Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 175gr | Alaska Bullet Works Kodiak PP SPBC bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 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>> | 92% | 56,666 psi | 89% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 57,740 psi | 90% | 2782 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 55,390 psi | 87% | 2861 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 88% | 54,853 psi | 86% | 2795 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 56,275 psi | 88% | 2858 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 54,230 psi | 85% | 2825 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,762 psi | 76% | 2789 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,042 psi | 86% | 2785 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,360 psi | 85% | 2782 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 56,521 psi | 89% | 2851 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,592 psi | 86% | 2769 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 57,740 psi | 90% | 2884 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,737 psi | 86% | 2851 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 51,010 psi | 80% | 2844 fps | 96.3% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 57,464 psi | 90% | 2822 fps | 97.7% |
| Bofors RP15 | <<locked>> | 94% | 55,695 psi | 87% | 2841 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 2894 fps | 99.8% |
| Bofors RP5 | <<locked>> | 92% | 56,521 psi | 89% | 2851 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 55,666 psi | 87% | 2730 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 56,028 psi | 88% | 2851 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 55,463 psi | 87% | 2785 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,028 psi | 88% | 2795 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,027 psi | 86% | 2782 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,230 psi | 87% | 2710 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 56,652 psi | 89% | 2966 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 55,840 psi | 88% | 2822 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,478 psi | 59% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 57,595 psi | 90% | 2772 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,000 psi | 89% | 2749 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,389 psi | 85% | 2723 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 56,811 psi | 89% | 2776 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 92% | 54,462 psi | 85% | 2838 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,251 psi | 69% | 2697 fps | 98% |
| Lovex S065 | <<locked>> | 82% | 54,650 psi | 86% | 2700 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,173 psi | 88% | 2749 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 54,404 psi | 85% | 2730 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,071 psi | 86% | 2776 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 44,686 psi | 70% | 2723 fps | 99.6% |
| Norma MRP | <<locked>> | 90% | 56,608 psi | 89% | 2871 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,883 psi | 88% | 2762 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 55,201 psi | 87% | 2861 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 54,853 psi | 86% | 2772 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,476 psi | 84% | 2792 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,232 psi | 60% | 1775 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,041 psi | 85% | 2756 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 56,260 psi | 88% | 2838 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 57,406 psi | 90% | 2959 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 2923 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 88% | 55,724 psi | 87% | 2762 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 90% | 57,696 psi | 90% | 2828 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 55,666 psi | 87% | 2730 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,650 psi | 86% | 2700 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,173 psi | 88% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 56,971 psi | 89% | 2707 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 57,319 psi | 90% | 2825 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 57,188 psi | 90% | 2759 fps | 99.1% |
| Somchem S365 | <<locked>> | 86% | 56,855 psi | 89% | 2769 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,418 psi | 85% | 2746 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 57,609 psi | 90% | 2756 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 54,056 psi | 85% | 2733 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 56,710 psi | 89% | 2759 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 56,695 psi | 89% | 2795 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 56,275 psi | 88% | 2871 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 96% | 56,405 psi | 88% | 2858 fps | 99.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 2920 fps | 98.8% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 54,244 psi | 85% | 2913 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 56,913 psi | 89% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 55,709 psi | 87% | 2789 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 56,971 psi | 89% | 2904 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,259 psi | 85% | 2743 fps | 99.7% |
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% | 38,029 psi | 60% | 2448 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 50,517 psi | 79% | 2680 fps | 100% |
| Accurate MAGPRO | 63.3 gr | 82% | 41,829 psi | 66% | 2615 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 42,003 psi | 66% | 2569 fps | 98% |
| ADI AR 2213 | <<locked>> | 80% | 37,463 psi | 59% | 2500 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 88% | 36,347 psi | 57% | 2477 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 86% | 30,879 psi | 48% | 2385 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,385 psi | 76% | 2684 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,003 psi | 66% | 2562 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,855 psi | 59% | 2510 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,593 psi | 57% | 2467 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,720 psi | 50% | 2395 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,712 psi | 64% | 2618 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 47,340 psi | 74% | 2776 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,732 psi | 75% | 2654 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 35,360 psi | 55% | 2451 fps | 96% |
| Bofors RP30 | <<locked>> | 86% | 35,824 psi | 56% | 2493 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 37,855 psi | 59% | 2510 fps | 97% |
| Bofors RP7 | <<locked>> | 80% | 52,359 psi | 82% | 2677 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 34,679 psi | 54% | 2438 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 51,880 psi | 81% | 2730 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 40,001 psi | 63% | 2507 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,247 psi | 62% | 2493 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,571 psi | 71% | 2566 fps | 100% |
| Hodgdon Retumbo | 59.9 gr | 82% | 33,127 psi | 52% | 2477 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 51,967 psi | 81% | 2762 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,108 psi | 44% | 1549 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,805 psi | 75% | 2618 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 53,693 psi | 84% | 2700 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,805 psi | 75% | 2625 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,553 psi | 65% | 2510 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 80% | 36,303 psi | 57% | 2487 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 94% | 36,332 psi | 57% | 2526 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 51,242 psi | 80% | 2651 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,763 psi | 78% | 2648 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 32,764 psi | 51% | 2329 fps | 97.8% |
| Norma 204 | <<locked>> | 80% | 48,138 psi | 75% | 2661 fps | 99% |
| Norma 217 | <<locked>> | 90% | 31,981 psi | 50% | 2438 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 39,842 psi | 62% | 2579 fps | 98.7% |
| Norma URP | <<locked>> | 80% | 49,298 psi | 77% | 2664 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,781 psi | 56% | 2487 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 48,066 psi | 75% | 2667 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,952 psi | 50% | 2372 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,834 psi | 45% | 1588 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,546 psi | 79% | 2700 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,733 psi | 76% | 2723 fps | 100% |
| ReloadSwiss RS 76 | 62.5 gr | 80% | 29,907 psi | 47% | 2385 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 41,771 psi | 65% | 2661 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 43,221 psi | 68% | 2546 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 80% | 41,568 psi | 65% | 2552 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 80% | 52,359 psi | 82% | 2677 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,242 psi | 80% | 2651 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,763 psi | 78% | 2648 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,125 psi | 79% | 2602 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,234 psi | 65% | 2549 fps | 98% |
| Somchem S361 | <<locked>> | 80% | 43,932 psi | 69% | 2539 fps | 96.8% |
| Somchem S365 | <<locked>> | 80% | 46,630 psi | 73% | 2621 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,916 psi | 66% | 2533 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 50,633 psi | 79% | 2657 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,506 psi | 57% | 2415 fps | 97.2% |
| Vihtavuori N550 | <<locked>> | 80% | 50,024 psi | 78% | 2664 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,075 psi | 64% | 2543 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,827 psi | 62% | 2569 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 84% | 37,739 psi | 59% | 2510 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 92% | 43,192 psi | 68% | 2674 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 98% | 50,560 psi | 79% | 2848 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,690 psi | 78% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,141 psi | 82% | 2733 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,330 psi | 52% | 2507 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,392 psi | 60% | 2461 fps | 97.1% |
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 76 powders for 7 mm Weath. Mag. loaded with the .284 | 175gr | Alaska Bullet Works Kodiak PP SPBC. Hodgdon Retumbo delivers the highest muzzle velocity at 2,966 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,966 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 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, ReloadSwiss RS 76, Accurate MAGPRO rank at the top here: for 7 mm Weath. Mag. with the .284 | 175gr | Alaska Bullet Works Kodiak PP SPBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2218, Alliant Reloder-50, IMR 7977 Enduron 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.