Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 175gr | Barnes X S bullet and 65 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 54,041 psi | 89% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,853 psi | 90% | 2753 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 55,085 psi | 90% | 2874 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 88% | 54,578 psi | 90% | 2805 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 52,330 psi | 86% | 2812 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,766 psi | 88% | 2831 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 48,776 psi | 80% | 2812 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 54,882 psi | 90% | 2802 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,940 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 54,317 psi | 89% | 2795 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 52,910 psi | 87% | 2815 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 54,491 psi | 89% | 2785 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 53,519 psi | 88% | 2848 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 54,563 psi | 90% | 2874 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 50,720 psi | 83% | 2861 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,592 psi | 88% | 2769 fps | 97% |
| Bofors RP15 | <<locked>> | 92% | 52,228 psi | 86% | 2802 fps | 99.7% |
| Bofors RP30 | <<locked>> | 98% | 53,476 psi | 88% | 2854 fps | 99.6% |
| Bofors RP5 | <<locked>> | 90% | 52,910 psi | 87% | 2815 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 96% | 51,895 psi | 85% | 2802 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 88% | 52,243 psi | 86% | 2749 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 54,679 psi | 90% | 2789 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 52,112 psi | 86% | 2677 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 52,417 psi | 86% | 2920 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,608 psi | 62% | 1729 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,012 psi | 89% | 2730 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,839 psi | 90% | 2740 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 53,388 psi | 88% | 2733 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 92% | 54,027 psi | 89% | 2848 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 44,585 psi | 73% | 2730 fps | 98.3% |
| Lovex S065 | <<locked>> | 82% | 55,100 psi | 90% | 2713 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 53,548 psi | 88% | 2717 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 52,054 psi | 85% | 2707 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,868 psi | 90% | 2785 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 44,831 psi | 74% | 2756 fps | 99.7% |
| Norma MRP | <<locked>> | 88% | 52,779 psi | 87% | 2835 fps | 100% |
| Norma URP | <<locked>> | 82% | 52,837 psi | 87% | 2730 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 54,694 psi | 90% | 2867 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 54,737 psi | 90% | 2785 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 53,040 psi | 87% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,682 psi | 64% | 1772 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,418 psi | 89% | 2772 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 51,982 psi | 85% | 2792 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 52,692 psi | 87% | 2913 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 51,909 psi | 85% | 2874 fps | 98.6% |
| Rottweil R 904 | <<locked>> | 86% | 52,373 psi | 86% | 2720 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 88% | 53,983 psi | 89% | 2785 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,100 psi | 90% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 53,548 psi | 88% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 54,027 psi | 89% | 2667 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 53,563 psi | 88% | 2782 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 53,708 psi | 88% | 2717 fps | 98.7% |
| Somchem S365 | <<locked>> | 84% | 53,374 psi | 88% | 2733 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 54,636 psi | 90% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 54,259 psi | 89% | 2717 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 54,012 psi | 89% | 2743 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 53,650 psi | 88% | 2726 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 53,722 psi | 88% | 2766 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 52,417 psi | 86% | 2828 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 94% | 52,924 psi | 87% | 2822 fps | 99.1% |
| Vihtavuori N568 | <<locked>> | 98% | 53,011 psi | 87% | 2877 fps | 98.3% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 53,505 psi | 88% | 2927 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 53,040 psi | 87% | 2671 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 52,272 psi | 86% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,172 psi | 89% | 2756 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% | 39,508 psi | 65% | 2487 fps | 99.4% |
| Accurate 4350 | <<locked>> | 80% | 51,430 psi | 84% | 2700 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 39,769 psi | 65% | 2589 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 42,322 psi | 69% | 2589 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 80% | 38,159 psi | 63% | 2533 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 88% | 37,028 psi | 61% | 2507 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 82% | 28,500 psi | 47% | 2326 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,801 psi | 70% | 2592 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,428 psi | 80% | 2697 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,453 psi | 70% | 2585 fps | 98.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,638 psi | 63% | 2546 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,434 psi | 61% | 2503 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,750 psi | 54% | 2438 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,220 psi | 68% | 2654 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 47,340 psi | 78% | 2799 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 47,848 psi | 79% | 2667 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 36,187 psi | 59% | 2490 fps | 96.7% |
| Bofors RP30 | <<locked>> | 84% | 34,563 psi | 57% | 2487 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 38,638 psi | 63% | 2546 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 84% | 35,491 psi | 58% | 2470 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 80% | 40,582 psi | 67% | 2533 fps | 96% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,842 psi | 65% | 2520 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,977 psi | 75% | 2582 fps | 100% |
| Hodgdon Retumbo | 54.9 gr | 80% | 32,053 psi | 53% | 2461 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,326 psi | 47% | 1545 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,993 psi | 79% | 2631 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 48,602 psi | 80% | 2648 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,974 psi | 69% | 2526 fps | 96.6% |
| IMR 7828 SSC | <<locked>> | 80% | 37,028 psi | 61% | 2516 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 92% | 35,085 psi | 58% | 2516 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 51,866 psi | 85% | 2664 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,343 psi | 83% | 2664 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,664 psi | 57% | 2382 fps | 98.6% |
| Norma 204 | <<locked>> | 80% | 48,327 psi | 79% | 2677 fps | 99.1% |
| Norma 217 | <<locked>> | 86% | 29,414 psi | 48% | 2385 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 40,524 psi | 67% | 2615 fps | 99.1% |
| Norma URP | <<locked>> | 80% | 49,603 psi | 81% | 2680 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,593 psi | 60% | 2523 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 48,356 psi | 79% | 2684 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,141 psi | 54% | 2418 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,138 psi | 48% | 1585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,879 psi | 84% | 2720 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 48,718 psi | 80% | 2740 fps | 100% |
| ReloadSwiss RS 76 | 58.8 gr | 80% | 31,212 psi | 51% | 2441 fps | 96.6% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 39,494 psi | 65% | 2635 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 43,758 psi | 72% | 2569 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 80% | 42,148 psi | 69% | 2579 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,866 psi | 85% | 2664 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,343 psi | 83% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,749 psi | 83% | 2618 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,800 psi | 69% | 2572 fps | 98.3% |
| Somchem S361 | <<locked>> | 80% | 44,483 psi | 73% | 2556 fps | 97% |
| Somchem S365 | <<locked>> | 80% | 47,094 psi | 77% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,844 psi | 70% | 2562 fps | 99% |
| Vihtavuori N160 | <<locked>> | 80% | 50,923 psi | 84% | 2667 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,333 psi | 61% | 2444 fps | 97.6% |
| Vihtavuori N550 | <<locked>> | 80% | 50,444 psi | 83% | 2680 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,264 psi | 69% | 2579 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,422 psi | 66% | 2602 fps | 96.2% |
| Vihtavuori N565 | <<locked>> | 82% | 36,347 psi | 60% | 2497 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 90% | 40,828 psi | 67% | 2648 fps | 95.2% |
| Vihtavuori N570 | <<locked>> | 96% | 47,036 psi | 77% | 2808 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 49,850 psi | 82% | 2628 fps | 100% |
| Winchester StaBALL HD | 56.4 gr | 80% | 33,910 psi | 56% | 2556 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,233 psi | 64% | 2490 fps | 97.6% |
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 65 powders for 7 mm Blaser Mag. loaded with the .284 | 175gr | Barnes X S. Vihtavuori N570 delivers the highest muzzle velocity at 2,927 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,927 fps. ADI AR 2217 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.284" calls for a 1:9.5 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 | Barnes X S 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.