Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 155gr | Frontier PH HPFB bullet and 74 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 IMR 7828 SSC.
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>> | 94% | 51,764 psi | 85% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 53,142 psi | 87% | 2917 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 53,809 psi | 88% | 3028 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 54,810 psi | 90% | 2877 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,853 psi | 88% | 2969 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 51,721 psi | 85% | 2969 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,296 psi | 76% | 2858 fps | 97.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,046 psi | 67% | 2815 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,244 psi | 89% | 2966 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,954 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 51,271 psi | 84% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,577 psi | 88% | 2959 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,100 psi | 90% | 3025 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,460 psi | 86% | 2943 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,576 psi | 85% | 2999 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,243 psi | 86% | 3028 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,041 psi | 89% | 3009 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,630 psi | 78% | 2930 fps | 97.9% |
| Bofors RP5 | <<locked>> | 96% | 55,100 psi | 90% | 3025 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 52,692 psi | 87% | 2864 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,952 psi | 84% | 2949 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 86% | 55,027 psi | 90% | 2969 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 54,331 psi | 89% | 2927 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 51,735 psi | 85% | 2907 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,317 psi | 89% | 2949 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,447 psi | 89% | 2894 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,691 psi | 83% | 3061 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 84% | 51,445 psi | 84% | 2946 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,869 psi | 61% | 1831 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,012 psi | 89% | 2904 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,954 psi | 89% | 2887 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 53,592 psi | 88% | 2907 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,040 psi | 87% | 2894 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 96% | 52,910 psi | 87% | 3002 fps | 98.4% |
| Lovex S065 | <<locked>> | 86% | 54,505 psi | 89% | 2884 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,736 psi | 87% | 2881 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,518 psi | 86% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 88% | 54,752 psi | 90% | 2956 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 36,593 psi | 60% | 2736 fps | 96.8% |
| Norma MRP | <<locked>> | 94% | 54,795 psi | 90% | 3048 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 51,895 psi | 85% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,606 psi | 88% | 3025 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 54,114 psi | 89% | 2959 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 51,619 psi | 85% | 2956 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 62% | 1877 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,476 psi | 89% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,185 psi | 87% | 2940 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,114 psi | 90% | 3025 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,097 psi | 84% | 3058 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 53,563 psi | 88% | 2864 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 51,895 psi | 85% | 2881 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 92% | 52,939 psi | 87% | 2946 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 84% | 52,692 psi | 87% | 2864 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,505 psi | 89% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,736 psi | 87% | 2881 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,085 psi | 90% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,998 psi | 89% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,722 psi | 88% | 2835 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,504 psi | 86% | 2940 fps | 99.1% |
| Somchem S355 | <<locked>> | 82% | 53,432 psi | 88% | 2861 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,461 psi | 88% | 2874 fps | 97.7% |
| Somchem S365 | <<locked>> | 88% | 51,880 psi | 85% | 2904 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,548 psi | 88% | 2920 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 54,621 psi | 90% | 2831 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,563 psi | 88% | 2890 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,837 psi | 87% | 2894 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 86% | 52,779 psi | 87% | 2897 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,853 psi | 90% | 2972 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,766 psi | 90% | 3041 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,317 psi | 89% | 3015 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,881 psi | 87% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,027 psi | 90% | 2969 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,765 psi | 87% | 3074 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,200 psi | 87% | 2910 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% | 32,227 psi | 53% | 2487 fps | 96.6% |
| Accurate 4350 | <<locked>> | 80% | 43,410 psi | 71% | 2749 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 46,557 psi | 76% | 2897 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 51,401 psi | 84% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,332 psi | 60% | 2615 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 42,279 psi | 69% | 2782 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 96% | 40,422 psi | 66% | 2733 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 92% | 31,749 psi | 52% | 2569 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,622 psi | 60% | 2618 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,524 psi | 68% | 2753 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,863 psi | 79% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,289 psi | 60% | 2612 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,811 psi | 60% | 2671 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,951 psi | 51% | 2520 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,790 psi | 47% | 2474 fps | 95.5% |
| Alliant Reloder-26 | 59.5 gr | 80% | 33,431 psi | 55% | 2648 fps | 98.4% |
| Bofors RP15 | <<locked>> | 86% | 36,521 psi | 60% | 2661 fps | 95.2% |
| Bofors RP30 | <<locked>> | 94% | 38,943 psi | 64% | 2753 fps | 95.5% |
| Bofors RP5 | <<locked>> | 84% | 36,811 psi | 60% | 2671 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 46,311 psi | 76% | 2749 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 38,812 psi | 64% | 2697 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 44,976 psi | 74% | 2795 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 47,747 psi | 78% | 2812 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 86% | 42,264 psi | 69% | 2730 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,353 psi | 73% | 2772 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,276 psi | 64% | 2638 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,390 psi | 60% | 2736 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 44,309 psi | 73% | 2818 fps | 98.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 46% | 1640 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,974 psi | 69% | 2684 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,761 psi | 78% | 2779 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 41,292 psi | 68% | 2694 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,019 psi | 72% | 2726 fps | 95.7% |
| IMR 7828 SSC | 61.2 gr | 88% | 40,567 psi | 67% | 2756 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 45,411 psi | 75% | 2730 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 43,714 psi | 72% | 2717 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 29,631 psi | 49% | 2418 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 41,771 psi | 69% | 2717 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 34,243 psi | 56% | 2677 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 33,504 psi | 55% | 2615 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 42,714 psi | 70% | 2736 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 40,103 psi | 66% | 2759 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 41,524 psi | 68% | 2730 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 88% | 35,795 psi | 59% | 2638 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,181 psi | 46% | 1677 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,792 psi | 83% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,120 psi | 71% | 2766 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,495 psi | 68% | 2782 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,257 psi | 55% | 2648 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 50,415 psi | 83% | 2815 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,118 psi | 66% | 2651 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 35,389 psi | 58% | 2592 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 46,311 psi | 76% | 2749 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,411 psi | 75% | 2730 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 43,714 psi | 72% | 2717 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,634 psi | 85% | 2874 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,792 psi | 83% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,396 psi | 73% | 2674 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,579 psi | 62% | 2648 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 50,328 psi | 83% | 2812 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,671 psi | 72% | 2700 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 39,494 psi | 65% | 2694 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,158 psi | 59% | 2582 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 48,138 psi | 79% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,121 psi | 72% | 2733 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 35,563 psi | 58% | 2562 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 43,497 psi | 71% | 2733 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 34,650 psi | 57% | 2595 fps | 99.2% |
| Vihtavuori N560 | <<locked>> | 86% | 41,539 psi | 68% | 2789 fps | 95% |
| Vihtavuori N565 | <<locked>> | 92% | 41,307 psi | 68% | 2772 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,076 psi | 71% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,208 psi | 74% | 2799 fps | 99% |
| Winchester StaBALL HD | 57.2 gr | 80% | 27,412 psi | 45% | 2523 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,768 psi | 62% | 2618 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 Blaser Mag. loaded with the .284 | 155gr | Frontier PH HPFB. Winchester StaBALL HD delivers the highest muzzle velocity at 3,074 fps; across all powders the maximum-charge window runs from 1,831 fps to 3,074 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 60–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.284" calls for a 1:9.5 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. Alliant Reloder-26, Winchester StaBALL HD, IMR 7828 SSC rank at the top here: for 7 mm Blaser Mag. with the .284 | 155gr | Frontier PH HPFB 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.