Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 175gr | Sierra MatchKing 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>> | 94% | 54,447 psi | 90% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,547 psi | 87% | 2710 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,156 psi | 88% | 2828 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 90% | 53,113 psi | 88% | 2766 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 94% | 54,331 psi | 90% | 2825 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,733 psi | 81% | 2730 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,453 psi | 72% | 2697 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,359 psi | 89% | 2762 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,317 psi | 90% | 2776 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,736 psi | 88% | 2756 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,317 psi | 90% | 2822 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 52,040 psi | 86% | 2743 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 51,184 psi | 85% | 2799 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,011 psi | 86% | 2825 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,808 psi | 88% | 2733 fps | 96.3% |
| Bofors RP15 | <<locked>> | 96% | 53,534 psi | 89% | 2808 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,763 psi | 84% | 2799 fps | 99.1% |
| Bofors RP5 | <<locked>> | 94% | 54,317 psi | 90% | 2822 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 51,517 psi | 86% | 2657 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,577 psi | 89% | 2812 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 54,070 psi | 90% | 2762 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,185 psi | 88% | 2720 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 92% | 54,433 psi | 90% | 2766 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,316 psi | 89% | 2749 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,650 psi | 89% | 2687 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,751 psi | 89% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,288 psi | 90% | 2799 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 62% | 1703 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,084 psi | 88% | 2700 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 52,982 psi | 88% | 2680 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 52,837 psi | 88% | 2703 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 52,185 psi | 87% | 2697 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 94% | 52,243 psi | 87% | 2802 fps | 98.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,030 psi | 65% | 2602 fps | 96.4% |
| Lovex S065 | <<locked>> | 84% | 53,708 psi | 89% | 2680 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 51,924 psi | 86% | 2677 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 52,286 psi | 87% | 2700 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,621 psi | 89% | 2749 fps | 99.5% |
| Norma 217ᴾ | <<locked>> | 100% | 38,986 psi | 65% | 2625 fps | 98.5% |
| Norma MRP | <<locked>> | 92% | 54,230 psi | 90% | 2844 fps | 100% |
| Norma URP | <<locked>> | 84% | 51,242 psi | 85% | 2697 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,750 psi | 88% | 2822 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 53,214 psi | 88% | 2749 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 50,937 psi | 85% | 2759 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,869 psi | 63% | 1742 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 52,286 psi | 87% | 2733 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,259 psi | 90% | 2815 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,143 psi | 90% | 2920 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,066 psi | 82% | 2808 fps | 97.7% |
| Rottweil R 904 | <<locked>> | 90% | 54,462 psi | 90% | 2736 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 90% | 52,286 psi | 87% | 2746 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 82% | 51,517 psi | 86% | 2657 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,708 psi | 89% | 2680 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 51,924 psi | 86% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 52,779 psi | 88% | 2635 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 51,866 psi | 86% | 2740 fps | 99.5% |
| Somchem S361 | <<locked>> | 88% | 52,330 psi | 87% | 2677 fps | 98.2% |
| Somchem S365 | <<locked>> | 86% | 51,372 psi | 85% | 2700 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,837 psi | 88% | 2720 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 53,693 psi | 89% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 52,866 psi | 88% | 2687 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 52,054 psi | 86% | 2700 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 84% | 52,054 psi | 86% | 2694 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,201 psi | 90% | 2766 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,128 psi | 90% | 2841 fps | 98.8% |
| Vihtavuori N565 | <<locked>> | 98% | 53,621 psi | 89% | 2818 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,227 psi | 83% | 2815 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 52,040 psi | 86% | 2648 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,317 psi | 90% | 2766 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,794 psi | 88% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,373 psi | 87% | 2713 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% | 34,113 psi | 57% | 2369 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 45,745 psi | 76% | 2605 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,076 psi | 72% | 2648 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 38,101 psi | 63% | 2487 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 39,001 psi | 65% | 2536 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 92% | 37,492 psi | 62% | 2503 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 88% | 29,588 psi | 49% | 2352 fps | 95.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,758 psi | 73% | 2608 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,589 psi | 84% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,174 psi | 63% | 2487 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,040 psi | 57% | 2431 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,822 psi | 55% | 2398 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,558 psi | 47% | 2313 fps | 96.7% |
| Alliant Reloder-26 | 56.7 gr | 80% | 35,766 psi | 59% | 2533 fps | 99.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,632 psi | 82% | 2677 fps | 95.5% |
| Bofors RP15 | <<locked>> | 82% | 33,968 psi | 56% | 2428 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 36,201 psi | 60% | 2516 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 34,040 psi | 57% | 2431 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 48,356 psi | 80% | 2605 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 35,882 psi | 60% | 2467 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 47,384 psi | 79% | 2654 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 49,966 psi | 83% | 2667 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 38,870 psi | 65% | 2487 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 84% | 40,886 psi | 68% | 2530 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,423 psi | 69% | 2500 fps | 100% |
| Hodgdon Retumbo | 57 gr | 86% | 33,910 psi | 56% | 2507 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 46,934 psi | 78% | 2680 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,891 psi | 46% | 1522 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,874 psi | 73% | 2546 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,850 psi | 83% | 2631 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 43,613 psi | 72% | 2556 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,538 psi | 67% | 2484 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 84% | 37,420 psi | 62% | 2516 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,550 psi | 61% | 2546 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 47,471 psi | 79% | 2582 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,629 psi | 76% | 2575 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 29,559 psi | 49% | 2257 fps | 96.5% |
| Norma 204 | <<locked>> | 80% | 43,801 psi | 73% | 2582 fps | 98.1% |
| Norma 217 | <<locked>> | 94% | 32,010 psi | 53% | 2454 fps | 96% |
| Norma MRP | <<locked>> | 80% | 35,520 psi | 59% | 2497 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 44,817 psi | 74% | 2592 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,014 psi | 61% | 2520 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 43,627 psi | 72% | 2592 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 84% | 32,880 psi | 55% | 2405 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 47% | 1558 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,542 psi | 76% | 2625 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,903 psi | 73% | 2648 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,777 psi | 51% | 2418 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,192 psi | 70% | 2680 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 39,595 psi | 66% | 2470 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 37,492 psi | 62% | 2470 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 80% | 48,356 psi | 80% | 2605 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,471 psi | 79% | 2582 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,629 psi | 76% | 2575 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,296 psi | 77% | 2533 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,173 psi | 62% | 2467 fps | 96.7% |
| Somchem S361 | <<locked>> | 80% | 40,248 psi | 67% | 2461 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 41,843 psi | 70% | 2552 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,101 psi | 63% | 2457 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,169 psi | 83% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,282 psi | 77% | 2585 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 32,953 psi | 55% | 2336 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 45,730 psi | 76% | 2592 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 36,825 psi | 61% | 2470 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 38,348 psi | 64% | 2543 fps | 95% |
| Vihtavuori N565 | <<locked>> | 88% | 38,435 psi | 64% | 2539 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 96% | 43,845 psi | 73% | 2697 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,237 psi | 75% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,630 psi | 79% | 2657 fps | 99.7% |
| Winchester StaBALL HD | 54.4 gr | 80% | 29,051 psi | 48% | 2418 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,679 psi | 58% | 2382 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 71 powders for 7 x 75 R SE v. Hofe loaded with the .284 | 175gr | Sierra MatchKing. 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 71 of the 71 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 1:10.0 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. 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 | Sierra MatchKing 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.