Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 130gr | Sierra HPBT MatchKing bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 53,272 psi | 87% | 3061 fps | 98.3% |
| Accurate 3100 | <<locked>> | 98% | 51,692 psi | 85% | 3107 fps | 99.3% |
| Accurate 4064 | <<locked>> | 82% | 52,895 psi | 87% | 3061 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,635 psi | 88% | 3169 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 52,663 psi | 86% | 3255 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 52,823 psi | 87% | 3091 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,534 psi | 90% | 3209 fps | 98% |
| ADI AR 2213 | <<locked>> | 98% | 52,475 psi | 86% | 3202 fps | 96.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,752 psi | 90% | 3209 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,693 psi | 88% | 3117 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 53,679 psi | 88% | 3136 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,331 psi | 89% | 3228 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 51,764 psi | 85% | 3192 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,012 psi | 89% | 3196 fps | 97.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,085 psi | 90% | 3261 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,982 psi | 85% | 3186 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,092 psi | 74% | 3104 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,025 psi | 85% | 3274 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,285 psi | 83% | 3173 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 54,462 psi | 89% | 3133 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,085 psi | 90% | 3261 fps | 98.3% |
| Bofors RP7 | <<locked>> | 88% | 53,838 psi | 88% | 3114 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 84% | 54,708 psi | 90% | 3146 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 52,185 psi | 86% | 3163 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 86% | 51,880 psi | 85% | 3117 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,085 psi | 90% | 3186 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,592 psi | 90% | 3146 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,237 psi | 73% | 3133 fps | 96.4% |
| Hodgdon Superformance | <<locked>> | 88% | 52,141 psi | 86% | 3192 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 60% | 1991 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,156 psi | 86% | 3071 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,723 psi | 90% | 3104 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 54,839 psi | 90% | 3146 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,054 psi | 85% | 3084 fps | 98.7% |
| IMR 4831 | <<locked>> | 92% | 54,157 psi | 89% | 3159 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,085 psi | 90% | 3166 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,012 psi | 89% | 3130 fps | 96.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,359 psi | 88% | 3232 fps | 96.6% |
| Lovex S062 | <<locked>> | 82% | 52,591 psi | 86% | 3068 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,272 psi | 86% | 3084 fps | 99.5% |
| Lovex S070 | <<locked>> | 90% | 53,606 psi | 88% | 3127 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,963 psi | 75% | 3005 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 52,982 psi | 87% | 3120 fps | 100% |
| Norma 204 | <<locked>> | 90% | 51,953 psi | 85% | 3136 fps | 97.3% |
| Norma MRP | <<locked>> | 98% | 54,636 psi | 90% | 3291 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 52,373 psi | 86% | 3150 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 53,809 psi | 88% | 3146 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,925 psi | 89% | 3251 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 92% | 54,752 psi | 90% | 3209 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,153 psi | 79% | 3110 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,101 psi | 61% | 2041 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,650 psi | 90% | 3130 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,998 psi | 90% | 3245 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,505 psi | 88% | 3189 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 51,895 psi | 85% | 3215 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,382 psi | 73% | 3130 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,505 psi | 89% | 3081 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,563 psi | 90% | 3127 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 52,895 psi | 87% | 3120 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 96% | 53,272 psi | 87% | 3182 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 88% | 53,838 psi | 88% | 3114 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,272 psi | 86% | 3084 fps | 99.5% |
| Shooters World Precision | <<locked>> | 82% | 52,591 psi | 86% | 3068 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,606 psi | 88% | 3127 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,634 psi | 86% | 3136 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,040 psi | 85% | 2956 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,880 psi | 85% | 3031 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 52,794 psi | 87% | 3176 fps | 97.8% |
| Somchem S355 | <<locked>> | 86% | 54,389 psi | 89% | 3120 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,520 psi | 90% | 3107 fps | 96% |
| Somchem S365 | <<locked>> | 92% | 51,619 psi | 85% | 3153 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 53,838 psi | 88% | 3156 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 82% | 54,708 psi | 90% | 3035 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,955 psi | 90% | 3051 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 52,359 psi | 86% | 3041 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,433 psi | 89% | 3146 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,214 psi | 87% | 3127 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 53,243 psi | 87% | 3045 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,476 psi | 88% | 3150 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 54,592 psi | 90% | 3219 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,926 psi | 90% | 3274 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,070 psi | 89% | 3107 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,185 psi | 86% | 3163 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,108 psi | 77% | 3255 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,085 psi | 89% | 3150 fps | 97.9% |
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% | 50,009 psi | 82% | 3002 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 34,272 psi | 56% | 2743 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 49,559 psi | 81% | 3009 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,826 psi | 62% | 2854 fps | 98.1% |
| Accurate High Country | <<locked>> | 92% | 45,788 psi | 75% | 3117 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 46,688 psi | 77% | 2979 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,730 psi | 73% | 3018 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 96% | 48,834 psi | 80% | 3130 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,991 psi | 74% | 3022 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,224 psi | 78% | 3005 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,357 psi | 83% | 3081 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,869 psi | 61% | 2867 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,916 psi | 69% | 3005 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,498 psi | 73% | 3012 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,003 psi | 69% | 3002 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,035 psi | 44% | 2592 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,735 psi | 54% | 2782 fps | 95% |
| Alliant Reloder-26 | 62.1 gr | 82% | 31,067 psi | 51% | 2779 fps | 95.2% |
| Bofors RP15 | <<locked>> | 96% | 44,222 psi | 73% | 3051 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 47,543 psi | 78% | 3015 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,003 psi | 69% | 3002 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 41,843 psi | 69% | 2877 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 48,080 psi | 79% | 3028 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,813 psi | 65% | 2907 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 42,612 psi | 70% | 2930 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,285 psi | 84% | 3120 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,360 psi | 56% | 2753 fps | 98.7% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,466 psi | 68% | 3064 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 38,928 psi | 64% | 2913 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 45% | 1785 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,110 psi | 81% | 3015 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,401 psi | 84% | 3048 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 39,943 psi | 66% | 2851 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,323 psi | 71% | 2910 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 36,463 psi | 60% | 2805 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 51,677 psi | 85% | 3110 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,705 psi | 83% | 3071 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 49,879 psi | 82% | 3166 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 49,356 psi | 81% | 3012 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,785 psi | 67% | 2854 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 39,001 psi | 64% | 2831 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 35,491 psi | 58% | 2776 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 49,734 psi | 82% | 3064 fps | 100% |
| Norma 204 | <<locked>> | 86% | 45,324 psi | 74% | 3009 fps | 95.7% |
| Norma MRP | 64.7 gr | 88% | 38,537 psi | 63% | 2953 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 37,579 psi | 62% | 2851 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 50,256 psi | 83% | 3087 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,485 psi | 76% | 3104 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 36,550 psi | 60% | 2835 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 41,437 psi | 68% | 2969 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,601 psi | 45% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,979 psi | 79% | 3009 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,512 psi | 73% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,637 psi | 62% | 2874 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,564 psi | 60% | 2877 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,392 psi | 63% | 2976 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 51,126 psi | 84% | 3025 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,773 psi | 74% | 2956 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 49,574 psi | 81% | 3061 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 43,540 psi | 71% | 2992 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 41,843 psi | 69% | 2877 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,785 psi | 67% | 2854 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 49,356 psi | 81% | 3012 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,001 psi | 64% | 2831 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,079 psi | 76% | 3015 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,064 psi | 76% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,016 psi | 66% | 2795 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,134 psi | 71% | 2986 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 45,078 psi | 74% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,981 psi | 84% | 3045 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 34,040 psi | 56% | 2802 fps | 99.5% |
| Somchem S385 | <<locked>> | 86% | 38,696 psi | 64% | 2851 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 51,503 psi | 85% | 2989 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,532 psi | 85% | 2999 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,062 psi | 71% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,972 psi | 64% | 2848 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 40,799 psi | 67% | 2887 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 50,038 psi | 82% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,624 psi | 63% | 2854 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,776 psi | 49% | 2677 fps | 95.9% |
| Vihtavuori N560 | 70.5 gr | 96% | 51,155 psi | 84% | 3205 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,189 psi | 63% | 2815 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 40,001 psi | 66% | 2910 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,512 psi | 42% | 2618 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,830 psi | 72% | 2959 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 85 powders for 7 mm Blaser Mag. loaded with the .284 | 130gr | Sierra HPBT MatchKing. Norma MRP delivers the highest muzzle velocity at 3,291 fps; across all powders the maximum-charge window runs from 1,991 fps to 3,291 fps. Alliant Reloder-22 gives the best case fill at 100 %, and 85 of the 85 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 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-22, Alliant Reloder-23, 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, Alliant Reloder-26, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 130gr | Sierra HPBT MatchKing 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.