Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 130gr | Speer Hot-Cor bullet and 76 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 ReloadSwiss RS 70.
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% | 55,042 psi | 90% | 3173 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 53,011 psi | 87% | 3166 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 53,447 psi | 88% | 3258 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 82% | 51,851 psi | 85% | 3084 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,012 psi | 89% | 3215 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 96% | 51,692 psi | 85% | 3202 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,794 psi | 87% | 3110 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,896 psi | 88% | 3232 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 51,256 psi | 84% | 3189 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,621 psi | 88% | 3202 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,752 psi | 90% | 3264 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,083 psi | 86% | 3192 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,066 psi | 79% | 3176 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,982 psi | 85% | 3274 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,679 psi | 88% | 3245 fps | 98.2% |
| Bofors RP3 | <<locked>> | 82% | 53,737 psi | 88% | 3130 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,752 psi | 90% | 3264 fps | 98.5% |
| Bofors RP7 | <<locked>> | 86% | 53,026 psi | 87% | 3114 fps | 98.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,529 psi | 78% | 3104 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 82% | 53,824 psi | 88% | 3143 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,984 psi | 90% | 3222 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 86% | 54,679 psi | 90% | 3179 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 94% | 51,880 psi | 85% | 3143 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,317 psi | 89% | 3186 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,273 psi | 89% | 3150 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,065 psi | 77% | 3215 fps | 97.8% |
| Hodgdon Superformance | <<locked>> | 86% | 51,561 psi | 85% | 3189 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 60% | 2014 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,578 psi | 90% | 3120 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,273 psi | 89% | 3150 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,520 psi | 90% | 3143 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 53,621 psi | 88% | 3159 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,403 psi | 88% | 3133 fps | 96.4% |
| IMR 7828 SSC | <<locked>> | 98% | 53,055 psi | 87% | 3238 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 55,085 psi | 90% | 3117 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,766 psi | 90% | 3140 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 52,808 psi | 87% | 3127 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,979 psi | 80% | 3071 fps | 99.2% |
| Norma 204 | <<locked>> | 90% | 55,013 psi | 90% | 3202 fps | 98.2% |
| Norma MRP | <<locked>> | 96% | 54,708 psi | 90% | 3294 fps | 99.4% |
| Norma URP | <<locked>> | 88% | 51,779 psi | 85% | 3150 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,548 psi | 88% | 3261 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 90% | 54,215 psi | 89% | 3209 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,561 psi | 85% | 3186 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,260 psi | 61% | 2064 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,606 psi | 88% | 3123 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,389 psi | 89% | 3241 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,156 psi | 87% | 3192 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 51,372 psi | 84% | 3215 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,558 psi | 78% | 3215 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 84% | 53,824 psi | 88% | 3127 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,054 psi | 85% | 3120 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 94% | 52,939 psi | 87% | 3186 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 86% | 53,026 psi | 87% | 3114 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,766 psi | 90% | 3140 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 55,085 psi | 90% | 3117 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,808 psi | 87% | 3127 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,837 psi | 85% | 3130 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,375 psi | 89% | 3002 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,447 psi | 89% | 3087 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,489 psi | 86% | 3182 fps | 98.1% |
| Somchem S355 | <<locked>> | 84% | 53,650 psi | 88% | 3120 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,693 psi | 88% | 3107 fps | 96.3% |
| Somchem S365 | <<locked>> | 92% | 55,042 psi | 90% | 3212 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,417 psi | 88% | 3156 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 86% | 55,042 psi | 90% | 3094 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,621 psi | 88% | 3143 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,808 psi | 87% | 3130 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 88% | 53,055 psi | 87% | 3150 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,505 psi | 89% | 3222 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,737 psi | 90% | 3284 fps | 96.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,270 psi | 83% | 3179 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,359 psi | 88% | 3104 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 51,721 psi | 85% | 3163 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,706 psi | 85% | 3323 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,519 psi | 88% | 3150 fps | 98.1% |
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>> | 84% | 34,142 psi | 56% | 2746 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 40,219 psi | 66% | 2917 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 94% | 49,908 psi | 82% | 3192 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 48,776 psi | 80% | 3028 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 44,280 psi | 73% | 3022 fps | 95.9% |
| ADI AR 2213 | <<locked>> | 94% | 48,312 psi | 79% | 3133 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,661 psi | 82% | 3058 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,870 psi | 64% | 2927 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,382 psi | 73% | 3061 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 41,307 psi | 68% | 2953 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,698 psi | 68% | 3005 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,601 psi | 47% | 2654 fps | 96.9% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,590 psi | 54% | 2785 fps | 95.3% |
| Alliant Reloder-26 | 63.7 gr | 80% | 30,908 psi | 51% | 2779 fps | 95.4% |
| Bofors RP15 | <<locked>> | 92% | 41,292 psi | 68% | 2992 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 50,256 psi | 83% | 3071 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,698 psi | 68% | 3005 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 43,787 psi | 72% | 2930 fps | 96.9% |
| Hodgdon H1000 | <<locked>> | 98% | 44,585 psi | 73% | 3041 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 50,386 psi | 83% | 3084 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 42,163 psi | 69% | 2969 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 44,933 psi | 74% | 2989 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 92% | 48,472 psi | 80% | 3077 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 94% | 50,676 psi | 83% | 3120 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,434 psi | 60% | 2808 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 96% | 41,205 psi | 68% | 3071 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 41,234 psi | 68% | 2982 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 45% | 1808 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,314 psi | 84% | 3068 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,407 psi | 65% | 2848 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,179 psi | 74% | 2963 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 38,464 psi | 63% | 2861 fps | 98.5% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,067 psi | 82% | 3071 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 94% | 46,267 psi | 76% | 3104 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 51,619 psi | 85% | 3061 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,714 psi | 70% | 2907 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 41,046 psi | 67% | 2890 fps | 96.9% |
| Lovex S071 | <<locked>> | 88% | 33,170 psi | 54% | 2720 fps | 95.1% |
| Norma 204 | <<locked>> | 82% | 41,843 psi | 69% | 2943 fps | 95% |
| Norma MRP | 66.4 gr | 86% | 38,189 psi | 63% | 2949 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 39,827 psi | 65% | 2910 fps | 98.7% |
| Ramshot Grand | <<locked>> | 94% | 46,224 psi | 76% | 3114 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 38,754 psi | 64% | 2894 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 92% | 38,377 psi | 63% | 2907 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,818 psi | 46% | 1847 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,270 psi | 83% | 3064 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,108 psi | 77% | 3120 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,147 psi | 66% | 2936 fps | 98.6% |
| ReloadSwiss RS 70 | 63.1 gr | 80% | 38,696 psi | 64% | 2943 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 38,276 psi | 63% | 2986 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 47,282 psi | 78% | 3015 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,774 psi | 75% | 2995 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 40,437 psi | 66% | 2933 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 43,787 psi | 72% | 2930 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,714 psi | 70% | 2907 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 51,619 psi | 85% | 3061 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,046 psi | 67% | 2890 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,573 psi | 80% | 3071 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,008 psi | 79% | 2904 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,800 psi | 69% | 2844 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 42,728 psi | 70% | 2986 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 47,268 psi | 78% | 3009 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 50,343 psi | 83% | 3048 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 36,361 psi | 60% | 2861 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 38,493 psi | 63% | 2851 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 45,310 psi | 74% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,176 psi | 68% | 2907 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 40,480 psi | 66% | 2890 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 40,669 psi | 67% | 2907 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 31,908 psi | 52% | 2740 fps | 97% |
| Vihtavuori N560 | <<locked>> | 92% | 47,616 psi | 78% | 3143 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 98% | 46,934 psi | 77% | 3110 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,277 psi | 66% | 2867 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 42,163 psi | 69% | 2969 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,440 psi | 42% | 2621 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 90% | 43,250 psi | 71% | 2956 fps | 95.7% |
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 83 powders for 7 mm Blaser Mag. loaded with the .284 | 130gr | Speer Hot-Cor. Winchester StaBALL HD delivers the highest muzzle velocity at 3,323 fps; across all powders the maximum-charge window runs from 2,014 fps to 3,323 fps. ADI AR 2217 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.284" calls for a 1:13.5 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, ReloadSwiss RS 70 rank at the top here: for 7 mm Blaser Mag. with the .284 | 130gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.