Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 156gr | Lapua Naturalis 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% | 52,011 psi | 86% | 2844 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 53,635 psi | 89% | 2884 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 53,635 psi | 89% | 2982 fps | 97.1% |
| ADI AR 2209 | <<locked>> | 92% | 53,911 psi | 90% | 2927 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 94% | 51,547 psi | 86% | 2923 fps | 97.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,267 psi | 77% | 2815 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,307 psi | 69% | 2779 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,853 psi | 89% | 2933 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 51,329 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 53,490 psi | 89% | 2917 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 51,387 psi | 85% | 2927 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 52,475 psi | 87% | 2910 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,663 psi | 86% | 2959 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 52,243 psi | 87% | 2992 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,925 psi | 90% | 2966 fps | 99% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,572 psi | 79% | 2890 fps | 97.5% |
| Bofors RP5 | <<locked>> | 94% | 51,387 psi | 85% | 2927 fps | 98.8% |
| Bofors RP7 | <<locked>> | 84% | 52,852 psi | 88% | 2822 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,850 psi | 84% | 2904 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 51,517 psi | 86% | 2871 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 84% | 54,346 psi | 90% | 2887 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 92% | 51,750 psi | 86% | 2864 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,070 psi | 90% | 2904 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,360 psi | 90% | 2858 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,575 psi | 84% | 3018 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 84% | 51,126 psi | 85% | 2904 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,086 psi | 62% | 1808 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,954 psi | 90% | 2861 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,128 psi | 90% | 2848 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 53,766 psi | 89% | 2871 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,200 psi | 88% | 2854 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 96% | 52,721 psi | 88% | 2956 fps | 98% |
| Lovex S065 | <<locked>> | 84% | 51,576 psi | 86% | 2799 fps | 99.9% |
| Lovex S070 | <<locked>> | 86% | 53,084 psi | 88% | 2844 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,055 psi | 88% | 2861 fps | 99.9% |
| Norma 204 | <<locked>> | 86% | 51,256 psi | 85% | 2858 fps | 98.4% |
| Norma 217ᴾ | <<locked>> | 100% | 36,970 psi | 61% | 2703 fps | 96.4% |
| Norma MRP | <<locked>> | 92% | 51,053 psi | 85% | 2949 fps | 99.5% |
| Norma URP | <<locked>> | 86% | 52,098 psi | 87% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 53,272 psi | 89% | 2976 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 53,998 psi | 90% | 2917 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 51,416 psi | 85% | 2913 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,826 psi | 63% | 1847 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,331 psi | 90% | 2936 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 53,171 psi | 88% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 51,126 psi | 85% | 2923 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,937 psi | 85% | 3015 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 54,070 psi | 90% | 2831 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 51,953 psi | 86% | 2841 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 92% | 52,881 psi | 88% | 2904 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 84% | 52,852 psi | 88% | 2822 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 51,576 psi | 86% | 2799 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 53,084 psi | 88% | 2844 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,940 psi | 90% | 2703 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 54,128 psi | 90% | 2802 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 52,431 psi | 87% | 2897 fps | 98.9% |
| Somchem S355 | <<locked>> | 82% | 53,766 psi | 89% | 2825 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 53,447 psi | 89% | 2835 fps | 97.3% |
| Somchem S365 | <<locked>> | 88% | 51,938 psi | 86% | 2867 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 53,751 psi | 89% | 2881 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 82% | 51,474 psi | 86% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,766 psi | 89% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,982 psi | 88% | 2858 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 86% | 52,924 psi | 88% | 2861 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 51,692 psi | 86% | 2887 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,418 psi | 90% | 2995 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 54,172 psi | 90% | 2972 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,765 psi | 88% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 51,808 psi | 86% | 2877 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 52,301 psi | 87% | 3035 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 53,359 psi | 89% | 2874 fps | 98.8% |
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% | 33,170 psi | 55% | 2470 fps | 96.5% |
| Accurate 4350 | <<locked>> | 80% | 44,063 psi | 73% | 2720 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 90% | 46,630 psi | 77% | 2854 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 82% | 39,059 psi | 65% | 2638 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 88% | 42,525 psi | 71% | 2746 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 98% | 43,439 psi | 72% | 2753 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 94% | 34,418 psi | 57% | 2602 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,843 psi | 70% | 2720 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,921 psi | 80% | 2841 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,015 psi | 65% | 2638 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 37,246 psi | 62% | 2638 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,517 psi | 52% | 2497 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 29,501 psi | 49% | 2454 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,098 psi | 57% | 2625 fps | 98.3% |
| Bofors RP15 | <<locked>> | 88% | 39,320 psi | 65% | 2687 fps | 95.8% |
| Bofors RP30 | <<locked>> | 94% | 39,233 psi | 65% | 2717 fps | 95% |
| Bofors RP5 | <<locked>> | 84% | 37,246 psi | 62% | 2638 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 46,847 psi | 78% | 2717 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 41,640 psi | 69% | 2720 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 45,353 psi | 75% | 2762 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,950 psi | 80% | 2776 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 45,194 psi | 75% | 2746 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,527 psi | 74% | 2733 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,581 psi | 66% | 2608 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,941 psi | 61% | 2703 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 44,425 psi | 74% | 2782 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,833 psi | 46% | 1614 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,264 psi | 70% | 2648 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,863 psi | 80% | 2740 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 41,814 psi | 69% | 2664 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 44,295 psi | 74% | 2690 fps | 95.3% |
| IMR 7828 SSC | 60.3 gr | 90% | 43,439 psi | 72% | 2776 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 45,803 psi | 76% | 2697 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 44,193 psi | 73% | 2684 fps | 98.6% |
| Lovex S071 | <<locked>> | 82% | 30,545 psi | 51% | 2402 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 41,930 psi | 70% | 2680 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 34,780 psi | 58% | 2648 fps | 95.5% |
| Norma MRP | 55.7 gr | 80% | 34,026 psi | 57% | 2585 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 43,018 psi | 71% | 2703 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 40,538 psi | 67% | 2726 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 41,713 psi | 69% | 2694 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 36,289 psi | 60% | 2608 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,369 psi | 47% | 1654 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,691 psi | 84% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,526 psi | 72% | 2736 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,785 psi | 69% | 2749 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,881 psi | 56% | 2618 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 50,850 psi | 84% | 2782 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 43,207 psi | 72% | 2677 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 38,392 psi | 64% | 2625 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 46,847 psi | 78% | 2717 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,803 psi | 76% | 2697 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 44,193 psi | 73% | 2684 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,981 psi | 85% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,889 psi | 75% | 2641 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 38,043 psi | 63% | 2618 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 50,618 psi | 84% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 44,019 psi | 73% | 2664 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 39,900 psi | 66% | 2664 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,782 psi | 61% | 2556 fps | 96% |
| Vihtavuori N150 | <<locked>> | 80% | 48,428 psi | 80% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,454 psi | 74% | 2700 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,998 psi | 60% | 2533 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 43,801 psi | 73% | 2703 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 35,331 psi | 59% | 2572 fps | 99.1% |
| Vihtavuori N560 | <<locked>> | 88% | 44,672 psi | 74% | 2815 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 92% | 41,814 psi | 69% | 2743 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,163 psi | 72% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 45,353 psi | 75% | 2762 fps | 98.7% |
| Winchester StaBALL HD | 55.1 gr | 80% | 28,166 psi | 47% | 2507 fps | 99.2% |
| Winchester Supreme 780 | <<locked>> | 84% | 38,058 psi | 63% | 2585 fps | 95.3% |
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 | 156gr | Lapua Naturalis. Winchester StaBALL HD delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,035 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 61–90 %, leaving at least 10 % headroom. The 155.0 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, 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 | 156gr | Lapua Naturalis they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, IMR 8133 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.