Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 145gr | Speer Grand Slam 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, Ramshot Grand and Winchester StaBALL HD.
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% | 53,243 psi | 88% | 2969 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 51,314 psi | 85% | 2956 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 51,692 psi | 86% | 3051 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 82% | 53,330 psi | 89% | 2927 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 52,257 psi | 87% | 3005 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 96% | 53,548 psi | 89% | 3061 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,552 psi | 66% | 2828 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 52,199 psi | 87% | 3015 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,214 psi | 88% | 3035 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 51,764 psi | 86% | 2992 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,156 psi | 88% | 3058 fps | 98.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,853 psi | 89% | 3038 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,937 psi | 83% | 3035 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,172 psi | 90% | 3130 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,127 psi | 87% | 3038 fps | 98.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,672 psi | 76% | 2953 fps | 96.6% |
| Bofors RP5 | <<locked>> | 96% | 53,156 psi | 88% | 3058 fps | 98.7% |
| Bofors RP7 | <<locked>> | 84% | 51,155 psi | 85% | 2904 fps | 98.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,110 psi | 82% | 2972 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 53,258 psi | 88% | 3012 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 84% | 52,591 psi | 87% | 2966 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 94% | 53,621 psi | 89% | 3002 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 94% | 52,359 psi | 87% | 2979 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 52,663 psi | 87% | 2943 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,747 psi | 81% | 3084 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 53,403 psi | 89% | 3045 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,840 psi | 61% | 1886 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 52,446 psi | 87% | 2943 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 84% | 52,649 psi | 87% | 2933 fps | 99.3% |
| IMR 4831 | <<locked>> | 88% | 51,866 psi | 86% | 2949 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 51,677 psi | 86% | 2933 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 96% | 51,111 psi | 85% | 3028 fps | 97.2% |
| Lovex S065 | <<locked>> | 86% | 53,055 psi | 88% | 2930 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,346 psi | 90% | 2976 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,720 psi | 84% | 2930 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 52,982 psi | 88% | 2992 fps | 98.4% |
| Norma MRP | <<locked>> | 94% | 52,736 psi | 88% | 3081 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 53,447 psi | 89% | 2995 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 51,532 psi | 86% | 3048 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 88% | 52,315 psi | 87% | 2995 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,403 psi | 89% | 3045 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,463 psi | 62% | 1929 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 52,504 psi | 87% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 51,300 psi | 85% | 2979 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,055 psi | 88% | 3064 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,197 psi | 82% | 3081 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 82% | 52,156 psi | 87% | 2917 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,693 psi | 89% | 2972 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 92% | 51,053 psi | 85% | 2979 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 84% | 51,155 psi | 85% | 2904 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,055 psi | 88% | 2930 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 54,346 psi | 90% | 2976 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,476 psi | 89% | 2972 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 52,620 psi | 87% | 2795 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 52,286 psi | 87% | 2877 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,114 psi | 90% | 3031 fps | 98.8% |
| Somchem S355 | <<locked>> | 82% | 51,880 psi | 86% | 2907 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 51,663 psi | 86% | 2904 fps | 96.5% |
| Somchem S365 | <<locked>> | 90% | 53,505 psi | 89% | 3002 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 51,692 psi | 86% | 2953 fps | 99% |
| Vihtavuori N150 | <<locked>> | 84% | 53,171 psi | 88% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,938 psi | 86% | 2936 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 51,082 psi | 85% | 2930 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 86% | 51,155 psi | 85% | 2940 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 52,750 psi | 88% | 3012 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 52,765 psi | 88% | 3071 fps | 97.1% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,359 psi | 87% | 3045 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 51,314 psi | 85% | 2894 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,534 psi | 89% | 3015 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,288 psi | 90% | 3173 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 51,430 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>> | 80% | 30,951 psi | 51% | 2507 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 41,800 psi | 69% | 2782 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 48,153 psi | 80% | 2986 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 50,038 psi | 83% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 40,089 psi | 67% | 2759 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 90% | 43,656 psi | 73% | 2867 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 34,853 psi | 58% | 2703 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,132 psi | 67% | 2789 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,006 psi | 76% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,958 psi | 66% | 2756 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,553 psi | 67% | 2812 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,791 psi | 49% | 2539 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,705 psi | 53% | 2612 fps | 95.9% |
| Alliant Reloder-26 | 60.4 gr | 80% | 32,097 psi | 53% | 2664 fps | 97% |
| Bofors RP15 | <<locked>> | 90% | 40,016 psi | 66% | 2795 fps | 95.4% |
| Bofors RP30 | <<locked>> | 98% | 42,670 psi | 71% | 2890 fps | 95.7% |
| Bofors RP5 | <<locked>> | 88% | 40,553 psi | 67% | 2812 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 45,237 psi | 75% | 2792 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 42,917 psi | 71% | 2844 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 43,656 psi | 73% | 2831 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 80% | 46,282 psi | 77% | 2848 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 46,717 psi | 78% | 2874 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,818 psi | 76% | 2858 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,898 psi | 63% | 2674 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,579 psi | 62% | 2815 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 42,656 psi | 71% | 2844 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,441 psi | 46% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,698 psi | 68% | 2717 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,441 psi | 77% | 2818 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 39,885 psi | 66% | 2726 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,542 psi | 76% | 2815 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 44,730 psi | 74% | 2904 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 44,121 psi | 73% | 2769 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 42,395 psi | 70% | 2753 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 32,343 psi | 54% | 2543 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 40,335 psi | 67% | 2743 fps | 95.3% |
| Norma MRP | <<locked>> | 82% | 34,548 psi | 57% | 2694 fps | 95% |
| Norma URP | <<locked>> | 80% | 41,278 psi | 69% | 2772 fps | 99.3% |
| Ramshot Grand | 66.9 gr | 92% | 44,672 psi | 74% | 2913 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 40,001 psi | 66% | 2759 fps | 98% |
| Ramshot Magnum | <<locked>> | 90% | 36,985 psi | 61% | 2717 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,079 psi | 47% | 1726 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,820 psi | 81% | 2963 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,655 psi | 69% | 2799 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,132 psi | 67% | 2812 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,854 psi | 61% | 2792 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 48,820 psi | 81% | 2861 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,411 psi | 74% | 2802 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 39,247 psi | 65% | 2740 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 45,237 psi | 75% | 2792 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,121 psi | 73% | 2769 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 42,395 psi | 70% | 2753 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,980 psi | 83% | 2917 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,284 psi | 82% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,091 psi | 72% | 2710 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,899 psi | 65% | 2736 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 48,863 psi | 81% | 2858 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,356 psi | 80% | 2844 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 37,942 psi | 63% | 2726 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,202 psi | 62% | 2661 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 46,702 psi | 78% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,641 psi | 71% | 2769 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 36,709 psi | 61% | 2644 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 42,047 psi | 70% | 2769 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 33,272 psi | 55% | 2618 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 90% | 46,021 psi | 76% | 2943 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 96% | 45,600 psi | 76% | 2917 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,727 psi | 69% | 2733 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,656 psi | 73% | 2831 fps | 98.1% |
| Winchester StaBALL HD | 58 gr | 80% | 26,324 psi | 44% | 2523 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,044 psi | 65% | 2703 fps | 95.1% |
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 | 145gr | Speer Grand Slam. Winchester StaBALL HD delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,173 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 58–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.284" calls for a 1:13.0 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. Alliant Reloder-26, Ramshot Grand, Winchester StaBALL HD rank at the top here: for 7 x 75 R SE v. Hofe with the .284 | 145gr | Speer Grand Slam 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.