Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 168gr | Sierra MatchKing bullet and 68 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>> | 92% | 53,243 psi | 87% | 2805 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,389 psi | 89% | 2831 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 51,764 psi | 85% | 2897 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 88% | 51,590 psi | 85% | 2835 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 92% | 52,924 psi | 87% | 2897 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,879 psi | 84% | 2861 fps | 99.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,571 psi | 75% | 2825 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 84% | 52,011 psi | 85% | 2835 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 54,795 psi | 90% | 2884 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 53,127 psi | 87% | 2897 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,505 psi | 89% | 2864 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 53,780 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 54,795 psi | 90% | 2956 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,752 psi | 90% | 2861 fps | 97% |
| Bofors RP15 | <<locked>> | 94% | 52,359 psi | 86% | 2881 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,461 psi | 88% | 2933 fps | 99.5% |
| Bofors RP5 | <<locked>> | 92% | 53,127 psi | 87% | 2897 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 53,330 psi | 88% | 2782 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 98% | 52,286 psi | 86% | 2884 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 82% | 52,431 psi | 86% | 2831 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 52,866 psi | 87% | 2838 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 51,924 psi | 85% | 2822 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 52,330 psi | 86% | 2762 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 52,591 psi | 86% | 3002 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 52,446 psi | 86% | 2864 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,260 psi | 61% | 1778 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,752 psi | 90% | 2818 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,505 psi | 89% | 2799 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 54,940 psi | 90% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,114 psi | 89% | 2822 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 94% | 54,578 psi | 90% | 2933 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,944 psi | 67% | 2726 fps | 97.1% |
| Lovex S065 | <<locked>> | 82% | 52,098 psi | 86% | 2749 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 53,563 psi | 88% | 2799 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,549 psi | 90% | 2825 fps | 100% |
| Norma 204 | <<locked>> | 84% | 52,156 psi | 86% | 2822 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 41,176 psi | 68% | 2756 fps | 99.1% |
| Norma MRP | <<locked>> | 90% | 52,982 psi | 87% | 2917 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,011 psi | 87% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 51,503 psi | 85% | 2897 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 51,866 psi | 85% | 2822 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,577 psi | 88% | 2887 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,985 psi | 62% | 1821 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,505 psi | 89% | 2858 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 52,634 psi | 86% | 2881 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,229 psi | 87% | 2999 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,040 psi | 85% | 2953 fps | 98.5% |
| Rottweil R 904 | <<locked>> | 88% | 52,924 psi | 87% | 2808 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 54,317 psi | 89% | 2871 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 53,330 psi | 88% | 2782 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 82% | 52,098 psi | 86% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 53,563 psi | 88% | 2799 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,476 psi | 89% | 2753 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 53,896 psi | 88% | 2867 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 54,099 psi | 89% | 2799 fps | 98.6% |
| Somchem S365 | <<locked>> | 86% | 53,403 psi | 88% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,853 psi | 90% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,549 psi | 90% | 2805 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,302 psi | 89% | 2825 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 53,780 psi | 88% | 2812 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 53,345 psi | 88% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 52,823 psi | 87% | 2913 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 96% | 52,750 psi | 87% | 2897 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,214 psi | 87% | 2956 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,027 psi | 89% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 52,649 psi | 86% | 2835 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 52,199 psi | 86% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,607 psi | 90% | 2838 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% | 35,650 psi | 59% | 2484 fps | 98.6% |
| Accurate 4350 | <<locked>> | 80% | 47,572 psi | 78% | 2723 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 41,945 psi | 69% | 2710 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 39,624 psi | 65% | 2608 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 82% | 37,884 psi | 62% | 2598 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 90% | 36,535 psi | 60% | 2566 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 86% | 28,979 psi | 48% | 2411 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,484 psi | 75% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,668 psi | 65% | 2605 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,462 psi | 58% | 2549 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,272 psi | 56% | 2513 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,762 psi | 49% | 2428 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,666 psi | 62% | 2654 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 48,414 psi | 79% | 2749 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 33,069 psi | 54% | 2487 fps | 95.1% |
| Bofors RP30 | <<locked>> | 88% | 35,607 psi | 58% | 2585 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 35,462 psi | 58% | 2549 fps | 96.2% |
| Bofors RP7 | <<locked>> | 80% | 50,096 psi | 82% | 2726 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 34,954 psi | 57% | 2530 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 49,182 psi | 81% | 2776 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 82% | 40,306 psi | 66% | 2602 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 82% | 39,740 psi | 65% | 2592 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,091 psi | 71% | 2615 fps | 100% |
| Hodgdon Retumbo | 59.9 gr | 84% | 33,170 psi | 54% | 2569 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 48,950 psi | 80% | 2808 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,891 psi | 46% | 1588 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,397 psi | 75% | 2661 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,242 psi | 84% | 2749 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 45,121 psi | 74% | 2671 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,436 psi | 65% | 2549 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 82% | 36,477 psi | 60% | 2579 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,042 psi | 59% | 2615 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 48,965 psi | 80% | 2700 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,297 psi | 78% | 2694 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 30,734 psi | 50% | 2365 fps | 97.1% |
| Norma 204 | <<locked>> | 80% | 45,629 psi | 75% | 2707 fps | 98.6% |
| Norma 217 | <<locked>> | 92% | 31,560 psi | 52% | 2520 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 37,231 psi | 61% | 2618 fps | 98.2% |
| Norma URP | <<locked>> | 80% | 46,601 psi | 77% | 2710 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 35,897 psi | 59% | 2579 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 45,469 psi | 75% | 2713 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 82% | 32,155 psi | 53% | 2467 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,601 psi | 47% | 1627 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,514 psi | 78% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,658 psi | 75% | 2766 fps | 100% |
| ReloadSwiss RS 76 | 62.6 gr | 82% | 30,081 psi | 49% | 2477 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 41,553 psi | 68% | 2753 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 40,944 psi | 67% | 2585 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 80% | 39,073 psi | 64% | 2592 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 80% | 50,096 psi | 82% | 2726 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,965 psi | 80% | 2700 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,297 psi | 78% | 2694 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,819 psi | 79% | 2648 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,740 psi | 64% | 2585 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 41,640 psi | 68% | 2575 fps | 96% |
| Somchem S365 | <<locked>> | 80% | 43,700 psi | 72% | 2667 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,552 psi | 65% | 2572 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 80% | 47,993 psi | 79% | 2703 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,316 psi | 56% | 2451 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 47,224 psi | 78% | 2707 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,435 psi | 63% | 2585 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 40,089 psi | 66% | 2671 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 86% | 37,565 psi | 62% | 2602 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 94% | 42,989 psi | 71% | 2766 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,021 psi | 77% | 2661 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,414 psi | 81% | 2782 fps | 99.9% |
| Winchester StaBALL HD | 58.6 gr | 80% | 30,516 psi | 50% | 2543 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,158 psi | 59% | 2500 fps | 96.4% |
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 68 powders for 7 mm Blaser Mag. loaded with the .284 | 168gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,002 fps. ADI AR 2217 gives the best case fill at 100 %, and 68 of the 68 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 168.0 gr projectile in 0.284" calls for a 1:10.5 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, Winchester StaBALL HD rank at the top here: for 7 mm Blaser Mag. with the .284 | 168gr | 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.