Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 175gr | Berger VLD Hunting bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate MAGPRO and Norma MRP.
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% | 57,246 psi | 90% | 2897 fps | 99.3% |
| Accurate 3100 | <<locked>> | 98% | 56,898 psi | 89% | 2953 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 57,246 psi | 90% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,897 psi | 86% | 2943 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,332 psi | 87% | 3041 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 56,550 psi | 89% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,521 psi | 87% | 2989 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 56,942 psi | 89% | 3045 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,363 psi | 62% | 2753 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,259 psi | 85% | 2877 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,593 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,971 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,984 psi | 86% | 2976 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,420 psi | 88% | 3038 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,261 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,719 psi | 78% | 2959 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,751 psi | 84% | 3045 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,347 psi | 87% | 3018 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 55,158 psi | 86% | 2897 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,527 psi | 71% | 2874 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 56,420 psi | 88% | 3038 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 57,740 psi | 90% | 2940 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,023 psi | 77% | 2897 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 55,245 psi | 87% | 2913 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,637 psi | 89% | 2992 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 56,028 psi | 88% | 2949 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 57,072 psi | 89% | 2986 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,912 psi | 88% | 2966 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,941 psi | 88% | 2920 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,515 psi | 76% | 3002 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 57,145 psi | 90% | 3031 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 58% | 1837 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,956 psi | 88% | 2887 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,637 psi | 87% | 2923 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,854 psi | 88% | 2910 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 55,158 psi | 86% | 2930 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,723 psi | 86% | 2913 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 54,520 psi | 85% | 3015 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 56,434 psi | 88% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,231 psi | 88% | 2910 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,360 psi | 85% | 2904 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,604 psi | 79% | 2854 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 57,188 psi | 90% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,637 psi | 89% | 2979 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 56,202 psi | 88% | 3064 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 56,985 psi | 89% | 2979 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,056 psi | 86% | 3035 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 55,854 psi | 88% | 2982 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,243 psi | 83% | 2969 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 59% | 1883 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,158 psi | 86% | 2900 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,420 psi | 88% | 3005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,752 psi | 86% | 2963 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,739 psi | 89% | 3045 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,936 psi | 77% | 2999 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 55,419 psi | 87% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,174 psi | 90% | 2959 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 54,317 psi | 85% | 2963 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 57,740 psi | 90% | 2940 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,231 psi | 88% | 2910 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,434 psi | 88% | 2881 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,360 psi | 85% | 2904 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,811 psi | 89% | 2949 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,724 psi | 87% | 2772 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,651 psi | 87% | 2864 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,853 psi | 84% | 2956 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 55,085 psi | 86% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,201 psi | 87% | 2894 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 56,942 psi | 89% | 2979 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,143 psi | 86% | 2940 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 56,478 psi | 89% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,347 psi | 87% | 2917 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,491 psi | 85% | 2913 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 57,000 psi | 89% | 2858 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,433 psi | 85% | 2920 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,086 psi | 88% | 2992 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,231 psi | 88% | 3054 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,982 psi | 81% | 2966 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,824 psi | 86% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,869 psi | 89% | 2995 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,969 psi | 85% | 3094 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,984 psi | 86% | 2930 fps | 98.6% |
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% | 53,592 psi | 84% | 2838 fps | 98.9% |
| Accurate 3100 | <<locked>> | 82% | 33,025 psi | 52% | 2497 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 53,737 psi | 84% | 2825 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,713 psi | 65% | 2710 fps | 99.3% |
| Accurate MAGPRO | 81 gr | 94% | 51,372 psi | 81% | 2972 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 50,082 psi | 78% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,059 psi | 63% | 2690 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 46,514 psi | 73% | 2854 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 36,970 psi | 58% | 2690 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,952 psi | 80% | 2828 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,132 psi | 63% | 2717 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,861 psi | 72% | 2841 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,798 psi | 62% | 2680 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,292 psi | 63% | 2733 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,718 psi | 47% | 2470 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,604 psi | 50% | 2539 fps | 95.4% |
| Alliant Reloder-26 | 69.7 gr | 80% | 31,923 psi | 50% | 2585 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 39,943 psi | 63% | 2723 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 51,706 psi | 81% | 2841 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,598 psi | 67% | 2815 fps | 95.3% |
| Bofors RP5 | <<locked>> | 88% | 40,292 psi | 63% | 2733 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 45,063 psi | 71% | 2720 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,757 psi | 67% | 2769 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 51,822 psi | 81% | 2858 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,497 psi | 68% | 2756 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 46,238 psi | 72% | 2776 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 90% | 46,659 psi | 73% | 2805 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,834 psi | 77% | 2844 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,797 psi | 59% | 2605 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,813 psi | 62% | 2802 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,467 psi | 67% | 2769 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 43% | 1644 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,707 psi | 83% | 2838 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,538 psi | 64% | 2641 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,412 psi | 73% | 2746 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 39,929 psi | 63% | 2657 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,327 psi | 76% | 2799 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 44,527 psi | 70% | 2825 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 53,026 psi | 83% | 2831 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,034 psi | 69% | 2697 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 42,279 psi | 66% | 2680 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 32,358 psi | 51% | 2480 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 53,722 psi | 84% | 2887 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,277 psi | 63% | 2674 fps | 95% |
| Norma MRP | 71.1 gr | 84% | 36,956 psi | 58% | 2687 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 41,162 psi | 65% | 2700 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 44,440 psi | 70% | 2838 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,958 psi | 63% | 2687 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 39,523 psi | 62% | 2710 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 44% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,663 psi | 81% | 2841 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,675 psi | 76% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,524 psi | 65% | 2726 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,914 psi | 63% | 2736 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,767 psi | 58% | 2720 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 48,733 psi | 76% | 2789 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,280 psi | 69% | 2730 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 39,015 psi | 61% | 2664 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 45,063 psi | 71% | 2720 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,034 psi | 69% | 2697 fps | 98.9% |
| Shooters World Precision | <<locked>> | 80% | 53,026 psi | 83% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,279 psi | 66% | 2680 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,908 psi | 78% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,385 psi | 77% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,989 psi | 67% | 2641 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,350 psi | 65% | 2720 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,762 psi | 76% | 2785 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,240 psi | 76% | 2776 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,753 psi | 59% | 2654 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,115 psi | 58% | 2592 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,630 psi | 73% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,583 psi | 67% | 2697 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 39,204 psi | 61% | 2631 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 53,650 psi | 84% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,003 psi | 66% | 2697 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 33,141 psi | 52% | 2549 fps | 97.9% |
| Vihtavuori N560 | <<locked>> | 90% | 45,861 psi | 72% | 2867 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 45,382 psi | 71% | 2841 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,510 psi | 65% | 2661 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,497 psi | 68% | 2756 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,310 psi | 41% | 2451 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,713 psi | 65% | 2694 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 87 powders for .300 Weath. Mag. loaded with the .308 | 175gr | Berger VLD Hunting. Winchester StaBALL HD delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,094 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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-26, Accurate MAGPRO, Norma MRP rank at the top here: for .300 Weath. Mag. with the .308 | 175gr | Berger VLD Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 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.