Load Specifications
Bullet Manufacturer:Cutting Edge
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:1:12.0
Load data in caliber .300 WSM with .308 | 150gr | CutEdge Maximus bullet and 104 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.
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>> | 86% | 56,536 psi | 89% | 2953 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 54,752 psi | 86% | 2976 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 54,491 psi | 85% | 2969 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 57,232 psi | 90% | 3048 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,592 psi | 86% | 2966 fps | 96.2% |
| Accurate 4064 | <<locked>> | 92% | 54,549 psi | 85% | 3015 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 3100 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 88% | 55,767 psi | 87% | 3054 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 56,768 psi | 89% | 3051 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 54,897 psi | 86% | 3009 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 55,434 psi | 87% | 2982 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 56,594 psi | 89% | 3120 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,535 psi | 87% | 3179 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 56,797 psi | 89% | 3077 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 55,956 psi | 88% | 2956 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,232 psi | 90% | 3097 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 52,721 psi | 83% | 3104 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 53,969 psi | 85% | 3143 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,318 psi | 58% | 2805 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,640 psi | 65% | 2963 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,680 psi | 87% | 3068 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 57,435 psi | 90% | 3094 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 57,493 psi | 90% | 3054 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 86% | 56,637 psi | 89% | 2992 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,070 psi | 85% | 3035 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,289 psi | 88% | 3143 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 55,303 psi | 87% | 2999 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 56,492 psi | 89% | 3028 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 54,853 psi | 86% | 3048 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 98% | 54,244 psi | 85% | 3094 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 96% | 55,172 psi | 86% | 3058 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 56,304 psi | 88% | 3068 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 48,950 psi | 77% | 2972 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 55,840 psi | 88% | 3100 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,376 psi | 87% | 3133 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,128 psi | 55% | 1867 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 57,711 psi | 90% | 3071 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 56,101 psi | 88% | 3051 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,144 psi | 88% | 3035 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 56,492 psi | 89% | 3015 fps | 97.4% |
| IMR 4198 | <<locked>> | 82% | 56,246 psi | 88% | 2917 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,273 psi | 85% | 3025 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,014 psi | 88% | 3035 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 51,721 psi | 81% | 3031 fps | 99% |
| IMR 4895 | <<locked>> | 90% | 55,100 psi | 86% | 3074 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 54,897 psi | 86% | 3009 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 54,853 psi | 86% | 2989 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 55,405 psi | 87% | 3031 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,448 psi | 87% | 2982 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 55,898 psi | 88% | 3031 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,071 psi | 86% | 3025 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 3058 fps | 97.6% |
| Norma 201 | <<locked>> | 90% | 57,725 psi | 90% | 3048 fps | 100% |
| Norma 202 | <<locked>> | 88% | 54,824 psi | 86% | 3002 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,391 psi | 88% | 3084 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 53,838 psi | 84% | 3084 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 92% | 57,334 psi | 90% | 3114 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 52,852 psi | 83% | 3077 fps | 97.7% |
| Ramshot TAC | <<locked>> | 86% | 55,172 psi | 86% | 3022 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 54,824 psi | 86% | 3045 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 55,840 psi | 88% | 3009 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,447 psi | 56% | 1909 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,288 psi | 85% | 2986 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,230 psi | 87% | 3028 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,157 psi | 85% | 3110 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 57,609 psi | 90% | 3205 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3120 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 3150 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 54,998 psi | 86% | 2979 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 54,824 psi | 86% | 2995 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,043 psi | 89% | 3081 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 57,493 psi | 90% | 3054 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,071 psi | 86% | 3025 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 55,405 psi | 87% | 3031 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 55,898 psi | 88% | 3031 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 55,941 psi | 88% | 3058 fps | 97.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 57,682 psi | 90% | 3012 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,434 psi | 87% | 3091 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,029 psi | 89% | 2982 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,174 psi | 90% | 3054 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,215 psi | 85% | 3025 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,057 psi | 88% | 2940 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,362 psi | 88% | 2936 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 55,825 psi | 87% | 2979 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 56,130 psi | 88% | 3041 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,245 psi | 87% | 2936 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 56,811 psi | 89% | 3045 fps | 99.9% |
| Somchem S355 | <<locked>> | 96% | 57,334 psi | 90% | 3077 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,240 psi | 76% | 3031 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 55,753 psi | 87% | 2904 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,260 psi | 88% | 2923 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 54,491 psi | 85% | 2963 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 55,622 psi | 87% | 2979 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,448 psi | 87% | 3005 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,826 psi | 89% | 3087 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 86% | 55,390 psi | 87% | 3009 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,406 psi | 90% | 3025 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,622 psi | 87% | 3091 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,683 psi | 64% | 2890 fps | 97.5% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3064 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,129 psi | 86% | 3054 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,505 psi | 85% | 3097 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,272 psi | 52% | 2776 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,172 psi | 85% | 3031 fps | 99.9% |
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% | 46,760 psi | 73% | 2808 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,082 psi | 80% | 2920 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,856 psi | 61% | 2710 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,383 psi | 73% | 2877 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,053 psi | 80% | 2904 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 36,753 psi | 58% | 2697 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 35,621 psi | 56% | 2726 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 43,105 psi | 68% | 2828 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 36,564 psi | 57% | 2664 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,252 psi | 71% | 2841 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 45,136 psi | 71% | 2831 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 52,982 psi | 83% | 3061 fps | 99.9% |
| Alliant Power Pro 2000-MR | 56.6 gr | 80% | 39,030 psi | 61% | 2844 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,984 psi | 56% | 2684 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 52,707 psi | 83% | 2910 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,827 psi | 61% | 2753 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,172 psi | 57% | 2746 fps | 95.2% |
| Alliant Reloder-17 | 57.2 gr | 82% | 33,301 psi | 52% | 2700 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,880 psi | 52% | 2684 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,754 psi | 61% | 2894 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,293 psi | 66% | 2828 fps | 97.3% |
| Bofors RP3 | <<locked>> | 80% | 35,317 psi | 55% | 2680 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 50,589 psi | 79% | 2940 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,094 psi | 74% | 2835 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 43,816 psi | 69% | 2858 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,718 psi | 76% | 3015 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 51,779 psi | 81% | 2946 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 52,794 psi | 83% | 2972 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 39,059 psi | 61% | 2746 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 94% | 47,369 psi | 74% | 2972 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 94% | 51,822 psi | 81% | 3002 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 43,526 psi | 68% | 2841 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,908 psi | 48% | 2575 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,378 psi | 62% | 2802 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 94% | 47,906 psi | 75% | 2995 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,020 psi | 41% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,785 psi | 65% | 2789 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 43,018 psi | 67% | 2841 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,363 psi | 60% | 2700 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,702 psi | 73% | 2841 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 52,939 psi | 83% | 2871 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 47,863 psi | 75% | 2910 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 90% | 46,528 psi | 73% | 2867 fps | 95.1% |
| IMR 4831 | <<locked>> | 90% | 36,941 psi | 58% | 2740 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 39,784 psi | 62% | 2789 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 80% | 45,252 psi | 71% | 2841 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 50,937 psi | 80% | 2927 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 41,959 psi | 66% | 2805 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 43,221 psi | 68% | 2766 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 38,101 psi | 60% | 2703 fps | 98.5% |
| Lovex S065 | <<locked>> | 88% | 40,219 psi | 63% | 2746 fps | 95% |
| Lovex S070 | <<locked>> | 94% | 46,267 psi | 73% | 2890 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 41,959 psi | 66% | 2776 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 42,409 psi | 66% | 2792 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,174 psi | 60% | 2740 fps | 97.3% |
| Norma URP | <<locked>> | 88% | 36,013 psi | 56% | 2730 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 37,666 psi | 59% | 2749 fps | 97% |
| Ramshot Hunter | <<locked>> | 94% | 43,221 psi | 68% | 2894 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 45,092 psi | 71% | 2838 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 44,556 psi | 70% | 2864 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 48,979 psi | 77% | 2894 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,397 psi | 41% | 1709 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 50,720 psi | 79% | 2930 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 45,382 psi | 71% | 2854 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,698 psi | 64% | 2858 fps | 97.4% |
| ReloadSwiss RS 60 | 55.8 gr | 80% | 33,127 psi | 52% | 2710 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,232 psi | 60% | 2808 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,220 psi | 65% | 2884 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 45,774 psi | 72% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,016 psi | 63% | 2726 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 33,286 psi | 52% | 2621 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 50,589 psi | 79% | 2940 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 40,219 psi | 63% | 2746 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,959 psi | 66% | 2805 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 38,101 psi | 60% | 2703 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 46,267 psi | 73% | 2890 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 53,621 psi | 84% | 2949 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,461 psi | 54% | 2677 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,679 psi | 84% | 2936 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 43,149 psi | 68% | 2808 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,626 psi | 65% | 2792 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 43,613 psi | 68% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,114 psi | 57% | 2595 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 45,585 psi | 71% | 2805 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 48,849 psi | 77% | 2923 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 43,062 psi | 67% | 2736 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,062 psi | 67% | 2808 fps | 98.3% |
| Somchem S355 | <<locked>> | 80% | 34,214 psi | 54% | 2631 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 28,094 psi | 44% | 2549 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,342 psi | 77% | 2808 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 43,961 psi | 69% | 2736 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 39,407 psi | 62% | 2713 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,176 psi | 63% | 2723 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,576 psi | 51% | 2569 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 88% | 37,855 psi | 59% | 2740 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 45,136 psi | 71% | 2835 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 38,580 psi | 60% | 2707 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 37,260 psi | 58% | 2736 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 96% | 35,491 psi | 56% | 2769 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,980 psi | 49% | 2536 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 44,947 psi | 70% | 2884 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 47,616 psi | 75% | 2976 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 31,227 psi | 49% | 2707 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,133 psi | 64% | 2799 fps | 98.5% |
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 104 powders for .300 WSM loaded with the .308 | 150gr | CutEdge Maximus. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,205 fps; across all powders the maximum-charge window runs from 1,867 fps to 3,205 fps. Accurate 4350 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:12.0 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 | CutEdge Maximus 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.