Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 140gr | Barnes BND SPIT-FIRE bullet and 77 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>> | 98% | 54,781 psi | 90% | 3061 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 52,881 psi | 87% | 3054 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 53,330 psi | 88% | 3150 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 82% | 51,764 psi | 85% | 2969 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,925 psi | 89% | 3104 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 96% | 51,430 psi | 84% | 3091 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,058 psi | 62% | 2851 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,779 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,737 psi | 88% | 3117 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,998 psi | 90% | 3133 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,287 psi | 87% | 3087 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,607 psi | 90% | 3156 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 51,619 psi | 85% | 3077 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,732 psi | 78% | 3064 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,445 psi | 84% | 3159 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,548 psi | 88% | 3136 fps | 98.5% |
| Bofors RP3 | <<locked>> | 82% | 53,417 psi | 88% | 3012 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,607 psi | 90% | 3156 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 52,881 psi | 87% | 2999 fps | 99% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,355 psi | 78% | 2999 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 82% | 53,838 psi | 88% | 3031 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,868 psi | 90% | 3107 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 54,505 psi | 89% | 3064 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 51,706 psi | 85% | 3035 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,012 psi | 89% | 3074 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,041 psi | 89% | 3031 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,862 psi | 77% | 3110 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 86% | 51,387 psi | 84% | 3081 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,651 psi | 60% | 1926 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,491 psi | 89% | 3005 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,114 psi | 89% | 3038 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,418 psi | 89% | 3028 fps | 99.4% |
| IMR 4831 | <<locked>> | 90% | 53,417 psi | 88% | 3048 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,330 psi | 88% | 3025 fps | 96.9% |
| IMR 7828 SSC | <<locked>> | 98% | 52,678 psi | 86% | 3127 fps | 97.3% |
| Lovex S062 | <<locked>> | 82% | 55,013 psi | 90% | 2999 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,795 psi | 90% | 3028 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 52,634 psi | 86% | 3015 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,762 psi | 80% | 2963 fps | 99.4% |
| Norma 204 | <<locked>> | 90% | 54,897 psi | 90% | 3091 fps | 98.5% |
| Norma MRP | <<locked>> | 96% | 54,128 psi | 89% | 3179 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 55,085 psi | 90% | 3091 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,098 psi | 87% | 3146 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 90% | 54,085 psi | 89% | 3097 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,213 psi | 84% | 3077 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,260 psi | 61% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,548 psi | 88% | 3012 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,302 psi | 89% | 3123 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,939 psi | 87% | 3077 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,853 psi | 90% | 3163 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,963 psi | 77% | 3104 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 84% | 53,780 psi | 88% | 3012 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,967 psi | 85% | 3009 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 94% | 52,591 psi | 86% | 3074 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 86% | 52,881 psi | 87% | 2999 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,795 psi | 90% | 3028 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 55,013 psi | 90% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,634 psi | 86% | 3015 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,114 psi | 90% | 3071 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,302 psi | 89% | 2884 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,114 psi | 89% | 2972 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,141 psi | 86% | 3071 fps | 98.4% |
| Somchem S355 | <<locked>> | 84% | 53,519 psi | 88% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,476 psi | 88% | 3002 fps | 96.7% |
| Somchem S365 | <<locked>> | 92% | 54,984 psi | 90% | 3097 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,171 psi | 87% | 3048 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 86% | 54,955 psi | 90% | 2979 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,534 psi | 88% | 3031 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,605 psi | 86% | 3022 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 88% | 52,895 psi | 87% | 3038 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,143 psi | 89% | 3104 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,201 psi | 89% | 3166 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,937 psi | 82% | 3071 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,098 psi | 87% | 2992 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 51,416 psi | 84% | 3048 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,314 psi | 84% | 3209 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,055 psi | 87% | 3038 fps | 98.3% |
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% | 31,749 psi | 52% | 2592 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 40,147 psi | 66% | 2815 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 94% | 49,632 psi | 81% | 3084 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 48,776 psi | 80% | 2920 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,350 psi | 68% | 2854 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 92% | 45,034 psi | 74% | 2959 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 98% | 35,723 psi | 59% | 2789 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,487 psi | 81% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,696 psi | 64% | 2822 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,425 psi | 73% | 2956 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 41,075 psi | 67% | 2844 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,957 psi | 64% | 2841 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,631 psi | 47% | 2566 fps | 97.5% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,518 psi | 53% | 2697 fps | 96.1% |
| Alliant Reloder-26 | 60.2 gr | 80% | 30,719 psi | 50% | 2684 fps | 96.1% |
| Bofors RP15 | <<locked>> | 92% | 41,060 psi | 67% | 2887 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 50,053 psi | 82% | 2956 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 38,957 psi | 64% | 2841 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 43,816 psi | 72% | 2828 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 98% | 44,280 psi | 73% | 2936 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 50,227 psi | 82% | 2969 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 42,061 psi | 69% | 2864 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 80% | 44,788 psi | 74% | 2884 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 92% | 48,167 psi | 79% | 2969 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,253 psi | 78% | 2953 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,419 psi | 60% | 2710 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,537 psi | 63% | 2904 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 41,031 psi | 67% | 2877 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 45% | 1722 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,329 psi | 84% | 2953 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,363 psi | 65% | 2749 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,063 psi | 74% | 2854 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 38,392 psi | 63% | 2759 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,992 psi | 77% | 2907 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 94% | 46,079 psi | 76% | 2999 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 51,590 psi | 85% | 2946 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,699 psi | 70% | 2805 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 40,973 psi | 67% | 2785 fps | 97.4% |
| Lovex S071 | <<locked>> | 88% | 33,185 psi | 54% | 2628 fps | 95.7% |
| Norma 204 | <<locked>> | 82% | 41,742 psi | 69% | 2841 fps | 95.5% |
| Norma MRP | 61.4 gr | 84% | 35,578 psi | 58% | 2789 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 39,740 psi | 65% | 2805 fps | 99% |
| Ramshot Grand | <<locked>> | 92% | 42,917 psi | 70% | 2940 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 38,537 psi | 63% | 2792 fps | 97.4% |
| Ramshot Magnum | <<locked>> | 92% | 38,203 psi | 63% | 2808 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 46% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,256 psi | 83% | 2956 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,181 psi | 77% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,987 psi | 66% | 2835 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,638 psi | 63% | 2844 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,389 psi | 58% | 2812 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 47,152 psi | 77% | 2900 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,614 psi | 75% | 2890 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 86% | 40,364 psi | 66% | 2831 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 43,816 psi | 72% | 2828 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,699 psi | 70% | 2805 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 51,590 psi | 85% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,973 psi | 67% | 2785 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,283 psi | 79% | 2956 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,051 psi | 79% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,785 psi | 69% | 2746 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,987 psi | 66% | 2825 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 47,297 psi | 78% | 2900 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,804 psi | 77% | 2881 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 36,303 psi | 60% | 2762 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 38,406 psi | 63% | 2756 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 45,165 psi | 74% | 2822 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,147 psi | 68% | 2802 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 37,724 psi | 62% | 2730 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 40,553 psi | 67% | 2805 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 31,778 psi | 52% | 2648 fps | 97.5% |
| Vihtavuori N560 | 67.2 gr | 92% | 47,268 psi | 78% | 3035 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 98% | 46,673 psi | 77% | 3009 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,277 psi | 66% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,061 psi | 69% | 2864 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,295 psi | 42% | 2543 fps | 96.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,205 psi | 66% | 2792 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 | 140gr | Barnes BND SPIT-FIRE. Winchester StaBALL HD delivers the highest muzzle velocity at 3,209 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,209 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 140.0 gr projectile in 0.284" calls for a 1:9.5 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 140gr | Barnes BND SPIT-FIRE 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.