Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 158gr | Prvi Partizan Grom 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, IMR 7828 SSC and Norma MRP.
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% | 51,517 psi | 86% | 2825 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 53,113 psi | 88% | 2864 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 53,490 psi | 89% | 2966 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 92% | 53,780 psi | 89% | 2913 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 94% | 51,561 psi | 86% | 2910 fps | 97.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,006 psi | 76% | 2799 fps | 96.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,828 psi | 68% | 2759 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,954 psi | 90% | 2920 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 51,242 psi | 85% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,287 psi | 89% | 2900 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 51,314 psi | 85% | 2910 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,170 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,517 psi | 86% | 2943 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,112 psi | 87% | 2972 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,853 psi | 89% | 2949 fps | 99.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,543 psi | 79% | 2877 fps | 97.8% |
| Bofors RP5 | <<locked>> | 94% | 51,314 psi | 85% | 2910 fps | 99% |
| Bofors RP7 | <<locked>> | 84% | 52,620 psi | 87% | 2812 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,676 psi | 84% | 2890 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 84% | 51,343 psi | 85% | 2858 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 54,041 psi | 90% | 2867 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 92% | 51,474 psi | 86% | 2851 fps | 97.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,085 psi | 90% | 2894 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,230 psi | 90% | 2838 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,386 psi | 84% | 3002 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 84% | 51,140 psi | 85% | 2887 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,840 psi | 61% | 1795 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,838 psi | 89% | 2848 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,867 psi | 89% | 2831 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 53,345 psi | 89% | 2851 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,982 psi | 88% | 2841 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 96% | 52,736 psi | 88% | 2943 fps | 98.2% |
| Lovex S065 | <<locked>> | 86% | 54,418 psi | 90% | 2831 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 52,460 psi | 87% | 2825 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,518 psi | 87% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 86% | 51,097 psi | 85% | 2844 fps | 98.6% |
| Norma 217ᴾ | <<locked>> | 100% | 36,361 psi | 60% | 2680 fps | 96.6% |
| Norma MRP | <<locked>> | 92% | 50,720 psi | 84% | 2927 fps | 99.6% |
| Norma URP | <<locked>> | 86% | 51,619 psi | 86% | 2844 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,258 psi | 88% | 2963 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 54,041 psi | 90% | 2904 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 51,416 psi | 85% | 2897 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,753 psi | 63% | 1841 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,433 psi | 90% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,040 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 51,198 psi | 85% | 2910 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,792 psi | 84% | 2999 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 53,679 psi | 89% | 2815 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 51,735 psi | 86% | 2825 fps | 98% |
| Rottweil R 905 | <<locked>> | 92% | 52,852 psi | 88% | 2890 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 84% | 52,620 psi | 87% | 2812 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,418 psi | 90% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 52,460 psi | 87% | 2825 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,693 psi | 89% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,737 psi | 89% | 2785 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,417 psi | 87% | 2887 fps | 99.1% |
| Somchem S355 | <<locked>> | 82% | 53,505 psi | 89% | 2808 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,287 psi | 89% | 2822 fps | 97.6% |
| Somchem S365 | <<locked>> | 88% | 51,648 psi | 86% | 2848 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,301 psi | 89% | 2864 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 51,242 psi | 85% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,563 psi | 89% | 2838 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,649 psi | 87% | 2841 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 86% | 52,591 psi | 87% | 2841 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 51,198 psi | 85% | 2864 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 50,792 psi | 84% | 2920 fps | 97.4% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,056 psi | 90% | 2959 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,823 psi | 88% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 51,561 psi | 86% | 2861 fps | 99.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,750 psi | 88% | 3022 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,011 psi | 88% | 2854 fps | 99% |
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% | 32,082 psi | 53% | 2438 fps | 96.4% |
| Accurate 4350 | <<locked>> | 80% | 43,192 psi | 72% | 2694 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 46,398 psi | 77% | 2838 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 82% | 38,769 psi | 64% | 2625 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 88% | 42,148 psi | 70% | 2726 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 96% | 40,277 psi | 67% | 2677 fps | 95% |
| ADI AR 2225 | <<locked>> | 94% | 33,692 psi | 56% | 2575 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,510 psi | 69% | 2703 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,819 psi | 79% | 2822 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,696 psi | 64% | 2618 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,593 psi | 61% | 2615 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,777 psi | 51% | 2467 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,848 psi | 48% | 2428 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,402 psi | 55% | 2598 fps | 98.3% |
| Bofors RP15 | <<locked>> | 86% | 36,303 psi | 60% | 2605 fps | 95% |
| Bofors RP30 | <<locked>> | 94% | 38,783 psi | 64% | 2697 fps | 95.3% |
| Bofors RP5 | <<locked>> | 84% | 36,593 psi | 61% | 2615 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 46,325 psi | 77% | 2700 fps | 98.7% |
| Hodgdon H1000 | <<locked>> | 92% | 38,595 psi | 64% | 2644 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 44,904 psi | 75% | 2740 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 47,630 psi | 79% | 2759 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 88% | 45,121 psi | 75% | 2736 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,222 psi | 73% | 2717 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,044 psi | 65% | 2589 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,332 psi | 60% | 2684 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 44,150 psi | 73% | 2762 fps | 98.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,702 psi | 46% | 1608 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,829 psi | 69% | 2631 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,790 psi | 79% | 2726 fps | 99.2% |
| IMR 4831 | <<locked>> | 80% | 41,321 psi | 69% | 2644 fps | 99.8% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,005 psi | 73% | 2677 fps | 95.6% |
| IMR 7828 SSC | 59.9 gr | 88% | 40,422 psi | 67% | 2703 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 45,208 psi | 75% | 2677 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 43,540 psi | 72% | 2664 fps | 98.7% |
| Lovex S071 | <<locked>> | 82% | 29,472 psi | 49% | 2369 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 41,684 psi | 69% | 2664 fps | 96.6% |
| Norma 217 | <<locked>> | 98% | 34,113 psi | 57% | 2621 fps | 95.6% |
| Norma MRP | 56.6 gr | 80% | 33,446 psi | 56% | 2562 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 42,511 psi | 71% | 2684 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 40,030 psi | 67% | 2707 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 41,437 psi | 69% | 2677 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 35,607 psi | 59% | 2585 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,195 psi | 47% | 1644 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,734 psi | 84% | 2864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,062 psi | 72% | 2713 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,263 psi | 69% | 2726 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,286 psi | 55% | 2595 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 50,154 psi | 83% | 2759 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 40,147 psi | 67% | 2602 fps | 95% |
| Rottweil R 905 | <<locked>> | 82% | 37,768 psi | 63% | 2598 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 46,325 psi | 77% | 2700 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,208 psi | 75% | 2677 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 43,540 psi | 72% | 2664 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,705 psi | 84% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,237 psi | 73% | 2625 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,434 psi | 62% | 2595 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 50,096 psi | 83% | 2756 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,569 psi | 72% | 2648 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 39,334 psi | 65% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,013 psi | 60% | 2533 fps | 96.1% |
| Vihtavuori N150 | <<locked>> | 80% | 47,950 psi | 80% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,976 psi | 73% | 2680 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 35,505 psi | 59% | 2513 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 43,410 psi | 72% | 2684 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 34,447 psi | 57% | 2543 fps | 99% |
| Vihtavuori N560 | <<locked>> | 88% | 44,309 psi | 74% | 2795 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 92% | 41,118 psi | 68% | 2717 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,902 psi | 71% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,107 psi | 75% | 2746 fps | 98.9% |
| Winchester StaBALL HD | 56 gr | 80% | 27,354 psi | 45% | 2474 fps | 99.1% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,594 psi | 62% | 2566 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 77 powders for 7 x 75 R SE v. Hofe loaded with the .284 | 158gr | Prvi Partizan Grom. Winchester StaBALL HD delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,795 fps to 3,022 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 158.0 gr projectile in 0.284" calls for a 1:11.0 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, IMR 7828 SSC, Norma MRP rank at the top here: for 7 x 75 R SE v. Hofe with the .284 | 158gr | Prvi Partizan Grom they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Vihtavuori N170, Vihtavuori N570 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.