Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 160gr | Woodleigh PP SN bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Winchester StaBALL HD and ReloadSwiss RS 76.
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>> | 92% | 51,880 psi | 85% | 2848 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 53,243 psi | 87% | 2881 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 54,085 psi | 89% | 2999 fps | 98.1% |
| ADI AR 2209 | <<locked>> | 90% | 53,853 psi | 88% | 2936 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 92% | 51,619 psi | 85% | 2936 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,647 psi | 82% | 2897 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,353 psi | 73% | 2864 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 54,230 psi | 89% | 2936 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 54,114 psi | 89% | 2936 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,027 psi | 90% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,592 psi | 88% | 2930 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 51,706 psi | 85% | 2936 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 94% | 53,055 psi | 87% | 2913 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 52,185 psi | 86% | 2972 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,982 psi | 87% | 2995 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,563 psi | 88% | 2900 fps | 96.2% |
| Bofors RP15 | <<locked>> | 96% | 54,302 psi | 89% | 2979 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,938 psi | 85% | 2972 fps | 99.1% |
| Bofors RP5 | <<locked>> | 92% | 51,706 psi | 85% | 2936 fps | 99.4% |
| Bofors RP7 | <<locked>> | 82% | 52,040 psi | 85% | 2825 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,781 psi | 90% | 2989 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 54,708 psi | 90% | 2933 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,925 psi | 89% | 2890 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 90% | 51,619 psi | 85% | 2877 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,070 psi | 89% | 2917 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 54,447 psi | 89% | 2858 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,882 psi | 90% | 3104 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,071 psi | 90% | 2972 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,101 psi | 61% | 1824 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,737 psi | 88% | 2867 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,490 psi | 88% | 2848 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 53,592 psi | 88% | 2874 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,823 psi | 87% | 2864 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 94% | 53,098 psi | 87% | 2976 fps | 98.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,827 psi | 65% | 2759 fps | 96.2% |
| Lovex S065 | <<locked>> | 84% | 54,302 psi | 89% | 2851 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 52,402 psi | 86% | 2844 fps | 99.9% |
| Lovex S071 | <<locked>> | 98% | 53,127 psi | 87% | 2867 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,418 psi | 89% | 2920 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,943 psi | 66% | 2789 fps | 98.5% |
| Norma MRP | <<locked>> | 90% | 51,503 psi | 85% | 2959 fps | 99.9% |
| Norma URP | <<locked>> | 84% | 51,750 psi | 85% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,795 psi | 88% | 2999 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 53,998 psi | 89% | 2923 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 51,982 psi | 85% | 2927 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,000 psi | 62% | 1867 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 53,258 psi | 87% | 2904 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,056 psi | 90% | 2986 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 51,619 psi | 85% | 3038 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,444 psi | 83% | 2986 fps | 97.7% |
| Rottweil R 904 | <<locked>> | 88% | 51,634 psi | 85% | 2848 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 90% | 53,055 psi | 87% | 2917 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 82% | 52,040 psi | 85% | 2825 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 54,302 psi | 89% | 2851 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 52,402 psi | 86% | 2844 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,301 psi | 88% | 2802 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 52,634 psi | 86% | 2913 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 53,127 psi | 87% | 2844 fps | 98.1% |
| Somchem S365 | <<locked>> | 86% | 52,156 psi | 86% | 2867 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,577 psi | 88% | 2890 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 54,215 psi | 89% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,519 psi | 88% | 2858 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,924 psi | 87% | 2867 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 84% | 52,707 psi | 87% | 2861 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 51,793 psi | 85% | 2890 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,027 psi | 90% | 3015 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 98% | 54,752 psi | 90% | 2989 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,590 psi | 85% | 2989 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,852 psi | 87% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,940 psi | 90% | 2936 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 54,215 psi | 89% | 3048 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 53,229 psi | 87% | 2881 fps | 99.4% |
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% | 34,693 psi | 57% | 2520 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 46,441 psi | 76% | 2769 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,772 psi | 72% | 2808 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 38,682 psi | 64% | 2644 fps | 96.6% |
| ADI AR 2213 | <<locked>> | 84% | 39,421 psi | 65% | 2690 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 92% | 38,029 psi | 62% | 2654 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 90% | 31,981 psi | 53% | 2556 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,073 psi | 64% | 2648 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,425 psi | 73% | 2776 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,329 psi | 84% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,711 psi | 64% | 2641 fps | 96.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,490 psi | 57% | 2579 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,214 psi | 55% | 2546 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,993 psi | 48% | 2457 fps | 96.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,390 psi | 60% | 2687 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 50,386 psi | 83% | 2844 fps | 95.4% |
| Bofors RP15 | <<locked>> | 82% | 34,403 psi | 56% | 2575 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 36,956 psi | 61% | 2671 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 34,490 psi | 57% | 2579 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,936 psi | 80% | 2769 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 36,419 psi | 60% | 2618 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 48,008 psi | 79% | 2818 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,459 psi | 83% | 2835 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 84% | 42,105 psi | 69% | 2697 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,336 psi | 68% | 2680 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,901 psi | 69% | 2657 fps | 100% |
| Hodgdon Retumbo | 62.1 gr | 86% | 34,360 psi | 56% | 2654 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 47,471 psi | 78% | 2844 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,876 psi | 46% | 1631 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,483 psi | 73% | 2707 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,314 psi | 83% | 2795 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 44,106 psi | 72% | 2713 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 41,118 psi | 68% | 2641 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 40,640 psi | 67% | 2733 fps | 96% |
| IMR 8133 Enduron | <<locked>> | 98% | 37,304 psi | 61% | 2700 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 47,819 psi | 79% | 2746 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 46,311 psi | 76% | 2740 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 29,921 psi | 49% | 2395 fps | 96.2% |
| Norma 204 | <<locked>> | 80% | 44,541 psi | 73% | 2746 fps | 98% |
| Norma 217 | <<locked>> | 94% | 32,648 psi | 54% | 2605 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 36,129 psi | 59% | 2651 fps | 97.4% |
| Norma URP | <<locked>> | 80% | 45,527 psi | 75% | 2756 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,623 psi | 62% | 2674 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 44,338 psi | 73% | 2756 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 33,460 psi | 55% | 2552 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 47% | 1667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,238 psi | 76% | 2789 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,382 psi | 73% | 2808 fps | 100% |
| ReloadSwiss RS 76 | 65 gr | 84% | 31,343 psi | 51% | 2566 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 43,221 psi | 71% | 2844 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 40,045 psi | 66% | 2625 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 38,087 psi | 63% | 2628 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,936 psi | 80% | 2769 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,819 psi | 79% | 2746 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 46,311 psi | 76% | 2740 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,862 psi | 77% | 2694 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,797 psi | 62% | 2625 fps | 96.5% |
| Somchem S361 | <<locked>> | 80% | 40,611 psi | 67% | 2612 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 42,569 psi | 70% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,595 psi | 63% | 2608 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 50,923 psi | 84% | 2743 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,905 psi | 77% | 2749 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,431 psi | 55% | 2480 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 46,151 psi | 76% | 2753 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,391 psi | 61% | 2625 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 84% | 41,756 psi | 69% | 2762 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 88% | 39,146 psi | 64% | 2694 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 96% | 44,802 psi | 74% | 2861 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,021 psi | 76% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,240 psi | 79% | 2825 fps | 99.6% |
| Winchester StaBALL HD | 59.4 gr | 80% | 29,617 psi | 49% | 2569 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,215 psi | 58% | 2533 fps | 95.4% |
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 72 powders for 7 mm Blaser Mag. loaded with the .284 | 160gr | Woodleigh PP SN. Hodgdon Retumbo delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,104 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Hodgdon Retumbo, Winchester StaBALL HD, ReloadSwiss RS 76 rank at the top here: for 7 mm Blaser Mag. with the .284 | 160gr | Woodleigh PP SN 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.