Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 145gr | Barnes LRX BT bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate MAGPRO and Norma MRP.
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 3100 | <<locked>> | 98% | 54,404 psi | 89% | 3015 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,607 psi | 90% | 2933 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 52,330 psi | 86% | 2999 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 52,997 psi | 87% | 3104 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 54,810 psi | 90% | 2976 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,563 psi | 88% | 3054 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 54,984 psi | 90% | 3110 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,550 psi | 62% | 2805 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,838 psi | 88% | 3051 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,301 psi | 86% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,577 psi | 88% | 3064 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,534 psi | 90% | 3081 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,142 psi | 87% | 3045 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,302 psi | 89% | 3107 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,955 psi | 90% | 3081 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,601 psi | 78% | 3018 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,358 psi | 84% | 3114 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,200 psi | 87% | 3084 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 53,040 psi | 87% | 2959 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,207 psi | 71% | 2930 fps | 96% |
| Bofors RP5 | <<locked>> | 98% | 54,302 psi | 89% | 3107 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 52,431 psi | 86% | 2949 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,007 psi | 77% | 2956 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 53,345 psi | 88% | 2979 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,636 psi | 90% | 3058 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 54,259 psi | 89% | 3018 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 55,013 psi | 90% | 3048 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,954 psi | 89% | 3031 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,780 psi | 88% | 2982 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,499 psi | 76% | 3064 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 86% | 51,024 psi | 84% | 3031 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 60% | 1890 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,331 psi | 89% | 2956 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,882 psi | 88% | 2992 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,172 psi | 89% | 2979 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 53,026 psi | 87% | 2995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,939 psi | 87% | 2976 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 52,373 psi | 86% | 3081 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 54,447 psi | 89% | 2946 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,346 psi | 89% | 2976 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 52,431 psi | 86% | 2969 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,211 psi | 79% | 2913 fps | 99.5% |
| Norma 204 | <<locked>> | 90% | 54,491 psi | 89% | 3045 fps | 98.7% |
| Norma MRP | <<locked>> | 96% | 54,070 psi | 89% | 3133 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 54,781 psi | 90% | 3041 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,852 psi | 87% | 3100 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 53,635 psi | 88% | 3045 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,952 psi | 84% | 3031 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,173 psi | 61% | 1932 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,156 psi | 87% | 2963 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,128 psi | 89% | 3074 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,359 psi | 86% | 3025 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,781 psi | 90% | 3117 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,659 psi | 77% | 3058 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 53,171 psi | 87% | 2956 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,721 psi | 85% | 2966 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 94% | 52,359 psi | 86% | 3028 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 52,431 psi | 86% | 2949 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,346 psi | 89% | 2976 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,447 psi | 89% | 2946 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 52,431 psi | 86% | 2969 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,853 psi | 90% | 3018 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,114 psi | 89% | 2838 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,940 psi | 89% | 2930 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,909 psi | 85% | 3022 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 53,214 psi | 87% | 2956 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,330 psi | 88% | 2956 fps | 97% |
| Somchem S365 | <<locked>> | 92% | 54,433 psi | 89% | 3041 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,910 psi | 87% | 3002 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,534 psi | 90% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,243 psi | 87% | 2979 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,431 psi | 86% | 2976 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 52,330 psi | 86% | 2982 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,766 psi | 88% | 3058 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,201 psi | 89% | 3123 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,516 psi | 81% | 3022 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,982 psi | 87% | 2946 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,897 psi | 90% | 3064 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,242 psi | 84% | 3159 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,968 psi | 87% | 2995 fps | 98.6% |
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% | 31,038 psi | 51% | 2539 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 51,329 psi | 84% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,537 psi | 65% | 2762 fps | 99.2% |
| Accurate MAGPRO | 69.3 gr | 94% | 49,240 psi | 81% | 3035 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 48,327 psi | 79% | 2867 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,973 psi | 67% | 2808 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 92% | 44,759 psi | 73% | 2917 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 35,157 psi | 58% | 2740 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,435 psi | 63% | 2746 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,168 psi | 81% | 2894 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,363 psi | 63% | 2776 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,005 psi | 72% | 2904 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,712 psi | 67% | 2799 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,493 psi | 63% | 2792 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,079 psi | 46% | 2516 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,921 psi | 49% | 2585 fps | 95.1% |
| Alliant Reloder-26 | 59.6 gr | 80% | 30,066 psi | 49% | 2631 fps | 96.2% |
| Bofors RP15 | <<locked>> | 92% | 40,669 psi | 67% | 2841 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 49,574 psi | 81% | 2907 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,524 psi | 67% | 2871 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 38,493 psi | 63% | 2792 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 43,221 psi | 71% | 2776 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 96% | 40,915 psi | 67% | 2825 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 49,908 psi | 82% | 2923 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,582 psi | 68% | 2815 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 44,556 psi | 73% | 2838 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 92% | 47,964 psi | 79% | 2927 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,021 psi | 77% | 2907 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,013 psi | 59% | 2661 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,000 psi | 62% | 2858 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 40,654 psi | 67% | 2828 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,267 psi | 45% | 1690 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,850 psi | 83% | 2900 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,030 psi | 64% | 2703 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,846 psi | 74% | 2812 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 37,913 psi | 62% | 2710 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,717 psi | 77% | 2864 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 42,801 psi | 70% | 2887 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 51,227 psi | 84% | 2897 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,279 psi | 69% | 2759 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 40,495 psi | 66% | 2736 fps | 97.6% |
| Lovex S071 | <<locked>> | 88% | 32,343 psi | 53% | 2575 fps | 95.8% |
| Norma 204 | <<locked>> | 82% | 41,336 psi | 68% | 2792 fps | 95.8% |
| Norma MRP | 60.8 gr | 84% | 35,085 psi | 58% | 2740 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 39,349 psi | 65% | 2756 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 42,438 psi | 70% | 2894 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 38,218 psi | 63% | 2746 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 37,623 psi | 62% | 2762 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 46% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,821 psi | 82% | 2907 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,818 psi | 77% | 2956 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,421 psi | 65% | 2782 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,203 psi | 63% | 2795 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,809 psi | 57% | 2762 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 46,630 psi | 77% | 2851 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,525 psi | 70% | 2789 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 39,914 psi | 66% | 2782 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 43,221 psi | 71% | 2776 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,279 psi | 69% | 2759 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 51,227 psi | 84% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,495 psi | 66% | 2736 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,095 psi | 79% | 2910 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,776 psi | 78% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,336 psi | 68% | 2700 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,537 psi | 65% | 2779 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 46,847 psi | 77% | 2848 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,499 psi | 76% | 2838 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,882 psi | 59% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,317 psi | 58% | 2644 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 44,817 psi | 74% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,785 psi | 67% | 2756 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 37,289 psi | 61% | 2684 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 40,147 psi | 66% | 2756 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 31,169 psi | 51% | 2595 fps | 97.6% |
| Vihtavuori N560 | <<locked>> | 92% | 47,036 psi | 77% | 2992 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 96% | 43,091 psi | 71% | 2897 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,871 psi | 65% | 2720 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,771 psi | 69% | 2818 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,700 psi | 41% | 2490 fps | 96.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,813 psi | 65% | 2746 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 80 powders for 7 mm Blaser Mag. loaded with the .284 | 145gr | Barnes LRX BT. Winchester StaBALL HD delivers the highest muzzle velocity at 3,159 fps; across all powders the maximum-charge window runs from 1,890 fps to 3,159 fps. ADI AR 2225 gives the best case fill at 100 %, and 80 of the 80 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 145.0 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-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. Alliant Reloder-26, Accurate MAGPRO, Norma MRP rank at the top here: for 7 mm Blaser Mag. with the .284 | 145gr | Barnes LRX BT 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.