Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 180gr | Lapua ScenarL bullet and 71 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 Winchester StaBALL HD.
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% | 55,129 psi | 86% | 2694 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,449 psi | 88% | 2720 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 57,522 psi | 90% | 2848 fps | 99% |
| ADI AR 2209 | <<locked>> | 90% | 57,043 psi | 89% | 2779 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 54,824 psi | 86% | 2789 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,736 psi | 83% | 2756 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,137 psi | 74% | 2720 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,319 psi | 90% | 2769 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,478 psi | 89% | 2769 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,071 psi | 86% | 2785 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,521 psi | 89% | 2753 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,854 psi | 88% | 2815 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,971 psi | 89% | 2838 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,014 psi | 88% | 2753 fps | 97.4% |
| Bofors RP15 | <<locked>> | 94% | 54,273 psi | 85% | 2772 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,637 psi | 87% | 2825 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 55,071 psi | 86% | 2785 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 54,607 psi | 86% | 2664 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 54,186 psi | 85% | 2779 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 54,259 psi | 85% | 2720 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,637 psi | 89% | 2730 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 54,592 psi | 86% | 2726 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,261 psi | 90% | 2766 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,638 psi | 90% | 2694 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,665 psi | 86% | 2890 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,534 psi | 85% | 2756 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,420 psi | 59% | 1693 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,333 psi | 88% | 2707 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,999 psi | 88% | 2687 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,695 psi | 89% | 2710 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,564 psi | 87% | 2710 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 94% | 56,681 psi | 89% | 2828 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,902 psi | 67% | 2635 fps | 97.8% |
| Lovex S065 | <<locked>> | 84% | 56,811 psi | 89% | 2684 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 55,013 psi | 86% | 2684 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,478 psi | 89% | 2713 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,479 psi | 90% | 2762 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 43,047 psi | 67% | 2657 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 54,824 psi | 86% | 2802 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,621 psi | 86% | 2700 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,682 psi | 90% | 2851 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 86% | 57,130 psi | 90% | 2759 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,927 psi | 88% | 2782 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,189 psi | 60% | 1732 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,492 psi | 89% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,781 psi | 86% | 2769 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,216 psi | 87% | 2884 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,273 psi | 85% | 2844 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 88% | 54,534 psi | 85% | 2700 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 90% | 56,289 psi | 88% | 2762 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 54,607 psi | 86% | 2664 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,811 psi | 89% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 55,013 psi | 86% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,912 psi | 88% | 2644 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,854 psi | 88% | 2759 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 55,796 psi | 87% | 2694 fps | 99% |
| Somchem S365 | <<locked>> | 86% | 55,332 psi | 87% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,579 psi | 89% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 57,014 psi | 89% | 2628 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,434 psi | 88% | 2694 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,173 psi | 88% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 55,419 psi | 87% | 2697 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,129 psi | 86% | 2730 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,578 psi | 86% | 2799 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 54,752 psi | 86% | 2789 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,434 psi | 87% | 2851 fps | 98.6% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,344 psi | 82% | 2838 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,680 psi | 87% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,259 psi | 85% | 2720 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,737 psi | 86% | 2831 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,521 psi | 89% | 2733 fps | 99.9% |
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% | 37,043 psi | 58% | 2388 fps | 99% |
| Accurate 4350 | <<locked>> | 80% | 49,298 psi | 77% | 2618 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 40,698 psi | 64% | 2552 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 41,002 psi | 64% | 2507 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 80% | 36,608 psi | 57% | 2441 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 37,753 psi | 59% | 2470 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 30,066 psi | 47% | 2326 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,079 psi | 74% | 2618 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,031 psi | 64% | 2503 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,898 psi | 58% | 2451 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,665 psi | 56% | 2411 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,893 psi | 48% | 2336 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,378 psi | 62% | 2556 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,760 psi | 73% | 2592 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 34,374 psi | 54% | 2392 fps | 95.7% |
| Bofors RP30 | <<locked>> | 86% | 34,722 psi | 54% | 2431 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,898 psi | 58% | 2451 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 51,474 psi | 81% | 2618 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 86% | 36,056 psi | 56% | 2434 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 50,647 psi | 79% | 2664 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 53,142 psi | 83% | 2677 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 80% | 39,117 psi | 61% | 2451 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,348 psi | 60% | 2434 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,527 psi | 70% | 2507 fps | 100% |
| Hodgdon Retumbo | 57.2 gr | 82% | 32,184 psi | 50% | 2415 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 50,560 psi | 79% | 2694 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,021 psi | 44% | 1512 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,789 psi | 73% | 2556 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,620 psi | 82% | 2635 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,644 psi | 73% | 2562 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,654 psi | 64% | 2448 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 82% | 37,710 psi | 59% | 2480 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,143 psi | 55% | 2464 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 50,314 psi | 79% | 2589 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,704 psi | 76% | 2585 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,995 psi | 50% | 2274 fps | 97.6% |
| Norma 204 | <<locked>> | 80% | 46,992 psi | 74% | 2598 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 30,908 psi | 48% | 2375 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,682 psi | 61% | 2516 fps | 98.6% |
| Norma URP | <<locked>> | 80% | 48,138 psi | 75% | 2602 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,478 psi | 59% | 2490 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 80% | 46,920 psi | 74% | 2605 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,096 psi | 49% | 2316 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,761 psi | 45% | 1549 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,110 psi | 77% | 2635 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,340 psi | 74% | 2657 fps | 100% |
| ReloadSwiss RS 76 | 59.7 gr | 80% | 29,051 psi | 46% | 2323 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,205 psi | 63% | 2592 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 42,221 psi | 66% | 2484 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 80% | 40,495 psi | 63% | 2490 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 80% | 51,474 psi | 81% | 2618 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,314 psi | 79% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,704 psi | 76% | 2585 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,168 psi | 77% | 2543 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,161 psi | 63% | 2487 fps | 97.8% |
| Somchem S361 | <<locked>> | 80% | 42,917 psi | 67% | 2477 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 45,382 psi | 71% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,959 psi | 64% | 2474 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 80% | 53,432 psi | 84% | 2582 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,530 psi | 78% | 2595 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,563 psi | 56% | 2356 fps | 96.9% |
| Vihtavuori N550 | <<locked>> | 80% | 48,820 psi | 77% | 2598 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,900 psi | 63% | 2484 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,740 psi | 61% | 2507 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 86% | 39,175 psi | 61% | 2507 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 92% | 41,669 psi | 65% | 2605 fps | 95.3% |
| Vihtavuori N570 | <<locked>> | 98% | 48,660 psi | 76% | 2776 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,530 psi | 76% | 2552 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,865 psi | 80% | 2667 fps | 100% |
| Winchester StaBALL HD | 57.3 gr | 80% | 32,010 psi | 50% | 2444 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,521 psi | 59% | 2405 fps | 96.9% |
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 71 powders for 7 mm Weath. Mag. loaded with the .284 | 180gr | Lapua ScenarL. Hodgdon Retumbo delivers the highest muzzle velocity at 2,890 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,890 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 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 180.0 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, Bofors RP30 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, Winchester StaBALL HD rank at the top here: for 7 mm Weath. Mag. with the .284 | 180gr | Lapua ScenarL 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.