Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 155gr | Frontier PH HPFB bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 56,652 psi | 89% | 2913 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,331 psi | 85% | 2894 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,273 psi | 85% | 3002 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 94% | 55,187 psi | 86% | 3005 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 55,695 psi | 87% | 2858 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 55,129 psi | 86% | 2946 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 56,478 psi | 89% | 3005 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2835 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,076 psi | 66% | 2795 fps | 98.6% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,463 psi | 87% | 2946 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,101 psi | 89% | 2881 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,172 psi | 86% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,333 psi | 88% | 2966 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,781 psi | 86% | 2936 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,333 psi | 88% | 3002 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,435 psi | 90% | 2972 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,953 psi | 83% | 2976 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,882 psi | 84% | 3009 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 55,216 psi | 87% | 2982 fps | 99.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,994 psi | 77% | 2907 fps | 97.8% |
| Bofors RP5 | <<locked>> | 96% | 56,333 psi | 88% | 3002 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 57,000 psi | 89% | 2894 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,141 psi | 82% | 2927 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 86% | 56,101 psi | 88% | 2946 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 55,376 psi | 87% | 2907 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 56,492 psi | 89% | 2946 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,419 psi | 87% | 2930 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,622 psi | 87% | 2874 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,996 psi | 81% | 3038 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 86% | 56,492 psi | 89% | 2982 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1821 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,955 psi | 86% | 2881 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,984 psi | 86% | 2864 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 54,665 psi | 86% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,595 psi | 90% | 2927 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 96% | 54,346 psi | 85% | 2982 fps | 98.3% |
| Lovex S065 | <<locked>> | 86% | 55,521 psi | 87% | 2864 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,232 psi | 90% | 2913 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,998 psi | 85% | 2874 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,985 psi | 88% | 2936 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 37,550 psi | 59% | 2713 fps | 96.6% |
| Norma MRP | <<locked>> | 94% | 56,318 psi | 88% | 3028 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 56,565 psi | 89% | 2933 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,766 psi | 86% | 3002 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 55,376 psi | 87% | 2936 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 57,217 psi | 90% | 2995 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,884 psi | 59% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,740 psi | 90% | 2904 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,796 psi | 87% | 2953 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,244 psi | 85% | 2913 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,420 psi | 88% | 3002 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,533 psi | 82% | 3038 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 54,781 psi | 86% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,347 psi | 88% | 2917 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 92% | 54,201 psi | 85% | 2923 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 57,000 psi | 89% | 2894 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,521 psi | 87% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,232 psi | 90% | 2913 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,173 psi | 88% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,665 psi | 86% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,926 psi | 86% | 2818 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,406 psi | 90% | 2976 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 54,346 psi | 85% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,462 psi | 85% | 2851 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 56,739 psi | 89% | 2933 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,737 psi | 86% | 2900 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 55,724 psi | 87% | 2815 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,650 psi | 86% | 2867 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,172 psi | 85% | 2877 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 57,522 psi | 90% | 2930 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,202 psi | 88% | 2949 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 56,217 psi | 88% | 3022 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 2992 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,041 psi | 85% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,347 psi | 88% | 2953 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,607 psi | 86% | 3054 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,563 psi | 86% | 2894 fps | 99% |
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% | 32,967 psi | 52% | 2464 fps | 96.3% |
| Accurate 4350 | <<locked>> | 80% | 44,338 psi | 69% | 2726 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 41,002 psi | 64% | 2746 fps | 95.1% |
| Accurate MAGPRO | 67.5 gr | 90% | 47,688 psi | 75% | 2871 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 52,286 psi | 82% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 39,595 psi | 62% | 2651 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 88% | 43,134 psi | 68% | 2759 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 96% | 41,321 psi | 65% | 2710 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 94% | 34,606 psi | 54% | 2605 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,391 psi | 59% | 2595 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,621 psi | 84% | 2828 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,438 psi | 67% | 2730 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,820 psi | 77% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,566 psi | 62% | 2648 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,710 psi | 59% | 2644 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,691 psi | 50% | 2493 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,501 psi | 46% | 2451 fps | 95.3% |
| Alliant Reloder-26 | 60.7 gr | 80% | 34,345 psi | 54% | 2621 fps | 98.2% |
| Bofors RP15 | <<locked>> | 86% | 37,420 psi | 59% | 2635 fps | 95% |
| Bofors RP30 | <<locked>> | 94% | 40,030 psi | 63% | 2726 fps | 95.3% |
| Bofors RP5 | <<locked>> | 84% | 37,710 psi | 59% | 2644 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 47,152 psi | 74% | 2726 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 39,711 psi | 62% | 2677 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 46,079 psi | 72% | 2776 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 48,602 psi | 76% | 2789 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 88% | 46,108 psi | 72% | 2766 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,266 psi | 71% | 2746 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,987 psi | 63% | 2615 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 37,362 psi | 59% | 2713 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 45,281 psi | 71% | 2792 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,630 psi | 43% | 1624 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,786 psi | 67% | 2661 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,559 psi | 76% | 2756 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 42,206 psi | 66% | 2671 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,889 psi | 70% | 2707 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 88% | 41,437 psi | 65% | 2733 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 46,253 psi | 72% | 2710 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 44,527 psi | 70% | 2694 fps | 98.7% |
| Lovex S071 | <<locked>> | 82% | 30,255 psi | 47% | 2392 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 42,511 psi | 67% | 2690 fps | 96.5% |
| Norma 217 | <<locked>> | 98% | 35,143 psi | 55% | 2651 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 34,214 psi | 54% | 2585 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 43,598 psi | 68% | 2713 fps | 99.8% |
| Ramshot Grand | 64.3 gr | 88% | 41,162 psi | 65% | 2740 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 42,308 psi | 66% | 2703 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 36,738 psi | 58% | 2618 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 44% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,259 psi | 85% | 2851 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,837 psi | 81% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,193 psi | 69% | 2746 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,482 psi | 67% | 2759 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,200 psi | 54% | 2625 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 51,387 psi | 81% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,060 psi | 64% | 2631 fps | 95% |
| Rottweil R 905 | <<locked>> | 82% | 38,885 psi | 61% | 2631 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 47,152 psi | 74% | 2726 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,253 psi | 72% | 2710 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 44,527 psi | 70% | 2694 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,504 psi | 82% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,488 psi | 81% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,179 psi | 71% | 2654 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,566 psi | 60% | 2628 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 51,271 psi | 80% | 2789 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,643 psi | 70% | 2680 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 40,437 psi | 63% | 2671 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,898 psi | 58% | 2556 fps | 96% |
| Vihtavuori N150 | <<locked>> | 80% | 49,008 psi | 77% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,991 psi | 71% | 2710 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,434 psi | 57% | 2539 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 44,309 psi | 69% | 2710 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,534 psi | 56% | 2572 fps | 99% |
| Vihtavuori N560 | <<locked>> | 88% | 45,498 psi | 71% | 2828 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 92% | 42,366 psi | 66% | 2749 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,005 psi | 69% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,079 psi | 72% | 2776 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,021 psi | 44% | 2493 fps | 99% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,653 psi | 61% | 2595 fps | 95.5% |
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 77 powders for 7 mm Weath. Mag. loaded with the .284 | 155gr | Frontier PH HPFB. Winchester StaBALL HD delivers the highest muzzle velocity at 3,054 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,054 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 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 155.0 gr projectile in 0.284" calls for a 1:9.5 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. Accurate MAGPRO, Ramshot Grand, Alliant Reloder-26 rank at the top here: for 7 mm Weath. Mag. with the .284 | 155gr | Frontier PH HPFB 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.