Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 150gr | Peregrine VLR-4 bullet and 77 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.
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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 51,721 psi | 85% | 2927 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 53,476 psi | 88% | 2972 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,244 psi | 89% | 3081 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 82% | 52,388 psi | 86% | 2890 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,723 psi | 90% | 3028 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 52,272 psi | 86% | 3022 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,348 psi | 63% | 2792 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,781 psi | 90% | 3022 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,781 psi | 90% | 3022 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,171 psi | 87% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,752 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,069 psi | 85% | 2995 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,070 psi | 89% | 3012 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 51,721 psi | 85% | 3018 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,591 psi | 86% | 2999 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,588 psi | 80% | 2995 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,649 psi | 86% | 3087 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,302 psi | 89% | 3061 fps | 99.1% |
| Bofors RP3 | <<locked>> | 82% | 54,012 psi | 89% | 2927 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,440 psi | 73% | 2913 fps | 96.8% |
| Bofors RP5 | <<locked>> | 96% | 51,721 psi | 85% | 3018 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 53,330 psi | 88% | 2920 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,950 psi | 79% | 2933 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 82% | 54,288 psi | 89% | 2949 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,185 psi | 86% | 2972 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 51,735 psi | 85% | 2930 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 52,576 psi | 86% | 2966 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,926 psi | 90% | 3005 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,911 psi | 90% | 2953 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,471 psi | 78% | 3045 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 86% | 52,243 psi | 86% | 3005 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 60% | 1857 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,665 psi | 90% | 2959 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,056 psi | 90% | 2949 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 54,128 psi | 89% | 2966 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,969 psi | 89% | 2953 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 53,650 psi | 88% | 3058 fps | 98.2% |
| Lovex S065 | <<locked>> | 86% | 51,822 psi | 85% | 2890 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 53,156 psi | 87% | 2936 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,197 psi | 81% | 2887 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 51,996 psi | 85% | 2956 fps | 98.5% |
| Norma MRP | <<locked>> | 94% | 51,285 psi | 84% | 3041 fps | 99.6% |
| Norma URP | <<locked>> | 88% | 52,272 psi | 86% | 2956 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,027 psi | 89% | 3074 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 54,810 psi | 90% | 3018 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,170 psi | 86% | 3009 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 61% | 1903 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,085 psi | 89% | 2933 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,372 psi | 84% | 2982 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,577 psi | 88% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,127 psi | 86% | 3028 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,805 psi | 78% | 3041 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 84% | 54,143 psi | 89% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,779 psi | 87% | 2940 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 53,301 psi | 88% | 2999 fps | 99% |
| Rottweil R 907 | <<locked>> | 86% | 53,330 psi | 88% | 2920 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 51,822 psi | 85% | 2890 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 53,156 psi | 87% | 2936 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,330 psi | 86% | 2933 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,911 psi | 90% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,636 psi | 90% | 2894 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,852 psi | 87% | 2995 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 54,172 psi | 89% | 2920 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,244 psi | 89% | 2930 fps | 97.5% |
| Somchem S365 | <<locked>> | 90% | 52,025 psi | 85% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,838 psi | 88% | 2972 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 84% | 51,924 psi | 85% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,331 psi | 89% | 2949 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,461 psi | 88% | 2949 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 88% | 53,374 psi | 88% | 2956 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,853 psi | 90% | 3025 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,416 psi | 84% | 3031 fps | 97.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,662 psi | 83% | 3002 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,896 psi | 88% | 2913 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,185 psi | 86% | 2972 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,794 psi | 87% | 3130 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,012 psi | 89% | 2969 fps | 98.9% |
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>> | 82% | 31,778 psi | 52% | 2520 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 40,422 psi | 66% | 2736 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 46,963 psi | 77% | 2949 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 49,298 psi | 81% | 2838 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,030 psi | 64% | 2723 fps | 95.6% |
| ADI AR 2213 | 62.7 gr | 90% | 42,743 psi | 70% | 2831 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 96% | 33,750 psi | 55% | 2664 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,233 psi | 64% | 2723 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,233 psi | 64% | 2723 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,995 psi | 82% | 2861 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,291 psi | 65% | 2753 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,991 psi | 74% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,841 psi | 64% | 2717 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 36,796 psi | 60% | 2713 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,689 psi | 47% | 2500 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,574 psi | 50% | 2572 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,835 psi | 51% | 2618 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 38,899 psi | 64% | 2762 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 50,517 psi | 83% | 2874 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,452 psi | 68% | 2851 fps | 95.9% |
| Bofors RP5 | <<locked>> | 86% | 36,796 psi | 60% | 2713 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,121 psi | 72% | 2753 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 41,901 psi | 69% | 2808 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 50,778 psi | 83% | 2890 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,409 psi | 70% | 2789 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 45,324 psi | 74% | 2812 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 45,745 psi | 75% | 2841 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 90% | 44,889 psi | 74% | 2825 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,753 psi | 60% | 2635 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,390 psi | 60% | 2776 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 41,568 psi | 68% | 2808 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 45% | 1663 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,726 psi | 65% | 2677 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,513 psi | 75% | 2782 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 38,696 psi | 64% | 2687 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,599 psi | 73% | 2782 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 43,584 psi | 72% | 2864 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 42,989 psi | 71% | 2730 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 41,220 psi | 68% | 2713 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 30,980 psi | 51% | 2500 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 39,349 psi | 65% | 2710 fps | 95.6% |
| Norma MRP | 58.9 gr | 82% | 33,359 psi | 55% | 2654 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 40,147 psi | 66% | 2733 fps | 99.4% |
| Ramshot Grand | <<locked>> | 90% | 40,306 psi | 66% | 2805 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 39,001 psi | 64% | 2723 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 35,766 psi | 59% | 2677 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,804 psi | 46% | 1699 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,662 psi | 83% | 2874 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,848 psi | 79% | 2927 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,321 psi | 66% | 2759 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,030 psi | 64% | 2772 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,214 psi | 55% | 2684 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 47,500 psi | 78% | 2818 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,337 psi | 71% | 2766 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 84% | 38,029 psi | 62% | 2700 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,121 psi | 72% | 2753 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,989 psi | 71% | 2730 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 41,220 psi | 68% | 2713 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,994 psi | 80% | 2877 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,472 psi | 80% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,018 psi | 69% | 2674 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,681 psi | 62% | 2694 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 47,645 psi | 78% | 2818 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,295 psi | 73% | 2753 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 36,724 psi | 60% | 2687 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,071 psi | 59% | 2625 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 45,600 psi | 75% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,582 psi | 68% | 2730 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 35,592 psi | 58% | 2605 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 40,973 psi | 67% | 2733 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 31,908 psi | 52% | 2575 fps | 98.2% |
| Vihtavuori N560 | 64.7 gr | 90% | 44,831 psi | 74% | 2904 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 96% | 44,106 psi | 72% | 2877 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,683 psi | 67% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,598 psi | 70% | 2795 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,251 psi | 41% | 2480 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 37,956 psi | 62% | 2664 fps | 95.3% |
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 77 powders for 7 mm Blaser Mag. loaded with the .284 | 150gr | Peregrine VLR-4. Winchester StaBALL HD delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,130 fps. ADI AR 2225 gives the best case fill at 100 %, and 77 of the 77 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 | Peregrine VLR-4 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.