Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 165gr | Sierra Tipped GameKing bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 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>> | 94% | 53,911 psi | 89% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 51,605 psi | 85% | 2805 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 52,359 psi | 86% | 2920 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 90% | 52,402 psi | 86% | 2861 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 94% | 53,766 psi | 88% | 2923 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,022 psi | 79% | 2818 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,699 psi | 70% | 2782 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 52,620 psi | 86% | 2858 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 52,620 psi | 86% | 2858 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 52,678 psi | 86% | 2864 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,461 psi | 88% | 2874 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 51,996 psi | 85% | 2851 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 53,708 psi | 88% | 2920 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,723 psi | 90% | 2887 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,954 psi | 89% | 2949 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,955 psi | 90% | 2979 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,170 psi | 86% | 2822 fps | 95.9% |
| Bofors RP15 | <<locked>> | 96% | 52,678 psi | 86% | 2900 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,038 psi | 82% | 2890 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 53,708 psi | 88% | 2920 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 54,360 psi | 89% | 2808 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,866 psi | 87% | 2904 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 53,287 psi | 87% | 2858 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 52,663 psi | 86% | 2815 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 53,679 psi | 88% | 2861 fps | 98.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,678 psi | 86% | 2844 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 52,910 psi | 87% | 2785 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,779 psi | 87% | 3018 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,519 psi | 88% | 2894 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,985 psi | 61% | 1775 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,431 psi | 86% | 2795 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,417 psi | 86% | 2779 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 52,127 psi | 86% | 2799 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,766 psi | 90% | 2844 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 96% | 55,114 psi | 90% | 2956 fps | 99.1% |
| Lovex S065 | <<locked>> | 84% | 53,026 psi | 87% | 2776 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,346 psi | 89% | 2822 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,708 psi | 90% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 86% | 52,997 psi | 87% | 2844 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 38,319 psi | 63% | 2707 fps | 98.1% |
| Norma MRP | <<locked>> | 92% | 53,272 psi | 87% | 2936 fps | 100% |
| Norma URP | <<locked>> | 86% | 53,606 psi | 88% | 2841 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 51,982 psi | 85% | 2917 fps | 99% |
| Ramshot Hunter | <<locked>> | 86% | 52,547 psi | 86% | 2848 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 53,983 psi | 89% | 2910 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,913 psi | 62% | 1821 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 51,648 psi | 85% | 2831 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,330 psi | 88% | 2910 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,505 psi | 88% | 3018 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,356 psi | 79% | 2900 fps | 97.3% |
| Rottweil R 904 | <<locked>> | 90% | 53,867 psi | 88% | 2835 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 54,911 psi | 90% | 2894 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 54,360 psi | 89% | 2808 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,026 psi | 87% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,346 psi | 89% | 2822 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 51,996 psi | 85% | 2730 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,476 psi | 89% | 2890 fps | 99.6% |
| Somchem S355 | <<locked>> | 82% | 55,100 psi | 90% | 2795 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,071 psi | 90% | 2822 fps | 98.4% |
| Somchem S365 | <<locked>> | 88% | 53,925 psi | 89% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,025 psi | 85% | 2815 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 82% | 52,823 psi | 87% | 2720 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,025 psi | 85% | 2782 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,882 psi | 90% | 2844 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 54,766 psi | 90% | 2841 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,650 psi | 88% | 2864 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,171 psi | 87% | 2933 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 98% | 52,910 psi | 87% | 2913 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,545 psi | 81% | 2907 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,027 psi | 90% | 2792 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,563 psi | 88% | 2861 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 51,953 psi | 85% | 2969 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 51,634 psi | 85% | 2805 fps | 99.3% |
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% | 33,649 psi | 55% | 2451 fps | 97.7% |
| Accurate 4350 | <<locked>> | 80% | 45,136 psi | 74% | 2697 fps | 100% |
| Accurate MAGPRO | 62.5 gr | 86% | 42,264 psi | 69% | 2730 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 37,666 psi | 62% | 2575 fps | 96.3% |
| ADI AR 2213 | <<locked>> | 84% | 38,276 psi | 63% | 2618 fps | 95% |
| ADI AR 2217 | <<locked>> | 94% | 39,479 psi | 65% | 2641 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 90% | 31,111 psi | 51% | 2487 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,014 psi | 62% | 2579 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,014 psi | 62% | 2579 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,265 psi | 71% | 2707 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,908 psi | 82% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,666 psi | 62% | 2572 fps | 96.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 33,489 psi | 55% | 2513 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,242 psi | 53% | 2480 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,181 psi | 46% | 2392 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,085 psi | 58% | 2615 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,168 psi | 81% | 2769 fps | 95.1% |
| Bofors RP15 | <<locked>> | 84% | 35,621 psi | 58% | 2562 fps | 95.7% |
| Bofors RP30 | <<locked>> | 92% | 38,087 psi | 63% | 2657 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 33,489 psi | 55% | 2513 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 47,950 psi | 79% | 2700 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 37,666 psi | 62% | 2605 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 46,673 psi | 77% | 2746 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 49,327 psi | 81% | 2759 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 40,930 psi | 67% | 2625 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,132 psi | 66% | 2608 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,785 psi | 67% | 2589 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,344 psi | 55% | 2582 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 46,050 psi | 76% | 2769 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,702 psi | 45% | 1585 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,381 psi | 71% | 2635 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,153 psi | 81% | 2723 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 42,873 psi | 70% | 2644 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,016 psi | 66% | 2572 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 86% | 39,305 psi | 65% | 2654 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 46,847 psi | 77% | 2674 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,165 psi | 74% | 2667 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 28,950 psi | 48% | 2329 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 43,352 psi | 71% | 2674 fps | 97.8% |
| Norma 217 | <<locked>> | 94% | 31,531 psi | 52% | 2533 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 35,012 psi | 57% | 2582 fps | 97.1% |
| Norma URP | <<locked>> | 80% | 44,295 psi | 73% | 2687 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 38,972 psi | 64% | 2661 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 43,149 psi | 71% | 2684 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 32,387 psi | 53% | 2484 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,413 psi | 47% | 1627 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,947 psi | 74% | 2720 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,236 psi | 71% | 2740 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,298 psi | 50% | 2493 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,611 psi | 68% | 2766 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 39,015 psi | 64% | 2556 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 36,999 psi | 61% | 2556 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 80% | 47,950 psi | 79% | 2700 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,847 psi | 77% | 2674 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,165 psi | 74% | 2667 fps | 99.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,803 psi | 75% | 2625 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,666 psi | 60% | 2552 fps | 96.2% |
| Somchem S355 | <<locked>> | 80% | 51,895 psi | 85% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,337 psi | 70% | 2602 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 41,234 psi | 68% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,565 psi | 62% | 2539 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 80% | 49,676 psi | 82% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,701 psi | 75% | 2677 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,474 psi | 53% | 2415 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 45,078 psi | 74% | 2684 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,143 psi | 59% | 2552 fps | 99.7% |
| Vihtavuori N560 | 59.9 gr | 84% | 40,379 psi | 66% | 2687 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 90% | 40,408 psi | 66% | 2677 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 96% | 43,004 psi | 71% | 2779 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,570 psi | 73% | 2638 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,905 psi | 77% | 2749 fps | 99.5% |
| Winchester StaBALL HD | 56.5 gr | 80% | 28,645 psi | 47% | 2500 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,113 psi | 56% | 2464 fps | 95.1% |
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 73 powders for 7 mm Blaser Mag. loaded with the .284 | 165gr | Sierra Tipped GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,775 fps to 3,018 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 165.0 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-25 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. Winchester StaBALL HD, Vihtavuori N560, Accurate MAGPRO rank at the top here: for 7 mm Blaser Mag. with the .284 | 165gr | Sierra Tipped GameKing 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.