Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 175gr | 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 Alliant Reloder-26, Winchester StaBALL HD and Hodgdon Retumbo.
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% | 51,111 psi | 85% | 2680 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,446 psi | 87% | 2710 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,026 psi | 88% | 2825 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 90% | 53,287 psi | 89% | 2766 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 92% | 51,010 psi | 85% | 2772 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,878 psi | 81% | 2730 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,366 psi | 72% | 2694 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,519 psi | 89% | 2762 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,172 psi | 90% | 2772 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,881 psi | 88% | 2759 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,462 psi | 90% | 2822 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,228 psi | 87% | 2743 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,314 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 51,895 psi | 86% | 2822 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,939 psi | 88% | 2733 fps | 96.3% |
| Bofors RP15 | <<locked>> | 96% | 53,432 psi | 89% | 2805 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,937 psi | 85% | 2799 fps | 99.1% |
| Bofors RP5 | <<locked>> | 94% | 54,462 psi | 90% | 2822 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 51,663 psi | 86% | 2657 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,708 psi | 89% | 2812 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 54,230 psi | 90% | 2762 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,316 psi | 89% | 2720 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 54,302 psi | 90% | 2762 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,490 psi | 89% | 2749 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,780 psi | 89% | 2690 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,650 psi | 89% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,143 psi | 90% | 2795 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,057 psi | 62% | 1703 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,011 psi | 88% | 2697 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,156 psi | 88% | 2684 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 52,997 psi | 88% | 2703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,344 psi | 87% | 2700 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 94% | 52,388 psi | 87% | 2805 fps | 99% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 38,943 psi | 65% | 2598 fps | 96.3% |
| Lovex S065 | <<locked>> | 84% | 53,621 psi | 89% | 2680 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 51,837 psi | 86% | 2677 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 52,170 psi | 87% | 2697 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,795 psi | 89% | 2753 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 39,131 psi | 65% | 2628 fps | 98.5% |
| Norma MRP | <<locked>> | 92% | 54,128 psi | 90% | 2841 fps | 100% |
| Norma URP | <<locked>> | 84% | 51,111 psi | 85% | 2694 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,895 psi | 88% | 2825 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 53,388 psi | 89% | 2753 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 50,879 psi | 85% | 2756 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,058 psi | 63% | 1745 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,475 psi | 87% | 2733 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,172 psi | 90% | 2808 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,331 psi | 90% | 2920 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,240 psi | 82% | 2815 fps | 97.8% |
| Rottweil R 904 | <<locked>> | 90% | 54,375 psi | 90% | 2736 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 90% | 52,199 psi | 87% | 2743 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 82% | 51,663 psi | 86% | 2657 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,621 psi | 89% | 2680 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 51,837 psi | 86% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,678 psi | 88% | 2635 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 51,779 psi | 86% | 2740 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 52,228 psi | 87% | 2677 fps | 98.2% |
| Somchem S365 | <<locked>> | 86% | 51,285 psi | 85% | 2697 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,707 psi | 88% | 2717 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 53,606 psi | 89% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,794 psi | 88% | 2687 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,199 psi | 87% | 2700 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 84% | 51,967 psi | 86% | 2690 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,404 psi | 90% | 2769 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,027 psi | 90% | 2838 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 53,780 psi | 89% | 2822 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,415 psi | 84% | 2815 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 51,924 psi | 86% | 2644 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,230 psi | 90% | 2762 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,997 psi | 88% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,518 psi | 87% | 2717 fps | 99.5% |
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% | 34,243 psi | 57% | 2372 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 45,905 psi | 76% | 2605 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,004 psi | 71% | 2644 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 38,261 psi | 64% | 2490 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 38,914 psi | 65% | 2536 fps | 95.6% |
| ADI AR 2217 | <<locked>> | 92% | 37,405 psi | 62% | 2500 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 88% | 29,660 psi | 49% | 2352 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,903 psi | 73% | 2612 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,749 psi | 84% | 2723 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,305 psi | 64% | 2487 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,156 psi | 57% | 2434 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,764 psi | 54% | 2398 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,645 psi | 48% | 2316 fps | 96.8% |
| Alliant Reloder-26 | 56.7 gr | 80% | 35,694 psi | 59% | 2530 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,777 psi | 83% | 2680 fps | 95.6% |
| Bofors RP15 | <<locked>> | 82% | 33,910 psi | 56% | 2428 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 36,347 psi | 60% | 2520 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 34,156 psi | 57% | 2434 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 48,515 psi | 81% | 2605 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 35,810 psi | 59% | 2464 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 47,558 psi | 79% | 2654 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 50,125 psi | 83% | 2667 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 84% | 41,626 psi | 69% | 2543 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,814 psi | 68% | 2526 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,553 psi | 69% | 2503 fps | 100% |
| Hodgdon Retumbo | 57 gr | 86% | 33,852 psi | 56% | 2503 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 46,862 psi | 78% | 2680 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,862 psi | 46% | 1522 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,990 psi | 73% | 2546 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,734 psi | 83% | 2628 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 43,540 psi | 72% | 2552 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,683 psi | 68% | 2487 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 84% | 37,550 psi | 62% | 2516 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,521 psi | 61% | 2543 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 47,398 psi | 79% | 2582 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,759 psi | 76% | 2575 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 29,515 psi | 49% | 2257 fps | 96.5% |
| Norma 204 | <<locked>> | 80% | 43,932 psi | 73% | 2582 fps | 98.1% |
| Norma 217 | <<locked>> | 92% | 30,153 psi | 50% | 2402 fps | 95% |
| Norma MRP | <<locked>> | 80% | 35,636 psi | 59% | 2497 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 44,947 psi | 75% | 2592 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 36,941 psi | 61% | 2516 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 43,743 psi | 73% | 2592 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 84% | 32,982 psi | 55% | 2405 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,398 psi | 47% | 1555 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,701 psi | 76% | 2628 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,816 psi | 73% | 2644 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,748 psi | 51% | 2415 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,308 psi | 70% | 2684 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 39,537 psi | 66% | 2470 fps | 96% |
| Rottweil R 905 | <<locked>> | 80% | 37,608 psi | 62% | 2474 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 48,515 psi | 81% | 2605 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,398 psi | 79% | 2582 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,759 psi | 76% | 2575 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,441 psi | 77% | 2536 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,289 psi | 62% | 2470 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 40,176 psi | 67% | 2457 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 41,974 psi | 70% | 2552 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,218 psi | 63% | 2461 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,328 psi | 84% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,427 psi | 77% | 2589 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,054 psi | 55% | 2339 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 45,658 psi | 76% | 2592 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,782 psi | 61% | 2467 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 82% | 38,276 psi | 64% | 2543 fps | 95% |
| Vihtavuori N565 | <<locked>> | 88% | 38,348 psi | 64% | 2536 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 96% | 43,758 psi | 73% | 2694 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,368 psi | 75% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,558 psi | 79% | 2654 fps | 99.7% |
| Winchester StaBALL HD | 54.5 gr | 80% | 29,138 psi | 48% | 2421 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,780 psi | 58% | 2385 fps | 95.7% |
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 75 powders for 7 x 75 R SE v. Hofe loaded with the .284 | 175gr | Speer TBBC. Hodgdon Retumbo delivers the highest muzzle velocity at 2,923 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,923 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 175.0 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-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. Alliant Reloder-26, Winchester StaBALL HD, Hodgdon Retumbo rank at the top here: for 7 x 75 R SE v. Hofe with the .284 | 175gr | Speer TBBC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.