Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 150gr | Prvi Partizan HP BT 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, Norma MRP 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>> | 94% | 52,286 psi | 86% | 2936 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 53,838 psi | 88% | 2979 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 54,549 psi | 90% | 3091 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 92% | 54,520 psi | 90% | 3028 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 94% | 52,402 psi | 86% | 3031 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,934 psi | 77% | 2920 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,597 psi | 68% | 2874 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,853 psi | 90% | 3028 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,853 psi | 90% | 3028 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,708 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 52,011 psi | 85% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,172 psi | 89% | 3018 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 94% | 52,286 psi | 86% | 3031 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 53,330 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,591 psi | 86% | 3064 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,490 psi | 88% | 3097 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,694 psi | 90% | 3068 fps | 99.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,414 psi | 79% | 2992 fps | 97.9% |
| Bofors RP5 | <<locked>> | 94% | 52,286 psi | 86% | 3031 fps | 99.1% |
| Bofors RP7 | <<locked>> | 84% | 53,243 psi | 87% | 2927 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,517 psi | 85% | 3009 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 84% | 51,982 psi | 85% | 2972 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 54,781 psi | 90% | 2989 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 92% | 52,518 psi | 86% | 2972 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,013 psi | 90% | 3012 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,085 psi | 90% | 2956 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,358 psi | 84% | 3123 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 84% | 52,040 psi | 85% | 3009 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,985 psi | 61% | 1880 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,534 psi | 90% | 2963 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,462 psi | 89% | 2946 fps | 99.8% |
| IMR 4831 | <<locked>> | 88% | 54,201 psi | 89% | 2969 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,592 psi | 88% | 2956 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 96% | 53,853 psi | 88% | 3068 fps | 98.4% |
| Lovex S065 | <<locked>> | 84% | 51,938 psi | 85% | 2897 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 53,185 psi | 87% | 2940 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,316 psi | 88% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 86% | 51,735 psi | 85% | 2959 fps | 98.7% |
| Norma 217ᴾ | <<locked>> | 100% | 37,246 psi | 61% | 2799 fps | 96.9% |
| Norma MRP | <<locked>> | 92% | 51,909 psi | 85% | 3051 fps | 99.7% |
| Norma URP | <<locked>> | 86% | 52,402 psi | 86% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,389 psi | 89% | 3091 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 54,795 psi | 90% | 3022 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 52,475 psi | 86% | 3018 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 62% | 1919 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,925 psi | 89% | 3002 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 51,938 psi | 85% | 3025 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,982 psi | 85% | 3127 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 46,804 psi | 77% | 2992 fps | 96% |
| Rottweil R 903 | <<locked>> | 82% | 54,288 psi | 89% | 2927 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 52,649 psi | 86% | 2946 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 92% | 53,592 psi | 88% | 3009 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 84% | 53,243 psi | 87% | 2927 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 84% | 51,938 psi | 85% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 53,185 psi | 87% | 2940 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,273 psi | 89% | 2799 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,331 psi | 89% | 2897 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,156 psi | 87% | 3002 fps | 99.1% |
| Somchem S355 | <<locked>> | 82% | 54,128 psi | 89% | 2923 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,070 psi | 89% | 2936 fps | 97.7% |
| Somchem S365 | <<locked>> | 88% | 52,562 psi | 86% | 2963 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,143 psi | 89% | 2979 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 51,793 psi | 85% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,259 psi | 89% | 2953 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 53,722 psi | 88% | 2959 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 86% | 53,345 psi | 88% | 2956 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 52,083 psi | 86% | 2982 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 51,909 psi | 85% | 3045 fps | 97.6% |
| Vihtavuori N565 | <<locked>> | 98% | 51,503 psi | 85% | 3018 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,693 psi | 88% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 52,214 psi | 86% | 2979 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 54,056 psi | 89% | 3143 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,099 psi | 89% | 2976 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% | 32,619 psi | 54% | 2539 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 43,874 psi | 72% | 2805 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 47,239 psi | 78% | 2956 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 36,695 psi | 60% | 2671 fps | 95% |
| ADI AR 2213 | <<locked>> | 88% | 42,728 psi | 70% | 2838 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 96% | 41,002 psi | 67% | 2792 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 92% | 32,271 psi | 53% | 2625 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,999 psi | 61% | 2674 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 36,999 psi | 61% | 2674 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,047 psi | 69% | 2812 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,457 psi | 80% | 2936 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 36,666 psi | 60% | 2667 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,202 psi | 61% | 2723 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,227 psi | 51% | 2569 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,196 psi | 48% | 2526 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,982 psi | 56% | 2703 fps | 98.4% |
| Bofors RP15 | <<locked>> | 86% | 36,898 psi | 61% | 2713 fps | 95.2% |
| Bofors RP30 | <<locked>> | 94% | 39,450 psi | 65% | 2805 fps | 95.4% |
| Bofors RP5 | <<locked>> | 84% | 37,202 psi | 61% | 2723 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 46,804 psi | 77% | 2808 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 39,233 psi | 64% | 2753 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 45,571 psi | 75% | 2858 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 48,138 psi | 79% | 2871 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 86% | 42,801 psi | 70% | 2785 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,831 psi | 74% | 2828 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,624 psi | 65% | 2694 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,927 psi | 61% | 2795 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 44,802 psi | 74% | 2874 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,586 psi | 45% | 1677 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,395 psi | 70% | 2740 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,196 psi | 79% | 2838 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 41,785 psi | 69% | 2753 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,556 psi | 73% | 2789 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 88% | 41,031 psi | 67% | 2815 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 45,687 psi | 75% | 2785 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 44,150 psi | 72% | 2776 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 29,921 psi | 49% | 2467 fps | 95.3% |
| Norma 204 | <<locked>> | 80% | 42,279 psi | 69% | 2776 fps | 96.7% |
| Norma 217 | <<locked>> | 98% | 34,766 psi | 57% | 2730 fps | 95.8% |
| Norma MRP | 59.9 gr | 80% | 33,939 psi | 56% | 2667 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 43,178 psi | 71% | 2795 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 40,669 psi | 67% | 2818 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 42,047 psi | 69% | 2789 fps | 98.9% |
| Ramshot Magnum | <<locked>> | 88% | 36,260 psi | 60% | 2694 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,224 psi | 46% | 1719 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,656 psi | 72% | 2825 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,930 psi | 69% | 2838 fps | 99.7% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,765 psi | 55% | 2703 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,555 psi | 72% | 2923 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 50,937 psi | 84% | 2877 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,640 psi | 67% | 2710 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 80% | 35,998 psi | 59% | 2651 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 46,804 psi | 77% | 2808 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,687 psi | 75% | 2785 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 44,150 psi | 72% | 2776 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,198 psi | 84% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,788 psi | 74% | 2730 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,145 psi | 63% | 2703 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 50,618 psi | 83% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,266 psi | 73% | 2759 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 40,016 psi | 66% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,521 psi | 60% | 2635 fps | 96.2% |
| Vihtavuori N150 | <<locked>> | 80% | 48,631 psi | 80% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,541 psi | 73% | 2789 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 36,158 psi | 59% | 2618 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 43,845 psi | 72% | 2789 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 35,143 psi | 58% | 2651 fps | 99.1% |
| Vihtavuori N560 | 64.4 gr | 86% | 42,163 psi | 69% | 2848 fps | 95% |
| Vihtavuori N565 | <<locked>> | 92% | 41,989 psi | 69% | 2835 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,671 psi | 72% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,788 psi | 75% | 2861 fps | 99% |
| Winchester StaBALL HD | 59.3 gr | 80% | 27,804 psi | 46% | 2575 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,159 psi | 63% | 2674 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 73 powders for 7 mm Blaser Mag. loaded with the .284 | 150gr | Prvi Partizan HP BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,143 fps; across all powders the maximum-charge window runs from 1,880 fps to 3,143 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 150.0 gr projectile in 0.284" calls for a 1:11.5 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, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 150gr | Prvi Partizan HP BT 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.