Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 175gr | Nosler Partition bullet and 68 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 Accurate MAGPRO.
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% | 54,476 psi | 89% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 52,011 psi | 85% | 2736 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 52,794 psi | 87% | 2858 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 88% | 52,605 psi | 86% | 2795 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 54,114 psi | 89% | 2861 fps | 99.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,953 psi | 85% | 2825 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,615 psi | 77% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,881 psi | 87% | 2789 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 52,431 psi | 86% | 2785 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,346 psi | 89% | 2858 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 52,199 psi | 86% | 2772 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,984 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 52,054 psi | 85% | 2854 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,243 psi | 86% | 2769 fps | 96.9% |
| Bofors RP15 | <<locked>> | 94% | 53,563 psi | 88% | 2844 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,766 psi | 90% | 2897 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 54,346 psi | 89% | 2858 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 54,027 psi | 89% | 2733 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 53,388 psi | 88% | 2848 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 53,563 psi | 88% | 2789 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 53,969 psi | 89% | 2799 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,968 psi | 87% | 2782 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,214 psi | 87% | 2713 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,780 psi | 88% | 2963 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,621 psi | 88% | 2825 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,347 psi | 61% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 52,446 psi | 86% | 2726 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 52,460 psi | 86% | 2730 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,824 psi | 90% | 2779 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 92% | 52,272 psi | 86% | 2841 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,163 psi | 69% | 2703 fps | 97.9% |
| Lovex S065 | <<locked>> | 82% | 52,808 psi | 87% | 2703 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,346 psi | 89% | 2753 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 52,185 psi | 86% | 2733 fps | 100% |
| Norma 204 | <<locked>> | 84% | 53,098 psi | 87% | 2779 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 42,250 psi | 69% | 2726 fps | 99.5% |
| Norma MRP | <<locked>> | 90% | 54,085 psi | 89% | 2874 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,896 psi | 88% | 2769 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,634 psi | 86% | 2858 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 52,823 psi | 87% | 2779 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,926 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,101 psi | 63% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 51,909 psi | 85% | 2759 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,824 psi | 88% | 2838 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,418 psi | 89% | 2959 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,374 psi | 88% | 2917 fps | 98.9% |
| Rottweil R 904 | <<locked>> | 88% | 53,809 psi | 88% | 2766 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 88% | 51,909 psi | 85% | 2776 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 54,027 psi | 89% | 2733 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,808 psi | 87% | 2703 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,346 psi | 89% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 51,851 psi | 85% | 2661 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,984 psi | 90% | 2825 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 51,663 psi | 85% | 2707 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 54,752 psi | 90% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 52,243 psi | 86% | 2746 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 82% | 52,243 psi | 86% | 2713 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 52,025 psi | 85% | 2733 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 54,926 psi | 90% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,230 psi | 89% | 2795 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,838 psi | 88% | 2874 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 96% | 53,911 psi | 89% | 2858 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,447 psi | 89% | 2920 fps | 98.6% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,329 psi | 84% | 2910 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,071 psi | 90% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,563 psi | 88% | 2789 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 53,679 psi | 88% | 2904 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 51,938 psi | 85% | 2743 fps | 99.7% |
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% | 36,463 psi | 60% | 2454 fps | 99% |
| Accurate 4350 | <<locked>> | 80% | 48,631 psi | 80% | 2684 fps | 100% |
| Accurate MAGPRO | 61 gr | 82% | 39,987 psi | 66% | 2618 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,437 psi | 66% | 2572 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 80% | 36,085 psi | 59% | 2507 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 88% | 34,896 psi | 57% | 2477 fps | 95% |
| ADI AR 2225 | <<locked>> | 86% | 29,573 psi | 49% | 2388 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,456 psi | 76% | 2687 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,495 psi | 66% | 2569 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,347 psi | 60% | 2516 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,114 psi | 58% | 2477 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,429 psi | 50% | 2402 fps | 98.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,609 psi | 63% | 2621 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,137 psi | 76% | 2654 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 33,881 psi | 56% | 2457 fps | 95.9% |
| Bofors RP30 | <<locked>> | 86% | 34,098 psi | 56% | 2497 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 36,347 psi | 60% | 2516 fps | 97% |
| Bofors RP7 | <<locked>> | 80% | 50,691 psi | 83% | 2680 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 33,388 psi | 55% | 2441 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 49,980 psi | 82% | 2733 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 38,580 psi | 63% | 2516 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 80% | 37,826 psi | 62% | 2497 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,976 psi | 72% | 2572 fps | 100% |
| Hodgdon Retumbo | 57.7 gr | 82% | 31,720 psi | 52% | 2480 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 49,951 psi | 82% | 2766 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 46% | 1555 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,267 psi | 76% | 2621 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 46,079 psi | 76% | 2628 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,190 psi | 66% | 2513 fps | 96.2% |
| IMR 7828 SSC | <<locked>> | 82% | 37,159 psi | 61% | 2543 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 94% | 34,490 psi | 57% | 2526 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 49,792 psi | 82% | 2657 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,138 psi | 79% | 2654 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,401 psi | 52% | 2333 fps | 97.7% |
| Norma 204 | <<locked>> | 80% | 46,369 psi | 76% | 2664 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 30,313 psi | 50% | 2438 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 38,029 psi | 62% | 2582 fps | 98.6% |
| Norma URP | <<locked>> | 80% | 47,514 psi | 78% | 2671 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 34,229 psi | 56% | 2487 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 46,267 psi | 76% | 2671 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 30,560 psi | 50% | 2379 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,587 psi | 47% | 1591 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,588 psi | 80% | 2707 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,586 psi | 76% | 2726 fps | 100% |
| ReloadSwiss RS 76 | 60.2 gr | 80% | 28,572 psi | 47% | 2385 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,465 psi | 65% | 2657 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 41,742 psi | 69% | 2549 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 80% | 39,914 psi | 66% | 2556 fps | 98% |
| Rottweil R 907 | <<locked>> | 80% | 50,691 psi | 83% | 2680 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,792 psi | 82% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,138 psi | 79% | 2654 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,646 psi | 80% | 2608 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,624 psi | 65% | 2552 fps | 97.9% |
| Somchem S361 | <<locked>> | 80% | 42,322 psi | 69% | 2539 fps | 96.6% |
| Somchem S365 | <<locked>> | 80% | 44,701 psi | 73% | 2628 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,422 psi | 66% | 2539 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 48,936 psi | 80% | 2661 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,085 psi | 58% | 2418 fps | 97% |
| Vihtavuori N550 | <<locked>> | 80% | 48,211 psi | 79% | 2667 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,334 psi | 65% | 2549 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,116 psi | 63% | 2572 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 84% | 35,998 psi | 59% | 2513 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 92% | 40,959 psi | 67% | 2671 fps | 95.4% |
| Vihtavuori N570 | <<locked>> | 98% | 48,022 psi | 79% | 2848 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,863 psi | 79% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,198 psi | 82% | 2736 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,256 psi | 51% | 2510 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,985 psi | 61% | 2467 fps | 97% |
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 68 powders for 7 mm Blaser Mag. loaded with the .284 | 175gr | Nosler Partition. Hodgdon Retumbo delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,963 fps. ADI AR 2217 gives the best case fill at 100 %, and 68 of the 68 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 1:10.5 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. Hodgdon Retumbo, ReloadSwiss RS 76, Accurate MAGPRO rank at the top here: for 7 mm Blaser Mag. with the .284 | 175gr | Nosler Partition 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.