Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 160gr | Speer TBBC bullet and 71 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Accurate MAGPRO 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>> | 94% | 54,244 psi | 89% | 2877 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,141 psi | 86% | 2858 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 52,765 psi | 87% | 2976 fps | 97.8% |
| ADI AR 2209 | <<locked>> | 90% | 52,663 psi | 86% | 2910 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 94% | 54,012 psi | 89% | 2972 fps | 98.8% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,544 psi | 80% | 2874 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,120 psi | 71% | 2831 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,098 psi | 87% | 2913 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 86% | 52,982 psi | 87% | 2913 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 53,896 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,460 psi | 86% | 2904 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,027 psi | 89% | 2969 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,085 psi | 90% | 2940 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,302 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 51,445 psi | 84% | 2972 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,649 psi | 86% | 2877 fps | 95.8% |
| Bofors RP15 | <<locked>> | 96% | 53,229 psi | 87% | 2956 fps | 99.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,401 psi | 83% | 2940 fps | 98.8% |
| Bofors RP5 | <<locked>> | 94% | 54,027 psi | 89% | 2969 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 54,650 psi | 90% | 2861 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,374 psi | 88% | 2959 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 84% | 53,722 psi | 88% | 2910 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 52,924 psi | 87% | 2867 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 92% | 53,998 psi | 89% | 2910 fps | 98.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 52,997 psi | 87% | 2894 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,142 psi | 87% | 2835 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,330 psi | 88% | 3074 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 53,896 psi | 88% | 2949 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 61% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 52,605 psi | 86% | 2844 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,750 psi | 87% | 2831 fps | 99.8% |
| IMR 4831 | <<locked>> | 86% | 52,547 psi | 86% | 2851 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,114 psi | 90% | 2894 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 94% | 51,982 psi | 85% | 2949 fps | 98.6% |
| Lovex S065 | <<locked>> | 84% | 53,301 psi | 88% | 2831 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,752 psi | 90% | 2877 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 51,938 psi | 85% | 2844 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,243 psi | 87% | 2897 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 38,624 psi | 63% | 2756 fps | 98% |
| Norma MRP | <<locked>> | 92% | 53,795 psi | 88% | 2992 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,085 psi | 89% | 2894 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,417 psi | 86% | 2969 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 86% | 52,837 psi | 87% | 2897 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,476 psi | 89% | 2963 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,913 psi | 62% | 1860 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 51,996 psi | 85% | 2881 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 53,795 psi | 88% | 2963 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,012 psi | 89% | 3074 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,834 psi | 80% | 2953 fps | 97.2% |
| Rottweil R 904 | <<locked>> | 90% | 54,099 psi | 89% | 2884 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 90% | 51,851 psi | 85% | 2890 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 54,650 psi | 90% | 2861 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,301 psi | 88% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,752 psi | 90% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,431 psi | 86% | 2782 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 54,940 psi | 90% | 2943 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 51,953 psi | 85% | 2818 fps | 97.8% |
| Somchem S365 | <<locked>> | 88% | 54,317 psi | 89% | 2897 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,489 psi | 86% | 2867 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 82% | 53,171 psi | 87% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,504 psi | 86% | 2835 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 51,895 psi | 85% | 2844 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 86% | 55,071 psi | 90% | 2894 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 53,925 psi | 89% | 2917 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,708 psi | 88% | 2989 fps | 98.5% |
| Vihtavuori N565 | <<locked>> | 98% | 53,505 psi | 88% | 2966 fps | 98.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,183 psi | 82% | 2959 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 51,735 psi | 85% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,940 psi | 89% | 2917 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,460 psi | 86% | 3022 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,170 psi | 86% | 2858 fps | 99.2% |
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% | 33,794 psi | 55% | 2493 fps | 97.6% |
| Accurate 4350 | <<locked>> | 80% | 45,310 psi | 74% | 2746 fps | 100% |
| Accurate MAGPRO | 64.4 gr | 86% | 42,670 psi | 70% | 2782 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 37,811 psi | 62% | 2621 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 86% | 41,278 psi | 68% | 2726 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 94% | 39,726 psi | 65% | 2687 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 90% | 31,256 psi | 51% | 2526 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,159 psi | 63% | 2621 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,511 psi | 71% | 2756 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,198 psi | 82% | 2871 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,811 psi | 62% | 2615 fps | 96.2% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,114 psi | 59% | 2618 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,460 psi | 53% | 2523 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,282 psi | 46% | 2428 fps | 95.9% |
| Alliant Reloder-26 | 60.6 gr | 80% | 35,447 psi | 58% | 2661 fps | 99.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,487 psi | 81% | 2818 fps | 95% |
| Bofors RP15 | <<locked>> | 84% | 35,853 psi | 59% | 2608 fps | 95.5% |
| Bofors RP30 | <<locked>> | 92% | 38,450 psi | 63% | 2703 fps | 95.8% |
| Bofors RP5 | <<locked>> | 82% | 36,114 psi | 59% | 2618 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 48,153 psi | 79% | 2753 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 38,000 psi | 62% | 2651 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 46,992 psi | 77% | 2795 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 49,458 psi | 81% | 2808 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 41,249 psi | 68% | 2674 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,480 psi | 66% | 2657 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,017 psi | 67% | 2638 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 33,605 psi | 55% | 2628 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 46,557 psi | 76% | 2822 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 46% | 1624 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,526 psi | 71% | 2680 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,559 psi | 81% | 2776 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 43,265 psi | 71% | 2697 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,277 psi | 66% | 2618 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 86% | 39,639 psi | 65% | 2703 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 47,050 psi | 77% | 2726 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 45,339 psi | 74% | 2713 fps | 99.3% |
| Lovex S071 | <<locked>> | 80% | 29,211 psi | 48% | 2375 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 43,613 psi | 72% | 2723 fps | 97.7% |
| Norma 217 | <<locked>> | 94% | 31,807 psi | 52% | 2575 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 35,230 psi | 58% | 2625 fps | 97% |
| Norma URP | <<locked>> | 80% | 44,483 psi | 73% | 2733 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,407 psi | 65% | 2713 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 43,424 psi | 71% | 2733 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 32,619 psi | 54% | 2526 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 46% | 1660 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,223 psi | 74% | 2769 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,439 psi | 71% | 2785 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,750 psi | 54% | 2605 fps | 96.1% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 41,959 psi | 69% | 2815 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 39,160 psi | 64% | 2602 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 80% | 37,144 psi | 61% | 2602 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 80% | 48,153 psi | 79% | 2753 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,050 psi | 77% | 2726 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,339 psi | 74% | 2713 fps | 99.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,108 psi | 76% | 2674 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,825 psi | 60% | 2595 fps | 96% |
| Somchem S361 | <<locked>> | 82% | 42,612 psi | 70% | 2648 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 41,408 psi | 68% | 2690 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,695 psi | 62% | 2585 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 80% | 49,879 psi | 82% | 2723 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,861 psi | 75% | 2726 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,619 psi | 54% | 2457 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 45,397 psi | 75% | 2733 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,390 psi | 60% | 2598 fps | 99.6% |
| Vihtavuori N560 | <<locked>> | 84% | 40,698 psi | 67% | 2736 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 90% | 40,741 psi | 67% | 2726 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 96% | 43,453 psi | 71% | 2828 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,904 psi | 74% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,210 psi | 78% | 2802 fps | 99.5% |
| Winchester StaBALL HD | 58.2 gr | 80% | 28,848 psi | 47% | 2543 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,389 psi | 56% | 2510 fps | 95% |
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 | 160gr | Speer TBBC. Hodgdon Retumbo delivers the highest muzzle velocity at 3,074 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,074 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 160.0 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. Winchester StaBALL HD, Accurate MAGPRO, Alliant Reloder-26 rank at the top here: for 7 mm Blaser Mag. with the .284 | 160gr | Speer TBBC 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.