Load Specifications
Load data in caliber 7 x 66 SE v. Hofe with .284 | 120gr | Nosler Ballistic Tip Hunting bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Alliant Reloder-26.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 56,014 psi | 88% | 3258 fps | 98.8% |
| Accurate 3100 | <<locked>> | 98% | 55,811 psi | 87% | 3314 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 55,753 psi | 87% | 3248 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 57,203 psi | 90% | 3366 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 57,174 psi | 90% | 3474 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 84% | 55,579 psi | 87% | 3284 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,491 psi | 85% | 3353 fps | 98% |
| ADI AR 2213 | <<locked>> | 98% | 56,014 psi | 88% | 3409 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,463 psi | 88% | 3307 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,565 psi | 89% | 3333 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,259 psi | 85% | 3373 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,550 psi | 87% | 3392 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 57,711 psi | 90% | 3402 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,448 psi | 87% | 3409 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,144 psi | 88% | 3386 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,660 psi | 76% | 3310 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 57,029 psi | 89% | 3488 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,375 psi | 85% | 3383 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 57,595 psi | 90% | 3327 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 55,448 psi | 87% | 3409 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 56,782 psi | 89% | 3310 fps | 99% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,124 psi | 75% | 3238 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 82% | 54,070 psi | 85% | 3281 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 55,564 psi | 87% | 3363 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 54,795 psi | 86% | 3317 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 96% | 56,086 psi | 88% | 3343 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,882 psi | 86% | 3323 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,520 psi | 85% | 3284 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,688 psi | 75% | 3353 fps | 97.6% |
| Hodgdon Superformance | <<locked>> | 88% | 56,057 psi | 88% | 3399 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,579 psi | 57% | 2129 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,781 psi | 86% | 3264 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,377 psi | 90% | 3304 fps | 99.4% |
| IMR 4350 | <<locked>> | 90% | 54,636 psi | 86% | 3287 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,868 psi | 86% | 3281 fps | 99% |
| IMR 4831 | <<locked>> | 92% | 57,508 psi | 90% | 3356 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 57,450 psi | 90% | 3333 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 57,377 psi | 90% | 3448 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 55,259 psi | 87% | 3258 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,056 psi | 86% | 3278 fps | 99.7% |
| Lovex S070 | <<locked>> | 90% | 56,753 psi | 89% | 3327 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,385 psi | 77% | 3199 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 55,883 psi | 88% | 3317 fps | 100% |
| Norma 204 | <<locked>> | 90% | 55,579 psi | 87% | 3346 fps | 98% |
| Norma MRP | <<locked>> | 96% | 55,288 psi | 87% | 3435 fps | 99.3% |
| Norma URP | <<locked>> | 90% | 55,782 psi | 87% | 3350 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,927 psi | 89% | 3343 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,925 psi | 85% | 3396 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 90% | 54,781 psi | 86% | 3350 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,272 psi | 82% | 3323 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,260 psi | 58% | 2175 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,696 psi | 90% | 3327 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,795 psi | 86% | 3383 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,290 psi | 90% | 3392 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,767 psi | 87% | 3422 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,037 psi | 75% | 3346 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 82% | 57,029 psi | 89% | 3271 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 57,682 psi | 90% | 3323 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,883 psi | 88% | 3320 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 96% | 56,985 psi | 89% | 3386 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 56,782 psi | 89% | 3310 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,056 psi | 86% | 3278 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 55,259 psi | 87% | 3258 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,753 psi | 89% | 3327 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,796 psi | 87% | 3330 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,592 psi | 86% | 3136 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,665 psi | 86% | 3222 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,507 psi | 89% | 3383 fps | 98.5% |
| Somchem S355 | <<locked>> | 86% | 57,479 psi | 90% | 3317 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,360 psi | 85% | 3245 fps | 96.1% |
| Somchem S365 | <<locked>> | 92% | 55,535 psi | 87% | 3353 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 57,653 psi | 90% | 3360 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 57,537 psi | 90% | 3225 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,682 psi | 90% | 3238 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 55,187 psi | 86% | 3228 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 57,682 psi | 90% | 3343 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 57,058 psi | 89% | 3327 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 82% | 55,941 psi | 88% | 3232 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 57,014 psi | 89% | 3346 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,940 psi | 86% | 3360 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,274 psi | 87% | 3422 fps | 96.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,024 psi | 80% | 3314 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 57,595 psi | 90% | 3297 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,564 psi | 87% | 3363 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,649 psi | 83% | 3465 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,998 psi | 85% | 3287 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% | 52,504 psi | 82% | 3196 fps | 98.2% |
| Accurate 3100 | <<locked>> | 84% | 34,330 psi | 54% | 2861 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 52,388 psi | 82% | 3196 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,379 psi | 63% | 3041 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 49,603 psi | 78% | 3330 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 48,965 psi | 77% | 3166 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 44,585 psi | 70% | 3150 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 94% | 48,820 psi | 77% | 3268 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,748 psi | 78% | 3192 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,968 psi | 83% | 3271 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,972 psi | 61% | 3054 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,643 psi | 70% | 3196 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 44,411 psi | 70% | 3143 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 90% | 42,105 psi | 66% | 3133 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,819 psi | 45% | 2766 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 35,070 psi | 55% | 2972 fps | 96.1% |
| Alliant Reloder-26 | 69.6 gr | 82% | 33,475 psi | 52% | 2966 fps | 96.2% |
| Bofors RP15 | <<locked>> | 94% | 44,469 psi | 70% | 3182 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 50,357 psi | 79% | 3205 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 42,105 psi | 66% | 3133 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 44,019 psi | 69% | 3061 fps | 96.6% |
| Hodgdon H1000 | <<locked>> | 98% | 44,875 psi | 70% | 3166 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 50,604 psi | 79% | 3219 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 42,322 psi | 66% | 3094 fps | 96.7% |
| Hodgdon H4350 | <<locked>> | 80% | 45,020 psi | 71% | 3120 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 94% | 52,359 psi | 82% | 3278 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,242 psi | 80% | 3255 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,608 psi | 57% | 2930 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 96% | 41,698 psi | 65% | 3202 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 41,452 psi | 65% | 3104 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 43% | 1909 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,459 psi | 81% | 3205 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,780 psi | 84% | 3241 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 39,566 psi | 62% | 2972 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,411 psi | 71% | 3094 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 38,667 psi | 61% | 2986 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,459 psi | 79% | 3205 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 49,937 psi | 78% | 3304 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 51,750 psi | 81% | 3199 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,975 psi | 67% | 3038 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 41,263 psi | 65% | 3015 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 35,723 psi | 56% | 2897 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 52,344 psi | 82% | 3255 fps | 100% |
| Norma 204 | <<locked>> | 84% | 45,136 psi | 71% | 3140 fps | 95.6% |
| Norma MRP | 70.8 gr | 86% | 38,508 psi | 60% | 3071 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 40,059 psi | 63% | 3038 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 53,330 psi | 84% | 3281 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 46,702 psi | 73% | 3245 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 38,899 psi | 61% | 3015 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 94% | 41,684 psi | 65% | 3100 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 44% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,560 psi | 79% | 3202 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,398 psi | 74% | 3255 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,408 psi | 63% | 3061 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,986 psi | 61% | 3068 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 38,624 psi | 61% | 3107 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 53,650 psi | 84% | 3215 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,543 psi | 75% | 3150 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 49,139 psi | 77% | 3192 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 88% | 43,439 psi | 68% | 3120 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,019 psi | 69% | 3061 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,975 psi | 67% | 3038 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 51,750 psi | 81% | 3199 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,263 psi | 65% | 3015 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,689 psi | 76% | 3202 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,182 psi | 76% | 3035 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,090 psi | 66% | 2972 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 43,047 psi | 67% | 3114 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 47,572 psi | 75% | 3143 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 50,734 psi | 80% | 3176 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 36,550 psi | 57% | 2986 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 41,292 psi | 65% | 3038 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 53,983 psi | 85% | 3173 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 54,273 psi | 85% | 3186 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,527 psi | 71% | 3061 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,336 psi | 65% | 3031 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 90% | 40,756 psi | 64% | 3009 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 52,460 psi | 82% | 3176 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,886 psi | 64% | 3031 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 32,010 psi | 50% | 2854 fps | 96.6% |
| Vihtavuori N560 | 77.4 gr | 94% | 51,459 psi | 81% | 3346 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 98% | 47,645 psi | 75% | 3245 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,524 psi | 64% | 2992 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 42,496 psi | 67% | 3100 fps | 96.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,527 psi | 40% | 2723 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 90% | 43,787 psi | 69% | 3084 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 94 powders for 7 x 66 SE v. Hofe loaded with the .284 | 120gr | Nosler Ballistic Tip Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 3,488 fps; across all powders the maximum-charge window runs from 2,129 fps to 3,488 fps. ADI AR 2217 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 120.0 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-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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for 7 x 66 SE v. Hofe with the .284 | 120gr | Nosler Ballistic Tip Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, 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.