Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 160gr | NorthFork Bonded Core bullet and 71 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 Norma MRP.
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% | 53,650 psi | 88% | 2867 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,027 psi | 90% | 2904 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 51,953 psi | 85% | 2956 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 90% | 52,330 psi | 86% | 2904 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 53,476 psi | 88% | 2963 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,863 psi | 79% | 2854 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,714 psi | 70% | 2822 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 52,489 psi | 86% | 2900 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 52,489 psi | 86% | 2900 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 86% | 52,315 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,229 psi | 87% | 2917 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 51,866 psi | 85% | 2894 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 53,447 psi | 88% | 2959 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 96% | 54,462 psi | 89% | 2930 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,780 psi | 88% | 2992 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 54,752 psi | 90% | 3022 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 52,663 psi | 86% | 2946 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,864 psi | 82% | 2930 fps | 98.6% |
| Bofors RP5 | <<locked>> | 94% | 53,447 psi | 88% | 2959 fps | 99.5% |
| Bofors RP7 | <<locked>> | 84% | 54,056 psi | 89% | 2848 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 52,895 psi | 87% | 2946 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 84% | 53,069 psi | 87% | 2900 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 52,315 psi | 86% | 2854 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 92% | 53,447 psi | 88% | 2900 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,446 psi | 86% | 2884 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 52,721 psi | 87% | 2828 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,794 psi | 87% | 3061 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 53,301 psi | 88% | 2936 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,014 psi | 61% | 1811 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,257 psi | 86% | 2835 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,141 psi | 86% | 2818 fps | 99.8% |
| IMR 4831 | <<locked>> | 86% | 51,938 psi | 85% | 2841 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 54,839 psi | 90% | 2887 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 96% | 55,071 psi | 90% | 2999 fps | 99% |
| Lovex S065 | <<locked>> | 84% | 52,721 psi | 87% | 2818 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,389 psi | 89% | 2867 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,679 psi | 90% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 86% | 52,939 psi | 87% | 2887 fps | 99.2% |
| Norma 217ᴾ | <<locked>> | 100% | 38,189 psi | 63% | 2743 fps | 97.8% |
| Norma MRP | <<locked>> | 92% | 53,214 psi | 87% | 2982 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 53,679 psi | 88% | 2887 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 51,822 psi | 85% | 2959 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 86% | 52,460 psi | 86% | 2890 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 53,911 psi | 89% | 2953 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,913 psi | 62% | 1854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,071 psi | 90% | 2927 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,156 psi | 87% | 2953 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,330 psi | 88% | 3061 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,167 psi | 79% | 2940 fps | 97% |
| Rottweil R 904 | <<locked>> | 90% | 53,519 psi | 88% | 2871 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 54,752 psi | 90% | 2936 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 84% | 54,056 psi | 89% | 2848 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 52,721 psi | 87% | 2818 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,389 psi | 89% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 51,851 psi | 85% | 2769 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,375 psi | 89% | 2933 fps | 99.5% |
| Somchem S361 | <<locked>> | 90% | 55,042 psi | 90% | 2864 fps | 98.3% |
| Somchem S365 | <<locked>> | 88% | 53,867 psi | 88% | 2890 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 51,895 psi | 85% | 2854 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 52,794 psi | 87% | 2766 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 51,880 psi | 85% | 2825 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 54,839 psi | 90% | 2887 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 54,505 psi | 89% | 2884 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,243 psi | 87% | 2907 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,084 psi | 87% | 2976 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 98% | 52,678 psi | 86% | 2953 fps | 98.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,443 psi | 81% | 2946 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,824 psi | 90% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,301 psi | 88% | 2904 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 51,764 psi | 85% | 3012 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 51,634 psi | 85% | 2848 fps | 99.1% |
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% | 33,417 psi | 55% | 2484 fps | 97.4% |
| Accurate 4350 | <<locked>> | 80% | 44,875 psi | 74% | 2736 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 42,163 psi | 69% | 2769 fps | 95% |
| ADI AR 2209 | <<locked>> | 80% | 37,478 psi | 62% | 2608 fps | 96% |
| ADI AR 2213 | <<locked>> | 86% | 40,959 psi | 67% | 2720 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 94% | 39,334 psi | 65% | 2677 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 90% | 30,893 psi | 51% | 2513 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,811 psi | 62% | 2612 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,811 psi | 62% | 2612 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,076 psi | 71% | 2743 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,748 psi | 82% | 2864 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,463 psi | 62% | 2605 fps | 96% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,621 psi | 58% | 2605 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,097 psi | 53% | 2513 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,007 psi | 46% | 2418 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,911 psi | 57% | 2648 fps | 99.1% |
| Bofors RP15 | <<locked>> | 84% | 35,491 psi | 58% | 2598 fps | 95.3% |
| Bofors RP30 | <<locked>> | 92% | 37,956 psi | 62% | 2694 fps | 95.6% |
| Bofors RP5 | <<locked>> | 82% | 35,621 psi | 58% | 2605 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 47,776 psi | 78% | 2740 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 90% | 37,579 psi | 62% | 2638 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 80% | 46,615 psi | 77% | 2789 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 80% | 49,081 psi | 81% | 2799 fps | 99% |
| Hodgdon H4831 | <<locked>> | 84% | 40,741 psi | 67% | 2661 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 86% | 42,946 psi | 71% | 2710 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,625 psi | 67% | 2628 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,404 psi | 58% | 2677 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 45,992 psi | 76% | 2812 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 46% | 1617 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,178 psi | 71% | 2674 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,182 psi | 81% | 2766 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 42,873 psi | 70% | 2687 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,612 psi | 70% | 2664 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 86% | 39,320 psi | 65% | 2694 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 46,673 psi | 77% | 2717 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 44,962 psi | 74% | 2707 fps | 99.3% |
| Lovex S071 | <<locked>> | 80% | 28,877 psi | 47% | 2362 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 43,047 psi | 71% | 2707 fps | 97.5% |
| Norma 217 | <<locked>> | 96% | 33,547 psi | 55% | 2625 fps | 96% |
| Norma MRP | 58.3 gr | 80% | 34,867 psi | 57% | 2615 fps | 96.8% |
| Norma URP | <<locked>> | 80% | 44,077 psi | 72% | 2723 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 38,914 psi | 64% | 2700 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 42,844 psi | 70% | 2720 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 84% | 32,358 psi | 53% | 2516 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,398 psi | 47% | 1657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,817 psi | 74% | 2759 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,076 psi | 71% | 2776 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,372 psi | 53% | 2589 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,539 psi | 68% | 2802 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 38,827 psi | 64% | 2592 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 80% | 36,782 psi | 60% | 2592 fps | 96% |
| Rottweil R 907 | <<locked>> | 80% | 47,776 psi | 78% | 2740 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,673 psi | 77% | 2717 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 44,962 psi | 74% | 2707 fps | 99.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,571 psi | 75% | 2661 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,463 psi | 60% | 2585 fps | 95.9% |
| Somchem S361 | <<locked>> | 82% | 42,322 psi | 69% | 2638 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 40,988 psi | 67% | 2680 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,333 psi | 61% | 2575 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 80% | 49,487 psi | 81% | 2717 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,469 psi | 75% | 2720 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 34,534 psi | 57% | 2503 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 44,802 psi | 74% | 2723 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 35,984 psi | 59% | 2589 fps | 99.6% |
| Vihtavuori N560 | 61.2 gr | 84% | 40,350 psi | 66% | 2726 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 90% | 40,234 psi | 66% | 2713 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 98% | 45,992 psi | 76% | 2881 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,599 psi | 73% | 2680 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,615 psi | 77% | 2789 fps | 99.4% |
| Winchester StaBALL HD | 57.6 gr | 80% | 28,442 psi | 47% | 2526 fps | 99.7% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,463 psi | 60% | 2556 fps | 95.7% |
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 | 160gr | NorthFork Bonded Core. Hodgdon Retumbo delivers the highest muzzle velocity at 3,061 fps; across all powders the maximum-charge window runs from 1,811 fps to 3,061 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 160.0 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, 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, Norma MRP rank at the top here: for 7 mm Blaser Mag. with the .284 | 160gr | NorthFork Bonded Core 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.