Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 175gr | Sierra MatchKing 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 Vihtavuori N560.
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% | 53,911 psi | 89% | 2756 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,969 psi | 90% | 2776 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 52,272 psi | 86% | 2848 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 88% | 52,286 psi | 86% | 2789 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 92% | 53,592 psi | 88% | 2851 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,474 psi | 85% | 2815 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,948 psi | 75% | 2779 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,475 psi | 86% | 2782 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 51,866 psi | 85% | 2776 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 53,780 psi | 88% | 2848 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,911 psi | 90% | 2812 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,447 psi | 89% | 2877 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 51,445 psi | 84% | 2848 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,056 psi | 90% | 2812 fps | 97.4% |
| Bofors RP15 | <<locked>> | 94% | 52,997 psi | 87% | 2835 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,940 psi | 89% | 2881 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 53,780 psi | 88% | 2848 fps | 99.9% |
| Bofors RP7 | <<locked>> | 82% | 53,679 psi | 88% | 2726 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 52,924 psi | 87% | 2838 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 82% | 52,939 psi | 87% | 2779 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 53,447 psi | 88% | 2789 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 52,446 psi | 86% | 2772 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 52,852 psi | 87% | 2707 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,229 psi | 87% | 2953 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,040 psi | 87% | 2815 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,362 psi | 61% | 1736 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 51,909 psi | 85% | 2717 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,085 psi | 90% | 2749 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 51,822 psi | 85% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,331 psi | 89% | 2769 fps | 99% |
| IMR 7828 SSC | <<locked>> | 94% | 55,085 psi | 90% | 2884 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,495 psi | 68% | 2687 fps | 97.6% |
| Lovex S065 | <<locked>> | 82% | 52,460 psi | 86% | 2697 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,027 psi | 89% | 2746 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,940 psi | 90% | 2769 fps | 100% |
| Norma 204 | <<locked>> | 84% | 52,518 psi | 86% | 2769 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 41,800 psi | 69% | 2717 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 53,490 psi | 88% | 2864 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,519 psi | 88% | 2762 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 52,054 psi | 85% | 2848 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 52,243 psi | 86% | 2769 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,114 psi | 89% | 2838 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 63% | 1778 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,013 psi | 90% | 2802 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,185 psi | 87% | 2828 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,708 psi | 88% | 2946 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,620 psi | 86% | 2904 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 88% | 53,258 psi | 87% | 2756 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 54,839 psi | 90% | 2818 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 53,679 psi | 88% | 2726 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,460 psi | 86% | 2697 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,027 psi | 89% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,955 psi | 90% | 2703 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,418 psi | 89% | 2815 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 54,708 psi | 90% | 2749 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 54,056 psi | 89% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 51,967 psi | 85% | 2743 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 84% | 55,100 psi | 90% | 2753 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,998 psi | 90% | 2776 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 54,331 psi | 89% | 2759 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 53,824 psi | 88% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,316 psi | 88% | 2861 fps | 99% |
| Vihtavuori N565 | <<locked>> | 96% | 53,374 psi | 88% | 2848 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,679 psi | 88% | 2904 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 50,662 psi | 83% | 2894 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,563 psi | 90% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 53,185 psi | 87% | 2782 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 52,997 psi | 87% | 2897 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,042 psi | 90% | 2789 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% | 36,129 psi | 59% | 2444 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 48,196 psi | 79% | 2677 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 39,465 psi | 65% | 2605 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 40,103 psi | 66% | 2566 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 80% | 35,795 psi | 59% | 2497 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 36,883 psi | 61% | 2526 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 86% | 29,211 psi | 48% | 2375 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,035 psi | 76% | 2680 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,161 psi | 66% | 2562 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,984 psi | 59% | 2510 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,563 psi | 57% | 2464 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,153 psi | 50% | 2392 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,029 psi | 62% | 2608 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 45,774 psi | 75% | 2644 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 33,547 psi | 55% | 2451 fps | 95.7% |
| Bofors RP30 | <<locked>> | 86% | 33,605 psi | 55% | 2484 fps | 95% |
| Bofors RP5 | <<locked>> | 80% | 35,984 psi | 59% | 2510 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 50,343 psi | 83% | 2674 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 35,230 psi | 58% | 2487 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 49,603 psi | 81% | 2726 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 80% | 38,072 psi | 63% | 2503 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 37,521 psi | 62% | 2490 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,352 psi | 71% | 2562 fps | 100% |
| Hodgdon Retumbo | 57.1 gr | 82% | 31,299 psi | 51% | 2464 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 49,414 psi | 81% | 2756 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,978 psi | 46% | 1552 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,905 psi | 75% | 2615 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,750 psi | 85% | 2697 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 45,672 psi | 75% | 2621 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,900 psi | 66% | 2507 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 82% | 36,825 psi | 60% | 2536 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,419 psi | 60% | 2575 fps | 96% |
| Lovex S065 | <<locked>> | 80% | 49,211 psi | 81% | 2648 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,790 psi | 78% | 2644 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,053 psi | 51% | 2323 fps | 97.5% |
| Norma 204 | <<locked>> | 80% | 46,050 psi | 76% | 2657 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 29,892 psi | 49% | 2425 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 37,695 psi | 62% | 2575 fps | 98.5% |
| Norma URP | <<locked>> | 80% | 47,123 psi | 77% | 2664 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,376 psi | 60% | 2539 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 45,890 psi | 75% | 2664 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 30,153 psi | 50% | 2365 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,514 psi | 47% | 1585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,008 psi | 79% | 2697 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,224 psi | 76% | 2720 fps | 100% |
| ReloadSwiss RS 76 | 61.2 gr | 82% | 30,371 psi | 50% | 2441 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,030 psi | 64% | 2644 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 41,394 psi | 68% | 2543 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 80% | 39,392 psi | 65% | 2546 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 80% | 50,343 psi | 83% | 2674 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,211 psi | 81% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,790 psi | 78% | 2644 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,312 psi | 79% | 2602 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,059 psi | 64% | 2539 fps | 97.7% |
| Somchem S361 | <<locked>> | 80% | 42,047 psi | 69% | 2533 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 44,309 psi | 73% | 2618 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,059 psi | 66% | 2530 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 80% | 48,559 psi | 80% | 2654 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,780 psi | 57% | 2411 fps | 96.9% |
| Vihtavuori N550 | <<locked>> | 80% | 47,848 psi | 79% | 2661 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,914 psi | 64% | 2539 fps | 100% |
| Vihtavuori N560 | 57.9 gr | 80% | 37,826 psi | 62% | 2566 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 86% | 37,971 psi | 62% | 2559 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 92% | 40,524 psi | 67% | 2661 fps | 95.2% |
| Vihtavuori N570 | <<locked>> | 98% | 47,311 psi | 78% | 2831 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,543 psi | 78% | 2612 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,850 psi | 82% | 2730 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 30,879 psi | 51% | 2503 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,506 psi | 60% | 2454 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 | 175gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,736 fps to 2,953 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 175.0 gr projectile in 0.284" calls for a 1:10.0 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, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 175gr | Sierra MatchKing 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.