Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 175gr | Lapua ScenarL bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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 2495 | <<locked>> | 82% | 54,650 psi | 88% | 2756 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,825 psi | 90% | 2825 fps | 98.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2867 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 54,940 psi | 88% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,767 psi | 89% | 2920 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,347 psi | 89% | 3002 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 55,143 psi | 88% | 2844 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,055 psi | 85% | 2900 fps | 97.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,346 psi | 87% | 2953 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,259 psi | 87% | 2963 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,171 psi | 85% | 2900 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,869 psi | 90% | 2867 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,970 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,260 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,969 psi | 87% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,825 psi | 90% | 2946 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,171 psi | 85% | 2946 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,111 psi | 80% | 2884 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,714 psi | 70% | 2805 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,737 psi | 86% | 3022 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,689 psi | 78% | 2867 fps | 96.9% |
| Bofors RP3 | <<locked>> | 84% | 53,142 psi | 85% | 2831 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,171 psi | 85% | 2946 fps | 97.9% |
| Bofors RP7 | <<locked>> | 90% | 56,101 psi | 90% | 2867 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 84% | 53,577 psi | 86% | 2844 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,186 psi | 87% | 2913 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 88% | 53,954 psi | 87% | 2871 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 98% | 54,520 psi | 87% | 2897 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,171 psi | 85% | 2844 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,563 psi | 87% | 2881 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,215 psi | 87% | 2946 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 58% | 1781 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,492 psi | 89% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,418 psi | 87% | 2825 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,737 psi | 86% | 2805 fps | 98.9% |
| IMR 4350 | <<locked>> | 92% | 53,563 psi | 86% | 2848 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,331 psi | 87% | 2841 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 56,101 psi | 90% | 2910 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,041 psi | 87% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,999 psi | 90% | 2884 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,677 psi | 83% | 2920 fps | 96.2% |
| Lovex S060 | <<locked>> | 82% | 56,130 psi | 90% | 2812 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,795 psi | 88% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,389 psi | 87% | 2841 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 55,521 psi | 89% | 2877 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,338 psi | 71% | 2713 fps | 98.2% |
| Norma 201 | <<locked>> | 82% | 56,086 psi | 90% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,259 psi | 89% | 2874 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,085 psi | 87% | 2897 fps | 97.7% |
| Norma MRPᴾ | <<locked>> | 100% | 56,376 psi | 90% | 3035 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 54,259 psi | 87% | 2900 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,072 psi | 90% | 2900 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,953 psi | 83% | 2933 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 92% | 53,040 psi | 85% | 2900 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2805 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,130 psi | 60% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,490 psi | 86% | 2828 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,534 psi | 86% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,593 psi | 89% | 2940 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,940 psi | 86% | 2966 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,627 psi | 68% | 2822 fps | 97% |
| Rottweil R 902 | <<locked>> | 82% | 53,476 psi | 86% | 2782 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,229 psi | 85% | 2828 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,810 psi | 88% | 2874 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 98% | 55,187 psi | 88% | 2933 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 56,101 psi | 90% | 2867 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,389 psi | 87% | 2841 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,795 psi | 88% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,521 psi | 89% | 2877 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,694 psi | 88% | 2887 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,709 psi | 89% | 2858 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,331 psi | 87% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,911 psi | 86% | 2789 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,694 psi | 88% | 2930 fps | 98.1% |
| Somchem S355 | <<locked>> | 86% | 53,185 psi | 85% | 2822 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 53,403 psi | 86% | 2904 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,811 psi | 89% | 2907 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 53,548 psi | 86% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,766 psi | 86% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,636 psi | 88% | 2799 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,939 psi | 85% | 2844 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,532 psi | 83% | 2828 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 55,608 psi | 89% | 2802 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,550 psi | 89% | 2900 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2959 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,968 psi | 85% | 2959 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,057 psi | 90% | 2864 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,433 psi | 87% | 2917 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,194 psi | 72% | 2936 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,898 psi | 90% | 2867 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,956 psi | 90% | 2904 fps | 98.1% |
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 2495 | <<locked>> | 80% | 51,285 psi | 82% | 2710 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,023 psi | 79% | 2713 fps | 97.6% |
| Accurate 3100 | <<locked>> | 88% | 35,433 psi | 57% | 2530 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 48,573 psi | 78% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,811 psi | 59% | 2575 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 98% | 51,648 psi | 83% | 2940 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 45,730 psi | 73% | 2687 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 43,540 psi | 70% | 2723 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 98% | 50,778 psi | 81% | 2890 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,415 psi | 81% | 2900 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,700 psi | 70% | 2726 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,267 psi | 74% | 2713 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,313 psi | 79% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,984 psi | 58% | 2585 fps | 98% |
| Alliant Reloder-17 | 61 gr | 80% | 40,770 psi | 65% | 2713 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,192 psi | 69% | 2717 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,352 psi | 70% | 2769 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,426 psi | 42% | 2339 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,924 psi | 54% | 2569 fps | 95.6% |
| Alliant Reloder-26 | 65.6 gr | 84% | 32,227 psi | 52% | 2569 fps | 95.9% |
| Bofors RP15 | <<locked>> | 96% | 42,743 psi | 69% | 2753 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 46,630 psi | 75% | 2726 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,352 psi | 70% | 2769 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 41,104 psi | 66% | 2595 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 46,949 psi | 75% | 2736 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,943 psi | 62% | 2625 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 80% | 41,858 psi | 67% | 2648 fps | 95.3% |
| Hodgdon H4831 | <<locked>> | 96% | 50,894 psi | 82% | 2838 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,489 psi | 54% | 2480 fps | 98.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,111 psi | 82% | 2828 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 40,654 psi | 65% | 2694 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 44% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,953 psi | 83% | 2792 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,080 psi | 77% | 2720 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,386 psi | 81% | 2749 fps | 98.5% |
| IMR 4350 | <<locked>> | 82% | 39,189 psi | 63% | 2575 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,337 psi | 68% | 2625 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 35,578 psi | 57% | 2533 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 50,604 psi | 81% | 2808 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,414 psi | 79% | 2772 fps | 95% |
| IMR 7828 SSC | <<locked>> | 98% | 48,283 psi | 77% | 2858 fps | 95.2% |
| Lovex S060 | <<locked>> | 80% | 52,852 psi | 85% | 2762 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,472 psi | 78% | 2720 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,016 psi | 64% | 2575 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 38,189 psi | 61% | 2556 fps | 95.8% |
| Lovex S071 | <<locked>> | 92% | 34,272 psi | 55% | 2500 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 52,750 psi | 85% | 2782 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,689 psi | 78% | 2766 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,106 psi | 71% | 2717 fps | 95.4% |
| Norma MRP | <<locked>> | 88% | 37,202 psi | 60% | 2661 fps | 95% |
| Norma URP | <<locked>> | 80% | 36,724 psi | 59% | 2572 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 80% | 48,965 psi | 79% | 2789 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,356 psi | 78% | 2867 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 35,520 psi | 57% | 2552 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 96% | 40,001 psi | 64% | 2677 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,731 psi | 44% | 1631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,978 psi | 75% | 2717 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,337 psi | 69% | 2769 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,550 psi | 59% | 2592 fps | 97.5% |
| ReloadSwiss RS 70 | 61.9 gr | 80% | 35,592 psi | 57% | 2595 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,639 psi | 64% | 2749 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 50,111 psi | 80% | 2730 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,830 psi | 70% | 2671 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,196 psi | 77% | 2759 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 42,250 psi | 68% | 2703 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 41,104 psi | 66% | 2595 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,016 psi | 64% | 2575 fps | 97.5% |
| Shooters World Precision | <<locked>> | 80% | 48,472 psi | 78% | 2720 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,189 psi | 61% | 2556 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,875 psi | 72% | 2723 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,257 psi | 84% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,237 psi | 73% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,160 psi | 63% | 2520 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,858 psi | 67% | 2694 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 44,222 psi | 71% | 2671 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 33,156 psi | 53% | 2530 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 40,132 psi | 64% | 2628 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 50,488 psi | 81% | 2697 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,589 psi | 81% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,134 psi | 68% | 2602 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,043 psi | 61% | 2569 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 94% | 42,177 psi | 68% | 2661 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 48,892 psi | 78% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,594 psi | 60% | 2572 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,979 psi | 46% | 2415 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 96% | 49,530 psi | 79% | 2897 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,362 psi | 60% | 2546 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,943 psi | 62% | 2625 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,498 psi | 42% | 2425 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,373 psi | 84% | 2815 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,424 psi | 68% | 2671 fps | 95% |
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 91 powders for .300 Win. Mag. loaded with the .308 | 175gr | Lapua ScenarL. Norma MRP delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,781 fps to 3,035 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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, Alliant Reloder-26, Alliant Reloder-17 rank at the top here: for .300 Win. Mag. with the .308 | 175gr | Lapua ScenarL 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.