Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 150gr | Sako Powerhead Blade bullet and 93 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% | 54,621 psi | 88% | 2943 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 53,345 psi | 86% | 2966 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,230 psi | 89% | 3035 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,217 psi | 90% | 3025 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,454 psi | 71% | 2907 fps | 96.7% |
| Accurate 4064 | <<locked>> | 88% | 53,548 psi | 86% | 3015 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,998 psi | 87% | 3107 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 53,882 psi | 86% | 3051 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 55,042 psi | 88% | 3051 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,260 psi | 90% | 3051 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,853 psi | 86% | 2976 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,809 psi | 86% | 3173 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,303 psi | 89% | 3074 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,753 psi | 89% | 3097 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,259 psi | 89% | 3173 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 52,939 psi | 85% | 3146 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,337 psi | 68% | 2943 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,993 psi | 77% | 3123 fps | 98.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,983 psi | 87% | 3064 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 55,999 psi | 90% | 3091 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,840 psi | 90% | 3061 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,259 psi | 87% | 2979 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,014 psi | 90% | 3081 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,185 psi | 85% | 3045 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 94% | 53,432 psi | 86% | 3104 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 92% | 53,853 psi | 86% | 3068 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 84% | 54,433 psi | 87% | 3061 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,376 psi | 89% | 3094 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,230 psi | 87% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,766 psi | 86% | 3140 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 57% | 1909 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,883 psi | 90% | 3064 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,563 psi | 87% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,476 psi | 87% | 3031 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,331 psi | 87% | 3012 fps | 97.7% |
| IMR 4350 | <<locked>> | 96% | 53,171 psi | 85% | 3035 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,331 psi | 87% | 3038 fps | 97.7% |
| IMR 4831 | <<locked>> | 98% | 54,636 psi | 88% | 3097 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 53,737 psi | 86% | 3074 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 56,260 psi | 90% | 3051 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 53,809 psi | 86% | 3025 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,200 psi | 85% | 2972 fps | 99.9% |
| Lovex S062 | <<locked>> | 88% | 54,418 psi | 87% | 3028 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,838 psi | 86% | 3031 fps | 98.7% |
| Lovex S070 | <<locked>> | 96% | 54,940 psi | 88% | 3071 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 55,956 psi | 90% | 3045 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,156 psi | 85% | 2992 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,940 psi | 88% | 3084 fps | 100% |
| Norma MRPᴾ | <<locked>> | 100% | 47,587 psi | 76% | 3074 fps | 96.3% |
| Norma URP | <<locked>> | 96% | 53,287 psi | 85% | 3097 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 88% | 55,927 psi | 90% | 3110 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,724 psi | 89% | 3150 fps | 98.8% |
| Ramshot TAC | <<locked>> | 82% | 52,953 psi | 85% | 3012 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 52,678 psi | 84% | 3031 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,114 psi | 58% | 1955 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,519 psi | 86% | 3028 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 52,750 psi | 85% | 3107 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,663 psi | 84% | 3150 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,143 psi | 87% | 3130 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,388 psi | 86% | 3159 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 82% | 53,316 psi | 85% | 2976 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,055 psi | 85% | 2989 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,869 psi | 90% | 3081 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,840 psi | 90% | 3061 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,838 psi | 86% | 3031 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 53,809 psi | 86% | 3025 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,418 psi | 87% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,940 psi | 88% | 3071 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,215 psi | 87% | 3091 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,245 psi | 89% | 3051 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,956 psi | 90% | 3074 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,925 psi | 86% | 2933 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,433 psi | 87% | 2930 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,882 psi | 86% | 2979 fps | 97.7% |
| Somchem S335 | <<locked>> | 84% | 53,403 psi | 86% | 2927 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,984 psi | 88% | 3041 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 56,144 psi | 90% | 3081 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,158 psi | 88% | 3150 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,850 psi | 82% | 3025 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 84% | 54,346 psi | 87% | 2917 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,185 psi | 85% | 2959 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,882 psi | 86% | 2976 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,085 psi | 87% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,608 psi | 89% | 3091 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 53,185 psi | 85% | 2995 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,506 psi | 89% | 3018 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,810 psi | 88% | 3097 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,833 psi | 75% | 3022 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,796 psi | 89% | 3064 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,316 psi | 85% | 3045 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 53,432 psi | 86% | 3104 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,826 psi | 61% | 2946 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,115 psi | 90% | 3084 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% | 51,242 psi | 82% | 2894 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,497 psi | 70% | 2805 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,561 psi | 83% | 2979 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,876 psi | 74% | 2841 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 41,495 psi | 67% | 2848 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 41,191 psi | 66% | 2799 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,230 psi | 56% | 2730 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 47,369 psi | 76% | 2933 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 40,234 psi | 65% | 2769 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,545 psi | 79% | 2943 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,357 psi | 81% | 2923 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,540 psi | 70% | 2972 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,914 psi | 64% | 2792 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,931 psi | 69% | 2861 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,215 psi | 56% | 2746 fps | 95.7% |
| Alliant Reloder-17 | 61 gr | 80% | 34,606 psi | 55% | 2756 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,487 psi | 49% | 2635 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,621 psi | 57% | 2831 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,905 psi | 75% | 2940 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 39,682 psi | 64% | 2795 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 46,093 psi | 74% | 2884 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,053 psi | 82% | 2927 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,762 psi | 78% | 2966 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,596 psi | 65% | 2802 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 43,511 psi | 70% | 2913 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 90% | 50,386 psi | 81% | 3005 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 47,863 psi | 77% | 2946 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,269 psi | 49% | 2575 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,164 psi | 71% | 2917 fps | 99.6% |
| Hodgdon Superformance | 72.6 gr | 90% | 46,456 psi | 74% | 2999 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 42% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,890 psi | 74% | 2894 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 47,776 psi | 77% | 2936 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,264 psi | 68% | 2808 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,788 psi | 72% | 2835 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 46,789 psi | 75% | 2917 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 45,020 psi | 72% | 2864 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 34,113 psi | 55% | 2684 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,063 psi | 71% | 2897 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 49,545 psi | 79% | 2943 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,876 psi | 75% | 2910 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,036 psi | 75% | 2867 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 42,090 psi | 67% | 2808 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 39,291 psi | 63% | 2746 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 42,438 psi | 68% | 2835 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,122 psi | 74% | 2877 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 46,673 psi | 75% | 2887 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,322 psi | 68% | 2851 fps | 98.8% |
| Norma MRP | <<locked>> | 98% | 44,367 psi | 71% | 3005 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 35,447 psi | 57% | 2730 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 42,279 psi | 68% | 2864 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 39,682 psi | 64% | 2838 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 49,676 psi | 80% | 2953 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,327 psi | 79% | 2972 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 43% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,843 psi | 65% | 2782 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,847 psi | 74% | 2979 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,869 psi | 59% | 2831 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,056 psi | 56% | 2746 fps | 95.1% |
| ReloadSwiss RS 70 | 66.6 gr | 86% | 37,463 psi | 60% | 2815 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 50,082 psi | 80% | 2920 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,874 psi | 70% | 2828 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 37,362 psi | 60% | 2733 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 46,093 psi | 74% | 2884 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,291 psi | 63% | 2746 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,876 psi | 75% | 2910 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,090 psi | 67% | 2808 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 42,438 psi | 68% | 2835 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,580 psi | 62% | 2789 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,834 psi | 77% | 2923 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,934 psi | 74% | 2900 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,442 psi | 76% | 2828 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,610 psi | 64% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,280 psi | 71% | 2805 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 47,050 psi | 75% | 2825 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,718 psi | 77% | 2917 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 38,000 psi | 61% | 2740 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 27,688 psi | 44% | 2552 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 47,645 psi | 76% | 2966 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 47,906 psi | 77% | 2818 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,656 psi | 70% | 2805 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,367 psi | 71% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,347 psi | 58% | 2674 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 34,737 psi | 56% | 2680 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 49,661 psi | 80% | 2940 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,786 psi | 69% | 2805 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,463 psi | 58% | 2733 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 33,257 psi | 53% | 2720 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,082 psi | 51% | 2589 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 49,806 psi | 80% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,671 psi | 70% | 2917 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,850 psi | 49% | 2726 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,672 psi | 73% | 2907 fps | 99.6% |
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 93 powders for .300 Win. Mag. loaded with the .308 | 150gr | Sako Powerhead Blade. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,909 fps to 3,173 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 Win. Mag. with the .308 | 150gr | Sako Powerhead Blade 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.