Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 160gr | North Fork FPS bullet and 72 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>> | 94% | 54,969 psi | 90% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,750 psi | 87% | 2871 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,432 psi | 88% | 2989 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 53,432 psi | 88% | 2927 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 54,708 psi | 90% | 2989 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,124 psi | 81% | 2884 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,874 psi | 72% | 2851 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,809 psi | 88% | 2927 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,621 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,520 psi | 90% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,171 psi | 87% | 2920 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,723 psi | 90% | 2986 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,605 psi | 86% | 2907 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,764 psi | 85% | 2963 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,504 psi | 86% | 2989 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,301 psi | 88% | 2894 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 53,911 psi | 89% | 2969 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,343 psi | 84% | 2959 fps | 98.9% |
| Bofors RP5 | <<locked>> | 94% | 54,723 psi | 90% | 2986 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 51,866 psi | 85% | 2818 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,244 psi | 89% | 2976 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 54,244 psi | 89% | 2923 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,505 psi | 88% | 2881 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 54,723 psi | 90% | 2927 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,679 psi | 88% | 2907 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,969 psi | 89% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,230 psi | 89% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,636 psi | 90% | 2963 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,057 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% | 53,127 psi | 87% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,475 psi | 86% | 2854 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 94% | 52,721 psi | 87% | 2966 fps | 98.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,291 psi | 65% | 2746 fps | 96% |
| Lovex S065 | <<locked>> | 84% | 53,853 psi | 88% | 2841 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 51,953 psi | 85% | 2835 fps | 99.9% |
| Lovex S071 | <<locked>> | 98% | 52,721 psi | 87% | 2861 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,012 psi | 89% | 2913 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,407 psi | 65% | 2772 fps | 98.3% |
| Norma MRP | <<locked>> | 92% | 54,549 psi | 90% | 3005 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,650 psi | 90% | 2907 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,113 psi | 87% | 2986 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 53,592 psi | 88% | 2913 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,372 psi | 84% | 2917 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,956 psi | 62% | 1864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,562 psi | 86% | 2890 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,607 psi | 90% | 2979 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,868 psi | 90% | 3087 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,661 psi | 82% | 2969 fps | 97.5% |
| Rottweil R 904 | <<locked>> | 90% | 54,839 psi | 90% | 2900 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 90% | 52,634 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% | 53,853 psi | 88% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 51,953 psi | 85% | 2835 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,953 psi | 87% | 2792 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,214 psi | 86% | 2900 fps | 99.4% |
| Somchem S361 | <<locked>> | 88% | 52,591 psi | 86% | 2831 fps | 98% |
| Somchem S365 | <<locked>> | 86% | 51,677 psi | 85% | 2858 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,200 psi | 87% | 2881 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 53,737 psi | 88% | 2782 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,055 psi | 87% | 2848 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,547 psi | 86% | 2858 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 84% | 52,272 psi | 86% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,737 psi | 90% | 2930 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,418 psi | 89% | 3002 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 98% | 54,389 psi | 89% | 2986 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,010 psi | 84% | 2979 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,228 psi | 86% | 2802 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,491 psi | 89% | 2927 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,679 psi | 88% | 3041 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,852 psi | 87% | 2874 fps | 99.3% |
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% | 34,316 psi | 56% | 2510 fps | 97.8% |
| Accurate 4350 | <<locked>> | 80% | 45,934 psi | 75% | 2759 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,352 psi | 71% | 2799 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 38,319 psi | 63% | 2635 fps | 96.4% |
| ADI AR 2213 | <<locked>> | 84% | 39,073 psi | 64% | 2680 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 94% | 40,306 psi | 66% | 2703 fps | 96% |
| ADI AR 2225 | <<locked>> | 90% | 31,734 psi | 52% | 2546 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,667 psi | 63% | 2635 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,961 psi | 72% | 2766 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,792 psi | 83% | 2881 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,319 psi | 63% | 2631 fps | 96.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,127 psi | 56% | 2569 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,967 psi | 54% | 2539 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,689 psi | 47% | 2444 fps | 96.2% |
| Alliant Reloder-26 | 61.3 gr | 80% | 35,969 psi | 59% | 2677 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,937 psi | 82% | 2831 fps | 95.2% |
| Bofors RP15 | <<locked>> | 84% | 36,332 psi | 60% | 2621 fps | 95.8% |
| Bofors RP30 | <<locked>> | 90% | 36,564 psi | 60% | 2661 fps | 95.2% |
| Bofors RP5 | <<locked>> | 80% | 34,127 psi | 56% | 2569 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 48,689 psi | 80% | 2762 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 90% | 38,566 psi | 63% | 2667 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 47,587 psi | 78% | 2812 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,009 psi | 82% | 2822 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 41,742 psi | 69% | 2690 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,973 psi | 67% | 2671 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,611 psi | 68% | 2651 fps | 100% |
| Hodgdon Retumbo | 61.6 gr | 86% | 34,026 psi | 56% | 2641 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 47,065 psi | 77% | 2835 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,775 psi | 46% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,048 psi | 72% | 2694 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,864 psi | 82% | 2785 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,845 psi | 72% | 2707 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,741 psi | 67% | 2631 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 86% | 40,277 psi | 66% | 2723 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,782 psi | 60% | 2687 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,572 psi | 78% | 2736 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,890 psi | 75% | 2730 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 29,573 psi | 49% | 2385 fps | 96% |
| Norma 204 | <<locked>> | 80% | 44,106 psi | 72% | 2736 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 32,343 psi | 53% | 2595 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 35,708 psi | 59% | 2638 fps | 97.2% |
| Norma URP | <<locked>> | 80% | 45,063 psi | 74% | 2746 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,260 psi | 61% | 2664 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,932 psi | 72% | 2746 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 33,156 psi | 54% | 2543 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,456 psi | 47% | 1667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,963 psi | 75% | 2782 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,947 psi | 72% | 2799 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,937 psi | 51% | 2549 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,743 psi | 70% | 2835 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 39,668 psi | 65% | 2615 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 37,695 psi | 62% | 2618 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 80% | 48,689 psi | 80% | 2762 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,572 psi | 78% | 2736 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,890 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% | 37,362 psi | 61% | 2612 fps | 96.3% |
| Somchem S361 | <<locked>> | 80% | 40,292 psi | 66% | 2602 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 42,047 psi | 69% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,189 psi | 63% | 2598 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 80% | 50,473 psi | 83% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,441 psi | 76% | 2740 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,083 psi | 54% | 2470 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,919 psi | 75% | 2746 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,941 psi | 61% | 2612 fps | 99.7% |
| Vihtavuori N560 | <<locked>> | 84% | 41,365 psi | 68% | 2753 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 88% | 38,595 psi | 63% | 2680 fps | 95% |
| Vihtavuori N568 | <<locked>> | 96% | 44,237 psi | 73% | 2848 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,629 psi | 75% | 2700 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,776 psi | 78% | 2812 fps | 99.6% |
| Winchester StaBALL HD | 58.9 gr | 80% | 29,283 psi | 48% | 2559 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,838 psi | 57% | 2520 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 72 powders for 7 mm Blaser Mag. loaded with the .284 | 160gr | North Fork FPS. Hodgdon Retumbo delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,094 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 | North Fork FPS 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.