Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 160gr | Prvi Partizan PSP BT bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Hodgdon Retumbo and Winchester StaBALL HD.
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% | 51,474 psi | 85% | 2841 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,765 psi | 87% | 2871 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,693 psi | 88% | 2992 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 53,664 psi | 88% | 2933 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 54,940 psi | 90% | 2992 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,298 psi | 81% | 2890 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,048 psi | 72% | 2854 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,824 psi | 88% | 2927 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,824 psi | 88% | 2927 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,867 psi | 88% | 2930 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,781 psi | 90% | 2943 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,185 psi | 87% | 2920 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,998 psi | 90% | 2989 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,620 psi | 86% | 2907 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,982 psi | 85% | 2966 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,504 psi | 86% | 2989 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,272 psi | 87% | 2894 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 54,128 psi | 89% | 2976 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,532 psi | 85% | 2966 fps | 99% |
| Bofors RP5 | <<locked>> | 94% | 54,998 psi | 90% | 2989 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 51,866 psi | 85% | 2818 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,433 psi | 89% | 2979 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 54,520 psi | 90% | 2930 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,505 psi | 88% | 2881 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 54,940 psi | 90% | 2930 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,911 psi | 89% | 2913 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,998 psi | 89% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,476 psi | 89% | 3097 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,882 psi | 90% | 2966 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 61% | 1821 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,345 psi | 88% | 2861 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,272 psi | 87% | 2841 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 53,374 psi | 88% | 2867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,678 psi | 86% | 2858 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 94% | 52,939 psi | 87% | 2972 fps | 98.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,479 psi | 65% | 2753 fps | 96.1% |
| Lovex S065 | <<locked>> | 84% | 53,867 psi | 88% | 2841 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,228 psi | 86% | 2841 fps | 99.9% |
| Lovex S071 | <<locked>> | 98% | 52,721 psi | 87% | 2861 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,273 psi | 89% | 2917 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,595 psi | 65% | 2779 fps | 98.4% |
| Norma MRP | <<locked>> | 92% | 54,795 psi | 90% | 3012 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,940 psi | 90% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,359 psi | 88% | 2989 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 53,824 psi | 88% | 2917 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,590 psi | 85% | 2923 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,855 psi | 62% | 1864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,779 psi | 87% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,839 psi | 90% | 2982 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,100 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,850 psi | 82% | 2972 fps | 97.6% |
| Rottweil R 904 | <<locked>> | 90% | 54,795 psi | 90% | 2900 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 52,605 psi | 86% | 2907 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 82% | 51,866 psi | 85% | 2818 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,867 psi | 88% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,228 psi | 86% | 2841 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,142 psi | 87% | 2795 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,185 psi | 86% | 2904 fps | 99.4% |
| Somchem S361 | <<locked>> | 88% | 52,779 psi | 87% | 2835 fps | 98.1% |
| Somchem S365 | <<locked>> | 86% | 51,692 psi | 85% | 2861 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,156 psi | 87% | 2881 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 54,027 psi | 89% | 2789 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,069 psi | 87% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,779 psi | 87% | 2864 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 84% | 52,272 psi | 86% | 2854 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,998 psi | 90% | 2936 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,650 psi | 90% | 3005 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 98% | 54,360 psi | 89% | 2982 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,242 psi | 84% | 2982 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,460 psi | 86% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,737 psi | 90% | 2930 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,693 psi | 88% | 3041 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,837 psi | 87% | 2874 fps | 99.4% |
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% | 34,476 psi | 57% | 2513 fps | 97.8% |
| Accurate 4350 | <<locked>> | 80% | 46,195 psi | 76% | 2766 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,366 psi | 71% | 2799 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 38,508 psi | 63% | 2638 fps | 96.5% |
| ADI AR 2213 | <<locked>> | 84% | 39,247 psi | 64% | 2684 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 92% | 37,739 psi | 62% | 2644 fps | 95% |
| ADI AR 2225 | <<locked>> | 90% | 31,865 psi | 52% | 2549 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,870 psi | 64% | 2641 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,870 psi | 64% | 2641 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,193 psi | 73% | 2769 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,068 psi | 84% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,522 psi | 63% | 2635 fps | 96.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,316 psi | 56% | 2575 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,982 psi | 54% | 2539 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,834 psi | 47% | 2451 fps | 96.3% |
| Alliant Reloder-26 | 61.5 gr | 80% | 36,172 psi | 59% | 2680 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 50,096 psi | 82% | 2835 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 36,535 psi | 60% | 2628 fps | 95.9% |
| Bofors RP30 | <<locked>> | 90% | 36,593 psi | 60% | 2661 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 34,316 psi | 56% | 2575 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,704 psi | 80% | 2766 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 36,129 psi | 59% | 2608 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 47,805 psi | 78% | 2815 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,270 psi | 83% | 2828 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 41,930 psi | 69% | 2694 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,162 psi | 68% | 2677 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,684 psi | 68% | 2651 fps | 100% |
| Hodgdon Retumbo | 61.8 gr | 86% | 34,185 psi | 56% | 2648 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 47,326 psi | 78% | 2841 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,876 psi | 46% | 1631 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,251 psi | 73% | 2700 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,125 psi | 82% | 2792 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,859 psi | 72% | 2710 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,930 psi | 67% | 2635 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 40,292 psi | 66% | 2723 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,970 psi | 61% | 2690 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 47,630 psi | 78% | 2740 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,919 psi | 75% | 2730 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 29,733 psi | 49% | 2388 fps | 96.1% |
| Norma 204 | <<locked>> | 80% | 44,135 psi | 72% | 2736 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 32,474 psi | 53% | 2598 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 35,911 psi | 59% | 2644 fps | 97.3% |
| Norma URP | <<locked>> | 80% | 45,121 psi | 74% | 2749 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,289 psi | 61% | 2664 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,976 psi | 72% | 2746 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 33,315 psi | 55% | 2546 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 47% | 1667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,006 psi | 76% | 2782 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,208 psi | 73% | 2802 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 31,067 psi | 51% | 2556 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,917 psi | 70% | 2838 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 39,871 psi | 65% | 2621 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 37,724 psi | 62% | 2618 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 80% | 48,704 psi | 80% | 2766 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,630 psi | 78% | 2740 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,919 psi | 75% | 2730 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,644 psi | 77% | 2687 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,391 psi | 61% | 2612 fps | 96.3% |
| Somchem S361 | <<locked>> | 80% | 40,451 psi | 66% | 2605 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 42,293 psi | 69% | 2707 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,392 psi | 63% | 2605 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 80% | 50,473 psi | 83% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,702 psi | 77% | 2743 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,272 psi | 55% | 2477 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,977 psi | 75% | 2746 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,173 psi | 61% | 2618 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 84% | 41,365 psi | 68% | 2753 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 88% | 38,812 psi | 64% | 2687 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 96% | 44,469 psi | 73% | 2851 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,614 psi | 75% | 2703 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,805 psi | 78% | 2815 fps | 99.6% |
| Winchester StaBALL HD | 59 gr | 80% | 29,327 psi | 48% | 2559 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,027 psi | 57% | 2526 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 73 powders for 7 mm Blaser Mag. loaded with the .284 | 160gr | Prvi Partizan PSP BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,097 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for 7 mm Blaser Mag. with the .284 | 160gr | Prvi Partizan PSP BT 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.