Load Specifications
Bullet Manufacturer:Reichenberg
Bullet Weight:156 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:1:12.5
Load data in caliber .300 WSM with .308 | 156gr | Reichenbeg HDB Ogival bullet and 103 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 Power Pro 2000-MR 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 2015 | <<locked>> | 84% | 54,360 psi | 85% | 2867 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,202 psi | 88% | 2943 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,217 psi | 88% | 2933 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,072 psi | 89% | 2999 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,072 psi | 89% | 2999 fps | 100% |
| Accurate 2700 | <<locked>> | 94% | 57,334 psi | 90% | 2946 fps | 97.2% |
| Accurate 4064 | <<locked>> | 92% | 56,217 psi | 88% | 2982 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,869 psi | 89% | 3074 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 88% | 57,203 psi | 90% | 3025 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,955 psi | 86% | 2972 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,304 psi | 88% | 2976 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 57,116 psi | 90% | 2946 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,290 psi | 90% | 3153 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,868 psi | 86% | 2992 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,566 psi | 90% | 2920 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,274 psi | 87% | 3012 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,302 psi | 85% | 3077 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,738 psi | 87% | 3117 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,595 psi | 60% | 2792 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,410 psi | 68% | 2956 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,522 psi | 90% | 3045 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 55,187 psi | 86% | 3005 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,376 psi | 87% | 2972 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,505 psi | 85% | 2904 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,680 psi | 87% | 3005 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,925 psi | 85% | 3048 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 84% | 56,159 psi | 88% | 2956 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,434 psi | 88% | 3022 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 94% | 54,085 psi | 85% | 3041 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 98% | 54,636 psi | 86% | 2999 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 86% | 54,302 psi | 85% | 2982 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,589 psi | 79% | 2946 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 57,537 psi | 90% | 3068 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,159 psi | 90% | 3114 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 55% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 54,534 psi | 85% | 2969 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 56,043 psi | 88% | 2989 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 56,768 psi | 89% | 2989 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 94% | 56,246 psi | 88% | 2963 fps | 97.8% |
| IMR 4198 | <<locked>> | 82% | 57,450 psi | 90% | 2877 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,840 psi | 88% | 2999 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,711 psi | 90% | 3012 fps | 97.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,601 psi | 75% | 2910 fps | 98.7% |
| IMR 4895 | <<locked>> | 90% | 56,695 psi | 89% | 3045 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,304 psi | 88% | 2976 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,333 psi | 88% | 2956 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,072 psi | 89% | 2999 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,710 psi | 89% | 2949 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 57,464 psi | 90% | 2999 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,652 psi | 89% | 2999 fps | 98.9% |
| Lovex S070 | <<locked>> | 98% | 54,070 psi | 85% | 2979 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 55,622 psi | 87% | 2966 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,565 psi | 89% | 2969 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,447 psi | 85% | 2999 fps | 99.9% |
| Norma 204ᴾ | <<locked>> | 100% | 56,681 psi | 89% | 3051 fps | 96.1% |
| Norma URPᴾ | <<locked>> | 100% | 55,883 psi | 88% | 3064 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,201 psi | 87% | 3025 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,563 psi | 86% | 3054 fps | 98.4% |
| Ramshot TAC | <<locked>> | 86% | 56,811 psi | 89% | 2995 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,318 psi | 88% | 3012 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,217 psi | 90% | 2976 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,708 psi | 56% | 1877 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,666 psi | 87% | 2953 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,753 psi | 89% | 3002 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,941 psi | 88% | 3084 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,477 psi | 87% | 3120 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,797 psi | 89% | 3100 fps | 99.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,434 psi | 88% | 3130 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 86% | 56,391 psi | 88% | 2943 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,231 psi | 88% | 2963 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,042 psi | 86% | 2995 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,376 psi | 87% | 2972 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,652 psi | 89% | 2999 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,072 psi | 89% | 2999 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,464 psi | 90% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,070 psi | 85% | 2979 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,188 psi | 90% | 3061 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,882 psi | 86% | 2966 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,709 psi | 87% | 2995 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,392 psi | 90% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,215 psi | 85% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,363 psi | 90% | 2953 fps | 97.9% |
| Somchem S321 | <<locked>> | 84% | 57,667 psi | 90% | 3009 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,594 psi | 89% | 2897 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,607 psi | 86% | 2959 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 55,376 psi | 87% | 2995 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,009 psi | 78% | 3005 fps | 100% |
| Unknown powder | <<locked>> | 98% | 56,840 psi | 89% | 3071 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 84% | 55,869 psi | 88% | 2851 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 57,043 psi | 89% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,086 psi | 88% | 2927 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,318 psi | 88% | 2936 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,711 psi | 90% | 3045 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,028 psi | 88% | 2982 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,985 psi | 88% | 2966 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,085 psi | 85% | 3035 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,322 psi | 66% | 2871 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,288 psi | 87% | 2982 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,595 psi | 90% | 3035 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,085 psi | 85% | 3041 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,403 psi | 54% | 2776 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,072 psi | 89% | 3022 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% | 47,964 psi | 75% | 2772 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 52,736 psi | 83% | 2890 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,147 psi | 63% | 2680 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,238 psi | 72% | 2831 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,238 psi | 72% | 2831 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 50,096 psi | 79% | 2828 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 37,985 psi | 60% | 2674 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,447 psi | 54% | 2651 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 44,280 psi | 69% | 2802 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 37,536 psi | 59% | 2641 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,441 psi | 73% | 2812 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,804 psi | 73% | 2802 fps | 100% |
| Alliant Power Pro 2000-MR | 56.6 gr | 80% | 40,379 psi | 63% | 2828 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,072 psi | 58% | 2664 fps | 98.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,954 psi | 85% | 2871 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,972 psi | 63% | 2730 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,896 psi | 55% | 2671 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,039 psi | 50% | 2621 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,850 psi | 50% | 2612 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,463 psi | 59% | 2818 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,540 psi | 68% | 2802 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 36,680 psi | 57% | 2664 fps | 98.2% |
| Bofors RP7 | <<locked>> | 92% | 48,776 psi | 76% | 2858 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,167 psi | 75% | 2802 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,339 psi | 71% | 2835 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,256 psi | 79% | 2989 fps | 99.4% |
| Hodgdon H322 | <<locked>> | 80% | 49,240 psi | 77% | 2851 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,681 psi | 59% | 2671 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 88% | 43,859 psi | 69% | 2854 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 96% | 51,300 psi | 80% | 2943 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 44,701 psi | 70% | 2815 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,805 psi | 47% | 2500 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,421 psi | 60% | 2730 fps | 98.6% |
| Hodgdon Superformance | 67.7 gr | 92% | 45,890 psi | 72% | 2910 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,208 psi | 41% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,813 psi | 62% | 2700 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 40,524 psi | 64% | 2740 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,898 psi | 58% | 2621 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 44,295 psi | 69% | 2746 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 54,114 psi | 85% | 2831 fps | 100% |
| IMR 4350 | <<locked>> | 94% | 46,267 psi | 73% | 2835 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,875 psi | 70% | 2789 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 34,301 psi | 54% | 2628 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 40,944 psi | 64% | 2762 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 46,441 psi | 73% | 2812 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 80% | 52,605 psi | 82% | 2900 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,265 psi | 68% | 2779 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,469 psi | 70% | 2740 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 39,378 psi | 62% | 2684 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 38,827 psi | 61% | 2671 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 44,730 psi | 70% | 2812 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 43,091 psi | 68% | 2749 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 43,555 psi | 68% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,320 psi | 62% | 2720 fps | 98% |
| Norma 204 | <<locked>> | 98% | 53,069 psi | 83% | 2995 fps | 95.3% |
| Norma URP | <<locked>> | 86% | 35,012 psi | 55% | 2657 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 39,044 psi | 61% | 2730 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 41,887 psi | 66% | 2818 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 46,499 psi | 73% | 2818 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,832 psi | 72% | 2835 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,227 psi | 79% | 2864 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,411 psi | 41% | 1677 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,025 psi | 82% | 2897 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,584 psi | 68% | 2769 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,105 psi | 66% | 2838 fps | 98.1% |
| ReloadSwiss RS 60 | 55.7 gr | 80% | 34,156 psi | 54% | 2694 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,869 psi | 58% | 2730 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,697 psi | 62% | 2802 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 46,905 psi | 74% | 2792 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,075 psi | 64% | 2700 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 34,360 psi | 54% | 2602 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 92% | 48,776 psi | 76% | 2858 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,827 psi | 61% | 2671 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,265 psi | 68% | 2779 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,378 psi | 62% | 2684 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 44,730 psi | 70% | 2812 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,534 psi | 56% | 2654 fps | 96.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,614 psi | 70% | 2789 fps | 97.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,772 psi | 67% | 2766 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,657 psi | 70% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,086 psi | 58% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,947 psi | 69% | 2730 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 50,198 psi | 79% | 2894 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,135 psi | 69% | 2707 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,309 psi | 69% | 2785 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 35,259 psi | 55% | 2612 fps | 97.3% |
| Somchem S365 | <<locked>> | 82% | 27,151 psi | 43% | 2477 fps | 95.3% |
| Unknown powder | <<locked>> | 86% | 38,159 psi | 60% | 2720 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 49,458 psi | 78% | 2759 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,148 psi | 66% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,582 psi | 64% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,843 psi | 64% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,081 psi | 47% | 2461 fps | 97% |
| Vihtavuori N160 | <<locked>> | 84% | 35,665 psi | 56% | 2638 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 48,965 psi | 77% | 2867 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,437 psi | 63% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,172 psi | 57% | 2680 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 32,227 psi | 51% | 2638 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,805 psi | 47% | 2464 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 49,879 psi | 78% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,859 psi | 69% | 2854 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,168 psi | 47% | 2635 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,069 psi | 83% | 2963 fps | 100% |
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 103 powders for .300 WSM loaded with the .308 | 156gr | Reichenbeg HDB Ogival. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,153 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,153 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.308" calls for a 1:12.5 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 Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for .300 WSM with the .308 | 156gr | Reichenbeg HDB Ogival 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.