Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 165gr | Remington SP Core-Lokt bullet and 72 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.
A valid access license is required to use the Personalized Load Calculator.
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 3100 | <<locked>> | 92% | 55,042 psi | 86% | 2818 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,159 psi | 88% | 2841 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,521 psi | 89% | 2966 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 92% | 57,479 psi | 90% | 2969 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 90% | 56,971 psi | 89% | 2907 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 54,810 psi | 86% | 2913 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,576 psi | 82% | 2874 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,340 psi | 74% | 2838 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 57,232 psi | 90% | 2904 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,029 psi | 89% | 2897 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,550 psi | 89% | 2894 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 55,071 psi | 86% | 2907 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,362 psi | 88% | 2877 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,898 psi | 88% | 2940 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,811 psi | 89% | 2966 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,144 psi | 88% | 2871 fps | 96.9% |
| Bofors RP15 | <<locked>> | 96% | 57,696 psi | 90% | 2946 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,448 psi | 87% | 2943 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 55,071 psi | 86% | 2907 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 54,476 psi | 85% | 2789 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 54,346 psi | 85% | 2904 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 57,609 psi | 90% | 2897 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,463 psi | 88% | 2854 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 90% | 54,491 psi | 85% | 2848 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,261 psi | 90% | 2890 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,450 psi | 90% | 2822 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,839 psi | 86% | 3018 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,230 psi | 85% | 2874 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,275 psi | 58% | 1788 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,130 psi | 88% | 2828 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,811 psi | 87% | 2812 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,536 psi | 89% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,463 psi | 87% | 2831 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 94% | 56,536 psi | 89% | 2949 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,685 psi | 67% | 2736 fps | 97% |
| Lovex S065 | <<locked>> | 84% | 56,768 psi | 89% | 2812 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,839 psi | 86% | 2808 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,289 psi | 88% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,435 psi | 90% | 2890 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 43,018 psi | 67% | 2766 fps | 99% |
| Norma MRP | <<locked>> | 90% | 54,737 psi | 86% | 2923 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,433 psi | 85% | 2825 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,464 psi | 90% | 2972 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 57,058 psi | 89% | 2887 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,782 psi | 87% | 2904 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,189 psi | 60% | 1834 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,246 psi | 88% | 2867 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,636 psi | 86% | 2894 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,448 psi | 87% | 3012 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,433 psi | 85% | 2966 fps | 98.4% |
| Rottweil R 904 | <<locked>> | 88% | 54,476 psi | 85% | 2822 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 55,956 psi | 88% | 2881 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 54,476 psi | 85% | 2789 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,768 psi | 89% | 2812 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,839 psi | 86% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,898 psi | 88% | 2769 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,521 psi | 87% | 2877 fps | 99.7% |
| Somchem S361 | <<locked>> | 88% | 55,695 psi | 87% | 2812 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 55,114 psi | 86% | 2828 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,550 psi | 89% | 2858 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 56,768 psi | 89% | 2753 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,173 psi | 88% | 2818 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,057 psi | 88% | 2838 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 55,463 psi | 87% | 2825 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 55,100 psi | 86% | 2854 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,476 psi | 85% | 2920 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 96% | 54,650 psi | 86% | 2907 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,506 psi | 87% | 2969 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,477 psi | 87% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,215 psi | 85% | 2844 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,795 psi | 86% | 2959 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,391 psi | 88% | 2851 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% | 36,941 psi | 58% | 2493 fps | 98.4% |
| Accurate 4350 | <<locked>> | 80% | 49,197 psi | 77% | 2736 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 39,914 psi | 63% | 2651 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 84% | 43,424 psi | 68% | 2717 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,727 psi | 64% | 2615 fps | 97.2% |
| ADI AR 2213 | <<locked>> | 82% | 39,015 psi | 61% | 2605 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 90% | 37,666 psi | 59% | 2572 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 31,879 psi | 50% | 2474 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,321 psi | 65% | 2618 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,920 psi | 74% | 2740 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,930 psi | 64% | 2612 fps | 97.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,724 psi | 58% | 2552 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,491 psi | 56% | 2516 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,661 psi | 48% | 2428 fps | 97.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,160 psi | 61% | 2661 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,661 psi | 78% | 2756 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 36,608 psi | 57% | 2549 fps | 95.8% |
| Bofors RP30 | <<locked>> | 88% | 37,014 psi | 58% | 2589 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 36,724 psi | 58% | 2552 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 51,285 psi | 80% | 2736 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 35,998 psi | 56% | 2533 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 50,546 psi | 79% | 2785 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 52,939 psi | 83% | 2799 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 41,611 psi | 65% | 2612 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,872 psi | 64% | 2595 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,222 psi | 69% | 2621 fps | 100% |
| Hodgdon Retumbo | 62.5 gr | 84% | 34,330 psi | 54% | 2572 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 50,517 psi | 79% | 2815 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 44% | 1598 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,499 psi | 73% | 2671 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,620 psi | 82% | 2759 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 46,586 psi | 73% | 2680 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,422 psi | 63% | 2552 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 84% | 40,263 psi | 63% | 2644 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,347 psi | 59% | 2618 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 50,183 psi | 79% | 2710 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,472 psi | 76% | 2703 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 31,720 psi | 50% | 2369 fps | 96.8% |
| Norma 204 | <<locked>> | 80% | 46,862 psi | 73% | 2713 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 32,880 psi | 52% | 2526 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,508 psi | 60% | 2621 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 47,877 psi | 75% | 2720 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,159 psi | 58% | 2585 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 46,775 psi | 73% | 2720 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 33,243 psi | 52% | 2470 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,616 psi | 45% | 1637 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,066 psi | 77% | 2756 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,166 psi | 74% | 2776 fps | 100% |
| ReloadSwiss RS 76 | 65.3 gr | 82% | 31,154 psi | 49% | 2480 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 43,337 psi | 68% | 2762 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 42,047 psi | 66% | 2595 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 40,234 psi | 63% | 2595 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 51,285 psi | 80% | 2736 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,183 psi | 79% | 2710 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,472 psi | 76% | 2703 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,066 psi | 77% | 2661 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,900 psi | 63% | 2592 fps | 97.1% |
| Somchem S361 | <<locked>> | 80% | 42,772 psi | 67% | 2582 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 45,078 psi | 71% | 2674 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,785 psi | 64% | 2579 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 53,214 psi | 83% | 2703 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,429 psi | 77% | 2713 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,491 psi | 56% | 2457 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 80% | 48,544 psi | 76% | 2717 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,726 psi | 62% | 2592 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 41,466 psi | 65% | 2677 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 86% | 38,957 psi | 61% | 2605 fps | 95% |
| Vihtavuori N568 | <<locked>> | 94% | 44,701 psi | 70% | 2776 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,544 psi | 76% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,778 psi | 80% | 2789 fps | 99.8% |
| Winchester StaBALL HD | 61.1 gr | 80% | 31,836 psi | 50% | 2546 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,289 psi | 58% | 2503 fps | 96.1% |
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 72 powders for 7 mm Weath. Mag. loaded with the .284 | 165gr | Remington SP Core-Lokt. Hodgdon Retumbo delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,018 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 165.0 gr projectile in 0.284" calls for a 1:12.5 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 | 165gr | Remington SP Core-Lokt 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.