Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 152gr | Barnes LRX BT 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% | 52,272 psi | 86% | 2917 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 53,998 psi | 89% | 2959 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,824 psi | 90% | 3074 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 52,779 psi | 87% | 2877 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 51,576 psi | 85% | 2959 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 52,808 psi | 87% | 3012 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 43,947 psi | 72% | 2835 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,740 psi | 64% | 2785 fps | 97.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 51,692 psi | 85% | 2953 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,838 psi | 88% | 2900 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 51,576 psi | 85% | 2966 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,591 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,578 psi | 90% | 3002 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,301 psi | 86% | 3009 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,185 psi | 87% | 2989 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,139 psi | 81% | 2986 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,359 psi | 88% | 3077 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,868 psi | 90% | 3051 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 54,462 psi | 89% | 2913 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,802 psi | 74% | 2907 fps | 97% |
| Bofors RP5 | <<locked>> | 96% | 52,301 psi | 86% | 3009 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 53,722 psi | 88% | 2910 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,443 psi | 80% | 2930 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 54,723 psi | 90% | 2936 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,649 psi | 86% | 2963 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 52,156 psi | 86% | 2920 fps | 99% |
| Hodgdon H4831 | <<locked>> | 94% | 52,823 psi | 87% | 2953 fps | 97.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,764 psi | 85% | 2936 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,011 psi | 85% | 2890 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,022 psi | 79% | 3038 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 52,533 psi | 86% | 2995 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 60% | 1847 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,114 psi | 90% | 2946 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,214 psi | 86% | 2884 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 54,636 psi | 90% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,433 psi | 89% | 2943 fps | 97.8% |
| IMR 7828 SSC | <<locked>> | 98% | 54,230 psi | 89% | 3051 fps | 98.4% |
| Lovex S065 | <<locked>> | 86% | 52,214 psi | 86% | 2877 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,592 psi | 88% | 2923 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,676 psi | 82% | 2877 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 52,475 psi | 86% | 2946 fps | 98.7% |
| Norma MRP | <<locked>> | 94% | 51,837 psi | 85% | 3031 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 52,736 psi | 87% | 2946 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,636 psi | 90% | 3068 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 51,793 psi | 85% | 2949 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,837 psi | 87% | 3002 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 61% | 1890 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,491 psi | 89% | 2920 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,866 psi | 85% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,128 psi | 89% | 2986 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,388 psi | 86% | 3012 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,356 psi | 79% | 3035 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 54,592 psi | 90% | 2910 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,229 psi | 87% | 2930 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 53,838 psi | 88% | 2989 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 86% | 53,722 psi | 88% | 2910 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,214 psi | 86% | 2877 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,592 psi | 88% | 2923 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,765 psi | 87% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,938 psi | 85% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,056 psi | 90% | 2884 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,388 psi | 88% | 2986 fps | 99.1% |
| Somchem S355 | <<locked>> | 84% | 54,578 psi | 90% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,737 psi | 90% | 2920 fps | 97.7% |
| Somchem S365 | <<locked>> | 90% | 52,562 psi | 86% | 2946 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,360 psi | 89% | 2963 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 84% | 52,315 psi | 86% | 2828 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,810 psi | 90% | 2940 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,012 psi | 89% | 2940 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 88% | 53,853 psi | 88% | 2943 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,025 psi | 85% | 2963 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,996 psi | 85% | 3025 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,285 psi | 84% | 2995 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,360 psi | 89% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,649 psi | 86% | 2963 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,592 psi | 88% | 3120 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,520 psi | 90% | 2959 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% | 29,878 psi | 49% | 2454 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 40,799 psi | 67% | 2730 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 47,268 psi | 78% | 2940 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 49,632 psi | 81% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,363 psi | 65% | 2713 fps | 95.8% |
| ADI AR 2213 | 62.5 gr | 90% | 42,917 psi | 70% | 2822 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 41,002 psi | 67% | 2769 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 34,084 psi | 56% | 2661 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 37,159 psi | 61% | 2657 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,372 psi | 83% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,624 psi | 65% | 2743 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,440 psi | 75% | 2864 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 36,796 psi | 60% | 2654 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,173 psi | 61% | 2703 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,964 psi | 48% | 2490 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 28,863 psi | 47% | 2500 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,198 psi | 51% | 2615 fps | 97.3% |
| Bofors RP15 | <<locked>> | 88% | 36,680 psi | 60% | 2690 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,923 psi | 84% | 2861 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 39,117 psi | 64% | 2782 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 37,173 psi | 61% | 2703 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,454 psi | 73% | 2743 fps | 98.2% |
| Hodgdon H1000 | <<locked>> | 94% | 39,479 psi | 65% | 2740 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 51,169 psi | 84% | 2881 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,786 psi | 70% | 2779 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 80% | 45,730 psi | 75% | 2802 fps | 97.9% |
| Hodgdon H4831 | <<locked>> | 90% | 45,992 psi | 76% | 2831 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,078 psi | 74% | 2812 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,086 psi | 61% | 2625 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,767 psi | 60% | 2772 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,018 psi | 69% | 2799 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 45% | 1647 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,045 psi | 66% | 2671 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,832 psi | 75% | 2772 fps | 98.8% |
| IMR 4831 | <<locked>> | 80% | 39,044 psi | 64% | 2677 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,976 psi | 74% | 2772 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 90% | 41,060 psi | 67% | 2792 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 43,308 psi | 71% | 2720 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 41,539 psi | 68% | 2703 fps | 98.2% |
| Lovex S071 | <<locked>> | 86% | 31,299 psi | 51% | 2493 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 39,711 psi | 65% | 2700 fps | 95.8% |
| Norma MRP | 58.8 gr | 82% | 33,707 psi | 55% | 2648 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 40,495 psi | 66% | 2723 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 40,741 psi | 67% | 2799 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,363 psi | 65% | 2713 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 90% | 36,172 psi | 59% | 2674 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 46% | 1690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,053 psi | 84% | 2864 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,327 psi | 79% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,712 psi | 67% | 2749 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,407 psi | 65% | 2766 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 33,591 psi | 55% | 2680 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 47,892 psi | 79% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 40,857 psi | 67% | 2697 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 84% | 38,406 psi | 63% | 2690 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,454 psi | 73% | 2743 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,308 psi | 71% | 2720 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 41,539 psi | 68% | 2703 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,400 psi | 81% | 2867 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,776 psi | 80% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,337 psi | 70% | 2661 fps | 98.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,058 psi | 62% | 2687 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 48,022 psi | 79% | 2805 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 44,657 psi | 73% | 2746 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,101 psi | 61% | 2677 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 33,982 psi | 56% | 2559 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 45,948 psi | 75% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,930 psi | 69% | 2720 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 35,926 psi | 59% | 2598 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 41,321 psi | 68% | 2723 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 32,242 psi | 53% | 2569 fps | 98.4% |
| Vihtavuori N560 | 64.6 gr | 90% | 45,324 psi | 74% | 2897 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 94% | 41,626 psi | 68% | 2808 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,046 psi | 67% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,989 psi | 71% | 2782 fps | 98.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,512 psi | 42% | 2477 fps | 98% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,348 psi | 63% | 2661 fps | 95.6% |
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 | 152gr | Barnes LRX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,120 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,120 fps. ADI AR 2217 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 152.0 gr projectile in 0.284" calls for a 1:9.0 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for 7 mm Blaser Mag. with the .284 | 152gr | Barnes LRX 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.