Load Specifications
Load data in caliber .300 Win. Mag. with .308 | 180gr | Nosler AccuBond bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70 and Alliant Reloder-26.
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% | 54,911 psi | 88% | 2717 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,028 psi | 90% | 2785 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 2828 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,347 psi | 89% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,941 psi | 90% | 2881 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,724 psi | 89% | 2966 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 55,288 psi | 89% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,316 psi | 85% | 2864 fps | 97.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,549 psi | 87% | 2913 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,549 psi | 87% | 2927 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,072 psi | 90% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,347 psi | 90% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,127 psi | 85% | 2881 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,128 psi | 87% | 2904 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,144 psi | 90% | 2907 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2910 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,241 psi | 81% | 2841 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,830 psi | 70% | 2769 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,838 psi | 86% | 2982 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,791 psi | 78% | 2831 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 53,301 psi | 85% | 2789 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2910 fps | 98.1% |
| Bofors RP7 | <<locked>> | 90% | 56,347 psi | 90% | 2828 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 53,809 psi | 86% | 2808 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,331 psi | 87% | 2874 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 54,230 psi | 87% | 2835 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 98% | 54,650 psi | 88% | 2861 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,388 psi | 86% | 2841 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,301 psi | 85% | 2805 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,824 psi | 88% | 2838 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,917 psi | 69% | 2795 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 90% | 54,389 psi | 87% | 2910 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,506 psi | 59% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,550 psi | 89% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,708 psi | 88% | 2785 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,838 psi | 86% | 2766 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 53,679 psi | 86% | 2808 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,549 psi | 87% | 2802 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 56,333 psi | 90% | 2871 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,128 psi | 87% | 2822 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,275 psi | 90% | 2848 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2884 fps | 96.4% |
| Lovex S060 | <<locked>> | 82% | 56,130 psi | 90% | 2769 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,897 psi | 88% | 2779 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,665 psi | 88% | 2802 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 55,912 psi | 90% | 2844 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,570 psi | 71% | 2680 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 56,318 psi | 90% | 2789 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,637 psi | 89% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,302 psi | 87% | 2858 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 52,779 psi | 85% | 2933 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 54,607 psi | 88% | 2861 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,420 psi | 90% | 2861 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,228 psi | 84% | 2900 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 92% | 53,287 psi | 85% | 2861 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,354 psi | 74% | 2769 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,043 psi | 59% | 1791 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,708 psi | 86% | 2792 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,664 psi | 86% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,666 psi | 89% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,273 psi | 87% | 2930 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,743 psi | 69% | 2785 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 53,505 psi | 86% | 2743 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,403 psi | 86% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,042 psi | 88% | 2838 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 98% | 55,230 psi | 89% | 2894 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 56,347 psi | 90% | 2828 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,665 psi | 88% | 2802 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 54,897 psi | 88% | 2779 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,912 psi | 90% | 2844 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,955 psi | 88% | 2848 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,883 psi | 90% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,636 psi | 88% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,244 psi | 87% | 2753 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,737 psi | 88% | 2887 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 53,563 psi | 86% | 2785 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,142 psi | 85% | 2776 fps | 95.9% |
| Somchem S365 | <<locked>> | 94% | 53,693 psi | 86% | 2864 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,898 psi | 90% | 2871 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 53,983 psi | 87% | 2703 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,085 psi | 87% | 2717 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,621 psi | 88% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,272 psi | 85% | 2808 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,721 psi | 83% | 2792 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 55,782 psi | 89% | 2762 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,753 psi | 89% | 2861 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,376 psi | 90% | 2920 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,200 psi | 85% | 2923 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,376 psi | 90% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,578 psi | 88% | 2877 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,440 psi | 73% | 2900 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,130 psi | 90% | 2825 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,115 psi | 90% | 2864 fps | 98.3% |
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% | 51,503 psi | 83% | 2671 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,139 psi | 79% | 2677 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 33,344 psi | 53% | 2444 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 48,791 psi | 78% | 2677 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,057 psi | 59% | 2543 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 98% | 51,909 psi | 83% | 2904 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 45,890 psi | 74% | 2648 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,816 psi | 70% | 2690 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 96% | 47,674 psi | 76% | 2792 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,647 psi | 81% | 2861 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,485 psi | 75% | 2677 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,559 psi | 79% | 2743 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,143 psi | 58% | 2552 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,930 psi | 66% | 2677 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,482 psi | 70% | 2687 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,843 psi | 65% | 2677 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,556 psi | 43% | 2313 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,011 psi | 55% | 2536 fps | 96% |
| Alliant Reloder-26 | 62.9 gr | 82% | 30,182 psi | 48% | 2474 fps | 95.1% |
| Bofors RP15 | <<locked>> | 96% | 42,946 psi | 69% | 2720 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 46,688 psi | 75% | 2684 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,843 psi | 65% | 2677 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 41,292 psi | 66% | 2562 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 47,210 psi | 76% | 2700 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,001 psi | 63% | 2589 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 41,916 psi | 67% | 2608 fps | 95.5% |
| Hodgdon H4831 | <<locked>> | 96% | 50,995 psi | 82% | 2799 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,038 psi | 80% | 2782 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,634 psi | 54% | 2448 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,474 psi | 83% | 2789 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,190 psi | 64% | 2730 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 37,913 psi | 61% | 2595 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 44% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,214 psi | 84% | 2753 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,254 psi | 77% | 2684 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,662 psi | 81% | 2713 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 39,247 psi | 63% | 2539 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,525 psi | 68% | 2589 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 35,592 psi | 57% | 2497 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 50,821 psi | 81% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,574 psi | 79% | 2740 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 48,559 psi | 78% | 2822 fps | 95.6% |
| Lovex S060 | <<locked>> | 80% | 53,069 psi | 85% | 2723 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,675 psi | 78% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,190 psi | 64% | 2543 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 38,377 psi | 62% | 2523 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 34,476 psi | 55% | 2470 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 52,953 psi | 85% | 2740 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,892 psi | 78% | 2730 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,367 psi | 71% | 2684 fps | 95.7% |
| Norma MRP | <<locked>> | 88% | 37,507 psi | 60% | 2631 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 36,941 psi | 59% | 2539 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 49,139 psi | 79% | 2749 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,544 psi | 78% | 2835 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 35,810 psi | 57% | 2526 fps | 96% |
| Ramshot Magnum | <<locked>> | 96% | 40,147 psi | 64% | 2644 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,673 psi | 44% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,094 psi | 76% | 2680 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,482 psi | 70% | 2730 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,709 psi | 59% | 2559 fps | 97.8% |
| ReloadSwiss RS 70 | 60.8 gr | 80% | 35,708 psi | 57% | 2562 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,900 psi | 64% | 2720 fps | 96.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,459 psi | 81% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,063 psi | 71% | 2635 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,283 psi | 77% | 2723 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 90% | 42,496 psi | 68% | 2667 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 41,292 psi | 66% | 2562 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,190 psi | 64% | 2543 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 48,675 psi | 78% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,377 psi | 62% | 2523 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,150 psi | 72% | 2687 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,576 psi | 84% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,368 psi | 73% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,204 psi | 63% | 2487 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,119 psi | 68% | 2664 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 44,411 psi | 71% | 2635 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,806 psi | 80% | 2720 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 33,359 psi | 53% | 2497 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 37,913 psi | 61% | 2543 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 50,618 psi | 81% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,821 psi | 81% | 2671 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,337 psi | 68% | 2566 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,290 psi | 61% | 2536 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 39,740 psi | 64% | 2575 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 49,168 psi | 79% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,840 psi | 61% | 2543 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,138 psi | 47% | 2385 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 49,661 psi | 80% | 2861 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,521 psi | 60% | 2510 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,189 psi | 63% | 2592 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,918 psi | 40% | 2333 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,562 psi | 84% | 2772 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,598 psi | 68% | 2635 fps | 95.3% |
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 99 powders for .300 Win. Mag. loaded with the .308 | 180gr | Nosler AccuBond. Alliant Reloder-26 delivers the highest muzzle velocity at 2,982 fps; across all powders the maximum-charge window runs from 1,752 fps to 2,982 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 180.0 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. Hodgdon H1000, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .300 Win. Mag. with the .308 | 180gr | Nosler AccuBond they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.