Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 150gr | Swift Scirocco bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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>> | 96% | 51,271 psi | 85% | 2884 fps | 99.7% |
| Accurate 4350 | <<locked>> | 88% | 53,069 psi | 88% | 2927 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 53,417 psi | 89% | 3028 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 82% | 51,967 psi | 86% | 2844 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,056 psi | 90% | 2979 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 51,605 psi | 86% | 2969 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,232 psi | 64% | 2746 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,866 psi | 88% | 2871 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,969 psi | 90% | 2986 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 51,387 psi | 85% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,461 psi | 89% | 2966 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 96% | 51,039 psi | 85% | 2969 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 51,967 psi | 86% | 2956 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,892 psi | 80% | 2943 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,692 psi | 86% | 3035 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,635 psi | 89% | 3012 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 53,708 psi | 89% | 2887 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,845 psi | 73% | 2864 fps | 96.1% |
| Bofors RP5 | <<locked>> | 96% | 51,039 psi | 85% | 2969 fps | 98.4% |
| Bofors RP7 | <<locked>> | 86% | 53,026 psi | 88% | 2877 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,369 psi | 79% | 2881 fps | 97.1% |
| Hodgdon H380 | <<locked>> | 82% | 53,940 psi | 90% | 2904 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 51,634 psi | 86% | 2927 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 84% | 51,329 psi | 85% | 2884 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 94% | 51,779 psi | 86% | 2913 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,186 psi | 90% | 2953 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,317 psi | 90% | 2910 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,050 psi | 78% | 2992 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 86% | 51,416 psi | 85% | 2956 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 61% | 1831 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,172 psi | 90% | 2913 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 51,372 psi | 85% | 2851 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 53,693 psi | 89% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 53,447 psi | 89% | 2904 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 52,968 psi | 88% | 3009 fps | 97.6% |
| Lovex S065 | <<locked>> | 86% | 51,532 psi | 86% | 2848 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 53,011 psi | 88% | 2894 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,965 psi | 81% | 2848 fps | 99.6% |
| Norma 204 | <<locked>> | 88% | 51,285 psi | 85% | 2904 fps | 98.1% |
| Norma MRP | <<locked>> | 96% | 54,273 psi | 90% | 3054 fps | 99.7% |
| Norma URP | <<locked>> | 88% | 51,953 psi | 86% | 2917 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,156 psi | 88% | 3018 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 54,143 psi | 90% | 2969 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,343 psi | 85% | 2956 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 62% | 1873 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,737 psi | 89% | 2890 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 50,792 psi | 84% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,982 psi | 88% | 2953 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 51,242 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,224 psi | 78% | 2989 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 54,085 psi | 90% | 2887 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,098 psi | 87% | 2887 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 94% | 52,692 psi | 88% | 2949 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 86% | 53,026 psi | 88% | 2877 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 51,532 psi | 86% | 2848 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 88% | 53,011 psi | 88% | 2894 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,895 psi | 86% | 2890 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,358 psi | 85% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,230 psi | 90% | 2851 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,257 psi | 87% | 2946 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 53,737 psi | 89% | 2881 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,737 psi | 89% | 2884 fps | 96.9% |
| Somchem S365 | <<locked>> | 90% | 51,430 psi | 85% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,432 psi | 89% | 2927 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 84% | 51,779 psi | 86% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,751 psi | 89% | 2907 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 52,852 psi | 88% | 2904 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 88% | 52,997 psi | 88% | 2913 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,360 psi | 90% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 54,389 psi | 90% | 3045 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,096 psi | 83% | 2953 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,301 psi | 89% | 2871 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 51,634 psi | 86% | 2927 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,576 psi | 86% | 3084 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,330 psi | 89% | 2920 fps | 98.6% |
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>> | 82% | 31,894 psi | 53% | 2490 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 40,408 psi | 67% | 2700 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 49,545 psi | 82% | 2959 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 48,849 psi | 81% | 2792 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,957 psi | 65% | 2684 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 45,107 psi | 75% | 2844 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 35,737 psi | 59% | 2680 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,661 psi | 83% | 2818 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,986 psi | 65% | 2710 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,556 psi | 74% | 2835 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,783 psi | 64% | 2677 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,175 psi | 65% | 2730 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,747 psi | 48% | 2464 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,647 psi | 51% | 2533 fps | 95.4% |
| Alliant Reloder-26 | 57.2 gr | 80% | 30,922 psi | 51% | 2582 fps | 96.6% |
| Bofors RP15 | <<locked>> | 90% | 38,653 psi | 64% | 2717 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,372 psi | 84% | 2835 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,089 psi | 68% | 2805 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 39,175 psi | 65% | 2730 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 43,932 psi | 73% | 2710 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 41,539 psi | 69% | 2759 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 50,633 psi | 84% | 2851 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,264 psi | 70% | 2749 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 45,063 psi | 75% | 2769 fps | 97.3% |
| Hodgdon H4831 | <<locked>> | 92% | 48,283 psi | 80% | 2851 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,340 psi | 79% | 2831 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,695 psi | 61% | 2598 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,522 psi | 64% | 2792 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 41,263 psi | 69% | 2762 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 45% | 1637 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,552 psi | 66% | 2638 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,440 psi | 75% | 2740 fps | 98.3% |
| IMR 4831 | <<locked>> | 80% | 38,769 psi | 64% | 2651 fps | 99.1% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,036 psi | 78% | 2792 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 92% | 43,149 psi | 72% | 2815 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 42,830 psi | 71% | 2687 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 41,147 psi | 68% | 2671 fps | 97.7% |
| Lovex S071 | <<locked>> | 86% | 31,241 psi | 52% | 2470 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 39,073 psi | 65% | 2664 fps | 95% |
| Norma MRP | 58.3 gr | 84% | 35,752 psi | 59% | 2680 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 39,929 psi | 66% | 2690 fps | 99.2% |
| Ramshot Grand | <<locked>> | 92% | 42,989 psi | 71% | 2825 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 38,754 psi | 64% | 2680 fps | 97.7% |
| Ramshot Magnum | <<locked>> | 92% | 38,319 psi | 64% | 2700 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,036 psi | 47% | 1677 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,285 psi | 84% | 2831 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,282 psi | 79% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,103 psi | 67% | 2720 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,812 psi | 64% | 2730 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,476 psi | 59% | 2707 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 47,355 psi | 79% | 2782 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,105 psi | 72% | 2720 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 40,567 psi | 67% | 2720 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 80% | 43,932 psi | 73% | 2710 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,830 psi | 71% | 2687 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 80% | 41,147 psi | 68% | 2671 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,515 psi | 81% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,225 psi | 80% | 2671 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,959 psi | 70% | 2631 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,205 psi | 67% | 2717 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 47,413 psi | 79% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,920 psi | 78% | 2766 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 36,535 psi | 61% | 2651 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,013 psi | 60% | 2585 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 45,368 psi | 75% | 2703 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,365 psi | 69% | 2690 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 37,884 psi | 63% | 2621 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 40,901 psi | 68% | 2694 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 32,111 psi | 53% | 2546 fps | 97.9% |
| Vihtavuori N560 | 62.5 gr | 90% | 44,411 psi | 74% | 2854 fps | 95% |
| Vihtavuori N565 | <<locked>> | 96% | 43,743 psi | 73% | 2831 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,306 psi | 67% | 2654 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,264 psi | 70% | 2749 fps | 97.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,454 psi | 42% | 2448 fps | 97.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,509 psi | 67% | 2684 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 80 powders for 7 x 75 R SE v. Hofe loaded with the .284 | 150gr | Swift Scirocco. Winchester StaBALL HD delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,831 fps to 3,084 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:9.5 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 x 75 R SE v. Hofe with the .284 | 150gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 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.