Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 200gr | Nosler AccuBond bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H4831, Norma MRP and Vihtavuori N560.
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 2700 | <<locked>> | 82% | 55,796 psi | 89% | 2651 fps | 99.5% |
| Accurate 3100 | <<locked>> | 98% | 54,331 psi | 87% | 2700 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 55,521 psi | 89% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,866 psi | 85% | 2690 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 55,738 psi | 89% | 2844 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 96% | 52,736 psi | 85% | 2785 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 55,085 psi | 88% | 2657 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,461 psi | 86% | 2736 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 98% | 54,839 psi | 88% | 2792 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,753 psi | 61% | 2526 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,766 psi | 86% | 2733 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,173 psi | 90% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,420 psi | 90% | 2703 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,519 psi | 86% | 2743 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,621 psi | 88% | 2759 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,069 psi | 85% | 2726 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,201 psi | 87% | 2785 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,824 psi | 88% | 2762 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,369 psi | 76% | 2707 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,085 psi | 88% | 2851 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,113 psi | 85% | 2769 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 53,577 psi | 86% | 2648 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,279 psi | 69% | 2635 fps | 96.3% |
| Bofors RP5 | <<locked>> | 98% | 54,201 psi | 87% | 2785 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 56,130 psi | 90% | 2690 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,949 psi | 75% | 2654 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 53,722 psi | 86% | 2667 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,781 psi | 88% | 2740 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 54,273 psi | 87% | 2700 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 96% | 54,955 psi | 88% | 2733 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,940 psi | 86% | 2720 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,969 psi | 87% | 2671 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,456 psi | 74% | 2749 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 88% | 54,810 psi | 88% | 2776 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,651 psi | 59% | 1660 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,752 psi | 88% | 2644 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,809 psi | 86% | 2677 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,288 psi | 87% | 2664 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 53,345 psi | 86% | 2684 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,289 psi | 90% | 2720 fps | 97.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2818 fps | 98.4% |
| Lovex S062 | <<locked>> | 82% | 54,998 psi | 88% | 2635 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,578 psi | 88% | 2661 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 56,043 psi | 90% | 2707 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2615 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 55,709 psi | 89% | 2690 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,723 psi | 88% | 2730 fps | 98.8% |
| Norma MRP | <<locked>> | 96% | 53,853 psi | 86% | 2812 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 55,027 psi | 88% | 2726 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,362 psi | 90% | 2713 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,649 psi | 84% | 2779 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 53,838 psi | 86% | 2730 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,531 psi | 81% | 2720 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 60% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,606 psi | 86% | 2654 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,302 psi | 87% | 2753 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,260 psi | 90% | 2762 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,534 psi | 87% | 2792 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,528 psi | 75% | 2749 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 53,693 psi | 86% | 2648 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,245 psi | 89% | 2710 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 96% | 55,912 psi | 90% | 2766 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 56,130 psi | 90% | 2690 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,578 psi | 88% | 2661 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,998 psi | 88% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,043 psi | 90% | 2707 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,143 psi | 88% | 2703 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,244 psi | 87% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,056 psi | 87% | 2618 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,434 psi | 89% | 2762 fps | 99.2% |
| Somchem S355 | <<locked>> | 84% | 53,693 psi | 86% | 2644 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,142 psi | 85% | 2648 fps | 97.1% |
| Somchem S365 | <<locked>> | 92% | 54,549 psi | 87% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,910 psi | 85% | 2690 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 54,723 psi | 88% | 2618 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,563 psi | 86% | 2671 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,738 psi | 89% | 2720 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 55,550 psi | 89% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,202 psi | 90% | 2726 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,882 psi | 86% | 2740 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,983 psi | 87% | 2802 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,356 psi | 79% | 2717 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,837 psi | 85% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,013 psi | 88% | 2746 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,589 psi | 81% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,924 psi | 85% | 2687 fps | 98.7% |
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% | 52,185 psi | 84% | 2598 fps | 99.1% |
| Accurate 3100 | <<locked>> | 80% | 29,646 psi | 48% | 2234 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 52,127 psi | 84% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,161 psi | 64% | 2480 fps | 99.5% |
| Accurate High Country | <<locked>> | 88% | 42,221 psi | 68% | 2608 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 92% | 45,818 psi | 73% | 2664 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 48,834 psi | 78% | 2566 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,624 psi | 62% | 2464 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 92% | 44,889 psi | 72% | 2618 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 96% | 33,330 psi | 53% | 2411 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,957 psi | 62% | 2467 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,530 psi | 79% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,736 psi | 85% | 2651 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,957 psi | 62% | 2490 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,324 psi | 71% | 2605 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,580 psi | 62% | 2461 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,899 psi | 62% | 2513 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,660 psi | 46% | 2267 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,414 psi | 49% | 2329 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,748 psi | 49% | 2379 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 38,377 psi | 62% | 2500 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 50,241 psi | 81% | 2602 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,567 psi | 65% | 2579 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 38,899 psi | 62% | 2513 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 43,845 psi | 70% | 2487 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 41,162 psi | 66% | 2539 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 50,401 psi | 81% | 2618 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,047 psi | 67% | 2526 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 80% | 44,962 psi | 72% | 2543 fps | 97.6% |
| Hodgdon H4831 | 64.5 gr | 90% | 44,933 psi | 72% | 2569 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,079 psi | 75% | 2605 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,521 psi | 59% | 2385 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,377 psi | 62% | 2572 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 40,973 psi | 66% | 2543 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 44% | 1483 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,358 psi | 82% | 2595 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,392 psi | 63% | 2421 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,266 psi | 73% | 2516 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 38,580 psi | 62% | 2434 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,903 psi | 70% | 2513 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 42,975 psi | 69% | 2592 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 51,663 psi | 83% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,757 psi | 69% | 2467 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 40,973 psi | 66% | 2454 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 31,111 psi | 50% | 2270 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 52,098 psi | 84% | 2638 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,986 psi | 63% | 2451 fps | 95.4% |
| Norma MRP | 60.3 gr | 82% | 33,170 psi | 53% | 2408 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 39,755 psi | 64% | 2470 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 80% | 52,721 psi | 85% | 2664 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 42,728 psi | 69% | 2602 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 38,653 psi | 62% | 2464 fps | 98% |
| Ramshot Magnum | <<locked>> | 90% | 35,317 psi | 57% | 2425 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 45% | 1522 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,154 psi | 80% | 2602 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,036 psi | 75% | 2648 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,914 psi | 64% | 2497 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,508 psi | 62% | 2507 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,143 psi | 56% | 2490 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 47,181 psi | 76% | 2552 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,830 psi | 69% | 2500 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 37,666 psi | 60% | 2444 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 43,845 psi | 70% | 2487 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,757 psi | 69% | 2467 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 51,663 psi | 83% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,973 psi | 66% | 2454 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,399 psi | 78% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,153 psi | 77% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,945 psi | 67% | 2418 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,318 psi | 60% | 2438 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 47,340 psi | 76% | 2549 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,630 psi | 75% | 2543 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 36,347 psi | 58% | 2431 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,911 psi | 58% | 2379 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 45,194 psi | 72% | 2480 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,147 psi | 66% | 2467 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 35,331 psi | 57% | 2359 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 52,214 psi | 84% | 2572 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,683 psi | 65% | 2474 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 31,850 psi | 51% | 2336 fps | 98.2% |
| Vihtavuori N560 | 66.1 gr | 90% | 43,859 psi | 70% | 2625 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 96% | 43,294 psi | 69% | 2605 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,118 psi | 64% | 2438 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,235 psi | 68% | 2530 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,396 psi | 41% | 2257 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 37,550 psi | 60% | 2415 fps | 95.1% |
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 86 powders for .300 Win. Mag. loaded with the .308 | 200gr | Nosler AccuBond. Alliant Reloder-26 delivers the highest muzzle velocity at 2,851 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,851 fps. ADI AR 2225 gives the best case fill at 100 %, and 86 of the 86 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 200.0 gr projectile in 0.308" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-23, Alliant Reloder-25 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. Hodgdon H4831, Norma MRP, Vihtavuori N560 rank at the top here: for .300 Win. Mag. with the .308 | 200gr | Nosler AccuBond 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.