Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 160gr | Winchester FailSafe bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD and Hodgdon Retumbo.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 51,387 psi | 84% | 2838 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,692 psi | 87% | 2871 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,650 psi | 88% | 2992 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 53,359 psi | 88% | 2927 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 54,897 psi | 90% | 2992 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,269 psi | 81% | 2890 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,816 psi | 72% | 2851 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,737 psi | 88% | 2927 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,577 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,723 psi | 90% | 2943 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,098 psi | 87% | 2917 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,911 psi | 90% | 2989 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,533 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,692 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,446 psi | 86% | 2989 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,258 psi | 87% | 2894 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 53,838 psi | 88% | 2969 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,242 psi | 84% | 2959 fps | 98.9% |
| Bofors RP5 | <<locked>> | 94% | 54,911 psi | 90% | 2989 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 51,808 psi | 85% | 2818 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,143 psi | 89% | 2976 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 54,418 psi | 89% | 2927 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,447 psi | 88% | 2881 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 54,897 psi | 90% | 2930 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,621 psi | 88% | 2907 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,882 psi | 88% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,172 psi | 89% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,578 psi | 90% | 2963 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,028 psi | 61% | 1821 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,243 psi | 87% | 2858 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,214 psi | 87% | 2841 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 53,055 psi | 87% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,402 psi | 86% | 2854 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 94% | 52,634 psi | 86% | 2966 fps | 98.7% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,421 psi | 65% | 2749 fps | 96% |
| Lovex S065 | <<locked>> | 84% | 53,809 psi | 88% | 2841 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,127 psi | 86% | 2838 fps | 99.9% |
| Lovex S071 | <<locked>> | 98% | 52,634 psi | 86% | 2858 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,969 psi | 89% | 2913 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,349 psi | 65% | 2772 fps | 98.3% |
| Norma MRP | <<locked>> | 92% | 54,708 psi | 90% | 3009 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,882 psi | 90% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,345 psi | 88% | 2989 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 53,519 psi | 88% | 2913 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,532 psi | 85% | 2920 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,942 psi | 62% | 1864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,736 psi | 87% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,520 psi | 90% | 2976 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,056 psi | 90% | 3091 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,850 psi | 82% | 2972 fps | 97.6% |
| Rottweil R 904 | <<locked>> | 90% | 54,766 psi | 90% | 2897 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 52,562 psi | 86% | 2907 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 82% | 51,808 psi | 85% | 2818 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,809 psi | 88% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,127 psi | 86% | 2838 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,866 psi | 87% | 2792 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,141 psi | 86% | 2900 fps | 99.4% |
| Somchem S361 | <<locked>> | 88% | 52,736 psi | 87% | 2835 fps | 98% |
| Somchem S365 | <<locked>> | 86% | 51,634 psi | 85% | 2858 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,127 psi | 87% | 2881 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 53,940 psi | 89% | 2785 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,011 psi | 87% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,750 psi | 87% | 2861 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 84% | 52,228 psi | 86% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,665 psi | 90% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,578 psi | 90% | 3005 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 98% | 54,331 psi | 89% | 2982 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,908 psi | 84% | 2976 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,373 psi | 86% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,418 psi | 89% | 2927 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,606 psi | 88% | 3038 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,794 psi | 87% | 2871 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 34,418 psi | 56% | 2510 fps | 97.8% |
| Accurate 4350 | <<locked>> | 80% | 46,122 psi | 76% | 2762 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,308 psi | 71% | 2799 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 38,450 psi | 63% | 2638 fps | 96.5% |
| ADI AR 2213 | <<locked>> | 84% | 39,204 psi | 64% | 2684 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 94% | 40,234 psi | 66% | 2703 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 90% | 31,691 psi | 52% | 2546 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,812 psi | 64% | 2641 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,121 psi | 72% | 2769 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,995 psi | 84% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,464 psi | 63% | 2635 fps | 96.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,229 psi | 56% | 2572 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,924 psi | 54% | 2536 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,790 psi | 47% | 2448 fps | 96.3% |
| Alliant Reloder-26 | 61.3 gr | 80% | 35,955 psi | 59% | 2677 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 50,096 psi | 82% | 2835 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 36,477 psi | 60% | 2628 fps | 95.8% |
| Bofors RP30 | <<locked>> | 90% | 36,535 psi | 60% | 2661 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 34,229 psi | 56% | 2572 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,631 psi | 80% | 2762 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 36,071 psi | 59% | 2608 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 47,747 psi | 78% | 2812 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,212 psi | 82% | 2828 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 41,887 psi | 69% | 2694 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,118 psi | 68% | 2677 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,597 psi | 68% | 2648 fps | 100% |
| Hodgdon Retumbo | 61.7 gr | 86% | 34,142 psi | 56% | 2648 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 47,224 psi | 78% | 2838 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,746 psi | 46% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,193 psi | 73% | 2697 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,024 psi | 82% | 2789 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,787 psi | 72% | 2707 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,886 psi | 67% | 2635 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 40,234 psi | 66% | 2720 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,912 psi | 61% | 2687 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,543 psi | 78% | 2736 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,861 psi | 75% | 2730 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 29,675 psi | 49% | 2388 fps | 96% |
| Norma 204 | <<locked>> | 80% | 44,063 psi | 72% | 2733 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 32,300 psi | 53% | 2592 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 35,694 psi | 59% | 2638 fps | 97.2% |
| Norma URP | <<locked>> | 80% | 45,005 psi | 74% | 2746 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,202 psi | 61% | 2664 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,874 psi | 72% | 2743 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 33,112 psi | 54% | 2543 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 47% | 1667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,948 psi | 75% | 2782 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,106 psi | 72% | 2799 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 31,009 psi | 51% | 2552 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,873 psi | 70% | 2835 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 39,813 psi | 65% | 2618 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 37,652 psi | 62% | 2615 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 80% | 48,631 psi | 80% | 2762 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,543 psi | 78% | 2736 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,861 psi | 75% | 2730 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,572 psi | 76% | 2687 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,333 psi | 61% | 2608 fps | 96.3% |
| Somchem S361 | <<locked>> | 80% | 40,422 psi | 66% | 2605 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 42,221 psi | 69% | 2707 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,305 psi | 63% | 2602 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 80% | 50,415 psi | 83% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,615 psi | 77% | 2743 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,199 psi | 55% | 2474 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,890 psi | 75% | 2746 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,927 psi | 61% | 2612 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 41,321 psi | 68% | 2753 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 88% | 38,740 psi | 64% | 2684 fps | 95% |
| Vihtavuori N568 | <<locked>> | 96% | 44,222 psi | 73% | 2848 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,556 psi | 75% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,747 psi | 78% | 2812 fps | 99.6% |
| Winchester StaBALL HD | 58.9 gr | 80% | 29,240 psi | 48% | 2556 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,983 psi | 57% | 2523 fps | 95.3% |
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 Blaser Mag. loaded with the .284 | 160gr | Winchester FailSafe. Hodgdon Retumbo delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,094 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 (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.5 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. Alliant Reloder-26, Winchester StaBALL HD, Hodgdon Retumbo rank at the top here: for 7 mm Blaser Mag. with the .284 | 160gr | Winchester FailSafe 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.