Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 160gr | Brenneke TAG bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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>> | 94% | 54,998 psi | 86% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,507 psi | 89% | 2894 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,740 psi | 90% | 3018 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 82% | 57,522 psi | 90% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,595 psi | 90% | 2956 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 55,361 psi | 87% | 2963 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,443 psi | 77% | 2854 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,990 psi | 69% | 2812 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,522 psi | 90% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,984 psi | 86% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,826 psi | 89% | 2943 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,303 psi | 87% | 2956 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,304 psi | 88% | 2923 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,796 psi | 87% | 2986 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 57,029 psi | 89% | 3015 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,029 psi | 89% | 2923 fps | 96.6% |
| Bofors RP15 | <<locked>> | 96% | 54,215 psi | 85% | 2940 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 2923 fps | 98.7% |
| Bofors RP5 | <<locked>> | 94% | 55,303 psi | 87% | 2956 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 55,288 psi | 87% | 2844 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,636 psi | 86% | 2949 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 54,549 psi | 85% | 2894 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 57,348 psi | 90% | 2910 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 55,100 psi | 86% | 2897 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,070 psi | 85% | 2881 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,696 psi | 90% | 2871 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,708 psi | 86% | 3061 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,085 psi | 86% | 2933 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 58% | 1808 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,014 psi | 89% | 2884 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,869 psi | 89% | 2867 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 56,797 psi | 89% | 2884 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,217 psi | 88% | 2884 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 96% | 57,014 psi | 89% | 2999 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 57,290 psi | 90% | 2864 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,477 psi | 87% | 2861 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,028 psi | 88% | 2874 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,273 psi | 85% | 2881 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 39,508 psi | 62% | 2733 fps | 97.9% |
| Norma MRP | <<locked>> | 92% | 55,114 psi | 86% | 2976 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,998 psi | 86% | 2877 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,679 psi | 84% | 2956 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 57,508 psi | 90% | 2940 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,086 psi | 88% | 2953 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,826 psi | 59% | 1850 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,652 psi | 89% | 2920 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,172 psi | 86% | 2949 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,608 psi | 87% | 3058 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2936 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 82% | 56,478 psi | 89% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,085 psi | 86% | 2871 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 92% | 56,318 psi | 88% | 2930 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 55,288 psi | 87% | 2844 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,290 psi | 90% | 2864 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,477 psi | 87% | 2861 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,434 psi | 88% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,550 psi | 89% | 2818 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,898 psi | 88% | 2927 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 56,043 psi | 88% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,565 psi | 89% | 2864 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 55,492 psi | 87% | 2881 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,898 psi | 89% | 2904 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,363 psi | 90% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,869 psi | 89% | 2871 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,536 psi | 89% | 2887 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 55,782 psi | 87% | 2874 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,795 psi | 86% | 2897 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,955 psi | 86% | 2972 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 98% | 54,636 psi | 86% | 2949 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,459 psi | 81% | 2943 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,260 psi | 88% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,810 psi | 86% | 2900 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,447 psi | 85% | 3005 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,985 psi | 89% | 2904 fps | 99.6% |
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% | 33,953 psi | 53% | 2464 fps | 97.2% |
| Accurate 4350 | <<locked>> | 80% | 45,832 psi | 72% | 2726 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,337 psi | 68% | 2759 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 54,085 psi | 85% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,377 psi | 60% | 2598 fps | 96% |
| ADI AR 2213 | <<locked>> | 86% | 41,814 psi | 66% | 2707 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 94% | 40,364 psi | 63% | 2671 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 90% | 31,473 psi | 49% | 2497 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,034 psi | 69% | 2733 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,024 psi | 80% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,348 psi | 60% | 2595 fps | 96% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,564 psi | 57% | 2592 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,750 psi | 51% | 2493 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,471 psi | 45% | 2398 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,969 psi | 56% | 2635 fps | 99% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,432 psi | 84% | 2861 fps | 95.8% |
| Bofors RP15 | <<locked>> | 84% | 36,260 psi | 57% | 2582 fps | 95.2% |
| Bofors RP30 | <<locked>> | 92% | 38,972 psi | 61% | 2674 fps | 95.5% |
| Bofors RP5 | <<locked>> | 82% | 36,564 psi | 57% | 2592 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 48,602 psi | 76% | 2733 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 90% | 38,479 psi | 60% | 2631 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 47,659 psi | 75% | 2776 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 80% | 50,256 psi | 79% | 2795 fps | 99% |
| Hodgdon H4831 | <<locked>> | 84% | 41,916 psi | 66% | 2657 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,903 psi | 69% | 2697 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,568 psi | 65% | 2618 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,361 psi | 57% | 2667 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 47,282 psi | 74% | 2802 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,688 psi | 43% | 1617 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,193 psi | 69% | 2664 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,140 psi | 79% | 2759 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 43,642 psi | 68% | 2671 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,584 psi | 68% | 2657 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 86% | 40,205 psi | 63% | 2680 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 47,471 psi | 74% | 2707 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,687 psi | 72% | 2694 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 29,051 psi | 46% | 2336 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 44,179 psi | 69% | 2703 fps | 97.5% |
| Norma 217 | <<locked>> | 96% | 34,360 psi | 54% | 2605 fps | 95.9% |
| Norma MRP | 61 gr | 80% | 35,607 psi | 56% | 2595 fps | 96.6% |
| Norma URP | <<locked>> | 80% | 44,976 psi | 70% | 2713 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,871 psi | 62% | 2690 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 43,990 psi | 69% | 2713 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 86% | 35,462 psi | 56% | 2562 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,326 psi | 44% | 1657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,948 psi | 72% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,237 psi | 69% | 2766 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,953 psi | 52% | 2569 fps | 95.6% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,946 psi | 67% | 2792 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 52,750 psi | 83% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,566 psi | 62% | 2579 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 37,521 psi | 59% | 2579 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 48,602 psi | 76% | 2733 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,471 psi | 74% | 2707 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,687 psi | 72% | 2694 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,997 psi | 83% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,441 psi | 73% | 2654 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,202 psi | 58% | 2572 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 52,663 psi | 83% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,062 psi | 67% | 2628 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 42,163 psi | 66% | 2671 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,058 psi | 60% | 2562 fps | 97% |
| Vihtavuori N150 | <<locked>> | 80% | 50,372 psi | 79% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,586 psi | 73% | 2710 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,215 psi | 55% | 2490 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 45,730 psi | 72% | 2710 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,666 psi | 57% | 2569 fps | 99.5% |
| Vihtavuori N560 | 64.1 gr | 84% | 41,452 psi | 65% | 2717 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 90% | 41,408 psi | 65% | 2703 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 98% | 47,674 psi | 75% | 2874 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,629 psi | 72% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,892 psi | 75% | 2782 fps | 99.4% |
| Winchester StaBALL HD | 60.4 gr | 80% | 28,993 psi | 45% | 2507 fps | 99.7% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,304 psi | 58% | 2543 fps | 95.7% |
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 74 powders for 7 mm Weath. Mag. loaded with the .284 | 160gr | Brenneke TAG. Hodgdon Retumbo delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,061 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 160.0 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm Weath. Mag. with the .284 | 160gr | Brenneke TAG 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.