Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 205gr | Berger Elite Hunter bullet and 83 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 MAGPRO.
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 3100 | <<locked>> | 98% | 55,347 psi | 89% | 2684 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,231 psi | 90% | 2602 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,708 psi | 86% | 2671 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 52,953 psi | 85% | 2769 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 96% | 53,824 psi | 86% | 2769 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 84% | 55,956 psi | 90% | 2638 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,302 psi | 87% | 2717 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 55,782 psi | 89% | 2772 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,406 psi | 62% | 2513 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,607 psi | 88% | 2713 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,650 psi | 86% | 2612 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,592 psi | 88% | 2723 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,521 psi | 89% | 2736 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,911 psi | 86% | 2707 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,158 psi | 88% | 2769 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2743 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2690 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 56,318 psi | 90% | 2831 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,056 psi | 87% | 2749 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 54,288 psi | 87% | 2625 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,193 psi | 71% | 2621 fps | 96.9% |
| Bofors RP5 | <<locked>> | 98% | 55,158 psi | 88% | 2769 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 53,606 psi | 86% | 2621 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,776 psi | 77% | 2638 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 82% | 54,389 psi | 87% | 2641 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,622 psi | 89% | 2720 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 55,274 psi | 89% | 2684 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 96% | 55,883 psi | 90% | 2717 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,563 psi | 87% | 2697 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,853 psi | 88% | 2648 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,355 psi | 76% | 2740 fps | 99% |
| Hodgdon Superformance | <<locked>> | 88% | 55,811 psi | 89% | 2759 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 59% | 1640 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,347 psi | 89% | 2618 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,766 psi | 88% | 2657 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,129 psi | 88% | 2644 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 54,143 psi | 87% | 2661 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,650 psi | 86% | 2648 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 98% | 53,214 psi | 85% | 2746 fps | 98.2% |
| Lovex S062 | <<locked>> | 82% | 55,622 psi | 89% | 2608 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,521 psi | 89% | 2641 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,359 psi | 86% | 2635 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,327 psi | 79% | 2595 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 56,391 psi | 90% | 2664 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,550 psi | 89% | 2710 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 54,679 psi | 88% | 2789 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 55,825 psi | 90% | 2703 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,635 psi | 86% | 2766 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 54,737 psi | 88% | 2710 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,576 psi | 83% | 2703 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,565 psi | 60% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,244 psi | 87% | 2631 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,187 psi | 88% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,635 psi | 86% | 2694 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,477 psi | 89% | 2769 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,239 psi | 76% | 2733 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 54,650 psi | 88% | 2628 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,043 psi | 90% | 2690 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 53,214 psi | 85% | 2694 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 53,606 psi | 86% | 2621 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,521 psi | 89% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,622 psi | 89% | 2608 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,359 psi | 86% | 2635 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,898 psi | 90% | 2680 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,056 psi | 88% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,752 psi | 88% | 2598 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,391 psi | 90% | 2743 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 54,360 psi | 87% | 2618 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,954 psi | 87% | 2631 fps | 97.5% |
| Somchem S365 | <<locked>> | 92% | 55,782 psi | 89% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,780 psi | 86% | 2671 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 86% | 55,448 psi | 89% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,317 psi | 87% | 2648 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,142 psi | 85% | 2648 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 56,159 psi | 90% | 2589 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 53,359 psi | 86% | 2654 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,853 psi | 88% | 2720 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,752 psi | 88% | 2782 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,386 psi | 81% | 2700 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,621 psi | 86% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,825 psi | 90% | 2723 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,953 psi | 83% | 2815 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,577 psi | 86% | 2664 fps | 98.9% |
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 3100 | <<locked>> | 80% | 30,298 psi | 49% | 2224 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 52,997 psi | 85% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,988 psi | 66% | 2464 fps | 99.7% |
| Accurate High Country | <<locked>> | 86% | 40,074 psi | 64% | 2536 fps | 95.1% |
| Accurate MAGPRO | 68.6 gr | 92% | 46,731 psi | 75% | 2651 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 49,342 psi | 79% | 2539 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 36,869 psi | 59% | 2395 fps | 95% |
| ADI AR 2213 | <<locked>> | 90% | 42,714 psi | 68% | 2546 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 96% | 33,910 psi | 54% | 2405 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,072 psi | 59% | 2398 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,343 psi | 81% | 2566 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,450 psi | 63% | 2470 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,020 psi | 72% | 2582 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,738 psi | 59% | 2392 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,072 psi | 59% | 2441 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,225 psi | 47% | 2254 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 29,124 psi | 47% | 2264 fps | 95.5% |
| Alliant Reloder-26 | 60.3 gr | 80% | 31,314 psi | 50% | 2365 fps | 97.5% |
| Bofors RP15 | <<locked>> | 88% | 36,593 psi | 59% | 2428 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,865 psi | 82% | 2579 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 38,711 psi | 62% | 2510 fps | 95.1% |
| Bofors RP5 | <<locked>> | 86% | 37,072 psi | 59% | 2441 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 44,527 psi | 71% | 2470 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 39,204 psi | 63% | 2470 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 51,039 psi | 82% | 2595 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,844 psi | 69% | 2510 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 45,542 psi | 73% | 2523 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 90% | 45,629 psi | 73% | 2552 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,817 psi | 72% | 2536 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,231 psi | 60% | 2369 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,666 psi | 59% | 2503 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 41,669 psi | 67% | 2523 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,528 psi | 44% | 1463 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,924 psi | 83% | 2569 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,045 psi | 64% | 2405 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,774 psi | 73% | 2493 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 39,160 psi | 63% | 2415 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,686 psi | 72% | 2497 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 90% | 40,915 psi | 66% | 2520 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 52,475 psi | 84% | 2566 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,453 psi | 70% | 2451 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 41,713 psi | 67% | 2438 fps | 98.3% |
| Lovex S071 | <<locked>> | 84% | 29,718 psi | 48% | 2211 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 52,953 psi | 85% | 2618 fps | 100% |
| Norma 204 | <<locked>> | 80% | 39,537 psi | 63% | 2434 fps | 95.8% |
| Norma MRP | 60 gr | 82% | 33,750 psi | 54% | 2395 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 40,495 psi | 65% | 2457 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 40,480 psi | 65% | 2526 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 39,218 psi | 63% | 2448 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 90% | 35,955 psi | 58% | 2415 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,166 psi | 45% | 1503 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,749 psi | 81% | 2579 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,790 psi | 77% | 2625 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,770 psi | 65% | 2484 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,088 psi | 63% | 2493 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,431 psi | 54% | 2421 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 48,008 psi | 77% | 2530 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 40,872 psi | 66% | 2431 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 82% | 35,926 psi | 58% | 2375 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 44,527 psi | 71% | 2470 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,453 psi | 70% | 2451 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 52,475 psi | 84% | 2566 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,713 psi | 67% | 2438 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,037 psi | 79% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,631 psi | 78% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,409 psi | 68% | 2398 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,898 psi | 61% | 2421 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,109 psi | 77% | 2526 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,266 psi | 71% | 2470 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 37,144 psi | 60% | 2415 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,156 psi | 55% | 2310 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 45,963 psi | 74% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,901 psi | 67% | 2451 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 35,926 psi | 58% | 2346 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 52,823 psi | 85% | 2546 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,249 psi | 66% | 2454 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 32,561 psi | 52% | 2323 fps | 98.6% |
| Vihtavuori N560 | <<locked>> | 90% | 44,628 psi | 72% | 2608 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 41,162 psi | 66% | 2533 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,886 psi | 66% | 2421 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,844 psi | 69% | 2510 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,788 psi | 41% | 2247 fps | 98.3% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,174 psi | 61% | 2398 fps | 95.6% |
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 83 powders for .300 Win. Mag. loaded with the .308 | 205gr | Berger Elite Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 2,831 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,831 fps. ADI AR 2225 gives the best case fill at 100 %, and 83 of the 83 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 205.0 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. Alliant Reloder-26, Norma MRP, Accurate MAGPRO rank at the top here: for .300 Win. Mag. with the .308 | 205gr | Berger Elite Hunter 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.