Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 180gr | CutEdge DGSC bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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>> | 96% | 54,302 psi | 85% | 2884 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 56,057 psi | 88% | 2927 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,217 psi | 90% | 3045 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 84% | 57,725 psi | 90% | 2894 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,334 psi | 90% | 2986 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 54,824 psi | 86% | 2986 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,745 psi | 72% | 2808 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,379 psi | 63% | 2756 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,347 psi | 87% | 2867 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,203 psi | 90% | 2989 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,621 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,637 psi | 89% | 2972 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,491 psi | 85% | 2976 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,405 psi | 87% | 2953 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,169 psi | 80% | 2953 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,854 psi | 88% | 3041 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,217 psi | 90% | 3018 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 56,347 psi | 88% | 2884 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,137 psi | 74% | 2877 fps | 97.1% |
| Bofors RP5 | <<locked>> | 96% | 54,491 psi | 85% | 2976 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 55,390 psi | 87% | 2877 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,517 psi | 79% | 2904 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 56,449 psi | 88% | 2904 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,447 psi | 85% | 2927 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 57,348 psi | 90% | 2943 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 94% | 54,795 psi | 86% | 2920 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,580 psi | 90% | 2966 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,363 psi | 90% | 2907 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,111 psi | 79% | 3009 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 86% | 54,781 psi | 86% | 2963 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,796 psi | 58% | 1824 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,159 psi | 90% | 2874 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,072 psi | 89% | 2917 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,101 psi | 89% | 2907 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 56,594 psi | 89% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,217 psi | 88% | 2910 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 56,420 psi | 88% | 3022 fps | 98.4% |
| Lovex S062 | <<locked>> | 82% | 57,493 psi | 90% | 2867 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,334 psi | 90% | 2900 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,390 psi | 87% | 2894 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,909 psi | 81% | 2851 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 54,273 psi | 85% | 2917 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 54,317 psi | 85% | 3002 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 54,737 psi | 86% | 2913 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,029 psi | 89% | 3041 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 57,319 psi | 90% | 2972 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,274 psi | 87% | 2972 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,463 psi | 59% | 1864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,347 psi | 88% | 2890 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,186 psi | 85% | 2936 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,217 psi | 88% | 2953 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,708 psi | 86% | 2982 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,560 psi | 79% | 3005 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 84% | 56,420 psi | 88% | 2877 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,810 psi | 86% | 2897 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 55,999 psi | 88% | 2959 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 55,390 psi | 87% | 2877 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,334 psi | 90% | 2900 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,493 psi | 90% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,390 psi | 87% | 2894 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,462 psi | 85% | 2887 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,840 psi | 89% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,913 psi | 89% | 2854 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,550 psi | 87% | 2956 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 56,318 psi | 88% | 2874 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,492 psi | 89% | 2890 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 54,911 psi | 86% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,391 psi | 88% | 2930 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 57,696 psi | 90% | 2848 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,681 psi | 89% | 2907 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,014 psi | 88% | 2913 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 55,767 psi | 87% | 2910 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,172 psi | 85% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,317 psi | 85% | 2995 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,592 psi | 84% | 2966 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,434 psi | 88% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,665 psi | 86% | 2930 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,811 psi | 89% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,753 psi | 89% | 2933 fps | 99.1% |
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% | 31,241 psi | 49% | 2428 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 42,482 psi | 67% | 2697 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 49,371 psi | 77% | 2907 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 50,995 psi | 80% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,828 psi | 64% | 2684 fps | 95.8% |
| ADI AR 2213 | 75.6 gr | 90% | 44,686 psi | 70% | 2792 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 98% | 42,656 psi | 67% | 2743 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 35,433 psi | 56% | 2631 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,025 psi | 82% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,959 psi | 64% | 2707 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,268 psi | 74% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,770 psi | 64% | 2677 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,609 psi | 61% | 2667 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,124 psi | 47% | 2457 fps | 98.4% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,037 psi | 47% | 2470 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,605 psi | 51% | 2579 fps | 97.2% |
| Bofors RP15 | <<locked>> | 90% | 41,046 psi | 64% | 2720 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 52,620 psi | 82% | 2828 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 40,843 psi | 64% | 2749 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 38,609 psi | 61% | 2667 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,716 psi | 72% | 2707 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 41,002 psi | 64% | 2710 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 52,779 psi | 83% | 2848 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,425 psi | 70% | 2749 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 47,210 psi | 74% | 2769 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 90% | 47,906 psi | 75% | 2802 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,920 psi | 74% | 2782 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,551 psi | 60% | 2595 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,203 psi | 60% | 2736 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 43,729 psi | 69% | 2766 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,485 psi | 43% | 1631 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,664 psi | 84% | 2825 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,365 psi | 65% | 2638 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,369 psi | 74% | 2740 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 40,524 psi | 64% | 2644 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,369 psi | 73% | 2740 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 90% | 42,786 psi | 67% | 2766 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 54,056 psi | 85% | 2818 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,628 psi | 70% | 2684 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 42,859 psi | 67% | 2667 fps | 98.2% |
| Lovex S071 | <<locked>> | 86% | 32,721 psi | 51% | 2464 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 41,089 psi | 64% | 2667 fps | 95.7% |
| Norma MRP | 71.1 gr | 82% | 35,201 psi | 55% | 2615 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 41,916 psi | 66% | 2687 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 42,598 psi | 67% | 2776 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 40,814 psi | 64% | 2677 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 37,753 psi | 59% | 2644 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 44% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,591 psi | 82% | 2831 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,212 psi | 79% | 2881 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,366 psi | 66% | 2717 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,915 psi | 64% | 2733 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,085 psi | 55% | 2651 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 49,429 psi | 77% | 2772 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,337 psi | 66% | 2664 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 39,842 psi | 62% | 2657 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 45,716 psi | 72% | 2707 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,628 psi | 70% | 2684 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 54,056 psi | 85% | 2818 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,859 psi | 67% | 2667 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,981 psi | 80% | 2831 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,067 psi | 78% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,671 psi | 68% | 2631 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,494 psi | 62% | 2654 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 49,516 psi | 78% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,166 psi | 72% | 2713 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 38,711 psi | 61% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,331 psi | 55% | 2526 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 47,355 psi | 74% | 2697 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,497 psi | 68% | 2690 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,347 psi | 59% | 2566 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 42,772 psi | 67% | 2687 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 33,765 psi | 53% | 2536 fps | 98.4% |
| Vihtavuori N560 | 78 gr | 90% | 47,094 psi | 74% | 2864 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 94% | 43,497 psi | 68% | 2776 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,482 psi | 67% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,614 psi | 70% | 2753 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,542 psi | 42% | 2441 fps | 97.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,856 psi | 62% | 2628 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 85 powders for .300 Weath. Mag. loaded with the .308 | 180gr | CutEdge DGSC. Winchester StaBALL HD delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,091 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for .300 Weath. Mag. with the .308 | 180gr | CutEdge DGSC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, Vihtavuori N170 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.