Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 180gr | Berger Hybrid Target 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 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% | 54,056 psi | 89% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 51,735 psi | 85% | 2690 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 52,533 psi | 86% | 2812 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 88% | 52,533 psi | 86% | 2749 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 53,751 psi | 88% | 2812 fps | 99.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,822 psi | 85% | 2782 fps | 99.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,311 psi | 76% | 2749 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,707 psi | 87% | 2746 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,707 psi | 87% | 2746 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,866 psi | 87% | 2743 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 52,156 psi | 86% | 2743 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 53,983 psi | 89% | 2808 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 51,967 psi | 85% | 2730 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,781 psi | 90% | 2841 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 51,721 psi | 85% | 2808 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 48,008 psi | 79% | 2795 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,895 psi | 85% | 2723 fps | 96.9% |
| Bofors RP15 | <<locked>> | 94% | 53,200 psi | 87% | 2795 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,360 psi | 89% | 2848 fps | 99.8% |
| Bofors RP5 | <<locked>> | 92% | 53,983 psi | 89% | 2808 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 53,954 psi | 89% | 2690 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 53,272 psi | 87% | 2805 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 53,359 psi | 88% | 2743 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 53,563 psi | 88% | 2749 fps | 99% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,533 psi | 86% | 2736 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 52,953 psi | 87% | 2667 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,592 psi | 88% | 2917 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,432 psi | 88% | 2779 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,347 psi | 61% | 1706 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 52,286 psi | 86% | 2684 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 52,228 psi | 86% | 2684 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,592 psi | 90% | 2733 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 92% | 51,851 psi | 85% | 2795 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,785 psi | 69% | 2657 fps | 98% |
| Lovex S065 | <<locked>> | 82% | 52,721 psi | 87% | 2661 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,375 psi | 89% | 2710 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 51,982 psi | 85% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 84% | 52,997 psi | 87% | 2736 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 42,076 psi | 69% | 2684 fps | 99.6% |
| Norma MRP | <<locked>> | 90% | 53,693 psi | 88% | 2828 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,925 psi | 89% | 2726 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,330 psi | 86% | 2812 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 52,721 psi | 87% | 2736 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,592 psi | 90% | 2805 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,130 psi | 63% | 1745 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 51,750 psi | 85% | 2713 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,548 psi | 88% | 2792 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,998 psi | 89% | 2910 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,055 psi | 87% | 2874 fps | 99% |
| Rottweil R 904 | <<locked>> | 88% | 53,722 psi | 88% | 2723 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 51,808 psi | 85% | 2733 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 53,954 psi | 89% | 2690 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,721 psi | 87% | 2661 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,375 psi | 89% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,100 psi | 90% | 2664 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,737 psi | 90% | 2779 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 54,897 psi | 90% | 2713 fps | 99.1% |
| Somchem S365 | <<locked>> | 86% | 54,302 psi | 89% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 52,257 psi | 86% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 51,938 psi | 85% | 2664 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 51,619 psi | 85% | 2687 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 54,549 psi | 90% | 2723 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,186 psi | 89% | 2753 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,505 psi | 88% | 2825 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 96% | 53,461 psi | 88% | 2812 fps | 99.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,940 psi | 89% | 2871 fps | 98.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,184 psi | 84% | 2867 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,636 psi | 90% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,359 psi | 88% | 2743 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 53,374 psi | 88% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 51,822 psi | 85% | 2700 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% | 36,376 psi | 60% | 2415 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 48,501 psi | 80% | 2641 fps | 100% |
| Accurate MAGPRO | 59.4 gr | 82% | 39,682 psi | 65% | 2575 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 40,350 psi | 66% | 2536 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 80% | 35,882 psi | 59% | 2464 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 88% | 34,867 psi | 57% | 2441 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 84% | 27,659 psi | 45% | 2297 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,785 psi | 67% | 2536 fps | 98.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,785 psi | 67% | 2536 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,238 psi | 76% | 2644 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,408 psi | 66% | 2530 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,085 psi | 59% | 2477 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,954 psi | 57% | 2438 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,342 psi | 50% | 2365 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,290 psi | 63% | 2579 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 44,585 psi | 73% | 2730 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,064 psi | 76% | 2615 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 33,750 psi | 55% | 2421 fps | 96.1% |
| Bofors RP30 | <<locked>> | 86% | 33,808 psi | 56% | 2457 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 36,085 psi | 59% | 2477 fps | 97.1% |
| Bofors RP7 | <<locked>> | 80% | 50,546 psi | 83% | 2638 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 33,098 psi | 54% | 2402 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 49,937 psi | 82% | 2690 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 38,305 psi | 63% | 2470 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 37,579 psi | 62% | 2457 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,772 psi | 72% | 2530 fps | 100% |
| Hodgdon Retumbo | 56.2 gr | 82% | 31,531 psi | 52% | 2441 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 49,705 psi | 82% | 2723 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 46% | 1522 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,137 psi | 76% | 2582 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 45,919 psi | 75% | 2585 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,103 psi | 66% | 2477 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 80% | 34,650 psi | 57% | 2448 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 94% | 34,345 psi | 56% | 2490 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 49,661 psi | 82% | 2615 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,022 psi | 79% | 2612 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,372 psi | 52% | 2300 fps | 97.9% |
| Norma 204 | <<locked>> | 80% | 46,151 psi | 76% | 2621 fps | 99% |
| Norma 217 | <<locked>> | 90% | 30,110 psi | 49% | 2402 fps | 96% |
| Norma MRP | <<locked>> | 80% | 37,840 psi | 62% | 2543 fps | 98.8% |
| Norma URP | <<locked>> | 80% | 47,398 psi | 78% | 2625 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 34,229 psi | 56% | 2454 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 46,050 psi | 76% | 2628 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 30,443 psi | 50% | 2339 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 47% | 1558 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,428 psi | 80% | 2664 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,427 psi | 76% | 2684 fps | 100% |
| ReloadSwiss RS 76 | 58.7 gr | 80% | 28,500 psi | 47% | 2352 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,378 psi | 65% | 2618 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 41,626 psi | 68% | 2510 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 80% | 39,639 psi | 65% | 2513 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 80% | 50,546 psi | 83% | 2638 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,661 psi | 82% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,022 psi | 79% | 2612 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,588 psi | 80% | 2566 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,305 psi | 65% | 2510 fps | 98% |
| Somchem S361 | <<locked>> | 80% | 42,221 psi | 69% | 2500 fps | 96.8% |
| Somchem S365 | <<locked>> | 80% | 44,585 psi | 73% | 2585 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,147 psi | 66% | 2497 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 48,834 psi | 80% | 2618 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,998 psi | 57% | 2382 fps | 97.2% |
| Vihtavuori N550 | <<locked>> | 80% | 47,921 psi | 79% | 2621 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,160 psi | 64% | 2507 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 37,956 psi | 62% | 2533 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 84% | 35,694 psi | 59% | 2474 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 92% | 40,770 psi | 67% | 2631 fps | 95.6% |
| Vihtavuori N570 | <<locked>> | 98% | 47,514 psi | 78% | 2799 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,732 psi | 78% | 2575 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,937 psi | 82% | 2690 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,053 psi | 51% | 2474 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,767 psi | 60% | 2428 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 71 powders for 7 mm Blaser Mag. loaded with the .284 | 180gr | Berger Hybrid Target. Hodgdon Retumbo delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,917 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 180.0 gr projectile in 0.284" calls for a 1:9.0 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, Accurate MAGPRO rank at the top here: for 7 mm Blaser Mag. with the .284 | 180gr | Berger Hybrid Target 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.