Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 150gr | Osprey Virtus bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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>> | 96% | 52,098 psi | 86% | 2933 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 53,664 psi | 88% | 2972 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,317 psi | 89% | 3081 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 52,547 psi | 86% | 2894 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,868 psi | 90% | 3031 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 52,649 psi | 86% | 3028 fps | 97.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,580 psi | 63% | 2795 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 51,590 psi | 85% | 2969 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,592 psi | 88% | 2917 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,897 psi | 90% | 3038 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,243 psi | 86% | 2999 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,447 psi | 89% | 3018 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,127 psi | 86% | 3025 fps | 98.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,997 psi | 87% | 3002 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,704 psi | 80% | 2995 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,808 psi | 87% | 3087 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,665 psi | 90% | 3064 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 54,230 psi | 89% | 2930 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,570 psi | 73% | 2917 fps | 96.8% |
| Bofors RP5 | <<locked>> | 96% | 52,127 psi | 86% | 3025 fps | 98.9% |
| Bofors RP7 | <<locked>> | 86% | 53,476 psi | 88% | 2923 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,269 psi | 79% | 2943 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 82% | 54,433 psi | 89% | 2949 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,344 psi | 86% | 2976 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 51,909 psi | 85% | 2933 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 94% | 52,663 psi | 86% | 2966 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,634 psi | 85% | 2949 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,085 psi | 90% | 2953 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,790 psi | 78% | 3051 fps | 99% |
| Hodgdon Superformance | <<locked>> | 86% | 52,373 psi | 86% | 3009 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,651 psi | 60% | 1860 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,056 psi | 90% | 2966 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 51,996 psi | 85% | 2900 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,288 psi | 89% | 2966 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,085 psi | 89% | 2956 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 53,737 psi | 88% | 3061 fps | 98.2% |
| Lovex S065 | <<locked>> | 86% | 52,214 psi | 86% | 2897 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 53,534 psi | 88% | 2943 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,559 psi | 81% | 2894 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 52,141 psi | 86% | 2959 fps | 98.6% |
| Norma MRP | <<locked>> | 94% | 51,648 psi | 85% | 3048 fps | 99.6% |
| Norma URP | <<locked>> | 88% | 52,678 psi | 86% | 2963 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,418 psi | 89% | 3084 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 54,955 psi | 90% | 3018 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,562 psi | 86% | 3015 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 61% | 1900 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,462 psi | 89% | 2940 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,808 psi | 85% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,737 psi | 88% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,243 psi | 86% | 3031 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,080 psi | 79% | 3045 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 54,346 psi | 89% | 2927 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,881 psi | 87% | 2943 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 53,708 psi | 88% | 3005 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 53,476 psi | 88% | 2923 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,214 psi | 86% | 2897 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 53,534 psi | 88% | 2943 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,475 psi | 86% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,071 psi | 90% | 2805 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,056 psi | 90% | 2900 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,258 psi | 87% | 3002 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 54,317 psi | 89% | 2923 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,302 psi | 89% | 2933 fps | 97.5% |
| Somchem S365 | <<locked>> | 90% | 52,446 psi | 86% | 2963 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,244 psi | 89% | 2979 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 52,054 psi | 85% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,447 psi | 89% | 2953 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,548 psi | 88% | 2953 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 53,534 psi | 88% | 2959 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,634 psi | 85% | 2976 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,779 psi | 85% | 3038 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,010 psi | 84% | 3005 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,244 psi | 89% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,562 psi | 86% | 2979 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,185 psi | 87% | 3136 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,346 psi | 89% | 2972 fps | 99% |
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% | 29,704 psi | 49% | 2464 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 40,582 psi | 67% | 2743 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 47,079 psi | 77% | 2953 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 49,458 psi | 81% | 2841 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,160 psi | 64% | 2726 fps | 95.6% |
| ADI AR 2213 | 62.9 gr | 90% | 42,844 psi | 70% | 2838 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 33,823 psi | 56% | 2667 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,566 psi | 65% | 2730 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,169 psi | 82% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,450 psi | 65% | 2756 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,194 psi | 74% | 2881 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,175 psi | 64% | 2726 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 36,912 psi | 61% | 2717 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,819 psi | 47% | 2500 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,690 psi | 50% | 2575 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,966 psi | 51% | 2621 fps | 97.1% |
| Bofors RP15 | <<locked>> | 90% | 39,015 psi | 64% | 2762 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 50,676 psi | 83% | 2877 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 38,943 psi | 64% | 2795 fps | 95% |
| Bofors RP5 | <<locked>> | 86% | 36,912 psi | 61% | 2717 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 44,266 psi | 73% | 2756 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 39,175 psi | 64% | 2746 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 50,923 psi | 84% | 2894 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,554 psi | 70% | 2792 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,513 psi | 75% | 2815 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 45,876 psi | 75% | 2844 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,976 psi | 74% | 2828 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,912 psi | 61% | 2638 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,477 psi | 60% | 2779 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 41,727 psi | 69% | 2812 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 45% | 1660 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,856 psi | 65% | 2684 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,658 psi | 75% | 2785 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 38,856 psi | 64% | 2690 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,715 psi | 73% | 2785 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 92% | 43,903 psi | 72% | 2874 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 43,134 psi | 71% | 2733 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 41,350 psi | 68% | 2717 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 31,111 psi | 51% | 2503 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 39,523 psi | 65% | 2713 fps | 95.6% |
| Norma MRP | 59.1 gr | 82% | 33,460 psi | 55% | 2657 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 40,292 psi | 66% | 2736 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 40,640 psi | 67% | 2812 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 39,146 psi | 64% | 2726 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 36,056 psi | 59% | 2684 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 46% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,821 psi | 83% | 2877 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,022 psi | 79% | 2930 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,480 psi | 66% | 2762 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,146 psi | 64% | 2776 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,315 psi | 55% | 2687 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 47,674 psi | 78% | 2822 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,497 psi | 71% | 2769 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 84% | 38,159 psi | 63% | 2703 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 44,266 psi | 73% | 2756 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,134 psi | 71% | 2733 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 41,350 psi | 68% | 2717 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,139 psi | 81% | 2881 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,646 psi | 80% | 2713 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,134 psi | 69% | 2674 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,811 psi | 62% | 2697 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 47,819 psi | 79% | 2822 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,367 psi | 73% | 2756 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 36,883 psi | 61% | 2690 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,230 psi | 59% | 2628 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 45,759 psi | 75% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,727 psi | 69% | 2733 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 35,694 psi | 59% | 2608 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 41,104 psi | 67% | 2736 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,068 psi | 53% | 2579 fps | 98.2% |
| Vihtavuori N560 | 64.9 gr | 90% | 44,947 psi | 74% | 2907 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 96% | 44,440 psi | 73% | 2884 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,814 psi | 67% | 2697 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,786 psi | 70% | 2799 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,353 psi | 42% | 2484 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,058 psi | 62% | 2671 fps | 95.4% |
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 76 powders for 7 mm Blaser Mag. loaded with the .284 | 150gr | Osprey Virtus. Winchester StaBALL HD delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,860 fps to 3,136 fps. ADI AR 2225 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for 7 mm Blaser Mag. with the .284 | 150gr | Osprey Virtus 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.