Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 190gr | Nosler AccuBond Long Range 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-17, Alliant Reloder-26 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.
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 2700 | <<locked>> | 82% | 54,186 psi | 87% | 2690 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2792 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 53,766 psi | 86% | 2674 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,360 psi | 87% | 2782 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 53,287 psi | 85% | 2874 fps | 97.7% |
| Accurate MAGPRO | <<locked>> | 98% | 54,302 psi | 87% | 2877 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 53,577 psi | 86% | 2707 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,245 psi | 89% | 2828 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 52,765 psi | 85% | 2822 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,434 psi | 90% | 2877 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,390 psi | 89% | 2825 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,491 psi | 87% | 2730 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,505 psi | 87% | 2746 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,042 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,289 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,708 psi | 88% | 2818 fps | 98.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,637 psi | 89% | 2877 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,678 psi | 84% | 2805 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,600 psi | 73% | 2740 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,533 psi | 84% | 2887 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,836 psi | 82% | 2799 fps | 98.1% |
| Bofors RP3 | <<locked>> | 84% | 55,274 psi | 89% | 2743 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,637 psi | 89% | 2877 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 54,491 psi | 87% | 2733 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,310 psi | 73% | 2677 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,680 psi | 89% | 2766 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,823 psi | 85% | 2779 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 56,188 psi | 90% | 2795 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 53,113 psi | 85% | 2769 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,405 psi | 89% | 2805 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,535 psi | 89% | 2762 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,730 psi | 72% | 2776 fps | 97.6% |
| Hodgdon Superformance | <<locked>> | 88% | 52,765 psi | 85% | 2815 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 59% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,391 psi | 90% | 2736 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,419 psi | 89% | 2723 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 55,637 psi | 89% | 2769 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,057 psi | 90% | 2759 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 54,766 psi | 88% | 2776 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,927 psi | 90% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,621 psi | 88% | 2759 fps | 97.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,911 psi | 86% | 2854 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 53,447 psi | 86% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,260 psi | 90% | 2756 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 54,230 psi | 87% | 2746 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,673 psi | 75% | 2651 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 53,795 psi | 86% | 2733 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,721 psi | 85% | 2766 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 55,158 psi | 88% | 2900 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 53,055 psi | 85% | 2766 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,534 psi | 87% | 2759 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,491 psi | 87% | 2871 fps | 98% |
| Ramshot Hunter | <<locked>> | 92% | 55,477 psi | 89% | 2825 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,457 psi | 78% | 2746 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,376 psi | 60% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,506 psi | 89% | 2749 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,985 psi | 90% | 2848 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,273 psi | 87% | 2808 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,376 psi | 90% | 2887 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,643 psi | 72% | 2769 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 55,317 psi | 89% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,376 psi | 89% | 2740 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,388 psi | 86% | 2746 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 96% | 53,737 psi | 86% | 2802 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 54,491 psi | 87% | 2733 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,260 psi | 90% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 53,447 psi | 86% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,230 psi | 87% | 2746 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,345 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,289 psi | 90% | 2628 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,057 psi | 90% | 2713 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,272 psi | 85% | 2795 fps | 98.5% |
| Somchem S355 | <<locked>> | 86% | 55,390 psi | 89% | 2736 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,998 psi | 88% | 2740 fps | 96.9% |
| Somchem S365 | <<locked>> | 94% | 56,159 psi | 90% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,520 psi | 87% | 2779 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 82% | 55,724 psi | 89% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,782 psi | 89% | 2667 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 53,026 psi | 85% | 2664 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,085 psi | 88% | 2762 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,766 psi | 86% | 2756 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 53,940 psi | 86% | 2664 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,244 psi | 87% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,042 psi | 88% | 2828 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,434 psi | 89% | 2894 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,311 psi | 76% | 2743 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,636 psi | 88% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,084 psi | 85% | 2782 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,790 psi | 77% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,621 psi | 88% | 2776 fps | 98.5% |
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 2700 | <<locked>> | 80% | 50,705 psi | 81% | 2638 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 32,648 psi | 52% | 2369 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 50,459 psi | 81% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,653 psi | 62% | 2513 fps | 98.9% |
| Accurate High Country | 66.6 gr | 90% | 43,352 psi | 70% | 2697 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 96% | 50,618 psi | 81% | 2815 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 47,500 psi | 76% | 2608 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,827 psi | 64% | 2546 fps | 95% |
| ADI AR 2213 | <<locked>> | 94% | 46,311 psi | 74% | 2703 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,605 psi | 84% | 2818 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 40,089 psi | 64% | 2549 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,022 psi | 77% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,213 psi | 82% | 2697 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,492 psi | 60% | 2523 fps | 99% |
| Alliant Reloder-17 | 59.5 gr | 80% | 42,641 psi | 68% | 2641 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,668 psi | 64% | 2546 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,827 psi | 64% | 2592 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,630 psi | 44% | 2290 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,299 psi | 50% | 2408 fps | 95.5% |
| Alliant Reloder-26 | 61 gr | 80% | 29,457 psi | 47% | 2398 fps | 95.6% |
| Bofors RP15 | <<locked>> | 92% | 39,305 psi | 63% | 2579 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 48,370 psi | 78% | 2641 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,827 psi | 64% | 2592 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 42,583 psi | 68% | 2526 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 98% | 42,438 psi | 68% | 2621 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 48,834 psi | 78% | 2657 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 40,538 psi | 65% | 2559 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,366 psi | 70% | 2575 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 94% | 49,501 psi | 79% | 2710 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,617 psi | 78% | 2694 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,186 psi | 56% | 2418 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,218 psi | 63% | 2648 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 39,479 psi | 63% | 2569 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 44% | 1522 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,951 psi | 80% | 2641 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,141 psi | 84% | 2671 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 38,145 psi | 61% | 2454 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,830 psi | 70% | 2552 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 37,231 psi | 60% | 2467 fps | 98.7% |
| IMR 4895 | <<locked>> | 80% | 52,547 psi | 84% | 2723 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,312 psi | 77% | 2651 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 94% | 44,106 psi | 71% | 2674 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 50,198 psi | 80% | 2638 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,481 psi | 67% | 2507 fps | 98.5% |
| Lovex S070 | <<locked>> | 80% | 39,711 psi | 64% | 2490 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 31,720 psi | 51% | 2346 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 50,575 psi | 81% | 2684 fps | 100% |
| Norma 204 | <<locked>> | 82% | 40,161 psi | 64% | 2536 fps | 95.1% |
| Norma MRP | <<locked>> | 86% | 36,419 psi | 58% | 2546 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,377 psi | 62% | 2507 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 50,966 psi | 82% | 2707 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 44,005 psi | 71% | 2684 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 37,246 psi | 60% | 2497 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 94% | 38,972 psi | 62% | 2562 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 45% | 1558 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,675 psi | 78% | 2641 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,266 psi | 73% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,348 psi | 61% | 2530 fps | 98.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,144 psi | 60% | 2539 fps | 98.2% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,143 psi | 58% | 2572 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,996 psi | 83% | 2644 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,643 psi | 73% | 2592 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,135 psi | 71% | 2585 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 86% | 38,696 psi | 62% | 2526 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,583 psi | 68% | 2526 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,481 psi | 67% | 2507 fps | 98.5% |
| Shooters World Precision | <<locked>> | 80% | 50,198 psi | 80% | 2638 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,711 psi | 64% | 2490 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,818 psi | 75% | 2648 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,673 psi | 75% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,495 psi | 65% | 2451 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,959 psi | 66% | 2575 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 45,905 psi | 74% | 2592 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,225 psi | 77% | 2631 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 34,853 psi | 56% | 2467 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,869 psi | 59% | 2457 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 52,257 psi | 84% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,388 psi | 84% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,830 psi | 70% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,740 psi | 64% | 2503 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 38,682 psi | 62% | 2490 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,734 psi | 81% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,305 psi | 63% | 2507 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 30,516 psi | 49% | 2362 fps | 97.3% |
| Vihtavuori N560 | <<locked>> | 92% | 45,295 psi | 73% | 2713 fps | 95% |
| Vihtavuori N565 | <<locked>> | 98% | 44,280 psi | 71% | 2687 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,740 psi | 62% | 2474 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,741 psi | 65% | 2562 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,410 psi | 39% | 2264 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,423 psi | 66% | 2552 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 | 190gr | Nosler AccuBond Long Range. Norma MRP delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,900 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 59–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. Alliant Reloder-17, Alliant Reloder-26, Accurate High Country rank at the top here: for .300 Win. Mag. with the .308 | 190gr | Nosler AccuBond Long Range 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.