Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 152gr | Hasler ARIETE bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Accurate MAGPRO.
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% | 52,344 psi | 86% | 2920 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,099 psi | 89% | 2963 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,636 psi | 90% | 3068 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 52,837 psi | 87% | 2877 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,071 psi | 90% | 3015 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 96% | 52,852 psi | 87% | 3015 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,034 psi | 72% | 2835 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,812 psi | 64% | 2785 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 51,750 psi | 85% | 2953 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,664 psi | 88% | 2900 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,071 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,417 psi | 86% | 2979 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,650 psi | 90% | 3005 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,388 psi | 86% | 3012 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,258 psi | 87% | 2989 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,965 psi | 80% | 2982 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,156 psi | 87% | 3074 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,969 psi | 90% | 3051 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 54,273 psi | 89% | 2910 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,846 psi | 74% | 2904 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 52,388 psi | 86% | 3012 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 53,780 psi | 88% | 2910 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,515 psi | 80% | 2930 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 54,810 psi | 90% | 2936 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,460 psi | 86% | 2959 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 51,996 psi | 85% | 2917 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 94% | 52,866 psi | 87% | 2953 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,851 psi | 85% | 2936 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,793 psi | 85% | 2887 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,080 psi | 79% | 3038 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 52,605 psi | 86% | 2995 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,535 psi | 60% | 1844 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 51,721 psi | 85% | 2894 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,054 psi | 85% | 2881 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,462 psi | 89% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,259 psi | 89% | 2940 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 54,012 psi | 89% | 3048 fps | 98.3% |
| Lovex S065 | <<locked>> | 86% | 52,301 psi | 86% | 2877 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,650 psi | 88% | 2927 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,777 psi | 82% | 2877 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 52,286 psi | 86% | 2943 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 51,938 psi | 85% | 3031 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 52,794 psi | 87% | 2946 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,723 psi | 90% | 3071 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 51,590 psi | 85% | 2946 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,620 psi | 86% | 2999 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,376 psi | 61% | 1890 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,549 psi | 90% | 2920 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,909 psi | 85% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,925 psi | 89% | 2982 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,460 psi | 86% | 3012 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,182 psi | 79% | 3031 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 54,679 psi | 90% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,069 psi | 87% | 2927 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 53,911 psi | 89% | 2989 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 53,780 psi | 88% | 2910 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,301 psi | 86% | 2877 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,650 psi | 88% | 2927 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,852 psi | 87% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,011 psi | 85% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,590 psi | 85% | 2831 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,461 psi | 88% | 2986 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,636 psi | 90% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,549 psi | 90% | 2920 fps | 97.6% |
| Somchem S365 | <<locked>> | 90% | 52,649 psi | 86% | 2946 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,462 psi | 89% | 2963 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 52,373 psi | 86% | 2831 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,868 psi | 90% | 2940 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,809 psi | 88% | 2940 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 53,940 psi | 89% | 2946 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,837 psi | 85% | 2959 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,054 psi | 85% | 3025 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,343 psi | 84% | 2995 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,447 psi | 89% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,736 psi | 87% | 2963 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,403 psi | 88% | 3120 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,621 psi | 90% | 2959 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% | 29,907 psi | 49% | 2454 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 40,857 psi | 67% | 2730 fps | 99.6% |
| Accurate MAGPRO | 67.2 gr | 92% | 47,355 psi | 78% | 2940 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 49,458 psi | 81% | 2822 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,407 psi | 65% | 2717 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 90% | 42,975 psi | 71% | 2822 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 41,046 psi | 67% | 2769 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 33,982 psi | 56% | 2657 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,014 psi | 61% | 2654 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,430 psi | 83% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,479 psi | 65% | 2740 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,281 psi | 74% | 2864 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,637 psi | 60% | 2648 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,043 psi | 61% | 2703 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,993 psi | 48% | 2493 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 28,892 psi | 47% | 2500 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,212 psi | 51% | 2615 fps | 97.3% |
| Bofors RP15 | <<locked>> | 88% | 36,724 psi | 60% | 2694 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,981 psi | 84% | 2861 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,146 psi | 64% | 2782 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 37,043 psi | 61% | 2703 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,280 psi | 73% | 2740 fps | 98.2% |
| Hodgdon H1000 | <<locked>> | 94% | 39,334 psi | 65% | 2736 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 51,256 psi | 84% | 2881 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,830 psi | 70% | 2782 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 45,774 psi | 75% | 2802 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 90% | 46,050 psi | 76% | 2831 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,136 psi | 74% | 2812 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,130 psi | 61% | 2625 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,651 psi | 60% | 2769 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 41,872 psi | 69% | 2795 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 45% | 1647 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,103 psi | 66% | 2671 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,905 psi | 75% | 2772 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 39,088 psi | 64% | 2677 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,802 psi | 74% | 2769 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 90% | 41,133 psi | 68% | 2795 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 43,352 psi | 71% | 2720 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 41,597 psi | 68% | 2703 fps | 98.2% |
| Lovex S071 | <<locked>> | 86% | 31,343 psi | 51% | 2497 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 39,769 psi | 65% | 2700 fps | 95.8% |
| Norma MRP | 58.8 gr | 82% | 33,721 psi | 55% | 2648 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 40,538 psi | 67% | 2723 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 40,799 psi | 67% | 2802 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 39,436 psi | 65% | 2717 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 36,230 psi | 59% | 2674 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,934 psi | 46% | 1690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,097 psi | 84% | 2864 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,153 psi | 79% | 2910 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,770 psi | 67% | 2749 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,233 psi | 64% | 2759 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,489 psi | 55% | 2677 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 47,935 psi | 79% | 2808 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 40,915 psi | 67% | 2697 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 38,421 psi | 63% | 2694 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,280 psi | 73% | 2740 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,352 psi | 71% | 2720 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 41,597 psi | 68% | 2703 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,443 psi | 81% | 2867 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,820 psi | 80% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,366 psi | 70% | 2661 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,072 psi | 63% | 2687 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,051 psi | 79% | 2805 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,527 psi | 73% | 2740 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 37,159 psi | 61% | 2677 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 34,040 psi | 56% | 2559 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 45,992 psi | 76% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,003 psi | 69% | 2720 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 35,969 psi | 59% | 2598 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 41,350 psi | 68% | 2723 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 32,300 psi | 53% | 2569 fps | 98.4% |
| Vihtavuori N560 | 64.5 gr | 90% | 45,136 psi | 74% | 2894 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 94% | 41,481 psi | 68% | 2805 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,915 psi | 67% | 2680 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,047 psi | 71% | 2785 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,541 psi | 42% | 2477 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,189 psi | 63% | 2654 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 77 powders for 7 mm Blaser Mag. loaded with the .284 | 152gr | Hasler ARIETE. Winchester StaBALL HD delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,844 fps to 3,120 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 152.0 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. Norma MRP, Vihtavuori N560, Accurate MAGPRO rank at the top here: for 7 mm Blaser Mag. with the .284 | 152gr | Hasler ARIETE 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.