Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 175gr | Hornady InterLock RN bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 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>> | 90% | 51,808 psi | 85% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 52,779 psi | 87% | 2749 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 54,099 psi | 89% | 2884 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 88% | 53,693 psi | 88% | 2815 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 51,430 psi | 84% | 2822 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,069 psi | 87% | 2848 fps | 99.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,442 psi | 78% | 2812 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 53,838 psi | 88% | 2812 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 53,940 psi | 89% | 2805 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 53,229 psi | 87% | 2805 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 51,706 psi | 85% | 2818 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 53,127 psi | 87% | 2789 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 52,489 psi | 86% | 2851 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 53,243 psi | 87% | 2874 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 49,530 psi | 81% | 2864 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,982 psi | 87% | 2785 fps | 97.1% |
| Bofors RP15 | <<locked>> | 94% | 54,360 psi | 89% | 2858 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 52,185 psi | 86% | 2858 fps | 99.6% |
| Bofors RP5 | <<locked>> | 90% | 51,706 psi | 85% | 2818 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 54,926 psi | 90% | 2753 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 54,563 psi | 90% | 2871 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 54,462 psi | 89% | 2808 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 54,752 psi | 90% | 2815 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 53,737 psi | 88% | 2799 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,201 psi | 89% | 2730 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,056 psi | 90% | 2986 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,708 psi | 90% | 2844 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,420 psi | 61% | 1749 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,069 psi | 87% | 2740 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 53,374 psi | 88% | 2746 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 52,460 psi | 86% | 2746 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 92% | 53,098 psi | 87% | 2858 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,047 psi | 71% | 2723 fps | 98.2% |
| Lovex S065 | <<locked>> | 82% | 53,708 psi | 88% | 2723 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 51,953 psi | 85% | 2720 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 53,243 psi | 87% | 2753 fps | 100% |
| Norma 204 | <<locked>> | 84% | 53,925 psi | 89% | 2795 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 43,453 psi | 71% | 2749 fps | 99.7% |
| Norma MRP | <<locked>> | 88% | 51,445 psi | 84% | 2835 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,839 psi | 90% | 2785 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,737 psi | 88% | 2877 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 53,679 psi | 88% | 2795 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 52,185 psi | 86% | 2815 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,174 psi | 63% | 1788 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 52,837 psi | 87% | 2776 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,984 psi | 90% | 2858 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 51,764 psi | 85% | 2920 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,882 psi | 90% | 2943 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 88% | 54,621 psi | 90% | 2782 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 52,765 psi | 87% | 2792 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 54,926 psi | 90% | 2753 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 53,708 psi | 88% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 51,953 psi | 85% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 52,692 psi | 87% | 2677 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 52,359 psi | 86% | 2789 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 52,533 psi | 86% | 2723 fps | 98.8% |
| Somchem S365 | <<locked>> | 84% | 51,982 psi | 85% | 2740 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 53,301 psi | 88% | 2766 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 52,895 psi | 87% | 2726 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 52,779 psi | 87% | 2749 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 98% | 54,940 psi | 90% | 2812 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 82% | 52,228 psi | 86% | 2733 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 51,982 psi | 85% | 2766 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,911 psi | 90% | 2894 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 96% | 54,868 psi | 90% | 2877 fps | 99.4% |
| Vihtavuori N568 | <<locked>> | 98% | 51,808 psi | 85% | 2877 fps | 98.3% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,562 psi | 86% | 2933 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 52,272 psi | 86% | 2684 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,462 psi | 89% | 2808 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 51,155 psi | 84% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 52,953 psi | 87% | 2762 fps | 99.8% |
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% | 37,130 psi | 61% | 2467 fps | 99.2% |
| Accurate 4350 | <<locked>> | 80% | 49,443 psi | 81% | 2700 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 40,770 psi | 67% | 2635 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 41,104 psi | 67% | 2589 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 80% | 36,651 psi | 60% | 2523 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 88% | 35,534 psi | 58% | 2497 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 84% | 28,311 psi | 46% | 2352 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,524 psi | 68% | 2592 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,239 psi | 78% | 2703 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,133 psi | 68% | 2585 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,956 psi | 61% | 2536 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,795 psi | 59% | 2493 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,966 psi | 51% | 2418 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,508 psi | 65% | 2641 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 45,876 psi | 75% | 2795 fps | 95.3% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,818 psi | 77% | 2674 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 34,476 psi | 57% | 2474 fps | 96.2% |
| Bofors RP30 | <<locked>> | 86% | 34,838 psi | 57% | 2516 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 36,956 psi | 61% | 2536 fps | 97.2% |
| Bofors RP7 | <<locked>> | 80% | 51,619 psi | 85% | 2700 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 33,852 psi | 56% | 2457 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 50,894 psi | 84% | 2753 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,131 psi | 64% | 2530 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,406 psi | 63% | 2513 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,715 psi | 73% | 2589 fps | 100% |
| Hodgdon Retumbo | 58.7 gr | 82% | 32,372 psi | 53% | 2503 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 50,807 psi | 83% | 2782 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,065 psi | 46% | 1562 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,876 psi | 77% | 2638 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 46,760 psi | 77% | 2644 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,727 psi | 67% | 2530 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 80% | 35,476 psi | 58% | 2507 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,273 psi | 58% | 2549 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 50,488 psi | 83% | 2671 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,820 psi | 80% | 2667 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,024 psi | 53% | 2352 fps | 98% |
| Norma 204 | <<locked>> | 80% | 47,224 psi | 78% | 2684 fps | 99.1% |
| Norma 217 | <<locked>> | 88% | 29,095 psi | 48% | 2405 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 38,885 psi | 64% | 2602 fps | 98.9% |
| Norma URP | <<locked>> | 80% | 48,269 psi | 79% | 2687 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 34,954 psi | 57% | 2510 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 47,152 psi | 77% | 2690 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,227 psi | 51% | 2398 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,601 psi | 47% | 1594 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,327 psi | 81% | 2720 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,514 psi | 78% | 2743 fps | 100% |
| ReloadSwiss RS 76 | 61.2 gr | 80% | 29,138 psi | 48% | 2405 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 37,710 psi | 62% | 2618 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 42,337 psi | 70% | 2566 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 40,596 psi | 67% | 2575 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 80% | 51,619 psi | 85% | 2700 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,488 psi | 83% | 2671 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,820 psi | 80% | 2667 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,255 psi | 81% | 2621 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,263 psi | 66% | 2569 fps | 98.1% |
| Somchem S361 | <<locked>> | 80% | 43,018 psi | 71% | 2556 fps | 96.9% |
| Somchem S365 | <<locked>> | 80% | 45,498 psi | 75% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,031 psi | 67% | 2552 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 49,661 psi | 82% | 2677 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,665 psi | 59% | 2434 fps | 97.3% |
| Vihtavuori N170 | <<locked>> | 96% | 51,576 psi | 85% | 2756 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 48,878 psi | 80% | 2680 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,059 psi | 66% | 2566 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,928 psi | 64% | 2595 fps | 96% |
| Vihtavuori N565 | <<locked>> | 84% | 36,738 psi | 60% | 2533 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 92% | 41,858 psi | 69% | 2694 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 98% | 48,907 psi | 80% | 2867 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,646 psi | 80% | 2631 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,140 psi | 84% | 2756 fps | 100% |
| Winchester StaBALL HD | 58.8 gr | 80% | 32,213 psi | 53% | 2533 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,550 psi | 62% | 2484 fps | 97.3% |
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 71 powders for 7 mm Blaser Mag. loaded with the .284 | 175gr | Hornady InterLock RN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,986 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 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 175.0 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, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for 7 mm Blaser Mag. with the .284 | 175gr | Hornady InterLock RN 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.