Load Specifications
Load data in caliber 7 mm Blaser Mag. with .284 | 175gr | A-Square MONO RN bullet and 62 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 ReloadSwiss RS 80.
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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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>> | 90% | 54,172 psi | 89% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 55,114 psi | 90% | 2792 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 52,721 psi | 87% | 2871 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 86% | 52,243 psi | 86% | 2802 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 53,679 psi | 88% | 2867 fps | 99.5% |
| ADI AR 2217 | <<locked>> | 98% | 52,025 psi | 85% | 2841 fps | 99.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,951 psi | 82% | 2861 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 52,605 psi | 86% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 52,098 psi | 86% | 2795 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 54,056 psi | 89% | 2864 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 90% | 52,315 psi | 86% | 2782 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 51,663 psi | 85% | 2844 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 52,069 psi | 85% | 2861 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 52,431 psi | 86% | 2923 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,882 psi | 90% | 2831 fps | 97.8% |
| Bofors RP15 | <<locked>> | 92% | 53,505 psi | 88% | 2854 fps | 99.9% |
| Bofors RP30 | <<locked>> | 98% | 54,926 psi | 90% | 2907 fps | 99.8% |
| Bofors RP5 | <<locked>> | 90% | 54,056 psi | 89% | 2864 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 96% | 53,490 psi | 88% | 2864 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 88% | 53,505 psi | 88% | 2805 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 88% | 52,315 psi | 86% | 2785 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 52,953 psi | 87% | 2723 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 54,085 psi | 89% | 2976 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,391 psi | 61% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,984 psi | 90% | 2782 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 51,953 psi | 85% | 2733 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 54,346 psi | 89% | 2789 fps | 99.3% |
| IMR 7828 SSC | <<locked>> | 90% | 52,025 psi | 85% | 2848 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 45,556 psi | 75% | 2772 fps | 98.8% |
| Lovex S070 | <<locked>> | 82% | 53,693 psi | 88% | 2756 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 52,243 psi | 86% | 2743 fps | 100% |
| Norma 204 | <<locked>> | 82% | 52,489 psi | 86% | 2785 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 46,093 psi | 76% | 2799 fps | 99.9% |
| Norma MRP | <<locked>> | 88% | 54,099 psi | 89% | 2884 fps | 100% |
| Norma URP | <<locked>> | 82% | 53,388 psi | 88% | 2772 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 52,576 psi | 86% | 2867 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 82% | 52,388 psi | 86% | 2782 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,882 psi | 90% | 2858 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,334 psi | 63% | 1804 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 53,592 psi | 88% | 2844 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 54,795 psi | 90% | 2972 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 53,954 psi | 89% | 2933 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 86% | 53,330 psi | 88% | 2772 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 88% | 54,969 psi | 90% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 53,693 psi | 88% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 54,331 psi | 89% | 2713 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 54,563 psi | 90% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 54,462 psi | 89% | 2766 fps | 99.2% |
| Somchem S365 | <<locked>> | 84% | 54,273 psi | 89% | 2776 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 52,156 psi | 86% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,013 psi | 90% | 2762 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 51,677 psi | 85% | 2740 fps | 99.9% |
| Vihtavuori N170 | <<locked>> | 96% | 53,998 psi | 89% | 2808 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 82% | 54,172 psi | 89% | 2769 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 54,375 psi | 89% | 2808 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 53,780 psi | 88% | 2884 fps | 99.3% |
| Vihtavuori N565 | <<locked>> | 94% | 54,114 psi | 89% | 2871 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 98% | 54,853 psi | 90% | 2936 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 98% | 51,866 psi | 85% | 2927 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 54,244 psi | 89% | 2720 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 54,389 psi | 89% | 2913 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 51,517 psi | 85% | 2749 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% | 38,812 psi | 64% | 2510 fps | 99.5% |
| Accurate 4350 | <<locked>> | 80% | 51,488 psi | 85% | 2740 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 39,972 psi | 66% | 2625 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 42,844 psi | 70% | 2635 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 80% | 38,348 psi | 63% | 2572 fps | 96.5% |
| ADI AR 2217 | <<locked>> | 86% | 34,838 psi | 57% | 2490 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 82% | 27,717 psi | 46% | 2339 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 49,371 psi | 81% | 2743 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,801 psi | 70% | 2628 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,827 psi | 64% | 2582 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,449 psi | 61% | 2530 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,416 psi | 53% | 2464 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 80% | 41,800 psi | 69% | 2687 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 96% | 45,266 psi | 74% | 2789 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 45,571 psi | 75% | 2661 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 36,143 psi | 59% | 2520 fps | 97% |
| Bofors RP30 | <<locked>> | 84% | 34,287 psi | 56% | 2507 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 38,827 psi | 64% | 2582 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 82% | 33,112 psi | 54% | 2448 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 80% | 40,712 psi | 67% | 2572 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,161 psi | 66% | 2559 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,456 psi | 76% | 2625 fps | 100% |
| Hodgdon Retumbo | 59.5 gr | 80% | 31,604 psi | 52% | 2487 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,195 psi | 46% | 1578 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,573 psi | 80% | 2677 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 48,660 psi | 80% | 2684 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,235 psi | 69% | 2569 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 80% | 37,028 psi | 61% | 2552 fps | 96.1% |
| IMR 8133 Enduron | <<locked>> | 92% | 34,853 psi | 57% | 2543 fps | 95.7% |
| Lovex S070 | <<locked>> | 80% | 50,589 psi | 83% | 2707 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,533 psi | 55% | 2392 fps | 98.5% |
| Norma 204 | <<locked>> | 80% | 49,110 psi | 81% | 2726 fps | 99.5% |
| Norma 217 | <<locked>> | 86% | 28,689 psi | 47% | 2395 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 40,843 psi | 67% | 2651 fps | 99.3% |
| Norma URP | <<locked>> | 80% | 50,183 psi | 82% | 2723 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 36,680 psi | 60% | 2559 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 80% | 49,081 psi | 81% | 2730 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,750 psi | 54% | 2441 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,747 psi | 47% | 1614 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,806 psi | 82% | 2785 fps | 100% |
| ReloadSwiss RS 76 | 63.7 gr | 80% | 30,603 psi | 50% | 2461 fps | 96.8% |
| ReloadSwiss RS 80 | 70.7 gr | 88% | 37,086 psi | 61% | 2608 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 44,019 psi | 72% | 2612 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 80% | 42,380 psi | 70% | 2618 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 80% | 50,589 psi | 83% | 2707 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,894 psi | 84% | 2661 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,047 psi | 69% | 2615 fps | 98.7% |
| Somchem S361 | <<locked>> | 80% | 44,744 psi | 73% | 2602 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 47,572 psi | 78% | 2677 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,888 psi | 70% | 2598 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 51,532 psi | 85% | 2713 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,202 psi | 61% | 2477 fps | 98% |
| Vihtavuori N170 | <<locked>> | 94% | 50,328 psi | 83% | 2746 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 50,836 psi | 83% | 2720 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,974 psi | 69% | 2605 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,785 psi | 67% | 2641 fps | 96.8% |
| Vihtavuori N565 | <<locked>> | 82% | 35,940 psi | 59% | 2520 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 90% | 41,307 psi | 68% | 2687 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 96% | 48,385 psi | 79% | 2864 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,618 psi | 83% | 2667 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 34,490 psi | 57% | 2579 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,276 psi | 64% | 2526 fps | 98% |
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 68 powders for 7 mm Blaser Mag. loaded with the .284 | 175gr | A-Square MONO RN. Hodgdon Retumbo delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,976 fps. ADI AR 2218 gives the best case fill at 100 %, and 68 of the 68 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 175.0 gr projectile in 0.284" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, 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, ReloadSwiss RS 80 rank at the top here: for 7 mm Blaser Mag. with the .284 | 175gr | A-Square MONO RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-50, IMR 7977 Enduron, Lovex D100 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.