Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 150gr | Nosler Ballistic Tip Hunting bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Ramshot Grand 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 56,797 psi | 89% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,375 psi | 85% | 2943 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,418 psi | 85% | 3051 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 94% | 55,187 psi | 86% | 3051 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 55,767 psi | 87% | 2907 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,187 psi | 86% | 2995 fps | 99% |
| ADI AR 2213 | <<locked>> | 96% | 56,594 psi | 89% | 3058 fps | 98.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,427 psi | 74% | 2884 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,250 psi | 66% | 2838 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,130 psi | 90% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,230 psi | 87% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,565 psi | 89% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,839 psi | 86% | 2986 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,434 psi | 88% | 3051 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,638 psi | 90% | 3025 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,214 psi | 83% | 3028 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,201 psi | 85% | 3061 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 55,593 psi | 87% | 3035 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,269 psi | 77% | 2956 fps | 97.7% |
| Bofors RP5 | <<locked>> | 96% | 56,434 psi | 88% | 3051 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 57,101 psi | 89% | 2946 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,315 psi | 82% | 2976 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 86% | 56,318 psi | 88% | 2999 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 55,245 psi | 87% | 2953 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 56,652 psi | 89% | 2995 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,622 psi | 87% | 2976 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,622 psi | 87% | 2923 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,185 psi | 82% | 3091 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 56,681 psi | 89% | 3035 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,927 psi | 58% | 1860 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,955 psi | 86% | 2930 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,143 psi | 86% | 2917 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 54,955 psi | 86% | 2940 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,186 psi | 85% | 2920 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 96% | 54,462 psi | 85% | 3031 fps | 98.2% |
| Lovex S065 | <<locked>> | 86% | 55,666 psi | 87% | 2913 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,261 psi | 90% | 2963 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 2923 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 56,072 psi | 88% | 2986 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 37,768 psi | 59% | 2759 fps | 96.4% |
| Norma MRP | <<locked>> | 94% | 56,405 psi | 88% | 3077 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 56,565 psi | 89% | 2982 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,056 psi | 86% | 3054 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 55,492 psi | 87% | 2986 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,464 psi | 90% | 3048 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,782 psi | 59% | 1903 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,869 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,404 psi | 85% | 2966 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,449 psi | 88% | 3051 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,750 psi | 83% | 3087 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 54,824 psi | 86% | 2897 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,449 psi | 88% | 2966 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 54,288 psi | 85% | 2976 fps | 99% |
| Rottweil R 907 | <<locked>> | 86% | 57,101 psi | 89% | 2946 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,666 psi | 87% | 2913 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,261 psi | 90% | 2963 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,289 psi | 88% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,810 psi | 86% | 2769 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,969 psi | 86% | 2867 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,435 psi | 90% | 3028 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 54,433 psi | 85% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,592 psi | 86% | 2900 fps | 97.4% |
| Somchem S365 | <<locked>> | 90% | 56,913 psi | 89% | 2986 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,795 psi | 86% | 2946 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 55,666 psi | 87% | 2861 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,723 psi | 86% | 2920 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,317 psi | 85% | 2927 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 57,682 psi | 90% | 2982 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,260 psi | 88% | 3002 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,275 psi | 88% | 3068 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 3048 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,302 psi | 85% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,318 psi | 88% | 2999 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 55,158 psi | 86% | 3110 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,694 psi | 86% | 2943 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% | 33,054 psi | 52% | 2507 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 44,411 psi | 70% | 2772 fps | 99.8% |
| Accurate High Country | <<locked>> | 86% | 43,976 psi | 69% | 2854 fps | 95.8% |
| Accurate MAGPRO | 69.3 gr | 90% | 47,848 psi | 75% | 2917 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 52,446 psi | 82% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,595 psi | 62% | 2694 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 88% | 43,308 psi | 68% | 2805 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 98% | 44,440 psi | 70% | 2822 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 94% | 34,766 psi | 54% | 2648 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,490 psi | 84% | 2877 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,583 psi | 67% | 2779 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,994 psi | 77% | 2900 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,537 psi | 62% | 2687 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 86% | 40,350 psi | 63% | 2746 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,633 psi | 50% | 2533 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 31,560 psi | 49% | 2552 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,374 psi | 54% | 2664 fps | 98% |
| Bofors RP15 | <<locked>> | 88% | 39,987 psi | 63% | 2736 fps | 95.7% |
| Bofors RP30 | <<locked>> | 94% | 40,030 psi | 63% | 2769 fps | 95% |
| Bofors RP5 | <<locked>> | 86% | 40,350 psi | 63% | 2746 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 47,239 psi | 74% | 2776 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 42,554 psi | 67% | 2785 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 46,035 psi | 72% | 2822 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 48,602 psi | 76% | 2835 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 46,267 psi | 73% | 2812 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,397 psi | 71% | 2795 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,103 psi | 63% | 2661 fps | 100% |
| Hodgdon Retumbo | 65.6 gr | 90% | 37,449 psi | 59% | 2756 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 45,469 psi | 71% | 2841 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,615 psi | 43% | 1660 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,844 psi | 67% | 2707 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,660 psi | 76% | 2805 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 42,235 psi | 66% | 2717 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,947 psi | 70% | 2749 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 90% | 44,382 psi | 70% | 2841 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 46,151 psi | 72% | 2753 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 44,614 psi | 70% | 2743 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 32,416 psi | 51% | 2490 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 42,699 psi | 67% | 2740 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 35,389 psi | 55% | 2694 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 34,330 psi | 54% | 2628 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 43,685 psi | 68% | 2762 fps | 99.7% |
| Ramshot Grand | 66 gr | 88% | 41,263 psi | 65% | 2782 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 42,482 psi | 67% | 2753 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 36,767 psi | 58% | 2657 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,253 psi | 44% | 1703 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 52,025 psi | 82% | 2946 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,353 psi | 70% | 2792 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,554 psi | 67% | 2805 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,214 psi | 54% | 2664 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 51,430 psi | 81% | 2844 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,743 psi | 69% | 2733 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 38,899 psi | 61% | 2674 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 47,239 psi | 74% | 2776 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,151 psi | 72% | 2753 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 44,614 psi | 70% | 2743 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,707 psi | 83% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,459 psi | 81% | 2723 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,208 psi | 71% | 2697 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,580 psi | 60% | 2671 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 51,169 psi | 80% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,788 psi | 70% | 2726 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 40,509 psi | 63% | 2717 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,941 psi | 58% | 2602 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 49,110 psi | 77% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,034 psi | 71% | 2756 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 36,521 psi | 57% | 2582 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 44,338 psi | 69% | 2756 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 35,607 psi | 56% | 2615 fps | 98.9% |
| Vihtavuori N560 | <<locked>> | 88% | 45,803 psi | 72% | 2877 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 94% | 45,600 psi | 71% | 2858 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,063 psi | 69% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,253 psi | 72% | 2825 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,137 psi | 44% | 2533 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,725 psi | 61% | 2638 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 75 powders for 7 mm Weath. Mag. loaded with the .284 | 150gr | Nosler Ballistic Tip Hunting. Winchester StaBALL HD delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,860 fps to 3,110 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:11.0 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. Hodgdon Retumbo, Ramshot Grand, Accurate MAGPRO rank at the top here: for 7 mm Weath. Mag. with the .284 | 150gr | Nosler Ballistic Tip Hunting 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.