Load Specifications
Load data in caliber .25-06 Rem. with .257 | 100gr | Impala RNFP KO bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 57,783 psi | 89% | 3051 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,232 psi | 88% | 3087 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,376 psi | 86% | 3143 fps | 99.2% |
| Accurate 4064 | <<locked>> | 84% | 57,957 psi | 89% | 3107 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 58,146 psi | 89% | 3202 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 58,929 psi | 90% | 3173 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 56,318 psi | 86% | 3117 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,044 psi | 89% | 3222 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,564 psi | 85% | 3245 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 58,175 psi | 89% | 3222 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,377 psi | 88% | 3146 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,696 psi | 88% | 3169 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,580 psi | 88% | 3248 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,376 psi | 85% | 3219 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,421 psi | 88% | 3212 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,143 psi | 84% | 3215 fps | 97.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,967 psi | 80% | 3153 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,571 psi | 70% | 3061 fps | 98.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,188 psi | 86% | 3301 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 58,929 psi | 90% | 3186 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,502 psi | 77% | 3127 fps | 96% |
| Bofors RP3 | <<locked>> | 86% | 58,813 psi | 90% | 3169 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,143 psi | 84% | 3215 fps | 97.2% |
| Bofors RP7 | <<locked>> | 90% | 57,725 psi | 88% | 3136 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 55,376 psi | 85% | 3123 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 90% | 55,956 psi | 86% | 3186 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 90% | 58,914 psi | 90% | 3196 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 58,450 psi | 90% | 3169 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,159 psi | 86% | 3159 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,927 psi | 86% | 3215 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,680 psi | 56% | 1998 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,608 psi | 87% | 3123 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,840 psi | 86% | 3100 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,218 psi | 89% | 3127 fps | 98.7% |
| IMR 4350 | <<locked>> | 94% | 58,392 psi | 89% | 3163 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 90% | 58,827 psi | 90% | 3163 fps | 98.8% |
| IMR 4831 | <<locked>> | 94% | 57,870 psi | 89% | 3182 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,709 psi | 85% | 3146 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 57,145 psi | 88% | 3087 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,492 psi | 87% | 3100 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,057 psi | 86% | 3110 fps | 99.3% |
| Lovex S070 | <<locked>> | 92% | 57,493 psi | 88% | 3153 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,079 psi | 72% | 2982 fps | 97.8% |
| Norma 201 | <<locked>> | 82% | 58,059 psi | 89% | 3117 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,262 psi | 89% | 3107 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,058 psi | 87% | 3156 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,593 psi | 85% | 3156 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 58,610 psi | 90% | 3307 fps | 99% |
| Norma URP | <<locked>> | 92% | 56,014 psi | 86% | 3176 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 57,812 psi | 89% | 3176 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 58,421 psi | 90% | 3228 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,776 psi | 75% | 3068 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,478 psi | 57% | 2047 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,508 psi | 90% | 3153 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 58,769 psi | 90% | 3245 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 58,624 psi | 90% | 3271 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,435 psi | 88% | 3215 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,579 psi | 85% | 3235 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 58,581 psi | 90% | 3114 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,929 psi | 90% | 3163 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,101 psi | 86% | 3130 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 98% | 56,884 psi | 87% | 3199 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 57,725 psi | 88% | 3136 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,057 psi | 86% | 3110 fps | 99.3% |
| Shooters World Precision | <<locked>> | 84% | 56,492 psi | 87% | 3100 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,493 psi | 88% | 3153 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,362 psi | 86% | 3163 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,305 psi | 88% | 3136 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,276 psi | 89% | 3038 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 58,943 psi | 90% | 3031 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,057 psi | 86% | 3061 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,376 psi | 86% | 3192 fps | 97.4% |
| Somchem S335 | <<locked>> | 82% | 58,247 psi | 89% | 3038 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,726 psi | 90% | 3156 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 55,448 psi | 85% | 3182 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,856 psi | 89% | 3176 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 58,581 psi | 90% | 3018 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 58,682 psi | 90% | 3071 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 58,900 psi | 90% | 3084 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,260 psi | 86% | 3074 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 58,218 psi | 89% | 3169 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,519 psi | 82% | 3087 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,130 psi | 88% | 3077 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,522 psi | 88% | 3176 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 58,653 psi | 90% | 3245 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 58,682 psi | 90% | 3291 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,769 psi | 89% | 3130 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,956 psi | 86% | 3186 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,688 psi | 73% | 3215 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,609 psi | 88% | 3146 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,769 psi | 89% | 3163 fps | 97.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 54,360 psi | 83% | 3002 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,560 psi | 77% | 2972 fps | 96.7% |
| Accurate 3100 | <<locked>> | 88% | 38,116 psi | 58% | 2792 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 51,401 psi | 79% | 3005 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,247 psi | 60% | 2848 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 55,187 psi | 85% | 3114 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 47,007 psi | 72% | 2953 fps | 99.3% |
| ADI AR 2209 | <<locked>> | 92% | 48,138 psi | 74% | 3041 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,895 psi | 80% | 3179 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 48,399 psi | 74% | 3045 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,892 psi | 73% | 2986 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,937 psi | 78% | 3058 fps | 99.7% |
| Alliant Reloder-16 | 43.7 gr | 80% | 37,623 psi | 58% | 2844 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,337 psi | 65% | 2976 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 47,834 psi | 73% | 3038 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 48,385 psi | 74% | 3091 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 30,226 psi | 46% | 2651 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 94% | 38,174 psi | 58% | 2881 fps | 95.8% |
| Alliant Reloder-26 | 50.6 gr | 84% | 34,606 psi | 53% | 2828 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 55,216 psi | 85% | 3127 fps | 99.8% |
| Bofors RP15 | <<locked>> | 98% | 47,471 psi | 73% | 3068 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 48,704 psi | 75% | 3002 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 48,385 psi | 74% | 3091 fps | 95.6% |
| Bofors RP7 | <<locked>> | 82% | 45,411 psi | 70% | 2910 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 48,805 psi | 75% | 3005 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 43,366 psi | 66% | 2943 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 46,122 psi | 71% | 2959 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,360 psi | 54% | 2740 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,518 psi | 80% | 3100 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 42,511 psi | 65% | 2949 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 42% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,301 psi | 82% | 3071 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,443 psi | 76% | 2989 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,706 psi | 79% | 3015 fps | 97.7% |
| IMR 4350 | <<locked>> | 84% | 43,120 psi | 66% | 2881 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,758 psi | 67% | 2881 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 37,434 psi | 57% | 2789 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 52,185 psi | 80% | 3087 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 53,882 psi | 83% | 3031 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,125 psi | 77% | 2995 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,930 psi | 64% | 2838 fps | 96.7% |
| Lovex S070 | <<locked>> | 80% | 40,321 psi | 62% | 2818 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 39,247 psi | 60% | 2818 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 54,679 psi | 84% | 3064 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,882 psi | 84% | 3058 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,328 psi | 77% | 3041 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 48,791 psi | 75% | 3035 fps | 95.2% |
| Norma MRP | <<locked>> | 90% | 41,916 psi | 64% | 2982 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 38,653 psi | 59% | 2835 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 50,691 psi | 78% | 3064 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 39,943 psi | 61% | 2871 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 45,382 psi | 70% | 2999 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,036 psi | 43% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,457 psi | 74% | 2979 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 54,868 psi | 84% | 3182 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,773 psi | 69% | 3038 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,682 psi | 59% | 2854 fps | 96.8% |
| ReloadSwiss RS 70 | 47.8 gr | 80% | 37,492 psi | 57% | 2851 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 52,025 psi | 80% | 3012 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,137 psi | 71% | 2949 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 52,794 psi | 81% | 3074 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 92% | 47,050 psi | 72% | 3022 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 45,411 psi | 70% | 2910 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,930 psi | 64% | 2838 fps | 96.7% |
| Shooters World Precision | <<locked>> | 80% | 50,125 psi | 77% | 2995 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,321 psi | 62% | 2818 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,514 psi | 71% | 2992 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,780 psi | 82% | 3081 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,795 psi | 84% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,586 psi | 71% | 2844 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,973 psi | 63% | 2772 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 46,615 psi | 71% | 3012 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 54,926 psi | 84% | 2989 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 46,166 psi | 71% | 2943 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 35,186 psi | 54% | 2792 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 45,092 psi | 69% | 2946 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 55,143 psi | 84% | 2969 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 52,054 psi | 80% | 2976 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,199 psi | 80% | 2986 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,106 psi | 68% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,726 psi | 61% | 2828 fps | 97.3% |
| Vihtavuori N165 | <<locked>> | 96% | 46,992 psi | 72% | 2969 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 50,531 psi | 77% | 2976 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,508 psi | 61% | 2831 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 80% | 31,372 psi | 48% | 2680 fps | 95.1% |
| Vihtavuori N560 | <<locked>> | 98% | 54,853 psi | 84% | 3222 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,073 psi | 60% | 2795 fps | 99.1% |
| Winchester 760 | <<locked>> | 82% | 43,366 psi | 66% | 2943 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 84% | 28,761 psi | 44% | 2680 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,954 psi | 83% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 47,326 psi | 73% | 2979 fps | 95% |
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 91 powders for .25-06 Rem. loaded with the .257 | 100gr | Impala RNFP KO. Norma MRP delivers the highest muzzle velocity at 3,307 fps; across all powders the maximum-charge window runs from 1,998 fps to 3,307 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (450 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.257" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. ReloadSwiss RS 70, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for .25-06 Rem. with the .257 | 100gr | Impala RNFP KO 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.