Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 157gr | CutEdge MTAC bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Ramshot Grand and Alliant Reloder-26.
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>> | 96% | 54,041 psi | 89% | 2904 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 52,011 psi | 85% | 2887 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 52,765 psi | 87% | 2999 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 54,143 psi | 89% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,214 psi | 87% | 2946 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 54,476 psi | 89% | 3005 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,368 psi | 74% | 2828 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,074 psi | 66% | 2785 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,071 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,287 psi | 87% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,143 psi | 89% | 2959 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,634 psi | 86% | 2933 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,085 psi | 89% | 2999 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,071 psi | 90% | 2969 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,879 psi | 84% | 2976 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 51,372 psi | 84% | 3002 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,011 psi | 87% | 2979 fps | 99.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,514 psi | 76% | 2900 fps | 97.8% |
| Bofors RP5 | <<locked>> | 96% | 54,085 psi | 89% | 2999 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 51,677 psi | 85% | 2835 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,038 psi | 82% | 2923 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 86% | 54,012 psi | 89% | 2943 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 53,417 psi | 88% | 2900 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 54,447 psi | 89% | 2943 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,388 psi | 88% | 2923 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,403 psi | 88% | 2867 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,676 psi | 82% | 3031 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 86% | 54,331 psi | 89% | 2979 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 60% | 1818 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,113 psi | 87% | 2877 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,359 psi | 88% | 2864 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 52,678 psi | 86% | 2881 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,417 psi | 86% | 2871 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 96% | 52,243 psi | 86% | 2979 fps | 98.4% |
| Lovex S065 | <<locked>> | 86% | 53,664 psi | 88% | 2861 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,100 psi | 90% | 2907 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,416 psi | 84% | 2864 fps | 100% |
| Norma 204 | <<locked>> | 88% | 53,824 psi | 88% | 2930 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 35,491 psi | 58% | 2703 fps | 96.6% |
| Norma MRP | <<locked>> | 94% | 53,766 psi | 88% | 3018 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 54,375 psi | 89% | 2927 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 52,620 psi | 86% | 2995 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 53,142 psi | 87% | 2930 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,520 psi | 90% | 2989 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,550 psi | 62% | 1864 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,693 psi | 88% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 52,040 psi | 85% | 2910 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,172 psi | 89% | 2995 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,125 psi | 82% | 3028 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 52,591 psi | 86% | 2838 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,520 psi | 90% | 2913 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 51,909 psi | 85% | 2917 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 84% | 51,677 psi | 85% | 2835 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,664 psi | 88% | 2861 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,100 psi | 90% | 2907 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,346 psi | 89% | 2900 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,040 psi | 87% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,910 psi | 87% | 2812 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,114 psi | 90% | 2969 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 52,518 psi | 86% | 2835 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,547 psi | 86% | 2848 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 54,433 psi | 89% | 2927 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 52,446 psi | 86% | 2890 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 53,795 psi | 88% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,808 psi | 87% | 2867 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,054 psi | 85% | 2871 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 86% | 51,967 psi | 85% | 2871 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,577 psi | 88% | 2943 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,780 psi | 88% | 3012 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,127 psi | 87% | 2986 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,214 psi | 86% | 2828 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,288 psi | 89% | 2946 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,011 psi | 85% | 3048 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 52,460 psi | 86% | 2887 fps | 99.1% |
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% | 30,879 psi | 51% | 2448 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 42,047 psi | 69% | 2713 fps | 99.9% |
| Accurate MAGPRO | 65.9 gr | 90% | 45,513 psi | 75% | 2864 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 50,734 psi | 83% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,913 psi | 62% | 2644 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 88% | 41,350 psi | 68% | 2753 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 96% | 39,697 psi | 65% | 2707 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 94% | 32,837 psi | 54% | 2595 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,576 psi | 85% | 2822 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,756 psi | 67% | 2726 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,847 psi | 77% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,811 psi | 62% | 2641 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 84% | 35,723 psi | 59% | 2635 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,849 psi | 49% | 2480 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 27,905 psi | 46% | 2438 fps | 95.2% |
| Alliant Reloder-26 | 59.3 gr | 80% | 32,416 psi | 53% | 2612 fps | 98.2% |
| Bofors RP15 | <<locked>> | 86% | 35,462 psi | 58% | 2625 fps | 95% |
| Bofors RP30 | <<locked>> | 94% | 37,884 psi | 62% | 2717 fps | 95.2% |
| Bofors RP5 | <<locked>> | 84% | 35,723 psi | 59% | 2635 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,484 psi | 75% | 2726 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 37,855 psi | 62% | 2667 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 44,179 psi | 73% | 2769 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 46,833 psi | 77% | 2785 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 88% | 44,280 psi | 73% | 2759 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,439 psi | 71% | 2743 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,218 psi | 63% | 2608 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 35,563 psi | 58% | 2707 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 43,308 psi | 71% | 2785 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 45% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,046 psi | 67% | 2654 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,094 psi | 77% | 2756 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 40,350 psi | 66% | 2667 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,323 psi | 71% | 2703 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 39,595 psi | 65% | 2723 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 44,309 psi | 73% | 2700 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 42,583 psi | 70% | 2687 fps | 98.7% |
| Lovex S071 | <<locked>> | 84% | 30,414 psi | 50% | 2434 fps | 96% |
| Norma 204 | <<locked>> | 80% | 40,799 psi | 67% | 2687 fps | 96.6% |
| Norma 217 | <<locked>> | 98% | 33,098 psi | 54% | 2638 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 32,416 psi | 53% | 2575 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 41,611 psi | 68% | 2707 fps | 99.8% |
| Ramshot Grand | 62.8 gr | 88% | 39,305 psi | 65% | 2733 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 40,480 psi | 66% | 2700 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 34,766 psi | 57% | 2605 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,949 psi | 46% | 1663 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,763 psi | 82% | 2890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,177 psi | 69% | 2740 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,509 psi | 67% | 2753 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 32,372 psi | 53% | 2612 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 49,139 psi | 81% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 39,334 psi | 65% | 2625 fps | 95% |
| Rottweil R 905 | <<locked>> | 82% | 37,028 psi | 61% | 2625 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,484 psi | 75% | 2726 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,309 psi | 73% | 2700 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 42,583 psi | 70% | 2687 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,618 psi | 83% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,806 psi | 82% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,526 psi | 71% | 2648 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,695 psi | 60% | 2618 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 49,182 psi | 81% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 42,902 psi | 70% | 2674 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 38,334 psi | 63% | 2661 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,998 psi | 57% | 2546 fps | 96% |
| Vihtavuori N150 | <<locked>> | 80% | 47,050 psi | 77% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,062 psi | 71% | 2703 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 34,708 psi | 57% | 2533 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 42,409 psi | 70% | 2703 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 33,518 psi | 55% | 2562 fps | 99% |
| Vihtavuori N560 | <<locked>> | 88% | 43,584 psi | 72% | 2825 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 92% | 40,132 psi | 66% | 2736 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,163 psi | 69% | 2667 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,179 psi | 73% | 2769 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,324 psi | 43% | 2477 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,796 psi | 60% | 2589 fps | 95.5% |
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 Blaser Mag. loaded with the .284 | 157gr | CutEdge MTAC. Winchester StaBALL HD delivers the highest muzzle velocity at 3,048 fps; across all powders the maximum-charge window runs from 1,818 fps to 3,048 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 (420 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 157.0 gr projectile in 0.284" calls for a 1:9.0 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. Accurate MAGPRO, Ramshot Grand, Alliant Reloder-26 rank at the top here: for 7 mm Blaser Mag. with the .284 | 157gr | CutEdge MTAC 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.