Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 180gr | Norma Bondstrike bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Accurate High Country.
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 2495 | <<locked>> | 82% | 55,579 psi | 89% | 2730 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 53,171 psi | 85% | 2749 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,766 psi | 88% | 2848 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 55,941 psi | 90% | 2785 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,098 psi | 85% | 2841 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 55,825 psi | 90% | 2989 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 86% | 56,028 psi | 90% | 2818 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,114 psi | 87% | 2884 fps | 98.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,245 psi | 89% | 2933 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,332 psi | 89% | 2940 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,273 psi | 87% | 2881 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,461 psi | 86% | 2792 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 53,548 psi | 86% | 2812 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,896 psi | 86% | 2897 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,172 psi | 88% | 2920 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 53,534 psi | 86% | 2874 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,186 psi | 87% | 2930 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 2864 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,715 psi | 72% | 2792 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,984 psi | 88% | 2999 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,835 psi | 80% | 2854 fps | 97.4% |
| Bofors RP3 | <<locked>> | 84% | 54,099 psi | 87% | 2805 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,186 psi | 87% | 2930 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 53,621 psi | 86% | 2792 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 54,534 psi | 87% | 2822 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,259 psi | 89% | 2894 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 55,143 psi | 88% | 2854 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 98% | 55,405 psi | 89% | 2877 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 54,375 psi | 87% | 2861 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,273 psi | 87% | 2825 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,869 psi | 90% | 2858 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,569 psi | 70% | 2815 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 90% | 55,492 psi | 89% | 2930 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 58% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,333 psi | 90% | 2822 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,521 psi | 89% | 2802 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,563 psi | 87% | 2782 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 54,520 psi | 87% | 2825 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,201 psi | 89% | 2818 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 53,577 psi | 86% | 2835 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,911 psi | 88% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,679 psi | 86% | 2815 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,823 psi | 85% | 2907 fps | 96.8% |
| Lovex S062 | <<locked>> | 84% | 55,666 psi | 89% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,303 psi | 89% | 2818 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 53,185 psi | 85% | 2805 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,397 psi | 73% | 2700 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 56,434 psi | 90% | 2851 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,143 psi | 88% | 2877 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 53,867 psi | 86% | 2956 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 55,347 psi | 89% | 2877 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,505 psi | 86% | 2822 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,200 psi | 85% | 2923 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 92% | 54,143 psi | 87% | 2881 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,442 psi | 76% | 2795 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,173 psi | 60% | 1801 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,375 psi | 87% | 2808 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,694 psi | 88% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 52,881 psi | 85% | 2864 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,129 psi | 88% | 2946 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,642 psi | 70% | 2812 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,317 psi | 87% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,186 psi | 87% | 2802 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,854 psi | 90% | 2858 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 98% | 56,333 psi | 90% | 2913 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 53,621 psi | 86% | 2792 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,303 psi | 89% | 2818 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 55,666 psi | 89% | 2792 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,185 psi | 85% | 2805 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,695 psi | 89% | 2861 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,187 psi | 88% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,810 psi | 88% | 2769 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,840 psi | 90% | 2910 fps | 98.6% |
| Somchem S355 | <<locked>> | 86% | 54,331 psi | 87% | 2802 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,838 psi | 86% | 2792 fps | 96.2% |
| Somchem S365 | <<locked>> | 94% | 54,665 psi | 88% | 2881 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 53,330 psi | 86% | 2835 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 54,650 psi | 88% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,897 psi | 88% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,564 psi | 89% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,969 psi | 87% | 2822 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,707 psi | 85% | 2812 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 52,953 psi | 85% | 2726 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,055 psi | 85% | 2825 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 53,766 psi | 86% | 2887 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,186 psi | 87% | 2946 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,519 psi | 86% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,521 psi | 89% | 2897 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,369 psi | 74% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,258 psi | 85% | 2825 fps | 97.9% |
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 2495 | <<locked>> | 80% | 52,156 psi | 84% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,821 psi | 80% | 2694 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 33,982 psi | 54% | 2461 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 49,443 psi | 79% | 2690 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,811 psi | 61% | 2562 fps | 98.4% |
| Accurate High Country | 69.6 gr | 92% | 45,339 psi | 73% | 2805 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 46,630 psi | 75% | 2667 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,684 psi | 67% | 2654 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 96% | 48,399 psi | 78% | 2812 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,445 psi | 82% | 2877 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,887 psi | 67% | 2657 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,079 psi | 75% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,343 psi | 81% | 2759 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,666 psi | 59% | 2569 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,655 psi | 67% | 2694 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,423 psi | 66% | 2648 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,611 psi | 67% | 2697 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,963 psi | 43% | 2329 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,561 psi | 52% | 2500 fps | 95.4% |
| Alliant Reloder-26 | 63.9 gr | 82% | 30,821 psi | 49% | 2497 fps | 95.6% |
| Bofors RP15 | <<locked>> | 94% | 41,046 psi | 66% | 2684 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 47,471 psi | 76% | 2703 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,611 psi | 67% | 2697 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 41,756 psi | 67% | 2579 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 80% | 47,747 psi | 77% | 2713 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 39,697 psi | 64% | 2608 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 80% | 42,612 psi | 68% | 2628 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 96% | 51,953 psi | 83% | 2822 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,763 psi | 81% | 2802 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,330 psi | 55% | 2467 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,025 psi | 83% | 2802 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,973 psi | 66% | 2753 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 38,624 psi | 62% | 2615 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 44% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,982 psi | 85% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,052 psi | 79% | 2700 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,126 psi | 82% | 2730 fps | 98.8% |
| IMR 4350 | <<locked>> | 80% | 37,333 psi | 60% | 2503 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,178 psi | 69% | 2608 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 36,303 psi | 58% | 2516 fps | 98.1% |
| IMR 4895 | <<locked>> | 80% | 51,663 psi | 83% | 2789 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,314 psi | 81% | 2756 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 46,253 psi | 74% | 2785 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 49,240 psi | 79% | 2697 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,698 psi | 65% | 2556 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 38,841 psi | 62% | 2536 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 33,025 psi | 53% | 2438 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 49,719 psi | 80% | 2746 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,032 psi | 67% | 2641 fps | 95.1% |
| Norma MRP | 66.5 gr | 88% | 38,043 psi | 61% | 2648 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 37,449 psi | 60% | 2552 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 49,864 psi | 80% | 2766 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,093 psi | 74% | 2792 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 36,405 psi | 58% | 2543 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 96% | 40,944 psi | 66% | 2667 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 45% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,790 psi | 77% | 2697 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,237 psi | 71% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,405 psi | 60% | 2579 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,274 psi | 58% | 2582 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,811 psi | 61% | 2671 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,082 psi | 82% | 2710 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,643 psi | 72% | 2648 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,137 psi | 74% | 2690 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 40,466 psi | 65% | 2631 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 41,756 psi | 67% | 2579 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,698 psi | 65% | 2556 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 49,240 psi | 79% | 2697 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,841 psi | 62% | 2536 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,905 psi | 74% | 2703 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,919 psi | 74% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,813 psi | 64% | 2503 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,757 psi | 69% | 2680 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 44,962 psi | 72% | 2648 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,473 psi | 81% | 2736 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 33,910 psi | 54% | 2513 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 38,522 psi | 62% | 2559 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 51,285 psi | 82% | 2671 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,401 psi | 82% | 2684 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,873 psi | 69% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,972 psi | 62% | 2556 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 40,480 psi | 65% | 2592 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 49,661 psi | 80% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,319 psi | 61% | 2556 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 29,689 psi | 48% | 2402 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 96% | 50,676 psi | 81% | 2884 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,043 psi | 61% | 2526 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 39,697 psi | 64% | 2608 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,353 psi | 41% | 2352 fps | 95.9% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,337 psi | 69% | 2654 fps | 95.7% |
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 90 powders for .300 Win. Mag. loaded with the .308 | 180gr | Norma Bondstrike. Alliant Reloder-26 delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,999 fps. Accurate 3100 gives the best case fill at 100 %, and 90 of the 90 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 180.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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. Alliant Reloder-26, Norma MRP, Accurate High Country rank at the top here: for .300 Win. Mag. with the .308 | 180gr | Norma Bondstrike 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.