Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 145gr | Speer Boat-Tail bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Alliant Reloder-26 and Ramshot Grand.
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% | 53,055 psi | 88% | 2966 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 51,140 psi | 85% | 2953 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 51,547 psi | 86% | 3051 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 82% | 53,113 psi | 88% | 2923 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,083 psi | 87% | 3005 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 96% | 53,403 psi | 89% | 3061 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,407 psi | 65% | 2828 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,273 psi | 90% | 2949 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 51,982 psi | 86% | 3015 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,997 psi | 88% | 3031 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,561 psi | 86% | 2989 fps | 98.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 52,997 psi | 88% | 3058 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,679 psi | 89% | 3035 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,545 psi | 82% | 3028 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,983 psi | 90% | 3127 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 51,938 psi | 86% | 3038 fps | 98.4% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,484 psi | 76% | 2949 fps | 96.5% |
| Bofors RP5 | <<locked>> | 96% | 52,997 psi | 88% | 3058 fps | 98.7% |
| Bofors RP7 | <<locked>> | 86% | 54,317 psi | 90% | 2956 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,008 psi | 81% | 2969 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 53,098 psi | 88% | 3009 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 84% | 52,620 psi | 87% | 2966 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 53,476 psi | 89% | 2999 fps | 96.9% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,185 psi | 87% | 2976 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,446 psi | 87% | 2940 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,588 psi | 81% | 3081 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 53,243 psi | 88% | 3041 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,767 psi | 61% | 1883 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,272 psi | 87% | 2940 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,475 psi | 87% | 2927 fps | 99.3% |
| IMR 4831 | <<locked>> | 88% | 51,663 psi | 86% | 2949 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 51,532 psi | 86% | 2930 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 96% | 50,966 psi | 85% | 3028 fps | 97.2% |
| Lovex S065 | <<locked>> | 86% | 52,910 psi | 88% | 2930 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,433 psi | 90% | 2976 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,560 psi | 84% | 2927 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 52,808 psi | 88% | 2989 fps | 98.3% |
| Norma MRP | <<locked>> | 94% | 52,518 psi | 87% | 3077 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 53,519 psi | 89% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,387 psi | 85% | 3048 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 88% | 52,127 psi | 87% | 2992 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,272 psi | 89% | 3045 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 62% | 1929 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,330 psi | 87% | 3018 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 51,097 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,881 psi | 88% | 3061 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,052 psi | 81% | 3081 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 82% | 51,909 psi | 86% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,519 psi | 89% | 2972 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 94% | 54,389 psi | 90% | 3035 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 54,317 psi | 90% | 2956 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,910 psi | 88% | 2930 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 54,433 psi | 90% | 2976 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,316 psi | 89% | 2969 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,388 psi | 87% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,373 psi | 87% | 2881 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,940 psi | 90% | 3031 fps | 98.8% |
| Somchem S355 | <<locked>> | 82% | 51,909 psi | 86% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,532 psi | 86% | 2904 fps | 96.5% |
| Somchem S365 | <<locked>> | 90% | 53,287 psi | 89% | 2999 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 51,532 psi | 86% | 2953 fps | 99% |
| Vihtavuori N150 | <<locked>> | 84% | 53,011 psi | 88% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,735 psi | 86% | 2933 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,389 psi | 90% | 2986 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 50,966 psi | 85% | 2936 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,547 psi | 87% | 3009 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,605 psi | 87% | 3068 fps | 97.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,953 psi | 86% | 3038 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 51,140 psi | 85% | 2894 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,330 psi | 89% | 3012 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,027 psi | 90% | 3169 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 51,285 psi | 85% | 2943 fps | 98.2% |
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% | 32,982 psi | 55% | 2562 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 41,611 psi | 69% | 2779 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 48,008 psi | 80% | 2982 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 50,053 psi | 83% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,958 psi | 66% | 2759 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 92% | 46,499 psi | 77% | 2930 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 96% | 34,708 psi | 58% | 2700 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,952 psi | 85% | 2897 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,132 psi | 67% | 2789 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,035 psi | 76% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,769 psi | 66% | 2753 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,393 psi | 67% | 2808 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,660 psi | 49% | 2536 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,560 psi | 52% | 2608 fps | 95.8% |
| Alliant Reloder-26 | 60.2 gr | 80% | 31,952 psi | 53% | 2657 fps | 96.9% |
| Bofors RP15 | <<locked>> | 90% | 39,842 psi | 66% | 2795 fps | 95.4% |
| Bofors RP30 | <<locked>> | 98% | 42,540 psi | 71% | 2887 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 40,393 psi | 67% | 2808 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 45,034 psi | 75% | 2789 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 42,801 psi | 71% | 2841 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 43,468 psi | 72% | 2828 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 46,093 psi | 77% | 2844 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 46,557 psi | 77% | 2874 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,658 psi | 76% | 2854 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,695 psi | 63% | 2671 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,449 psi | 62% | 2812 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 42,482 psi | 71% | 2841 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 46% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,524 psi | 67% | 2713 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,485 psi | 77% | 2818 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 39,914 psi | 66% | 2726 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,426 psi | 75% | 2815 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 44,570 psi | 74% | 2900 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 43,961 psi | 73% | 2766 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 42,206 psi | 70% | 2749 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 32,198 psi | 53% | 2539 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 40,147 psi | 67% | 2740 fps | 95.2% |
| Norma MRP | <<locked>> | 82% | 34,389 psi | 57% | 2690 fps | 95% |
| Norma URP | <<locked>> | 80% | 41,060 psi | 68% | 2769 fps | 99.3% |
| Ramshot Grand | 66.7 gr | 92% | 44,527 psi | 74% | 2910 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 39,856 psi | 66% | 2756 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 36,825 psi | 61% | 2713 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,992 psi | 47% | 1722 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,849 psi | 81% | 2966 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,466 psi | 69% | 2795 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,958 psi | 66% | 2808 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,753 psi | 61% | 2792 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 48,602 psi | 81% | 2858 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,237 psi | 73% | 2799 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 84% | 39,059 psi | 65% | 2736 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 45,034 psi | 75% | 2789 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,961 psi | 73% | 2766 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 42,206 psi | 70% | 2749 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,763 psi | 83% | 2913 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,313 psi | 82% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,931 psi | 71% | 2707 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,711 psi | 64% | 2733 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 48,646 psi | 81% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,211 psi | 80% | 2841 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 37,739 psi | 63% | 2723 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,043 psi | 62% | 2657 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,528 psi | 77% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,467 psi | 71% | 2766 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 36,564 psi | 61% | 2641 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 41,858 psi | 70% | 2766 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 33,098 psi | 55% | 2615 fps | 98.1% |
| Vihtavuori N560 | 65.8 gr | 90% | 45,876 psi | 76% | 2940 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 45,440 psi | 75% | 2917 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,568 psi | 69% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,468 psi | 72% | 2828 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,223 psi | 44% | 2520 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,885 psi | 65% | 2700 fps | 95% |
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 78 powders for 7 x 75 R SE v. Hofe loaded with the .284 | 145gr | Speer Boat-Tail. Winchester StaBALL HD delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,169 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:12.0 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. Vihtavuori N560, Alliant Reloder-26, Ramshot Grand rank at the top here: for 7 x 75 R SE v. Hofe with the .284 | 145gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, Norma 217 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.