Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 150gr | Barnes X BT bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Ramshot Grand and Winchester StaBALL HD.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 92% | 52,083 psi | 86% | 2913 fps | 99.9% |
| Accurate 4350 | <<locked>> | 84% | 53,301 psi | 88% | 2946 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 52,591 psi | 86% | 3051 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 92% | 53,243 psi | 87% | 3048 fps | 97.2% |
| ADI AR 2209 | <<locked>> | 90% | 53,113 psi | 87% | 2989 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 94% | 54,476 psi | 89% | 3048 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,037 psi | 81% | 2940 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,947 psi | 72% | 2907 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,403 psi | 88% | 2986 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,098 psi | 87% | 2992 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,128 psi | 89% | 3009 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,823 psi | 87% | 2979 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,592 psi | 90% | 3051 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,257 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,795 psi | 90% | 3084 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,199 psi | 86% | 3061 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 53,635 psi | 88% | 3035 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,879 psi | 84% | 3018 fps | 98.3% |
| Bofors RP5 | <<locked>> | 94% | 54,592 psi | 90% | 3051 fps | 99.3% |
| Bofors RP7 | <<locked>> | 82% | 52,054 psi | 85% | 2881 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,621 psi | 88% | 3028 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 84% | 54,114 psi | 89% | 2989 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 82% | 53,301 psi | 88% | 2943 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 92% | 54,462 psi | 89% | 2986 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,287 psi | 87% | 2966 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,795 psi | 88% | 2920 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,577 psi | 88% | 3146 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 54,099 psi | 89% | 3022 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,362 psi | 61% | 1870 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,229 psi | 87% | 2920 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,069 psi | 87% | 2904 fps | 99.6% |
| IMR 4831 | <<locked>> | 86% | 53,345 psi | 88% | 2933 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,402 psi | 86% | 2913 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 94% | 52,257 psi | 86% | 3022 fps | 98% |
| Lovex S065 | <<locked>> | 84% | 54,128 psi | 89% | 2910 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,562 psi | 86% | 2907 fps | 99.7% |
| Lovex S071 | <<locked>> | 98% | 53,272 psi | 87% | 2933 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,824 psi | 88% | 2972 fps | 98.9% |
| Norma 217ᴾ | <<locked>> | 100% | 40,030 psi | 66% | 2844 fps | 97.7% |
| Norma MRP | <<locked>> | 92% | 54,172 psi | 89% | 3071 fps | 99.8% |
| Norma URP | <<locked>> | 86% | 54,868 psi | 90% | 2979 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,678 psi | 86% | 3041 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 86% | 53,519 psi | 88% | 2982 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,969 psi | 90% | 3041 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,130 psi | 63% | 1913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,721 psi | 87% | 2966 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,230 psi | 89% | 3045 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,389 psi | 89% | 3146 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,516 psi | 81% | 3028 fps | 96.6% |
| Rottweil R 904 | <<locked>> | 90% | 54,404 psi | 89% | 2956 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 90% | 52,388 psi | 86% | 2969 fps | 99% |
| Rottweil R 907 | <<locked>> | 82% | 52,054 psi | 85% | 2881 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 54,128 psi | 89% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,562 psi | 86% | 2907 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,287 psi | 87% | 2858 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 51,953 psi | 85% | 2963 fps | 98.9% |
| Somchem S361 | <<locked>> | 88% | 52,736 psi | 87% | 2894 fps | 97.3% |
| Somchem S365 | <<locked>> | 88% | 55,085 psi | 90% | 2982 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,229 psi | 87% | 2946 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 82% | 54,128 psi | 89% | 2858 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,011 psi | 87% | 2913 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,388 psi | 86% | 2920 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 84% | 52,518 psi | 86% | 2923 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 55,085 psi | 90% | 3005 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,954 psi | 89% | 3061 fps | 97.9% |
| Vihtavuori N565 | <<locked>> | 98% | 54,201 psi | 89% | 3045 fps | 98.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,662 psi | 83% | 3035 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,069 psi | 85% | 2871 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,389 psi | 89% | 2992 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,417 psi | 86% | 3107 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,649 psi | 86% | 2933 fps | 98.8% |
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>> | 80% | 35,868 psi | 59% | 2595 fps | 97.5% |
| Accurate 4350 | <<locked>> | 80% | 46,992 psi | 77% | 2838 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 40,350 psi | 66% | 2802 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 88% | 46,528 psi | 76% | 2923 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 38,812 psi | 64% | 2700 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 86% | 42,206 psi | 69% | 2805 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 96% | 43,207 psi | 71% | 2822 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 90% | 32,764 psi | 54% | 2615 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,218 psi | 64% | 2703 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,092 psi | 72% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,546 psi | 83% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,914 psi | 64% | 2700 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 37,202 psi | 61% | 2700 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,895 psi | 56% | 2618 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,849 psi | 49% | 2523 fps | 95.8% |
| Alliant Reloder-26 | 60.4 gr | 80% | 36,753 psi | 60% | 2756 fps | 99.1% |
| Bofors RP15 | <<locked>> | 84% | 37,115 psi | 61% | 2697 fps | 95.1% |
| Bofors RP30 | <<locked>> | 92% | 39,552 psi | 65% | 2789 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 37,202 psi | 61% | 2700 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 49,211 psi | 81% | 2831 fps | 99% |
| Hodgdon H1000 | <<locked>> | 90% | 38,957 psi | 64% | 2726 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 47,906 psi | 79% | 2877 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 50,125 psi | 82% | 2884 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 44,904 psi | 74% | 2808 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,121 psi | 72% | 2792 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,134 psi | 69% | 2723 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 37,130 psi | 61% | 2776 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 47,108 psi | 77% | 2900 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 46% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,411 psi | 73% | 2759 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,995 psi | 82% | 2851 fps | 99.3% |
| IMR 4831 | <<locked>> | 80% | 44,367 psi | 73% | 2779 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,743 psi | 72% | 2749 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 43,265 psi | 71% | 2844 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 48,269 psi | 79% | 2808 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 46,673 psi | 77% | 2802 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 31,256 psi | 51% | 2474 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 44,309 psi | 73% | 2795 fps | 97.1% |
| Norma 217 | <<locked>> | 94% | 33,373 psi | 55% | 2671 fps | 95% |
| Norma MRP | <<locked>> | 80% | 36,463 psi | 60% | 2713 fps | 96.6% |
| Norma URP | <<locked>> | 80% | 45,600 psi | 75% | 2822 fps | 99.9% |
| Ramshot Grand | 62.5 gr | 86% | 40,321 psi | 66% | 2789 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 44,208 psi | 73% | 2812 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 36,434 psi | 60% | 2674 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,718 psi | 47% | 1713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,427 psi | 76% | 2854 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,295 psi | 73% | 2867 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 34,142 psi | 56% | 2690 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 46,209 psi | 76% | 2963 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 82% | 42,757 psi | 70% | 2733 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 38,421 psi | 63% | 2687 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 49,211 psi | 81% | 2831 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,269 psi | 79% | 2808 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 46,673 psi | 77% | 2802 fps | 99.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,166 psi | 77% | 2753 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,087 psi | 63% | 2680 fps | 95.7% |
| Somchem S361 | <<locked>> | 82% | 43,671 psi | 72% | 2723 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 42,612 psi | 70% | 2779 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,189 psi | 64% | 2674 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 80% | 50,894 psi | 84% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,891 psi | 77% | 2812 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 36,201 psi | 59% | 2598 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 46,354 psi | 76% | 2815 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 38,101 psi | 63% | 2697 fps | 99.6% |
| Vihtavuori N560 | <<locked>> | 86% | 44,353 psi | 73% | 2877 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 90% | 41,989 psi | 69% | 2812 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 47,369 psi | 78% | 2972 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,701 psi | 75% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,906 psi | 79% | 2877 fps | 99.2% |
| Winchester StaBALL HD | 58 gr | 80% | 30,429 psi | 50% | 2641 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 82% | 38,014 psi | 62% | 2648 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 71 powders for 7 mm Blaser Mag. loaded with the .284 | 150gr | Barnes X BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,146 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,146 fps. ADI AR 2217 gives the best case fill at 100 %, and 71 of the 71 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (420 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" 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. Alliant Reloder-26, Ramshot Grand, Winchester StaBALL HD rank at the top here: for 7 mm Blaser Mag. with the .284 | 150gr | Barnes X 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.