Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 173gr | RWS H-Mantel bullet and 69 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% | 54,230 psi | 89% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 51,648 psi | 85% | 2746 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 52,779 psi | 87% | 2874 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 88% | 52,417 psi | 86% | 2805 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 53,867 psi | 88% | 2871 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,634 psi | 85% | 2835 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,311 psi | 76% | 2802 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 52,837 psi | 87% | 2808 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,736 psi | 87% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 52,228 psi | 86% | 2799 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,085 psi | 89% | 2871 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 51,967 psi | 85% | 2789 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,650 psi | 90% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 51,735 psi | 85% | 2867 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 52,069 psi | 85% | 2779 fps | 96.7% |
| Bofors RP15 | <<locked>> | 94% | 53,301 psi | 88% | 2854 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,375 psi | 89% | 2907 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 54,085 psi | 89% | 2871 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 53,940 psi | 89% | 2749 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 53,345 psi | 88% | 2861 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 82% | 53,156 psi | 87% | 2799 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 53,751 psi | 88% | 2808 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,765 psi | 87% | 2795 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 53,069 psi | 87% | 2730 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,722 psi | 88% | 2976 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,374 psi | 88% | 2835 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,318 psi | 61% | 1752 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 52,083 psi | 86% | 2736 fps | 99.9% |
| IMR 4831 | <<locked>> | 84% | 52,301 psi | 86% | 2743 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,650 psi | 90% | 2792 fps | 99% |
| IMR 7828 SSC | <<locked>> | 92% | 52,025 psi | 85% | 2851 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,887 psi | 69% | 2710 fps | 97.7% |
| Lovex S065 | <<locked>> | 82% | 52,678 psi | 86% | 2717 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,244 psi | 89% | 2766 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 51,967 psi | 85% | 2743 fps | 100% |
| Norma 204 | <<locked>> | 84% | 52,910 psi | 87% | 2792 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 41,989 psi | 69% | 2733 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 53,795 psi | 88% | 2887 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,737 psi | 88% | 2782 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,330 psi | 86% | 2867 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 84% | 52,663 psi | 86% | 2792 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,549 psi | 90% | 2861 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,072 psi | 63% | 1791 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 51,692 psi | 85% | 2772 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,592 psi | 88% | 2851 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,027 psi | 89% | 2969 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,156 psi | 87% | 2930 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 88% | 53,621 psi | 88% | 2779 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 88% | 51,677 psi | 85% | 2789 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 82% | 53,940 psi | 89% | 2749 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,678 psi | 86% | 2717 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,244 psi | 89% | 2766 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,114 psi | 90% | 2723 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,781 psi | 90% | 2838 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 54,940 psi | 90% | 2772 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 54,273 psi | 89% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 52,069 psi | 85% | 2759 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 82% | 51,866 psi | 85% | 2723 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 51,793 psi | 85% | 2746 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 54,505 psi | 89% | 2779 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,027 psi | 89% | 2812 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,577 psi | 88% | 2884 fps | 99% |
| Vihtavuori N565 | <<locked>> | 96% | 53,563 psi | 88% | 2867 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,056 psi | 89% | 2930 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,256 psi | 84% | 2923 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,621 psi | 90% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,388 psi | 88% | 2802 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 53,272 psi | 87% | 2917 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 51,721 psi | 85% | 2756 fps | 99.6% |
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% | 36,201 psi | 59% | 2461 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 48,283 psi | 79% | 2694 fps | 100% |
| Accurate MAGPRO | 61.3 gr | 82% | 39,784 psi | 65% | 2628 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 40,161 psi | 66% | 2582 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 80% | 35,998 psi | 59% | 2516 fps | 95% |
| ADI AR 2217 | <<locked>> | 90% | 37,130 psi | 61% | 2546 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 29,457 psi | 48% | 2395 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,567 psi | 67% | 2585 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,369 psi | 76% | 2700 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,205 psi | 66% | 2579 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,216 psi | 59% | 2530 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,824 psi | 57% | 2487 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,197 psi | 50% | 2408 fps | 97.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,421 psi | 63% | 2631 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 45,963 psi | 75% | 2667 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 33,605 psi | 55% | 2464 fps | 95.7% |
| Bofors RP30 | <<locked>> | 86% | 33,924 psi | 56% | 2507 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 36,216 psi | 59% | 2530 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 50,618 psi | 83% | 2694 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 35,346 psi | 58% | 2503 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 49,835 psi | 82% | 2746 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 80% | 38,276 psi | 63% | 2523 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 37,739 psi | 62% | 2510 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,671 psi | 72% | 2582 fps | 100% |
| Hodgdon Retumbo | 58 gr | 82% | 31,589 psi | 52% | 2487 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 49,763 psi | 82% | 2779 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,050 psi | 46% | 1565 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,934 psi | 75% | 2631 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 45,948 psi | 75% | 2644 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,914 psi | 66% | 2523 fps | 96% |
| IMR 7828 SSC | <<locked>> | 82% | 37,028 psi | 61% | 2556 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,651 psi | 60% | 2595 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 49,501 psi | 81% | 2667 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,834 psi | 79% | 2664 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,299 psi | 51% | 2343 fps | 97.5% |
| Norma 204 | <<locked>> | 80% | 46,253 psi | 76% | 2677 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 30,139 psi | 49% | 2444 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 37,884 psi | 62% | 2595 fps | 98.5% |
| Norma URP | <<locked>> | 80% | 47,195 psi | 77% | 2680 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,680 psi | 60% | 2562 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 46,151 psi | 76% | 2687 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 30,458 psi | 50% | 2385 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,587 psi | 47% | 1601 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,240 psi | 79% | 2717 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,427 psi | 76% | 2740 fps | 100% |
| ReloadSwiss RS 76 | 62 gr | 82% | 30,472 psi | 50% | 2457 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,407 psi | 65% | 2667 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 41,466 psi | 68% | 2559 fps | 97% |
| Rottweil R 905 | <<locked>> | 80% | 39,624 psi | 65% | 2566 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 80% | 50,618 psi | 83% | 2694 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,501 psi | 81% | 2667 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,834 psi | 79% | 2664 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,501 psi | 80% | 2621 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,334 psi | 65% | 2562 fps | 97.7% |
| Somchem S361 | <<locked>> | 80% | 42,177 psi | 69% | 2549 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 44,353 psi | 73% | 2638 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,277 psi | 66% | 2549 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 80% | 48,602 psi | 80% | 2671 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,809 psi | 57% | 2425 fps | 96.8% |
| Vihtavuori N550 | <<locked>> | 80% | 48,080 psi | 79% | 2680 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,015 psi | 64% | 2559 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 37,985 psi | 62% | 2582 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 86% | 38,261 psi | 63% | 2579 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 92% | 40,741 psi | 67% | 2680 fps | 95.2% |
| Vihtavuori N570 | <<locked>> | 98% | 47,659 psi | 78% | 2854 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,674 psi | 78% | 2631 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,067 psi | 82% | 2749 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,082 psi | 51% | 2523 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,695 psi | 60% | 2474 fps | 96.8% |
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 69 powders for 7 mm Blaser Mag. loaded with the .284 | 173gr | RWS H-Mantel. Hodgdon Retumbo delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,752 fps to 2,976 fps. ADI AR 2217 gives the best case fill at 100 %, and 69 of the 69 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 173.0 gr projectile in 0.284" calls for a 1:11.0 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 | 173gr | RWS H-Mantel 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.