Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 140gr | Berger VLD Hunting bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, 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>> | 96% | 52,054 psi | 85% | 3022 fps | 99.7% |
| Accurate 4350 | <<locked>> | 88% | 53,679 psi | 88% | 3071 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,215 psi | 89% | 3173 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 82% | 52,504 psi | 86% | 2989 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,549 psi | 90% | 3120 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 52,228 psi | 86% | 3110 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,667 psi | 63% | 2874 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,345 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,520 psi | 90% | 3130 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 51,953 psi | 85% | 3091 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,143 psi | 89% | 3107 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 51,750 psi | 85% | 3107 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,605 psi | 86% | 3094 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,559 psi | 80% | 3081 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,678 psi | 86% | 3182 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,447 psi | 89% | 3153 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 54,230 psi | 89% | 3025 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,469 psi | 73% | 2999 fps | 96.1% |
| Bofors RP5 | <<locked>> | 96% | 51,750 psi | 85% | 3107 fps | 98.4% |
| Bofors RP7 | <<locked>> | 86% | 53,592 psi | 88% | 3015 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,051 psi | 79% | 3022 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 54,360 psi | 89% | 3041 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,127 psi | 86% | 3064 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 84% | 51,619 psi | 85% | 3018 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 94% | 52,301 psi | 86% | 3048 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,868 psi | 90% | 3094 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,795 psi | 90% | 3045 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,587 psi | 78% | 3130 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 86% | 51,996 psi | 85% | 3094 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,680 psi | 60% | 1932 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,752 psi | 90% | 3054 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,114 psi | 90% | 3045 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 54,128 psi | 89% | 3061 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,867 psi | 88% | 3041 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 53,490 psi | 88% | 3146 fps | 97.6% |
| Lovex S065 | <<locked>> | 86% | 52,141 psi | 86% | 2989 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 53,330 psi | 88% | 3031 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,617 psi | 81% | 2979 fps | 99.5% |
| Norma 204 | <<locked>> | 88% | 51,808 psi | 85% | 3045 fps | 98.1% |
| Norma MRP | <<locked>> | 96% | 55,042 psi | 90% | 3196 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 52,330 psi | 86% | 3051 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,969 psi | 89% | 3166 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 54,723 psi | 90% | 3110 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,257 psi | 86% | 3100 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,492 psi | 62% | 1978 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,215 psi | 89% | 3028 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,300 psi | 84% | 3081 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,664 psi | 88% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 51,953 psi | 85% | 3120 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,877 psi | 79% | 3127 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 54,346 psi | 89% | 3022 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,562 psi | 86% | 3025 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 94% | 53,490 psi | 88% | 3094 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 53,592 psi | 88% | 3015 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,141 psi | 86% | 2989 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 88% | 53,330 psi | 88% | 3031 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,475 psi | 86% | 3031 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,810 psi | 90% | 2897 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,708 psi | 90% | 2989 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,040 psi | 87% | 3091 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 54,302 psi | 89% | 3018 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,230 psi | 89% | 3015 fps | 96.9% |
| Somchem S365 | <<locked>> | 90% | 52,156 psi | 86% | 3058 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,085 psi | 89% | 3064 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 84% | 52,011 psi | 85% | 2936 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,259 psi | 89% | 3045 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,432 psi | 88% | 3038 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 53,606 psi | 88% | 3051 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,634 psi | 85% | 3068 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,056 psi | 90% | 3186 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,010 psi | 84% | 3094 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,940 psi | 89% | 3005 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,388 psi | 86% | 3071 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,460 psi | 86% | 3225 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,896 psi | 88% | 3054 fps | 98.5% |
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% | 32,329 psi | 53% | 2608 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 40,727 psi | 67% | 2828 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 50,459 psi | 83% | 3104 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 49,298 psi | 81% | 2933 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,989 psi | 69% | 2874 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 45,788 psi | 75% | 2982 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 36,289 psi | 60% | 2808 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,082 psi | 82% | 2956 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,378 psi | 65% | 2841 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,962 psi | 74% | 2969 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,131 psi | 64% | 2805 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,552 psi | 65% | 2858 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,037 psi | 48% | 2582 fps | 97.8% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,980 psi | 51% | 2651 fps | 95.3% |
| Alliant Reloder-26 | 61 gr | 80% | 31,285 psi | 51% | 2707 fps | 96.5% |
| Bofors RP15 | <<locked>> | 90% | 39,030 psi | 64% | 2844 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,865 psi | 84% | 2972 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,597 psi | 68% | 2933 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 39,552 psi | 65% | 2858 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,309 psi | 73% | 2841 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,061 psi | 69% | 2890 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 50,995 psi | 84% | 2989 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 42,583 psi | 70% | 2881 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 45,469 psi | 75% | 2900 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 48,979 psi | 80% | 2989 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,037 psi | 79% | 2969 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,941 psi | 61% | 2723 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,044 psi | 64% | 2923 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 41,626 psi | 68% | 2894 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 45% | 1726 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,784 psi | 65% | 2762 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,745 psi | 75% | 2874 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 39,088 psi | 64% | 2779 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,543 psi | 78% | 2923 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 43,671 psi | 72% | 2949 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 43,221 psi | 71% | 2818 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 41,452 psi | 68% | 2799 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 31,589 psi | 52% | 2589 fps | 95.1% |
| Norma 204 | <<locked>> | 82% | 42,380 psi | 70% | 2858 fps | 95.8% |
| Norma MRP | 62.2 gr | 84% | 36,158 psi | 59% | 2805 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 40,263 psi | 66% | 2822 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 43,482 psi | 71% | 2959 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,175 psi | 64% | 2808 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 38,841 psi | 64% | 2828 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 46% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,734 psi | 83% | 2966 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,703 psi | 78% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,683 psi | 67% | 2851 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,059 psi | 64% | 2858 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,984 psi | 59% | 2835 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 47,747 psi | 78% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,352 psi | 71% | 2848 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 40,814 psi | 67% | 2844 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 44,309 psi | 73% | 2841 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,221 psi | 71% | 2818 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 80% | 41,452 psi | 68% | 2799 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,023 psi | 80% | 2972 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,617 psi | 80% | 2805 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,366 psi | 70% | 2762 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,437 psi | 66% | 2838 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 47,834 psi | 79% | 2913 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,514 psi | 78% | 2897 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 36,840 psi | 60% | 2776 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,405 psi | 60% | 2710 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 45,716 psi | 75% | 2835 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,655 psi | 68% | 2818 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 38,305 psi | 63% | 2746 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 41,205 psi | 68% | 2822 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 32,329 psi | 53% | 2661 fps | 97.8% |
| Vihtavuori N560 | 68.1 gr | 92% | 48,066 psi | 79% | 3058 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 96% | 44,251 psi | 73% | 2963 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,872 psi | 67% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,772 psi | 70% | 2884 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,744 psi | 42% | 2562 fps | 97.1% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,770 psi | 67% | 2808 fps | 95.5% |
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 80 powders for 7 mm Blaser Mag. loaded with the .284 | 140gr | Berger VLD Hunting. Winchester StaBALL HD delivers the highest muzzle velocity at 3,225 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,225 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:10.5 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 140gr | Berger VLD Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.