Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 174gr | Prvi Partizan FMJ 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 Hodgdon Retumbo, ReloadSwiss RS 76 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.
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Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 51,924 psi | 85% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 52,997 psi | 87% | 2762 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 54,201 psi | 89% | 2894 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 88% | 53,606 psi | 88% | 2825 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 51,517 psi | 85% | 2831 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 53,084 psi | 87% | 2858 fps | 99.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,674 psi | 78% | 2822 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 53,983 psi | 89% | 2822 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 53,983 psi | 89% | 2822 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 54,114 psi | 89% | 2818 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 53,359 psi | 88% | 2815 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 51,808 psi | 85% | 2828 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 53,258 psi | 87% | 2799 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 52,533 psi | 86% | 2861 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 53,359 psi | 88% | 2884 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 49,748 psi | 82% | 2877 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 53,011 psi | 87% | 2795 fps | 97.1% |
| Bofors RP15 | <<locked>> | 94% | 54,694 psi | 90% | 2874 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 52,257 psi | 86% | 2867 fps | 99.6% |
| Bofors RP5 | <<locked>> | 90% | 51,808 psi | 85% | 2828 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 54,882 psi | 90% | 2759 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 54,607 psi | 90% | 2881 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 82% | 54,375 psi | 89% | 2815 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 54,839 psi | 90% | 2825 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 53,824 psi | 88% | 2808 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 54,346 psi | 89% | 2743 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 55,100 psi | 90% | 2995 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 54,810 psi | 90% | 2854 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,318 psi | 61% | 1752 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 53,243 psi | 87% | 2753 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 53,301 psi | 88% | 2756 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 52,344 psi | 86% | 2753 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 92% | 53,185 psi | 87% | 2867 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 43,134 psi | 71% | 2730 fps | 98.1% |
| Lovex S065 | <<locked>> | 82% | 53,650 psi | 88% | 2730 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 52,127 psi | 86% | 2730 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 53,359 psi | 88% | 2762 fps | 100% |
| Norma 204 | <<locked>> | 84% | 54,085 psi | 89% | 2808 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 43,511 psi | 71% | 2756 fps | 99.6% |
| Norma MRP | <<locked>> | 88% | 51,547 psi | 85% | 2844 fps | 100% |
| Norma URP | <<locked>> | 84% | 55,027 psi | 90% | 2799 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 53,824 psi | 88% | 2887 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 53,838 psi | 88% | 2805 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 52,228 psi | 86% | 2822 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,261 psi | 63% | 1798 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 52,953 psi | 87% | 2785 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,897 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 51,750 psi | 85% | 2930 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 55,071 psi | 90% | 2956 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 88% | 54,766 psi | 90% | 2795 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 52,910 psi | 87% | 2805 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 54,882 psi | 90% | 2759 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 53,650 psi | 88% | 2730 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 52,127 psi | 86% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 52,620 psi | 86% | 2684 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 52,504 psi | 86% | 2799 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 52,620 psi | 86% | 2733 fps | 98.8% |
| Somchem S365 | <<locked>> | 84% | 52,170 psi | 86% | 2749 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 53,417 psi | 88% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 53,084 psi | 87% | 2736 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 53,098 psi | 87% | 2762 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 52,388 psi | 86% | 2743 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 52,156 psi | 86% | 2779 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,984 psi | 90% | 2904 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 94% | 51,547 psi | 85% | 2831 fps | 99% |
| Vihtavuori N568 | <<locked>> | 98% | 52,040 psi | 85% | 2890 fps | 98.3% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,794 psi | 87% | 2946 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 52,359 psi | 86% | 2694 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 54,621 psi | 90% | 2818 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 51,300 psi | 84% | 2881 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 53,055 psi | 87% | 2772 fps | 99.8% |
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% | 37,275 psi | 61% | 2480 fps | 99.2% |
| Accurate 4350 | <<locked>> | 80% | 49,617 psi | 81% | 2710 fps | 100% |
| Accurate MAGPRO | <<locked>> | 82% | 40,901 psi | 67% | 2648 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 41,263 psi | 68% | 2602 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 80% | 36,782 psi | 60% | 2536 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 88% | 35,607 psi | 58% | 2507 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 84% | 28,384 psi | 47% | 2359 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,669 psi | 68% | 2602 fps | 98.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 41,669 psi | 68% | 2602 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 47,471 psi | 78% | 2717 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 41,278 psi | 68% | 2598 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 37,130 psi | 61% | 2546 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,795 psi | 59% | 2500 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,096 psi | 51% | 2431 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,668 psi | 65% | 2651 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 46,079 psi | 76% | 2805 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,905 psi | 77% | 2684 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 34,476 psi | 57% | 2480 fps | 96.2% |
| Bofors RP30 | <<locked>> | 86% | 34,925 psi | 57% | 2526 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 37,130 psi | 61% | 2546 fps | 97.3% |
| Bofors RP7 | <<locked>> | 80% | 51,561 psi | 85% | 2710 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 33,953 psi | 56% | 2467 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 51,082 psi | 84% | 2762 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 39,291 psi | 65% | 2539 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,551 psi | 63% | 2526 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,672 psi | 73% | 2595 fps | 100% |
| Hodgdon Retumbo | 59 gr | 82% | 32,329 psi | 53% | 2507 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 50,937 psi | 84% | 2795 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,036 psi | 46% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 47,050 psi | 77% | 2651 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 46,949 psi | 77% | 2654 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,901 psi | 67% | 2539 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 80% | 35,447 psi | 58% | 2516 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,360 psi | 58% | 2559 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 50,444 psi | 83% | 2680 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,805 psi | 80% | 2677 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,198 psi | 53% | 2362 fps | 98% |
| Norma 204 | <<locked>> | 80% | 47,166 psi | 77% | 2694 fps | 99.1% |
| Norma 217 | <<locked>> | 88% | 29,066 psi | 48% | 2411 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 39,015 psi | 64% | 2615 fps | 98.9% |
| Norma URP | <<locked>> | 80% | 48,211 psi | 79% | 2694 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,099 psi | 58% | 2523 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 47,050 psi | 77% | 2697 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,198 psi | 51% | 2405 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,761 psi | 47% | 1604 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,472 psi | 81% | 2733 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,659 psi | 78% | 2756 fps | 100% |
| ReloadSwiss RS 76 | 61.6 gr | 80% | 29,225 psi | 48% | 2415 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 37,739 psi | 62% | 2625 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 42,511 psi | 70% | 2579 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 40,582 psi | 67% | 2582 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 80% | 51,561 psi | 85% | 2710 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,444 psi | 83% | 2680 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,805 psi | 80% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,414 psi | 81% | 2635 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,248 psi | 66% | 2579 fps | 98.1% |
| Somchem S361 | <<locked>> | 80% | 43,105 psi | 71% | 2566 fps | 96.9% |
| Somchem S365 | <<locked>> | 80% | 45,701 psi | 75% | 2651 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 41,191 psi | 68% | 2566 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 49,821 psi | 82% | 2687 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,810 psi | 59% | 2444 fps | 97.3% |
| Vihtavuori N550 | <<locked>> | 80% | 49,023 psi | 80% | 2690 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 40,030 psi | 66% | 2572 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 39,044 psi | 64% | 2605 fps | 96% |
| Vihtavuori N565 | <<locked>> | 84% | 36,854 psi | 61% | 2543 fps | 95.5% |
| Vihtavuori N568 | <<locked>> | 92% | 42,119 psi | 69% | 2707 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 98% | 49,153 psi | 81% | 2881 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,762 psi | 80% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 51,082 psi | 84% | 2762 fps | 100% |
| Winchester StaBALL HD | 59.1 gr | 80% | 32,242 psi | 53% | 2539 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,695 psi | 62% | 2493 fps | 97.3% |
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 | 174gr | Prvi Partizan FMJ BT. Hodgdon Retumbo delivers the highest muzzle velocity at 2,995 fps; across all powders the maximum-charge window runs from 1,752 fps to 2,995 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 174.0 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, Alliant Reloder-33 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, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for 7 mm Blaser Mag. with the .284 | 174gr | Prvi Partizan FMJ 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.