Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 170gr | Hammer HHT 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, Vihtavuori N560 and Norma MRP.
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% | 53,040 psi | 87% | 2769 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 54,563 psi | 90% | 2799 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 54,273 psi | 89% | 2917 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 92% | 51,387 psi | 84% | 2858 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 90% | 51,663 psi | 85% | 2802 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 94% | 53,011 psi | 87% | 2864 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,514 psi | 78% | 2762 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,076 psi | 69% | 2726 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 52,141 psi | 86% | 2802 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 51,880 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 52,707 psi | 87% | 2815 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,853 psi | 90% | 2848 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 52,910 psi | 87% | 2861 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 53,853 psi | 88% | 2828 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,084 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,940 psi | 89% | 2917 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,100 psi | 90% | 2828 fps | 96.7% |
| Bofors RP15 | <<locked>> | 96% | 51,909 psi | 85% | 2844 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,211 psi | 81% | 2835 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 52,910 psi | 87% | 2861 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 53,838 psi | 88% | 2749 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,170 psi | 86% | 2844 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 52,620 psi | 86% | 2799 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 52,141 psi | 86% | 2759 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 52,895 psi | 87% | 2799 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 51,851 psi | 85% | 2785 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 52,185 psi | 86% | 2726 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,982 psi | 85% | 2956 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 52,634 psi | 86% | 2835 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 61% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,100 psi | 90% | 2789 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,100 psi | 90% | 2769 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 55,042 psi | 90% | 2795 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,389 psi | 89% | 2789 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 96% | 54,389 psi | 89% | 2897 fps | 99.1% |
| Lovex S065 | <<locked>> | 84% | 52,460 psi | 86% | 2723 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 53,882 psi | 88% | 2766 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,143 psi | 89% | 2785 fps | 100% |
| Norma 204 | <<locked>> | 86% | 52,489 psi | 86% | 2789 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 37,782 psi | 62% | 2654 fps | 98.1% |
| Norma MRP | <<locked>> | 92% | 52,475 psi | 86% | 2877 fps | 100% |
| Norma URP | <<locked>> | 86% | 53,156 psi | 87% | 2785 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,926 psi | 90% | 2917 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 51,996 psi | 85% | 2792 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 53,011 psi | 87% | 2848 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 62% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,418 psi | 89% | 2822 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 52,605 psi | 86% | 2851 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,533 psi | 86% | 2956 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,471 psi | 78% | 2841 fps | 97.2% |
| Rottweil R 903 | <<locked>> | 82% | 55,013 psi | 90% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 53,113 psi | 87% | 2772 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 54,244 psi | 89% | 2835 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 53,838 psi | 88% | 2749 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 52,460 psi | 86% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 53,882 psi | 88% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,897 psi | 90% | 2618 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,882 psi | 90% | 2723 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,809 psi | 88% | 2831 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 54,694 psi | 90% | 2743 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,418 psi | 89% | 2766 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 53,243 psi | 87% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,708 psi | 90% | 2808 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 52,446 psi | 86% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,868 psi | 90% | 2776 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,172 psi | 89% | 2789 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,201 psi | 89% | 2785 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 52,866 psi | 87% | 2808 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 52,417 psi | 86% | 2874 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 98% | 52,112 psi | 86% | 2854 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,718 psi | 80% | 2848 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,172 psi | 89% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 52,881 psi | 87% | 2805 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,969 psi | 90% | 2966 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,592 psi | 90% | 2802 fps | 99.6% |
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% | 33,257 psi | 55% | 2405 fps | 97.7% |
| Accurate 4350 | <<locked>> | 80% | 44,657 psi | 73% | 2644 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 38,305 psi | 63% | 2615 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 86% | 41,684 psi | 68% | 2677 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 37,289 psi | 61% | 2526 fps | 96.4% |
| ADI AR 2213 | <<locked>> | 84% | 37,927 psi | 62% | 2569 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 94% | 38,827 psi | 64% | 2585 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 90% | 30,676 psi | 50% | 2438 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,666 psi | 62% | 2530 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,786 psi | 70% | 2651 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,081 psi | 81% | 2759 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,318 psi | 61% | 2523 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 32,996 psi | 54% | 2461 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,821 psi | 52% | 2431 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,862 psi | 46% | 2343 fps | 96.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,534 psi | 57% | 2562 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 48,718 psi | 80% | 2717 fps | 95.1% |
| Bofors RP15 | <<locked>> | 84% | 35,172 psi | 58% | 2513 fps | 95.7% |
| Bofors RP30 | <<locked>> | 90% | 35,157 psi | 58% | 2546 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 32,996 psi | 54% | 2461 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 47,500 psi | 78% | 2648 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 37,188 psi | 61% | 2549 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 46,137 psi | 76% | 2690 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 48,762 psi | 80% | 2703 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 40,553 psi | 67% | 2575 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 84% | 39,769 psi | 65% | 2559 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,263 psi | 66% | 2536 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 32,909 psi | 54% | 2530 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 45,527 psi | 75% | 2717 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 46% | 1552 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,989 psi | 71% | 2582 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,733 psi | 80% | 2667 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 42,453 psi | 70% | 2592 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 39,740 psi | 65% | 2523 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 86% | 39,001 psi | 64% | 2605 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 46,398 psi | 76% | 2621 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 44,759 psi | 73% | 2615 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 28,631 psi | 47% | 2287 fps | 96% |
| Norma 204 | <<locked>> | 80% | 42,844 psi | 70% | 2618 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 31,096 psi | 51% | 2484 fps | 95.4% |
| Norma MRP | 55.2 gr | 80% | 34,548 psi | 57% | 2530 fps | 97.1% |
| Norma URP | <<locked>> | 80% | 43,801 psi | 72% | 2631 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 38,551 psi | 63% | 2612 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 42,627 psi | 70% | 2631 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 32,010 psi | 53% | 2434 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 47% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,440 psi | 73% | 2664 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,627 psi | 70% | 2680 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 31,923 psi | 52% | 2507 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 40,872 psi | 67% | 2710 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 51,605 psi | 85% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 38,609 psi | 63% | 2503 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 36,579 psi | 60% | 2507 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 47,500 psi | 78% | 2648 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,398 psi | 76% | 2621 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 44,759 psi | 73% | 2615 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,779 psi | 85% | 2575 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,455 psi | 75% | 2572 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,274 psi | 60% | 2503 fps | 96.3% |
| Somchem S355 | <<locked>> | 80% | 51,372 psi | 84% | 2694 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 41,872 psi | 69% | 2546 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 40,741 psi | 67% | 2592 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,043 psi | 61% | 2490 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 80% | 49,240 psi | 81% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,310 psi | 74% | 2628 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,155 psi | 53% | 2369 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 44,541 psi | 73% | 2631 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 35,708 psi | 59% | 2503 fps | 99.7% |
| Vihtavuori N560 | 57.9 gr | 84% | 39,856 psi | 65% | 2635 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 90% | 39,813 psi | 65% | 2625 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 96% | 42,337 psi | 70% | 2723 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,208 psi | 73% | 2589 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,354 psi | 76% | 2694 fps | 99.5% |
| Winchester StaBALL HD | 54.6 gr | 80% | 28,253 psi | 46% | 2448 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 33,852 psi | 56% | 2418 fps | 95.2% |
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 Blaser Mag. loaded with the .284 | 170gr | Hammer HHT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,966 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,966 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 (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.284" calls for a 1:8.0 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm Blaser Mag. with the .284 | 170gr | Hammer HHT 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.