Load Specifications
Bullet Manufacturer:Peregrine
Bullet Weight:160 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7 x 66 SE v. Hofe load data
Case Length (l3):2.598"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:93 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:11.0
Load data in caliber 7 x 66 SE v. Hofe with .284 | 160gr | Peregrine Bushmaster (VRG-3) bullet and 147 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 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.
A valid access license is required to use the Personalized Load Calculator.
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 3100 | <<locked>> | 92% | 54,186 psi | 85% | 2913 fps | 100% |
| Accurate 3100 | <<locked>> | 94% | 57,725 psi | 90% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,390 psi | 87% | 2943 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,158 psi | 86% | 2940 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 55,898 psi | 88% | 3071 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 57,101 psi | 89% | 3081 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 92% | 56,942 psi | 89% | 3077 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 90% | 56,492 psi | 89% | 3012 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 90% | 56,289 psi | 88% | 3005 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 54,360 psi | 85% | 3018 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 92% | 54,172 psi | 85% | 3015 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,185 psi | 82% | 2976 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,040 psi | 82% | 2976 fps | 99.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,760 psi | 73% | 2940 fps | 100% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,586 psi | 73% | 2936 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,710 psi | 89% | 3009 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,507 psi | 89% | 3002 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,695 psi | 89% | 3002 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,449 psi | 88% | 2999 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,711 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,479 psi | 90% | 3009 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,028 psi | 88% | 2999 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,840 psi | 88% | 2995 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,462 psi | 85% | 3012 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 54,273 psi | 85% | 3009 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,869 psi | 88% | 2979 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,666 psi | 87% | 2972 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,332 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,158 psi | 86% | 3041 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,463 psi | 88% | 3071 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,260 psi | 88% | 3068 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,883 psi | 88% | 2979 fps | 97.3% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,753 psi | 87% | 2976 fps | 97.3% |
| Bofors RP15 | <<locked>> | 96% | 57,290 psi | 90% | 3058 fps | 99.9% |
| Bofors RP15 | <<locked>> | 96% | 57,116 psi | 90% | 3051 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,085 psi | 86% | 3051 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,665 psi | 86% | 3045 fps | 99.6% |
| Bofors RP5 | <<locked>> | 92% | 54,462 psi | 85% | 3012 fps | 99.8% |
| Bofors RP5 | <<locked>> | 92% | 54,273 psi | 85% | 3009 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 57,464 psi | 90% | 2946 fps | 100% |
| Bofors RP7 | <<locked>> | 84% | 57,261 psi | 90% | 2940 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 53,954 psi | 85% | 3009 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,682 psi | 90% | 3064 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 84% | 57,246 psi | 90% | 3005 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 57,043 psi | 89% | 2999 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,883 psi | 88% | 2956 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 55,709 psi | 87% | 2953 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 90% | 54,114 psi | 85% | 2953 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 92% | 57,624 psi | 90% | 3009 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,768 psi | 89% | 2995 fps | 99.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,594 psi | 89% | 2992 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,666 psi | 89% | 2917 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,710 psi | 89% | 2917 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,186 psi | 85% | 3123 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 54,012 psi | 85% | 3120 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,867 psi | 84% | 2979 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 53,664 psi | 84% | 2976 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,246 psi | 58% | 1860 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,188 psi | 58% | 1857 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,651 psi | 87% | 2930 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,724 psi | 87% | 2933 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,434 psi | 87% | 2913 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,216 psi | 87% | 2910 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,840 psi | 88% | 2936 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,622 psi | 87% | 2930 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,027 psi | 86% | 2936 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,853 psi | 86% | 2933 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 94% | 56,217 psi | 88% | 3058 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 94% | 56,028 psi | 88% | 3054 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,134 psi | 66% | 2838 fps | 97.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,974 psi | 66% | 2831 fps | 97.4% |
| Lovex S065 | <<locked>> | 84% | 56,086 psi | 88% | 2910 fps | 100% |
| Lovex S065 | <<locked>> | 84% | 55,898 psi | 88% | 2907 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 54,346 psi | 85% | 2910 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 57,638 psi | 90% | 2956 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,434 psi | 87% | 2933 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,245 psi | 87% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,956 psi | 89% | 2995 fps | 99.8% |
| Norma 204 | <<locked>> | 86% | 56,768 psi | 89% | 2989 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 42,366 psi | 66% | 2864 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 42,206 psi | 66% | 2858 fps | 99.2% |
| Norma MRP | <<locked>> | 90% | 54,331 psi | 85% | 3031 fps | 100% |
| Norma MRP | <<locked>> | 90% | 54,143 psi | 85% | 3028 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,566 psi | 90% | 2979 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,334 psi | 90% | 2976 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,188 psi | 90% | 3081 fps | 99.7% |
| Ramshot Grand | <<locked>> | 94% | 56,739 psi | 89% | 3074 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 86% | 56,565 psi | 89% | 2992 fps | 100% |
| Ramshot Hunter | <<locked>> | 86% | 56,376 psi | 88% | 2986 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,463 psi | 87% | 3009 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,259 psi | 87% | 3005 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,087 psi | 60% | 1903 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,029 psi | 60% | 1903 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,637 psi | 87% | 2969 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,448 psi | 87% | 2963 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 54,070 psi | 85% | 2995 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,911 psi | 84% | 2992 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,839 psi | 86% | 3117 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 54,679 psi | 86% | 3114 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3071 fps | 98.7% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 3068 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 90% | 57,421 psi | 90% | 2979 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 90% | 57,290 psi | 90% | 2976 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 90% | 55,579 psi | 87% | 2989 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 90% | 55,405 psi | 87% | 2986 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 57,464 psi | 90% | 2946 fps | 100% |
| Rottweil R 907 | <<locked>> | 84% | 57,261 psi | 90% | 2940 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,086 psi | 88% | 2910 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,898 psi | 88% | 2907 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 54,346 psi | 85% | 2910 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 57,638 psi | 90% | 2956 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,129 psi | 86% | 2864 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,926 psi | 86% | 2858 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,158 psi | 86% | 2986 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,984 psi | 86% | 2979 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 55,143 psi | 86% | 2913 fps | 98.8% |
| Somchem S361 | <<locked>> | 88% | 54,984 psi | 86% | 2907 fps | 98.8% |
| Somchem S365 | <<locked>> | 86% | 54,447 psi | 85% | 2927 fps | 100% |
| Somchem S365 | <<locked>> | 86% | 54,462 psi | 85% | 2923 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,767 psi | 87% | 2956 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,593 psi | 87% | 2953 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 56,217 psi | 88% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 55,985 psi | 88% | 2844 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,651 psi | 87% | 2917 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,477 psi | 87% | 2913 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,463 psi | 87% | 2936 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 94% | 55,288 psi | 87% | 2933 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 54,810 psi | 86% | 2923 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 54,607 psi | 86% | 2920 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 54,114 psi | 85% | 2949 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 57,566 psi | 90% | 2999 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 54,114 psi | 85% | 3028 fps | 98.9% |
| Vihtavuori N560 | <<locked>> | 90% | 53,940 psi | 85% | 3025 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 96% | 54,070 psi | 85% | 3009 fps | 99.1% |
| Vihtavuori N565 | <<locked>> | 98% | 57,566 psi | 90% | 3064 fps | 99.5% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,897 psi | 86% | 3074 fps | 98.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,708 psi | 86% | 3071 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,837 psi | 81% | 3064 fps | 96.1% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,663 psi | 81% | 3058 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,158 psi | 86% | 2874 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,984 psi | 86% | 2867 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,246 psi | 90% | 3005 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,043 psi | 89% | 2999 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 54,157 psi | 85% | 3061 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 53,925 psi | 85% | 3058 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,796 psi | 87% | 2953 fps | 99.8% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,622 psi | 87% | 2949 fps | 99.8% |
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% | 35,810 psi | 56% | 2572 fps | 98.5% |
| Accurate 3100 | <<locked>> | 80% | 35,636 psi | 56% | 2569 fps | 98.5% |
| Accurate 4350 | <<locked>> | 80% | 48,138 psi | 75% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 47,921 psi | 75% | 2825 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 39,088 psi | 61% | 2743 fps | 96.1% |
| Accurate MAGPRO | <<locked>> | 84% | 42,699 psi | 67% | 2815 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 84% | 42,525 psi | 67% | 2808 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 40,248 psi | 63% | 2710 fps | 97.5% |
| ADI AR 2209 | <<locked>> | 80% | 40,074 psi | 63% | 2707 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 82% | 38,334 psi | 60% | 2697 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 82% | 38,159 psi | 60% | 2694 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 90% | 37,043 psi | 58% | 2664 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 90% | 36,912 psi | 58% | 2661 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 86% | 29,225 psi | 46% | 2500 fps | 95% |
| ADI AR 2225 | <<locked>> | 88% | 31,038 psi | 49% | 2556 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,582 psi | 64% | 2710 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,408 psi | 63% | 2707 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,354 psi | 73% | 2838 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,137 psi | 72% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,766 psi | 84% | 2953 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,534 psi | 84% | 2949 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,219 psi | 63% | 2703 fps | 97.5% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,030 psi | 63% | 2700 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,027 psi | 56% | 2644 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,868 psi | 56% | 2641 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,722 psi | 54% | 2605 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,548 psi | 54% | 2598 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,994 psi | 47% | 2513 fps | 97.4% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,878 psi | 47% | 2510 fps | 97.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,305 psi | 60% | 2749 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,145 psi | 60% | 2746 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,168 psi | 77% | 2858 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 49,037 psi | 77% | 2854 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 33,388 psi | 52% | 2575 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 33,373 psi | 52% | 2575 fps | 95% |
| Bofors RP30 | <<locked>> | 88% | 36,085 psi | 57% | 2674 fps | 95.5% |
| Bofors RP30 | <<locked>> | 88% | 36,100 psi | 57% | 2677 fps | 95.5% |
| Bofors RP5 | <<locked>> | 80% | 36,027 psi | 56% | 2644 fps | 96.3% |
| Bofors RP5 | <<locked>> | 80% | 35,868 psi | 56% | 2641 fps | 96.2% |
| Bofors RP7 | <<locked>> | 80% | 50,618 psi | 79% | 2835 fps | 99.8% |
| Bofors RP7 | <<locked>> | 80% | 50,415 psi | 79% | 2831 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 35,433 psi | 56% | 2628 fps | 95.5% |
| Hodgdon H1000 | <<locked>> | 86% | 35,273 psi | 55% | 2621 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 49,908 psi | 78% | 2884 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 49,734 psi | 78% | 2881 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 52,475 psi | 82% | 2900 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 52,301 psi | 82% | 2897 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 40,930 psi | 64% | 2703 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 82% | 40,959 psi | 64% | 2703 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,219 psi | 63% | 2687 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,059 psi | 63% | 2684 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,584 psi | 68% | 2713 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,366 psi | 68% | 2710 fps | 100% |
| Hodgdon Retumbo | 64.6 gr | 84% | 33,475 psi | 52% | 2661 fps | 95.9% |
| Hodgdon Retumbo | 64.6 gr | 84% | 33,330 psi | 52% | 2654 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 49,951 psi | 78% | 2917 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 80% | 49,806 psi | 78% | 2913 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,847 psi | 44% | 1663 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,760 psi | 44% | 1660 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,079 psi | 72% | 2769 fps | 99.4% |
| IMR 4350 | <<locked>> | 80% | 45,890 psi | 72% | 2766 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,098 psi | 82% | 2861 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,895 psi | 81% | 2858 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 45,759 psi | 72% | 2772 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 45,542 psi | 71% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,958 psi | 63% | 2648 fps | 95.7% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,813 psi | 62% | 2644 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 82% | 36,912 psi | 58% | 2674 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 82% | 36,767 psi | 58% | 2671 fps | 95.1% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,724 psi | 58% | 2713 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,579 psi | 57% | 2707 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 49,472 psi | 78% | 2805 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 49,298 psi | 77% | 2802 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,688 psi | 75% | 2795 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 47,703 psi | 75% | 2795 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 30,763 psi | 48% | 2444 fps | 96.9% |
| Lovex S071 | <<locked>> | 80% | 30,618 psi | 48% | 2441 fps | 96.9% |
| Norma 204 | <<locked>> | 80% | 46,267 psi | 73% | 2812 fps | 98.7% |
| Norma 204 | <<locked>> | 80% | 46,064 psi | 72% | 2805 fps | 98.6% |
| Norma 217 | <<locked>> | 92% | 31,966 psi | 50% | 2608 fps | 96% |
| Norma 217 | <<locked>> | 92% | 31,821 psi | 50% | 2605 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 37,855 psi | 59% | 2717 fps | 98.2% |
| Norma MRP | <<locked>> | 80% | 37,666 psi | 59% | 2710 fps | 98.1% |
| Norma URP | <<locked>> | 80% | 47,152 psi | 74% | 2815 fps | 100% |
| Norma URP | <<locked>> | 80% | 47,152 psi | 74% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,477 psi | 57% | 2680 fps | 95.4% |
| Ramshot Grand | <<locked>> | 82% | 36,303 psi | 57% | 2674 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 46,093 psi | 72% | 2818 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 80% | 45,934 psi | 72% | 2815 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 82% | 32,430 psi | 51% | 2552 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 82% | 32,271 psi | 51% | 2549 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 45% | 1703 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,384 psi | 44% | 1699 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,225 psi | 76% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,225 psi | 76% | 2851 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,615 psi | 73% | 2874 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,441 psi | 73% | 2871 fps | 100% |
| ReloadSwiss RS 76 | 67.5 gr | 82% | 30,255 psi | 47% | 2562 fps | 95.5% |
| ReloadSwiss RS 76 | 67.5 gr | 82% | 30,139 psi | 47% | 2559 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,508 psi | 62% | 2789 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,378 psi | 62% | 2785 fps | 95% |
| Rottweil R 904 | <<locked>> | 80% | 41,408 psi | 65% | 2687 fps | 96.7% |
| Rottweil R 904 | <<locked>> | 80% | 41,423 psi | 65% | 2687 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 80% | 39,465 psi | 62% | 2687 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 80% | 39,479 psi | 62% | 2687 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 80% | 50,618 psi | 79% | 2835 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 80% | 50,415 psi | 79% | 2831 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,472 psi | 78% | 2805 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,298 psi | 77% | 2802 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,688 psi | 75% | 2795 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 47,703 psi | 75% | 2795 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,283 psi | 76% | 2753 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,312 psi | 76% | 2753 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,146 psi | 61% | 2684 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,146 psi | 61% | 2680 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 42,148 psi | 66% | 2677 fps | 96.2% |
| Somchem S361 | <<locked>> | 80% | 42,003 psi | 66% | 2674 fps | 96.1% |
| Somchem S365 | <<locked>> | 80% | 44,454 psi | 70% | 2769 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 44,237 psi | 69% | 2766 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,045 psi | 63% | 2671 fps | 98.3% |
| Somchem S385 | <<locked>> | 80% | 39,900 psi | 63% | 2667 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 80% | 52,489 psi | 82% | 2795 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 52,504 psi | 82% | 2795 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,675 psi | 76% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,486 psi | 76% | 2805 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,679 psi | 54% | 2539 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 80% | 34,519 psi | 54% | 2536 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 47,892 psi | 75% | 2812 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 47,906 psi | 75% | 2812 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,783 psi | 61% | 2677 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,609 psi | 61% | 2674 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 40,785 psi | 64% | 2772 fps | 96% |
| Vihtavuori N560 | <<locked>> | 82% | 40,625 psi | 64% | 2766 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 86% | 38,159 psi | 60% | 2697 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 86% | 38,000 psi | 60% | 2694 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 94% | 44,106 psi | 69% | 2874 fps | 96% |
| Vihtavuori N568 | <<locked>> | 94% | 43,961 psi | 69% | 2871 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 98% | 48,167 psi | 75% | 2992 fps | 95% |
| Vihtavuori N570 | <<locked>> | 98% | 48,037 psi | 75% | 2989 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,964 psi | 75% | 2766 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,790 psi | 75% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,140 psi | 79% | 2887 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 49,966 psi | 78% | 2884 fps | 99.9% |
| Winchester StaBALL HD | 63.2 gr | 80% | 30,995 psi | 49% | 2628 fps | 100% |
| Winchester StaBALL HD | 63.2 gr | 80% | 30,821 psi | 48% | 2625 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,593 psi | 57% | 2592 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,434 psi | 57% | 2589 fps | 96.4% |
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 147 powders for 7 x 66 SE v. Hofe loaded with the .284 | 160gr | Peregrine Bushmaster (VRG-3). Hodgdon Retumbo delivers the highest muzzle velocity at 3,123 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,123 fps. ADI AR 2217 gives the best case fill at 100 %, and 147 of the 147 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2217, ADI AR 2225 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for 7 x 66 SE v. Hofe with the .284 | 160gr | Peregrine Bushmaster (VRG-3) they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.