Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 160gr | Norma Tipstrike bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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% | 55,303 psi | 87% | 2854 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,739 psi | 89% | 2887 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,609 psi | 90% | 3005 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 82% | 57,508 psi | 90% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,363 psi | 90% | 2943 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 55,013 psi | 86% | 2946 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,371 psi | 77% | 2844 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,092 psi | 69% | 2805 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 57,653 psi | 90% | 2943 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,624 psi | 90% | 2943 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,868 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,927 psi | 89% | 2933 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,042 psi | 86% | 2943 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,217 psi | 88% | 2913 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,593 psi | 87% | 2976 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,840 psi | 89% | 3009 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,884 psi | 89% | 2907 fps | 96.4% |
| Bofors RP15 | <<locked>> | 96% | 54,230 psi | 85% | 2930 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,634 psi | 81% | 2917 fps | 98.6% |
| Bofors RP5 | <<locked>> | 94% | 55,042 psi | 86% | 2943 fps | 99.5% |
| Bofors RP7 | <<locked>> | 84% | 55,274 psi | 87% | 2831 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,505 psi | 85% | 2933 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 84% | 54,592 psi | 86% | 2884 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 57,232 psi | 90% | 2897 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 54,984 psi | 86% | 2884 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,580 psi | 90% | 2927 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,653 psi | 90% | 2861 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,534 psi | 85% | 3048 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 54,969 psi | 86% | 2923 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,072 psi | 58% | 1801 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,000 psi | 89% | 2874 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,710 psi | 89% | 2854 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,942 psi | 89% | 2877 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,072 psi | 88% | 2871 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 56,637 psi | 89% | 2986 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 57,348 psi | 90% | 2851 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,593 psi | 87% | 2851 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,318 psi | 88% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,331 psi | 85% | 2874 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 39,653 psi | 62% | 2726 fps | 97.8% |
| Norma MRP | <<locked>> | 92% | 54,868 psi | 86% | 2963 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 55,013 psi | 86% | 2867 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,537 psi | 90% | 3009 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 88% | 57,595 psi | 90% | 2930 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,709 psi | 87% | 2936 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,985 psi | 60% | 1844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,608 psi | 89% | 2910 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,897 psi | 86% | 2936 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,129 psi | 86% | 3045 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 2927 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 82% | 56,782 psi | 89% | 2835 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,853 psi | 86% | 2854 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 56,478 psi | 89% | 2923 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 55,274 psi | 87% | 2831 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,348 psi | 90% | 2851 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,593 psi | 87% | 2851 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,405 psi | 88% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,695 psi | 89% | 2808 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,028 psi | 88% | 2920 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 56,231 psi | 88% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,362 psi | 88% | 2848 fps | 98.3% |
| Somchem S365 | <<locked>> | 88% | 55,564 psi | 87% | 2874 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,927 psi | 89% | 2897 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,624 psi | 90% | 2799 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,855 psi | 89% | 2864 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,318 psi | 88% | 2874 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 55,927 psi | 88% | 2867 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 55,056 psi | 86% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,694 psi | 86% | 2959 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 98% | 54,665 psi | 86% | 2940 fps | 98.5% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,256 psi | 80% | 2930 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,391 psi | 88% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,795 psi | 86% | 2890 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,056 psi | 85% | 2999 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,753 psi | 89% | 2887 fps | 99.5% |
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% | 34,548 psi | 54% | 2470 fps | 97.3% |
| Accurate 4350 | <<locked>> | 80% | 46,282 psi | 73% | 2723 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 46,789 psi | 73% | 2818 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 54,070 psi | 85% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,580 psi | 60% | 2595 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 86% | 41,959 psi | 66% | 2700 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 94% | 40,509 psi | 63% | 2661 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 90% | 31,937 psi | 50% | 2500 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,943 psi | 61% | 2595 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,280 psi | 69% | 2726 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,155 psi | 80% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,580 psi | 60% | 2589 fps | 96% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,738 psi | 58% | 2585 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,054 psi | 52% | 2497 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,892 psi | 45% | 2402 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,245 psi | 57% | 2635 fps | 99.1% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,505 psi | 84% | 2851 fps | 95.6% |
| Bofors RP15 | <<locked>> | 84% | 36,593 psi | 57% | 2582 fps | 95.2% |
| Bofors RP30 | <<locked>> | 92% | 39,349 psi | 62% | 2677 fps | 95.5% |
| Bofors RP5 | <<locked>> | 82% | 36,738 psi | 58% | 2585 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 48,776 psi | 76% | 2723 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 38,769 psi | 61% | 2625 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 47,877 psi | 75% | 2772 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 80% | 50,343 psi | 79% | 2785 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 84% | 42,032 psi | 66% | 2651 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,005 psi | 69% | 2690 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,756 psi | 65% | 2612 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,506 psi | 57% | 2661 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 47,384 psi | 74% | 2795 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 44% | 1608 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,324 psi | 69% | 2657 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,198 psi | 79% | 2749 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 43,932 psi | 69% | 2667 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,627 psi | 68% | 2648 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 86% | 40,350 psi | 63% | 2677 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 47,688 psi | 75% | 2697 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,992 psi | 72% | 2687 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 29,805 psi | 47% | 2349 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 44,208 psi | 69% | 2690 fps | 97.4% |
| Norma 217 | <<locked>> | 96% | 34,737 psi | 54% | 2608 fps | 95.9% |
| Norma MRP | 59.8 gr | 80% | 36,013 psi | 56% | 2598 fps | 96.7% |
| Norma URP | <<locked>> | 80% | 45,208 psi | 71% | 2707 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 40,118 psi | 63% | 2684 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 44,048 psi | 69% | 2700 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 35,839 psi | 56% | 2566 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,500 psi | 45% | 1650 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,079 psi | 72% | 2743 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,266 psi | 69% | 2756 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,475 psi | 52% | 2575 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 43,178 psi | 68% | 2792 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 53,055 psi | 83% | 2779 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,943 psi | 63% | 2575 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 37,797 psi | 59% | 2572 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 48,776 psi | 76% | 2723 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,688 psi | 75% | 2697 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,992 psi | 72% | 2687 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,185 psi | 83% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,702 psi | 73% | 2648 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,463 psi | 59% | 2566 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 52,866 psi | 83% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,294 psi | 68% | 2618 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 42,380 psi | 66% | 2667 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,450 psi | 60% | 2559 fps | 97% |
| Vihtavuori N150 | <<locked>> | 80% | 50,560 psi | 79% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,775 psi | 73% | 2703 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,592 psi | 56% | 2490 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 46,035 psi | 72% | 2707 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,260 psi | 58% | 2575 fps | 99.6% |
| Vihtavuori N560 | 62.8 gr | 84% | 41,611 psi | 65% | 2710 fps | 95% |
| Vihtavuori N565 | <<locked>> | 90% | 41,684 psi | 65% | 2697 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 98% | 47,776 psi | 75% | 2867 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,716 psi | 72% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,877 psi | 75% | 2772 fps | 99.4% |
| Winchester StaBALL HD | 59.1 gr | 80% | 29,370 psi | 46% | 2510 fps | 99.7% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,521 psi | 59% | 2539 fps | 95.6% |
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 75 powders for 7 mm Weath. Mag. loaded with the .284 | 160gr | Norma Tipstrike. Hodgdon Retumbo delivers the highest muzzle velocity at 3,048 fps; across all powders the maximum-charge window runs from 1,801 fps to 3,048 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 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 1:10.5 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Weath. Mag. with the .284 | 160gr | Norma Tipstrike 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.