Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 140gr | Nosler AccuBond bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ADI AR 2213.
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>> | 84% | 54,665 psi | 90% | 2986 fps | 99.2% |
| Accurate 3100 | <<locked>> | 96% | 52,475 psi | 86% | 3031 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 54,186 psi | 89% | 3077 fps | 100% |
| ADI AR 2208 | <<locked>> | 82% | 52,750 psi | 87% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,984 psi | 90% | 3127 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 52,823 psi | 87% | 3123 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,102 psi | 64% | 2887 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,853 psi | 88% | 3018 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,027 psi | 90% | 3140 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,460 psi | 86% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,563 psi | 90% | 3114 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,402 psi | 86% | 3123 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,069 psi | 87% | 3100 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,124 psi | 81% | 3094 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,142 psi | 87% | 3189 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,810 psi | 90% | 3163 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 54,766 psi | 90% | 3035 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,049 psi | 74% | 3012 fps | 96.3% |
| Bofors RP5 | <<locked>> | 96% | 52,402 psi | 86% | 3123 fps | 98.6% |
| Bofors RP7 | <<locked>> | 86% | 53,795 psi | 88% | 3022 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,237 psi | 74% | 2963 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 82% | 54,810 psi | 90% | 3054 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 53,563 psi | 88% | 3091 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 88% | 53,925 psi | 89% | 3061 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 98% | 52,199 psi | 86% | 3048 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,692 psi | 85% | 3041 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,735 psi | 85% | 3002 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,124 psi | 79% | 3146 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 86% | 52,692 psi | 87% | 3107 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 60% | 1936 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,042 psi | 90% | 3018 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,780 psi | 88% | 2999 fps | 99.4% |
| IMR 4350 | <<locked>> | 88% | 51,866 psi | 85% | 3005 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,011 psi | 85% | 2992 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 52,388 psi | 86% | 3035 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,259 psi | 89% | 3048 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 96% | 54,375 psi | 89% | 3163 fps | 97.8% |
| Lovex S065 | <<locked>> | 86% | 52,344 psi | 86% | 2992 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 53,766 psi | 88% | 3038 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,024 psi | 82% | 2989 fps | 99.6% |
| Norma 204 | <<locked>> | 88% | 52,460 psi | 86% | 3058 fps | 98.2% |
| Norma MRP | <<locked>> | 94% | 51,866 psi | 85% | 3143 fps | 99.4% |
| Norma URP | <<locked>> | 88% | 52,808 psi | 87% | 3061 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 54,056 psi | 89% | 3166 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 88% | 51,779 psi | 85% | 3061 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 98% | 55,042 psi | 90% | 3143 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,536 psi | 62% | 1982 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,665 psi | 90% | 3035 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,837 psi | 85% | 3087 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,099 psi | 89% | 3100 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,373 psi | 86% | 3127 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,370 psi | 79% | 3136 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 54,868 psi | 90% | 3031 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,982 psi | 87% | 3035 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 94% | 53,911 psi | 89% | 3104 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 53,795 psi | 88% | 3022 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,344 psi | 86% | 2992 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 88% | 53,766 psi | 88% | 3038 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,707 psi | 87% | 3035 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,866 psi | 85% | 2854 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,764 psi | 85% | 2940 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,461 psi | 88% | 3097 fps | 98.7% |
| Somchem S355 | <<locked>> | 84% | 54,563 psi | 90% | 3025 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,810 psi | 90% | 3028 fps | 97.1% |
| Somchem S365 | <<locked>> | 90% | 52,649 psi | 86% | 3064 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,447 psi | 89% | 3074 fps | 99.3% |
| Unknown powder | <<locked>> | 86% | 53,287 psi | 87% | 3064 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 52,475 psi | 86% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,723 psi | 90% | 3054 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,041 psi | 89% | 3051 fps | 99% |
| Vihtavuori N550 | <<locked>> | 88% | 54,027 psi | 89% | 3058 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,112 psi | 86% | 3077 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,996 psi | 85% | 3130 fps | 96.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,372 psi | 84% | 3100 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,346 psi | 89% | 3012 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,563 psi | 88% | 3091 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,287 psi | 87% | 3238 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,214 psi | 86% | 3028 fps | 98.3% |
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% | 47,892 psi | 79% | 2867 fps | 98.2% |
| Accurate 3100 | <<locked>> | 82% | 32,576 psi | 53% | 2615 fps | 95.6% |
| Accurate 4350 | <<locked>> | 80% | 41,191 psi | 68% | 2838 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 49,559 psi | 81% | 2936 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,523 psi | 65% | 2818 fps | 95% |
| ADI AR 2213 | 66.5 gr | 92% | 46,122 psi | 76% | 2992 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 36,564 psi | 60% | 2818 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,560 psi | 83% | 2966 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,639 psi | 65% | 2848 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,469 psi | 75% | 2979 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,494 psi | 65% | 2815 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,929 psi | 66% | 2867 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,254 psi | 48% | 2589 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,154 psi | 51% | 2661 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,618 psi | 52% | 2717 fps | 96.7% |
| Bofors RP15 | <<locked>> | 90% | 39,407 psi | 65% | 2854 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 51,140 psi | 84% | 2979 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,177 psi | 69% | 2949 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 39,929 psi | 66% | 2867 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,541 psi | 73% | 2848 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 98% | 42,322 psi | 69% | 2897 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 51,242 psi | 84% | 2992 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 46,702 psi | 77% | 2966 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 80% | 41,930 psi | 69% | 2828 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 96% | 48,878 psi | 80% | 2989 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,414 psi | 79% | 2979 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,217 psi | 61% | 2730 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,537 psi | 65% | 2936 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 42,003 psi | 69% | 2900 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,499 psi | 45% | 1732 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,704 psi | 80% | 2913 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,718 psi | 78% | 2887 fps | 98.7% |
| IMR 4350 | <<locked>> | 80% | 40,219 psi | 66% | 2776 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,963 psi | 75% | 2881 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 35,795 psi | 59% | 2700 fps | 98.3% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,906 psi | 79% | 2933 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 90% | 44,237 psi | 73% | 2966 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 43,439 psi | 71% | 2825 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 41,858 psi | 69% | 2812 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 31,792 psi | 52% | 2595 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 39,900 psi | 66% | 2802 fps | 95% |
| Norma MRP | 62.7 gr | 84% | 36,535 psi | 60% | 2818 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 40,712 psi | 67% | 2831 fps | 99.2% |
| Ramshot Grand | <<locked>> | 88% | 43,236 psi | 71% | 2953 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 39,566 psi | 65% | 2822 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 88% | 37,507 psi | 62% | 2795 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,920 psi | 46% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,184 psi | 84% | 2976 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,240 psi | 79% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,959 psi | 67% | 2858 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,450 psi | 65% | 2867 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,434 psi | 60% | 2848 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 48,240 psi | 79% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,743 psi | 72% | 2858 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 38,595 psi | 63% | 2795 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 44,541 psi | 73% | 2848 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,439 psi | 71% | 2825 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 80% | 41,858 psi | 69% | 2812 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,501 psi | 81% | 2982 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,878 psi | 80% | 2812 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,583 psi | 70% | 2769 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,872 psi | 67% | 2851 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,095 psi | 79% | 2917 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,819 psi | 79% | 2907 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,347 psi | 61% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,796 psi | 60% | 2720 fps | 95.4% |
| Unknown powder | <<locked>> | 80% | 43,671 psi | 72% | 2887 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,166 psi | 76% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,076 psi | 69% | 2828 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 38,682 psi | 64% | 2756 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 41,437 psi | 68% | 2828 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,764 psi | 54% | 2674 fps | 98% |
| Vihtavuori N560 | 67.1 gr | 90% | 45,223 psi | 74% | 2999 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 44,860 psi | 74% | 2976 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,060 psi | 67% | 2789 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,702 psi | 77% | 2966 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,034 psi | 43% | 2575 fps | 97.3% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,247 psi | 64% | 2776 fps | 95.1% |
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 | 140gr | Nosler AccuBond. Winchester StaBALL HD delivers the highest muzzle velocity at 3,238 fps; across all powders the maximum-charge window runs from 1,936 fps to 3,238 fps. ADI AR 2217 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 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:11.0 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. Norma MRP, Vihtavuori N560, ADI AR 2213 rank at the top here: for 7 mm Blaser Mag. with the .284 | 140gr | Nosler AccuBond they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, 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.