 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,985 psi | 88% | 3117 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,780 psi | 55% | 2822 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,622 psi | 87% | 3051 fps | 100% |
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% | 48,182 psi | 76% | 2822 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,881 psi | 83% | 2940 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,002 psi | 64% | 2743 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,863 psi | 75% | 2897 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,110 psi | 77% | 2867 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 38,740 psi | 61% | 2730 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 37,362 psi | 59% | 2759 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 44,324 psi | 69% | 2848 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 37,826 psi | 59% | 2687 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,383 psi | 73% | 2858 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 46,731 psi | 73% | 2851 fps | 100% |
| Alliant Power Pro 2000-MR | 56.9 gr | 80% | 40,321 psi | 63% | 2867 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,449 psi | 59% | 2710 fps | 97.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,012 psi | 85% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,074 psi | 63% | 2776 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 37,260 psi | 58% | 2769 fps | 95.7% |
| Alliant Reloder-17 | 56 gr | 80% | 32,198 psi | 50% | 2661 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 32,184 psi | 50% | 2657 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,451 psi | 63% | 2927 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,642 psi | 68% | 2848 fps | 97.6% |
| Bofors RP3 | <<locked>> | 80% | 36,956 psi | 58% | 2710 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 48,950 psi | 77% | 2904 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,153 psi | 75% | 2848 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,295 psi | 71% | 2877 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,937 psi | 78% | 3028 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 80% | 53,243 psi | 83% | 2966 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,855 psi | 59% | 2713 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 92% | 45,614 psi | 71% | 2930 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 94% | 53,127 psi | 83% | 3018 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 44,773 psi | 70% | 2858 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 32,198 psi | 50% | 2605 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,756 psi | 64% | 2825 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 94% | 49,226 psi | 77% | 3018 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,076 psi | 68% | 2812 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 44,338 psi | 69% | 2858 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,682 psi | 62% | 2723 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,732 psi | 75% | 2858 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 53,998 psi | 85% | 2881 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 49,182 psi | 77% | 2930 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 90% | 47,790 psi | 75% | 2887 fps | 95.5% |
| IMR 4831 | <<locked>> | 88% | 36,042 psi | 56% | 2710 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,060 psi | 64% | 2808 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 80% | 46,383 psi | 73% | 2858 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 52,663 psi | 83% | 2949 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,642 psi | 68% | 2831 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 44,498 psi | 70% | 2785 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 39,595 psi | 62% | 2730 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 41,684 psi | 65% | 2769 fps | 95.4% |
| Lovex S070 | <<locked>> | 92% | 44,933 psi | 70% | 2854 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 43,584 psi | 68% | 2802 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 43,888 psi | 69% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,465 psi | 62% | 2762 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 37,420 psi | 59% | 2759 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,030 psi | 61% | 2772 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 94% | 44,614 psi | 70% | 2917 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 46,412 psi | 73% | 2858 fps | 96.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,948 psi | 72% | 2884 fps | 98.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,125 psi | 79% | 2907 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 42% | 1713 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,141 psi | 82% | 2949 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,772 psi | 69% | 2815 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,221 psi | 66% | 2884 fps | 97.7% |
| ReloadSwiss RS 60 | 56 gr | 80% | 34,272 psi | 54% | 2733 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 37,057 psi | 58% | 2772 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,798 psi | 62% | 2841 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 47,558 psi | 75% | 2851 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,394 psi | 65% | 2749 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 34,708 psi | 54% | 2648 fps | 97% |
| Rottweil R 907 | <<locked>> | 92% | 48,950 psi | 77% | 2904 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,684 psi | 65% | 2769 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,642 psi | 68% | 2831 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 39,595 psi | 62% | 2730 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 44,933 psi | 70% | 2854 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,810 psi | 56% | 2703 fps | 96.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,657 psi | 70% | 2831 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,975 psi | 67% | 2815 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,773 psi | 70% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,246 psi | 58% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 47,065 psi | 74% | 2828 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 50,343 psi | 79% | 2943 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,541 psi | 70% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,440 psi | 70% | 2831 fps | 98.6% |
| Somchem S355 | <<locked>> | 80% | 35,723 psi | 56% | 2661 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 27,644 psi | 43% | 2526 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 50,531 psi | 79% | 2822 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,107 psi | 71% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,756 psi | 64% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,365 psi | 65% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,808 psi | 53% | 2592 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 36,651 psi | 57% | 2703 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 46,557 psi | 73% | 2854 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 40,016 psi | 63% | 2726 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 38,551 psi | 60% | 2759 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 94% | 34,780 psi | 55% | 2743 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 32,140 psi | 50% | 2562 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 46,180 psi | 72% | 2900 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 45,818 psi | 72% | 2936 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 98% | 32,532 psi | 51% | 2746 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,337 psi | 66% | 2815 fps | 98.8% |
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 100 powders for .300 WSM loaded with the .308 | 150gr | Frontier PH HPFB. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,196 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,196 fps. Accurate 4350 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .300 WSM with the .308 | 150gr | Frontier PH HPFB 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.