Load Specifications
Load data in caliber 7 x 75 R SE v. Hofe with .284 | 140gr | Barnes MRX BT bullet and 78 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 Alliant Reloder-16.
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 2700 | <<locked>> | 82% | 54,346 psi | 90% | 2963 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 52,765 psi | 88% | 3009 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 53,461 psi | 89% | 2946 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 51,068 psi | 85% | 3005 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 53,853 psi | 89% | 2986 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,388 psi | 87% | 3051 fps | 98% |
| ADI AR 2213 | <<locked>> | 98% | 53,505 psi | 89% | 3104 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 51,271 psi | 85% | 2956 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,127 psi | 87% | 3068 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,243 psi | 88% | 3087 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 51,750 psi | 86% | 3038 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,721 psi | 88% | 3100 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,505 psi | 89% | 3084 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,224 psi | 77% | 3012 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,635 psi | 89% | 3173 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,663 psi | 86% | 3081 fps | 98% |
| Bofors RP3 | <<locked>> | 82% | 51,706 psi | 86% | 2966 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,721 psi | 88% | 3100 fps | 98.3% |
| Bofors RP7 | <<locked>> | 86% | 51,459 psi | 85% | 2953 fps | 98.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,948 psi | 76% | 2946 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 82% | 52,054 psi | 86% | 2982 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 53,447 psi | 89% | 3061 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 52,939 psi | 88% | 3018 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 96% | 53,824 psi | 89% | 3048 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,489 psi | 87% | 3025 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 52,562 psi | 87% | 2989 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,324 psi | 75% | 3051 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 88% | 53,592 psi | 89% | 3097 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 60% | 1906 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,084 psi | 88% | 2963 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 52,620 psi | 87% | 2992 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,214 psi | 88% | 2986 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 51,851 psi | 86% | 2999 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,909 psi | 86% | 2979 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 98% | 51,169 psi | 85% | 3074 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 53,417 psi | 89% | 2959 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,084 psi | 88% | 2979 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 51,169 psi | 85% | 2969 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,746 psi | 78% | 2907 fps | 99% |
| Norma 203B | <<locked>> | 82% | 54,027 psi | 90% | 3012 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,330 psi | 89% | 3045 fps | 98% |
| Norma MRP | <<locked>> | 96% | 52,359 psi | 87% | 3123 fps | 99.2% |
| Norma URP | <<locked>> | 90% | 53,592 psi | 89% | 3048 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 51,532 psi | 86% | 3091 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 90% | 52,446 psi | 87% | 3048 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,400 psi | 82% | 3022 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,086 psi | 62% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,156 psi | 87% | 2966 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,562 psi | 87% | 3077 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 51,111 psi | 85% | 3028 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,243 psi | 88% | 3114 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,455 psi | 76% | 3045 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 84% | 52,083 psi | 87% | 2966 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,925 psi | 90% | 3022 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 94% | 50,894 psi | 85% | 3022 fps | 98% |
| Rottweil R 907 | <<locked>> | 86% | 51,459 psi | 85% | 2953 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,084 psi | 88% | 2979 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 53,417 psi | 89% | 2959 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 51,169 psi | 85% | 2969 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,722 psi | 89% | 3028 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,910 psi | 88% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 52,692 psi | 88% | 2930 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,070 psi | 90% | 3081 fps | 98.5% |
| Somchem S355 | <<locked>> | 84% | 51,953 psi | 86% | 2959 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,025 psi | 86% | 2953 fps | 96.1% |
| Somchem S365 | <<locked>> | 92% | 53,098 psi | 88% | 3051 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 51,459 psi | 85% | 2999 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 86% | 53,214 psi | 88% | 2933 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,098 psi | 87% | 2986 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,010 psi | 85% | 2972 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 54,041 psi | 90% | 2936 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 51,213 psi | 85% | 2989 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 52,185 psi | 87% | 3054 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 52,620 psi | 87% | 3114 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 51,590 psi | 86% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,447 psi | 89% | 3061 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,110 psi | 82% | 3150 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 51,503 psi | 86% | 2989 fps | 97.9% |
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 2700 | <<locked>> | 80% | 50,720 psi | 84% | 2904 fps | 98.3% |
| Accurate 3100 | <<locked>> | 84% | 32,271 psi | 54% | 2589 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 50,024 psi | 83% | 2890 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,363 psi | 64% | 2756 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 47,456 psi | 79% | 2874 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,699 psi | 71% | 2861 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 94% | 46,659 psi | 78% | 2972 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,993 psi | 80% | 2897 fps | 100% |
| Alliant Reloder-16 | 54 gr | 80% | 37,521 psi | 62% | 2772 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,728 psi | 71% | 2904 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,554 psi | 71% | 2858 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,016 psi | 66% | 2844 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,253 psi | 45% | 2503 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,214 psi | 55% | 2697 fps | 96% |
| Alliant Reloder-26 | 61.1 gr | 82% | 31,531 psi | 52% | 2687 fps | 96.1% |
| Bofors RP15 | <<locked>> | 94% | 42,250 psi | 70% | 2894 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 48,298 psi | 80% | 2910 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,016 psi | 66% | 2844 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 42,380 psi | 70% | 2776 fps | 96.8% |
| Hodgdon H1000 | <<locked>> | 98% | 42,859 psi | 71% | 2881 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 48,689 psi | 81% | 2923 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,640 psi | 68% | 2812 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 43,439 psi | 72% | 2835 fps | 96.3% |
| Hodgdon H4831 | <<locked>> | 94% | 50,256 psi | 83% | 2986 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,994 psi | 81% | 2963 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,940 psi | 58% | 2654 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,624 psi | 66% | 2910 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 39,697 psi | 66% | 2822 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 45% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,922 psi | 83% | 2910 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,058 psi | 63% | 2700 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,034 psi | 73% | 2812 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 36,999 psi | 61% | 2710 fps | 98.4% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,660 psi | 81% | 2920 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 96% | 47,718 psi | 79% | 3009 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 50,053 psi | 83% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,263 psi | 69% | 2756 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 39,479 psi | 66% | 2733 fps | 96.7% |
| Lovex S071 | <<locked>> | 90% | 33,620 psi | 56% | 2621 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 50,589 psi | 84% | 2956 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,279 psi | 72% | 2854 fps | 95.7% |
| Norma MRP | 62.2 gr | 86% | 36,622 psi | 61% | 2792 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 38,247 psi | 64% | 2753 fps | 98.5% |
| Ramshot Grand | <<locked>> | 94% | 44,411 psi | 74% | 2949 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 37,115 psi | 62% | 2736 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 39,334 psi | 65% | 2815 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,586 psi | 46% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,863 psi | 81% | 2910 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,440 psi | 75% | 2959 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,421 psi | 64% | 2779 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,115 psi | 62% | 2782 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,477 psi | 61% | 2822 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 45,426 psi | 75% | 2851 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,413 psi | 79% | 2904 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 88% | 41,524 psi | 69% | 2835 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 42,380 psi | 70% | 2776 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,263 psi | 69% | 2756 fps | 98.2% |
| Shooters World Precision | <<locked>> | 80% | 50,053 psi | 83% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,479 psi | 66% | 2733 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,833 psi | 78% | 2910 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,702 psi | 78% | 2753 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,292 psi | 67% | 2694 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,147 psi | 68% | 2831 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 45,701 psi | 76% | 2851 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,559 psi | 81% | 2890 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 34,708 psi | 58% | 2707 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 39,320 psi | 65% | 2756 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 43,700 psi | 73% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,682 psi | 66% | 2753 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 38,957 psi | 65% | 2740 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 50,676 psi | 84% | 2884 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,073 psi | 65% | 2753 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,124 psi | 50% | 2582 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 49,139 psi | 82% | 3048 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,827 psi | 65% | 2720 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,640 psi | 68% | 2812 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,744 psi | 43% | 2536 fps | 96.5% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,698 psi | 69% | 2805 fps | 95.4% |
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 87 powders for 7 x 75 R SE v. Hofe loaded with the .284 | 140gr | Barnes MRX BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,906 fps to 3,173 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, Alliant Reloder-16 rank at the top here: for 7 x 75 R SE v. Hofe with the .284 | 140gr | Barnes MRX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.