Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 140gr | Peregrine VRG-3 bullet and 84 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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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% | 54,360 psi | 89% | 2989 fps | 99% |
| Accurate 3100 | <<locked>> | 98% | 52,707 psi | 87% | 3035 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 53,563 psi | 88% | 2969 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,839 psi | 90% | 3087 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 54,433 psi | 89% | 3192 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 96% | 51,532 psi | 85% | 3123 fps | 96% |
| ADI AR 2208 | <<locked>> | 84% | 53,925 psi | 89% | 3009 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,373 psi | 86% | 3077 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 98% | 53,708 psi | 88% | 3136 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 52,649 psi | 86% | 3077 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,578 psi | 90% | 3031 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,795 psi | 90% | 3054 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,141 psi | 86% | 3094 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,258 psi | 87% | 3114 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 51,967 psi | 85% | 3068 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,895 psi | 87% | 3130 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,417 psi | 88% | 3110 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,369 psi | 76% | 3041 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,795 psi | 88% | 3202 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,837 psi | 85% | 3110 fps | 98.2% |
| Bofors RP3 | <<locked>> | 82% | 51,779 psi | 85% | 2989 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,895 psi | 87% | 3130 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 54,998 psi | 90% | 3038 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,861 psi | 75% | 2972 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 82% | 52,098 psi | 86% | 3009 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 53,447 psi | 88% | 3087 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 86% | 52,953 psi | 87% | 3041 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 96% | 53,737 psi | 88% | 3074 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,707 psi | 87% | 3054 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,562 psi | 86% | 3015 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,281 psi | 74% | 3077 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 88% | 53,519 psi | 88% | 3120 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,492 psi | 60% | 1923 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,171 psi | 87% | 2989 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,620 psi | 86% | 3015 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,243 psi | 87% | 3012 fps | 99.3% |
| IMR 4831 | <<locked>> | 90% | 51,837 psi | 85% | 3025 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,895 psi | 85% | 3005 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,737 psi | 90% | 3166 fps | 97.7% |
| Lovex S062 | <<locked>> | 82% | 53,519 psi | 88% | 2982 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,374 psi | 88% | 3009 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 54,607 psi | 90% | 3051 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,934 psi | 77% | 2936 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 54,099 psi | 89% | 3038 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,287 psi | 87% | 3068 fps | 98.2% |
| Norma MRP | <<locked>> | 96% | 52,547 psi | 86% | 3156 fps | 99.4% |
| Norma URP | <<locked>> | 90% | 53,592 psi | 88% | 3071 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,984 psi | 90% | 3064 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,430 psi | 84% | 3117 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 90% | 52,402 psi | 86% | 3071 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,501 psi | 81% | 3051 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,043 psi | 61% | 1965 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,185 psi | 86% | 2992 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,837 psi | 87% | 3107 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,926 psi | 90% | 3114 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,432 psi | 88% | 3143 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,353 psi | 74% | 3071 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 84% | 52,141 psi | 86% | 2989 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,925 psi | 89% | 3048 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 96% | 54,505 psi | 89% | 3110 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 54,998 psi | 90% | 3038 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,374 psi | 88% | 3009 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 53,519 psi | 88% | 2982 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,607 psi | 90% | 3051 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,737 psi | 88% | 3054 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,011 psi | 87% | 2871 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,707 psi | 87% | 2956 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,041 psi | 89% | 3104 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 52,025 psi | 85% | 2986 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,938 psi | 85% | 2976 fps | 96.3% |
| Somchem S365 | <<locked>> | 92% | 53,098 psi | 87% | 3074 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 51,706 psi | 85% | 3025 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 86% | 53,243 psi | 87% | 2959 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,112 psi | 86% | 3012 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,520 psi | 90% | 3054 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 54,099 psi | 89% | 2959 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,650 psi | 90% | 3071 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 52,141 psi | 86% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 52,779 psi | 87% | 3146 fps | 96.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,095 psi | 79% | 3041 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 51,532 psi | 85% | 2972 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,447 psi | 88% | 3087 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,284 psi | 81% | 3182 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 51,692 psi | 85% | 3018 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 2700 | <<locked>> | 80% | 50,720 psi | 83% | 2927 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 32,314 psi | 53% | 2615 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 50,096 psi | 82% | 2917 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,435 psi | 63% | 2782 fps | 98.8% |
| Accurate High Country | <<locked>> | 90% | 43,801 psi | 72% | 2986 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 94% | 47,877 psi | 79% | 3054 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 47,558 psi | 78% | 2900 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,118 psi | 66% | 2831 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 94% | 46,833 psi | 77% | 3002 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 40,234 psi | 66% | 2831 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,037 psi | 79% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,343 psi | 84% | 2999 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,579 psi | 62% | 2802 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,786 psi | 70% | 2930 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,813 psi | 65% | 2822 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,205 psi | 66% | 2874 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,311 psi | 45% | 2530 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,212 psi | 51% | 2664 fps | 95.3% |
| Alliant Reloder-26 | 59.9 gr | 80% | 29,283 psi | 48% | 2644 fps | 95.2% |
| Bofors RP15 | <<locked>> | 92% | 39,653 psi | 65% | 2861 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 48,385 psi | 79% | 2933 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,205 psi | 66% | 2874 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 42,482 psi | 70% | 2802 fps | 97% |
| Hodgdon H1000 | <<locked>> | 98% | 42,815 psi | 70% | 2907 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 48,747 psi | 80% | 2949 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 40,683 psi | 67% | 2838 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 43,511 psi | 71% | 2861 fps | 96.5% |
| Hodgdon H4831 | <<locked>> | 92% | 46,847 psi | 77% | 2946 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,226 psi | 81% | 2992 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,027 psi | 57% | 2680 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,581 psi | 65% | 2936 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,697 psi | 65% | 2851 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 45% | 1719 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,009 psi | 82% | 2936 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,101 psi | 63% | 2723 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,903 psi | 72% | 2835 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 36,898 psi | 61% | 2733 fps | 98.5% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,631 psi | 80% | 2943 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 94% | 44,541 psi | 73% | 2966 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 50,111 psi | 82% | 2930 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,336 psi | 68% | 2782 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 39,523 psi | 65% | 2759 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 31,502 psi | 52% | 2592 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,662 psi | 83% | 2982 fps | 100% |
| Norma 204 | <<locked>> | 82% | 40,451 psi | 66% | 2815 fps | 95.1% |
| Norma MRP | 62.5 gr | 86% | 36,622 psi | 60% | 2818 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,319 psi | 63% | 2779 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 80% | 51,256 psi | 84% | 3005 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 44,367 psi | 73% | 2976 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 37,173 psi | 61% | 2766 fps | 97% |
| Ramshot Magnum | <<locked>> | 94% | 39,508 psi | 65% | 2844 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 45% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,921 psi | 80% | 2936 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,484 psi | 75% | 2986 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,464 psi | 63% | 2805 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,144 psi | 61% | 2812 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,434 psi | 60% | 2848 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 45,513 psi | 75% | 2877 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,353 psi | 73% | 2867 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 41,568 psi | 68% | 2864 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 42,482 psi | 70% | 2802 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,336 psi | 68% | 2782 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 50,111 psi | 82% | 2930 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,523 psi | 65% | 2759 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,891 psi | 77% | 2936 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,818 psi | 77% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,379 psi | 66% | 2720 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,191 psi | 68% | 2858 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 45,803 psi | 75% | 2877 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,718 psi | 80% | 2920 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 34,751 psi | 57% | 2733 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,782 psi | 60% | 2723 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 43,772 psi | 72% | 2802 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,726 psi | 65% | 2779 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 38,943 psi | 64% | 2762 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 50,720 psi | 83% | 2907 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,146 psi | 64% | 2779 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 30,182 psi | 50% | 2608 fps | 96.9% |
| Vihtavuori N560 | 66.9 gr | 92% | 45,861 psi | 75% | 3012 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 98% | 44,889 psi | 74% | 2979 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,015 psi | 64% | 2746 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,683 psi | 67% | 2838 fps | 97.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,989 psi | 39% | 2490 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,669 psi | 68% | 2828 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 84 powders for 7 mm Blaser Mag. loaded with the .284 | 140gr | Peregrine VRG-3. Alliant Reloder-26 delivers the highest muzzle velocity at 3,202 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,202 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 84 of the 84 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 1:12.0 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, Vihtavuori N560 rank at the top here: for 7 mm Blaser Mag. with the .284 | 140gr | Peregrine VRG-3 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.