Load Specifications
Load data in caliber 7 mm Blaser Mag. with .283 | 140gr | Rhino Penetrator bullet and 75 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 Alliant Reloder-26.
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 3100 | <<locked>> | 96% | 52,417 psi | 86% | 3028 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 54,114 psi | 89% | 3077 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 54,520 psi | 90% | 3176 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 82% | 52,707 psi | 87% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,911 psi | 90% | 3127 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 52,562 psi | 86% | 3117 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,885 psi | 64% | 2881 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,809 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,723 psi | 90% | 3133 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,359 psi | 86% | 3097 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,505 psi | 89% | 3114 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,098 psi | 86% | 3114 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,997 psi | 87% | 3100 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,110 psi | 81% | 3094 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,084 psi | 87% | 3189 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,781 psi | 90% | 3159 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 54,447 psi | 89% | 3031 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,817 psi | 74% | 3005 fps | 96.3% |
| Bofors RP5 | <<locked>> | 96% | 52,098 psi | 86% | 3114 fps | 98.5% |
| Bofors RP7 | <<locked>> | 86% | 53,708 psi | 88% | 3022 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,356 psi | 79% | 3028 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 54,766 psi | 90% | 3051 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,547 psi | 86% | 3071 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 84% | 51,982 psi | 85% | 3028 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 94% | 52,634 psi | 86% | 3054 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,663 psi | 85% | 3041 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,692 psi | 85% | 3002 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,892 psi | 79% | 3140 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 86% | 52,359 psi | 86% | 3100 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 60% | 1932 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 51,590 psi | 85% | 2999 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 51,967 psi | 85% | 2992 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 54,520 psi | 90% | 3068 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,201 psi | 89% | 3048 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 98% | 53,838 psi | 88% | 3153 fps | 97.7% |
| Lovex S065 | <<locked>> | 86% | 52,315 psi | 86% | 2989 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 53,708 psi | 88% | 3035 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,980 psi | 82% | 2986 fps | 99.6% |
| Norma 204 | <<locked>> | 88% | 52,185 psi | 86% | 3051 fps | 98.2% |
| Norma MRP | <<locked>> | 94% | 51,793 psi | 85% | 3143 fps | 99.4% |
| Norma URP | <<locked>> | 88% | 52,721 psi | 87% | 3058 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,563 psi | 90% | 3176 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 55,114 psi | 90% | 3117 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,533 psi | 86% | 3104 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 61% | 1978 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,607 psi | 90% | 3035 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,764 psi | 85% | 3087 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,085 psi | 89% | 3100 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,330 psi | 86% | 3127 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,327 psi | 79% | 3136 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 54,766 psi | 90% | 3028 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,939 psi | 87% | 3035 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 94% | 53,867 psi | 88% | 3100 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 53,708 psi | 88% | 3022 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,315 psi | 86% | 2989 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 88% | 53,708 psi | 88% | 3035 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,634 psi | 86% | 3035 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,808 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% | 53,417 psi | 88% | 3097 fps | 98.7% |
| Somchem S355 | <<locked>> | 84% | 54,491 psi | 89% | 3022 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,505 psi | 89% | 3025 fps | 97% |
| Somchem S365 | <<locked>> | 90% | 52,620 psi | 86% | 3064 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,447 psi | 89% | 3071 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 84% | 52,431 psi | 86% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,694 psi | 90% | 3051 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,751 psi | 88% | 3045 fps | 99% |
| Vihtavuori N550 | <<locked>> | 88% | 53,940 psi | 89% | 3058 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,054 psi | 85% | 3074 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,924 psi | 85% | 3130 fps | 96.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,372 psi | 84% | 3100 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,288 psi | 89% | 3012 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,547 psi | 86% | 3071 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,156 psi | 87% | 3235 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,505 psi | 89% | 3068 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% | 32,503 psi | 53% | 2615 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 41,118 psi | 68% | 2838 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 92% | 47,340 psi | 78% | 3041 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 49,501 psi | 81% | 2936 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,465 psi | 65% | 2815 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 46,108 psi | 76% | 2989 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 36,535 psi | 60% | 2818 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,285 psi | 83% | 2959 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,581 psi | 65% | 2844 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,368 psi | 74% | 2976 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,247 psi | 64% | 2808 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,856 psi | 65% | 2864 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,211 psi | 48% | 2585 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,096 psi | 51% | 2657 fps | 95.4% |
| Alliant Reloder-26 | 61.4 gr | 80% | 31,589 psi | 52% | 2713 fps | 96.6% |
| Bofors RP15 | <<locked>> | 90% | 39,334 psi | 65% | 2851 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 51,039 psi | 84% | 2976 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,945 psi | 69% | 2943 fps | 95.3% |
| Bofors RP5 | <<locked>> | 88% | 39,856 psi | 65% | 2864 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 44,498 psi | 73% | 2848 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 42,308 psi | 69% | 2897 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 51,169 psi | 84% | 2989 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,946 psi | 71% | 2887 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 45,643 psi | 75% | 2907 fps | 97.2% |
| Hodgdon H4831 | <<locked>> | 90% | 45,963 psi | 75% | 2930 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,370 psi | 79% | 2979 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,159 psi | 61% | 2726 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,320 psi | 65% | 2933 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 41,989 psi | 69% | 2900 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 45% | 1729 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,176 psi | 66% | 2772 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,919 psi | 75% | 2877 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 39,262 psi | 64% | 2782 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,892 psi | 79% | 2930 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 43,947 psi | 72% | 2956 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 43,395 psi | 71% | 2825 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 41,814 psi | 69% | 2808 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 31,734 psi | 52% | 2592 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 39,668 psi | 65% | 2799 fps | 95% |
| Norma MRP | 62.5 gr | 84% | 36,303 psi | 60% | 2812 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 40,654 psi | 67% | 2828 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 43,787 psi | 72% | 2966 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 39,363 psi | 65% | 2812 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 39,102 psi | 64% | 2835 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 46% | 1772 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,097 psi | 84% | 2976 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,167 psi | 79% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,872 psi | 67% | 2854 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,407 psi | 65% | 2864 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,245 psi | 60% | 2841 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 48,153 psi | 79% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,714 psi | 72% | 2858 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 38,522 psi | 63% | 2792 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 44,498 psi | 73% | 2848 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,395 psi | 71% | 2825 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 80% | 41,814 psi | 69% | 2808 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,211 psi | 81% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,820 psi | 80% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,554 psi | 70% | 2766 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,814 psi | 67% | 2848 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 48,037 psi | 79% | 2917 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,819 psi | 79% | 2904 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 37,246 psi | 61% | 2782 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,564 psi | 60% | 2713 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 46,108 psi | 76% | 2841 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,018 psi | 69% | 2825 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 38,638 psi | 63% | 2753 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 41,394 psi | 68% | 2825 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,663 psi | 54% | 2671 fps | 97.9% |
| Vihtavuori N560 | 67 gr | 90% | 45,179 psi | 74% | 2995 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 44,817 psi | 74% | 2972 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,973 psi | 67% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,946 psi | 71% | 2887 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,875 psi | 42% | 2569 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,118 psi | 68% | 2815 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 81 powders for 7 mm Blaser Mag. loaded with the .283 | 140gr | Rhino Penetrator. Winchester StaBALL HD delivers the highest muzzle velocity at 3,235 fps; across all powders the maximum-charge window runs from 1,932 fps to 3,235 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 0.283" calls for a 1:10.5 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, Alliant Reloder-26 rank at the top here: for 7 mm Blaser Mag. with the .283 | 140gr | Rhino Penetrator 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.