Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 175gr | Woodleigh PP SN bullet and 70 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 Alliant Reloder-26.
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% | 54,998 psi | 90% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 52,402 psi | 86% | 2743 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 53,577 psi | 88% | 2874 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 88% | 53,142 psi | 87% | 2805 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 54,636 psi | 90% | 2871 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,591 psi | 86% | 2838 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,992 psi | 77% | 2802 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 53,563 psi | 88% | 2805 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 53,548 psi | 88% | 2799 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 52,953 psi | 87% | 2799 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,868 psi | 90% | 2867 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 52,823 psi | 87% | 2782 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 52,170 psi | 86% | 2848 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 52,649 psi | 86% | 2864 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 48,863 psi | 80% | 2851 fps | 96.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,591 psi | 86% | 2776 fps | 97% |
| Bofors RP15 | <<locked>> | 94% | 54,041 psi | 89% | 2854 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 51,692 psi | 85% | 2848 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 54,868 psi | 90% | 2867 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 54,578 psi | 90% | 2746 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 54,114 psi | 89% | 2861 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 53,896 psi | 88% | 2799 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 54,462 psi | 89% | 2808 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 90% | 53,447 psi | 88% | 2792 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,838 psi | 88% | 2723 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,520 psi | 90% | 2976 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,157 psi | 89% | 2831 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,318 psi | 61% | 1742 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 52,765 psi | 87% | 2733 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 53,040 psi | 87% | 2740 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 51,967 psi | 85% | 2736 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 92% | 52,765 psi | 87% | 2851 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,598 psi | 70% | 2710 fps | 98% |
| Lovex S065 | <<locked>> | 82% | 53,359 psi | 88% | 2717 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,926 psi | 90% | 2762 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 52,692 psi | 87% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 84% | 53,635 psi | 88% | 2789 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 42,960 psi | 71% | 2740 fps | 99.6% |
| Norma MRP | <<locked>> | 90% | 54,882 psi | 90% | 2887 fps | 100% |
| Norma URP | <<locked>> | 84% | 54,491 psi | 89% | 2779 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,447 psi | 88% | 2871 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 53,388 psi | 88% | 2789 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 51,634 psi | 85% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,276 psi | 63% | 1788 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 52,460 psi | 86% | 2769 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,404 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 51,242 psi | 84% | 2910 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,099 psi | 89% | 2930 fps | 99% |
| Rottweil R 904 | <<locked>> | 88% | 54,346 psi | 89% | 2776 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 52,460 psi | 86% | 2789 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 54,578 psi | 90% | 2746 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 53,359 psi | 88% | 2717 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,926 psi | 90% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 52,373 psi | 86% | 2671 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 52,069 psi | 85% | 2782 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 52,069 psi | 85% | 2717 fps | 98.7% |
| Somchem S365 | <<locked>> | 86% | 55,114 psi | 90% | 2782 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 53,011 psi | 87% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 52,547 psi | 86% | 2720 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 52,475 psi | 86% | 2743 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 51,909 psi | 85% | 2726 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,839 psi | 90% | 2805 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,621 psi | 90% | 2887 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 96% | 54,621 psi | 90% | 2871 fps | 99.4% |
| Vihtavuori N568 | <<locked>> | 98% | 51,314 psi | 84% | 2867 fps | 98.2% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,069 psi | 85% | 2923 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 51,721 psi | 85% | 2677 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,128 psi | 89% | 2802 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,679 psi | 90% | 2917 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 52,460 psi | 86% | 2753 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% | 36,796 psi | 60% | 2461 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 49,037 psi | 81% | 2694 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 40,495 psi | 66% | 2631 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 40,770 psi | 67% | 2582 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 80% | 36,376 psi | 60% | 2516 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 88% | 35,288 psi | 58% | 2490 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 84% | 28,108 psi | 46% | 2343 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,191 psi | 68% | 2585 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,876 psi | 77% | 2697 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,814 psi | 67% | 2579 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,651 psi | 60% | 2526 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,476 psi | 58% | 2487 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,719 psi | 50% | 2411 fps | 98.3% |
| Alliant Reloder-26 | 60.8 gr | 80% | 39,189 psi | 64% | 2635 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 45,484 psi | 75% | 2785 fps | 95.2% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,644 psi | 77% | 2667 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 34,200 psi | 56% | 2467 fps | 96.1% |
| Bofors RP30 | <<locked>> | 86% | 34,534 psi | 57% | 2510 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 36,651 psi | 60% | 2526 fps | 97.1% |
| Bofors RP7 | <<locked>> | 80% | 51,256 psi | 84% | 2694 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 33,605 psi | 55% | 2451 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 50,560 psi | 83% | 2743 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 38,841 psi | 64% | 2523 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,130 psi | 63% | 2507 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,353 psi | 73% | 2582 fps | 100% |
| Hodgdon Retumbo | 58.3 gr | 82% | 32,126 psi | 53% | 2493 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 50,473 psi | 83% | 2776 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,920 psi | 46% | 1555 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,572 psi | 76% | 2631 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 46,659 psi | 77% | 2641 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,480 psi | 66% | 2523 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 80% | 35,186 psi | 58% | 2500 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,041 psi | 58% | 2543 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 50,125 psi | 82% | 2664 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,472 psi | 80% | 2661 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,894 psi | 52% | 2349 fps | 97.9% |
| Norma 204 | <<locked>> | 80% | 46,920 psi | 77% | 2677 fps | 99.1% |
| Norma 217 | <<locked>> | 88% | 28,747 psi | 47% | 2392 fps | 95% |
| Norma MRP | <<locked>> | 80% | 38,566 psi | 63% | 2595 fps | 98.8% |
| Norma URP | <<locked>> | 80% | 47,892 psi | 79% | 2677 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 34,679 psi | 57% | 2503 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 46,789 psi | 77% | 2684 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 30,980 psi | 51% | 2388 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,645 psi | 47% | 1594 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,979 psi | 80% | 2713 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,166 psi | 77% | 2736 fps | 100% |
| ReloadSwiss RS 76 | 60.8 gr | 80% | 28,921 psi | 47% | 2398 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,059 psi | 66% | 2671 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 42,047 psi | 69% | 2559 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 80% | 40,277 psi | 66% | 2566 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 80% | 51,256 psi | 84% | 2694 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,125 psi | 82% | 2664 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,472 psi | 80% | 2661 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,965 psi | 80% | 2615 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,943 psi | 66% | 2562 fps | 98% |
| Somchem S361 | <<locked>> | 80% | 42,757 psi | 70% | 2552 fps | 96.8% |
| Somchem S365 | <<locked>> | 80% | 45,121 psi | 74% | 2635 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,727 psi | 67% | 2546 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 49,298 psi | 81% | 2671 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,389 psi | 58% | 2428 fps | 97.2% |
| Vihtavuori N550 | <<locked>> | 80% | 48,762 psi | 80% | 2677 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,697 psi | 65% | 2559 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,624 psi | 63% | 2585 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 84% | 36,463 psi | 60% | 2526 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 92% | 41,611 psi | 68% | 2687 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 98% | 48,646 psi | 80% | 2861 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,327 psi | 79% | 2628 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,792 psi | 83% | 2749 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,865 psi | 52% | 2526 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,275 psi | 61% | 2477 fps | 97.2% |
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 70 powders for 7 mm Blaser Mag. loaded with the .284 | 175gr | Woodleigh PP SN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,742 fps to 2,976 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 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, Alliant Reloder-26 rank at the top here: for 7 mm Blaser Mag. with the .284 | 175gr | Woodleigh PP SN 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.