Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 130gr | Speer FN bullet and 79 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 2700 | <<locked>> | 82% | 54,389 psi | 89% | 3087 fps | 98.6% |
| Accurate 3100 | <<locked>> | 98% | 52,968 psi | 87% | 3136 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 54,027 psi | 89% | 3081 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,984 psi | 90% | 3192 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 54,230 psi | 89% | 3287 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 84% | 53,795 psi | 88% | 3114 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,301 psi | 86% | 3176 fps | 97.7% |
| ADI AR 2213 | <<locked>> | 98% | 53,592 psi | 88% | 3228 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 52,562 psi | 86% | 3173 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,752 psi | 90% | 3136 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,752 psi | 90% | 3156 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,098 psi | 86% | 3196 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,069 psi | 87% | 3215 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 51,880 psi | 85% | 3163 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,794 psi | 87% | 3225 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,388 psi | 88% | 3212 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,398 psi | 76% | 3133 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,664 psi | 88% | 3301 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,750 psi | 85% | 3202 fps | 97.7% |
| Bofors RP3 | <<locked>> | 82% | 52,112 psi | 86% | 3097 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,794 psi | 87% | 3225 fps | 98% |
| Bofors RP7 | <<locked>> | 88% | 54,955 psi | 90% | 3140 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 82% | 52,301 psi | 86% | 3110 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 53,330 psi | 88% | 3186 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 53,026 psi | 87% | 3140 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 53,693 psi | 88% | 3166 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,533 psi | 86% | 3117 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,440 psi | 75% | 3169 fps | 97% |
| Hodgdon Superformance | <<locked>> | 88% | 53,432 psi | 88% | 3219 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 60% | 2001 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,229 psi | 87% | 3091 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,562 psi | 86% | 3114 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,185 psi | 87% | 3110 fps | 98.9% |
| IMR 4831 | <<locked>> | 90% | 51,909 psi | 85% | 3127 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,880 psi | 85% | 3097 fps | 95.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,752 psi | 90% | 3261 fps | 97.1% |
| Lovex S062 | <<locked>> | 82% | 53,447 psi | 88% | 3087 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,417 psi | 88% | 3110 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 54,723 psi | 90% | 3153 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,253 psi | 78% | 3035 fps | 98.9% |
| Norma 203B | <<locked>> | 82% | 54,056 psi | 89% | 3143 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,272 psi | 87% | 3166 fps | 97.7% |
| Norma MRP | <<locked>> | 96% | 52,388 psi | 86% | 3251 fps | 99% |
| Norma URP | <<locked>> | 90% | 53,592 psi | 88% | 3176 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,027 psi | 90% | 3169 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,459 psi | 84% | 3212 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 90% | 52,431 psi | 86% | 3173 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,661 psi | 82% | 3143 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 61% | 2051 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,199 psi | 86% | 3094 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,475 psi | 86% | 3209 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,897 psi | 90% | 3215 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,200 psi | 87% | 3241 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,484 psi | 75% | 3159 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 84% | 52,185 psi | 86% | 3094 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,911 psi | 89% | 3143 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 96% | 54,592 psi | 90% | 3212 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 54,955 psi | 90% | 3140 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,417 psi | 88% | 3110 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 53,447 psi | 88% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,723 psi | 90% | 3153 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,635 psi | 88% | 3153 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,069 psi | 87% | 2976 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,953 psi | 87% | 3054 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,128 psi | 89% | 3205 fps | 98.2% |
| Somchem S355 | <<locked>> | 84% | 52,301 psi | 86% | 3091 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 53,185 psi | 87% | 3179 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 51,692 psi | 85% | 3123 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 86% | 53,330 psi | 88% | 3061 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,938 psi | 85% | 3107 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,636 psi | 90% | 3153 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 82% | 54,230 psi | 89% | 3064 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,795 psi | 90% | 3173 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 52,228 psi | 86% | 3182 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 52,620 psi | 86% | 3238 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 51,692 psi | 85% | 3074 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,592 psi | 88% | 3189 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,979 psi | 80% | 3281 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 51,677 psi | 85% | 3110 fps | 97.5% |
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 2700 | <<locked>> | 80% | 50,894 psi | 84% | 3028 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 35,114 psi | 58% | 2766 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 50,473 psi | 83% | 3025 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,841 psi | 64% | 2881 fps | 98.4% |
| Accurate High Country | <<locked>> | 92% | 47,108 psi | 77% | 3150 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 47,485 psi | 78% | 2999 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,859 psi | 70% | 2982 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 49,966 psi | 82% | 3156 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 42,960 psi | 71% | 2979 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,254 psi | 79% | 3028 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,430 psi | 84% | 3100 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,623 psi | 62% | 2890 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,873 psi | 70% | 3028 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,496 psi | 70% | 2972 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,989 psi | 71% | 3028 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,630 psi | 45% | 2615 fps | 96.2% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,518 psi | 55% | 2808 fps | 95.6% |
| Alliant Reloder-26 | 63.4 gr | 82% | 31,966 psi | 52% | 2808 fps | 95.8% |
| Bofors RP15 | <<locked>> | 94% | 42,395 psi | 70% | 3012 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 48,646 psi | 80% | 3038 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,989 psi | 71% | 3028 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 42,583 psi | 70% | 2897 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 80% | 48,849 psi | 80% | 3048 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 40,741 psi | 67% | 2930 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 43,555 psi | 72% | 2953 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 94% | 50,053 psi | 82% | 3100 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,157 psi | 58% | 2772 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,453 psi | 70% | 3094 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 39,668 psi | 65% | 2936 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,296 psi | 45% | 1795 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,966 psi | 82% | 3038 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,305 psi | 63% | 2815 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,019 psi | 72% | 2930 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 37,231 psi | 61% | 2828 fps | 98.1% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,791 psi | 80% | 3038 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 96% | 47,805 psi | 78% | 3127 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 50,212 psi | 82% | 3031 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,495 psi | 68% | 2874 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 39,871 psi | 65% | 2854 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 34,127 psi | 56% | 2743 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 50,778 psi | 83% | 3087 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,279 psi | 71% | 2969 fps | 95.2% |
| Norma MRP | 66 gr | 88% | 39,508 psi | 65% | 2979 fps | 96% |
| Norma URP | <<locked>> | 80% | 38,551 psi | 63% | 2877 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 80% | 51,256 psi | 84% | 3107 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,863 psi | 79% | 3136 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 37,449 psi | 61% | 2858 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 94% | 39,668 psi | 65% | 2930 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 45% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,878 psi | 80% | 3031 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,513 psi | 75% | 3087 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,551 psi | 63% | 2894 fps | 98.1% |
| ReloadSwiss RS 70 | 61.2 gr | 80% | 37,318 psi | 61% | 2904 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,407 psi | 65% | 3009 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 45,876 psi | 75% | 2979 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,471 psi | 78% | 3022 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 41,756 psi | 69% | 2956 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 42,583 psi | 70% | 2897 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,495 psi | 68% | 2874 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 50,212 psi | 82% | 3031 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,871 psi | 65% | 2854 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,050 psi | 77% | 3038 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,891 psi | 77% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,669 psi | 67% | 2812 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,394 psi | 68% | 2953 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 45,905 psi | 75% | 2976 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 35,041 psi | 58% | 2828 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,711 psi | 65% | 2877 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 44,034 psi | 72% | 2904 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,900 psi | 66% | 2871 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 41,756 psi | 69% | 2910 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 50,763 psi | 83% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,349 psi | 65% | 2874 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 30,690 psi | 50% | 2703 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 94% | 49,081 psi | 81% | 3169 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,131 psi | 64% | 2838 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,930 psi | 67% | 2936 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,237 psi | 43% | 2651 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,901 psi | 69% | 2920 fps | 95% |
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 79 powders for 7 mm Blaser Mag. loaded with the .284 | 130gr | Speer FN. Alliant Reloder-26 delivers the highest muzzle velocity at 3,301 fps; across all powders the maximum-charge window runs from 2,001 fps to 3,301 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 79 of the 79 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 130.0 gr projectile in 0.284" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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, ReloadSwiss RS 70 rank at the top here: for 7 mm Blaser Mag. with the .284 | 130gr | Speer FN 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.