Load Specifications
Load data in caliber .25 Creedmoor with .257 | 95gr | Hammer HHT bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 88% | 55,027 psi | 89% | 3031 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,505 psi | 86% | 3054 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 52,504 psi | 85% | 3041 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 55,376 psi | 89% | 3117 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 55,840 psi | 90% | 3136 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,385 psi | 78% | 3081 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 82% | 54,578 psi | 88% | 2976 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 54,984 psi | 89% | 3002 fps | 100% |
| ADI AR 2206H | <<locked>> | 90% | 54,375 psi | 88% | 3123 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 96% | 55,434 psi | 89% | 3120 fps | 99% |
| ADI AR 2219 | <<locked>> | 82% | 55,883 psi | 90% | 3107 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,548 psi | 86% | 3077 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 88% | 53,766 psi | 87% | 3068 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,288 psi | 89% | 3196 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,288 psi | 88% | 3241 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 54,984 psi | 89% | 3143 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 84% | 55,056 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,782 psi | 90% | 3166 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 47,979 psi | 77% | 3094 fps | 97.6% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 55,956 psi | 90% | 3264 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 53,925 psi | 87% | 2966 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,230 psi | 87% | 3133 fps | 98.6% |
| Bofors RP3 | <<locked>> | 96% | 55,230 psi | 89% | 3153 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,593 psi | 90% | 3068 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,707 psi | 85% | 3107 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,621 psi | 88% | 3209 fps | 99% |
| Hodgdon H322 | <<locked>> | 84% | 54,186 psi | 87% | 3084 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 55,477 psi | 89% | 3110 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,272 psi | 86% | 3110 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 90% | 54,853 psi | 88% | 3136 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,976 psi | 71% | 2963 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 53,896 psi | 87% | 3166 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 56% | 1916 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 53,040 psi | 86% | 3087 fps | 99.4% |
| IMR 3031 | <<locked>> | 90% | 54,447 psi | 88% | 3130 fps | 100% |
| IMR 4064 | <<locked>> | 94% | 55,085 psi | 89% | 3104 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,622 psi | 90% | 3077 fps | 96% |
| IMR 4198 | <<locked>> | 84% | 55,216 psi | 89% | 3005 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 54,708 psi | 88% | 3091 fps | 95.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,485 psi | 75% | 3022 fps | 97.1% |
| IMR 4895 | <<locked>> | 92% | 53,519 psi | 86% | 3143 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 88% | 53,548 psi | 86% | 3077 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 84% | 53,693 psi | 87% | 3064 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 53,461 psi | 86% | 3097 fps | 100% |
| Lovex S060 | <<locked>> | 90% | 54,375 psi | 88% | 3051 fps | 99.3% |
| Lovex S062 | <<locked>> | 94% | 54,505 psi | 88% | 3104 fps | 99.8% |
| Lovex S065ᴾ | <<locked>> | 100% | 53,592 psi | 86% | 3081 fps | 97.1% |
| Norma 201 | <<locked>> | 90% | 53,142 psi | 86% | 3071 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 53,650 psi | 87% | 3081 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,868 psi | 88% | 3150 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 48,515 psi | 78% | 3077 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 94% | 55,651 psi | 90% | 3176 fps | 99.4% |
| Ramshot TAC | <<locked>> | 88% | 54,375 psi | 88% | 3087 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,505 psi | 86% | 3110 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,911 psi | 89% | 3081 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,911 psi | 56% | 1962 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,287 psi | 86% | 3064 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 54,056 psi | 87% | 3091 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,883 psi | 90% | 3235 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 55,898 psi | 90% | 3278 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 3107 fps | 97.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,327 psi | 80% | 3123 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 88% | 53,795 psi | 87% | 3058 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 53,229 psi | 86% | 3061 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 98% | 55,071 psi | 89% | 3143 fps | 99.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 53,592 psi | 86% | 3081 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,461 psi | 86% | 3097 fps | 100% |
| Shooters World Precision | <<locked>> | 94% | 54,505 psi | 88% | 3104 fps | 99.8% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 52,837 psi | 85% | 3028 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,809 psi | 87% | 3156 fps | 99.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 55,825 psi | 90% | 3068 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 55,956 psi | 90% | 3120 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 52,852 psi | 85% | 3091 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,303 psi | 89% | 3022 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,201 psi | 89% | 3015 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 54,795 psi | 88% | 3114 fps | 99.9% |
| Somchem S335 | <<locked>> | 90% | 54,360 psi | 88% | 3015 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,390 psi | 89% | 3110 fps | 99.3% |
| Somchem S355 | <<locked>> | 98% | 55,550 psi | 90% | 3140 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,004 psi | 69% | 3015 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 86% | 54,940 psi | 89% | 2989 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 55,347 psi | 89% | 3009 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,086 psi | 90% | 3087 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 54,259 psi | 88% | 3058 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 53,838 psi | 87% | 3071 fps | 99.9% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,879 psi | 82% | 3077 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 88% | 54,389 psi | 88% | 3084 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 94% | 55,912 psi | 90% | 3100 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,067 psi | 81% | 3081 fps | 97.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,228 psi | 84% | 3068 fps | 99.5% |
| Winchester 748 | <<locked>> | 88% | 53,867 psi | 87% | 3133 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 90% | 52,692 psi | 85% | 3100 fps | 99.4% |
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 2015 | <<locked>> | 80% | 42,902 psi | 69% | 2835 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 46,789 psi | 75% | 2940 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 34,780 psi | 56% | 2717 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,814 psi | 67% | 2881 fps | 99.4% |
| Accurate 4064 | <<locked>> | 80% | 32,909 psi | 53% | 2690 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 42,076 psi | 68% | 2956 fps | 95.9% |
| Accurate LT-30 | <<locked>> | 80% | 51,488 psi | 83% | 2930 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,866 psi | 84% | 2956 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 39,392 psi | 64% | 2828 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 38,159 psi | 62% | 2779 fps | 95.2% |
| ADI AR 2219 | <<locked>> | 80% | 51,779 psi | 84% | 3045 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,466 psi | 67% | 2848 fps | 98.2% |
| Alliant AR-Comp | <<locked>> | 80% | 40,596 psi | 65% | 2854 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,182 psi | 78% | 3071 fps | 98.9% |
| Alliant Power Pro 2000-MR | 39.6 gr | 84% | 40,944 psi | 66% | 2963 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,532 psi | 52% | 2674 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,457 psi | 78% | 2943 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 37,695 psi | 61% | 2808 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 94% | 39,653 psi | 64% | 2904 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 88% | 36,854 psi | 59% | 2867 fps | 96% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,676 psi | 82% | 2920 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,133 psi | 66% | 2881 fps | 95.7% |
| Bofors RP3 | <<locked>> | 82% | 34,156 psi | 55% | 2733 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,613 psi | 70% | 2851 fps | 99% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,740 psi | 64% | 2858 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,859 psi | 71% | 3009 fps | 97.1% |
| Hodgdon H322 | <<locked>> | 80% | 47,659 psi | 77% | 2976 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 48,269 psi | 78% | 2992 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 43,453 psi | 70% | 2923 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 39,682 psi | 64% | 2844 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 36,071 psi | 58% | 2785 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,708 psi | 58% | 2799 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,527 psi | 41% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,305 psi | 62% | 2792 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 38,754 psi | 63% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 37,405 psi | 60% | 2756 fps | 95.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 52,112 psi | 84% | 3018 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 48,921 psi | 79% | 2910 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 51,663 psi | 83% | 3038 fps | 95% |
| IMR 4831 | <<locked>> | 96% | 40,408 psi | 65% | 2897 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 36,027 psi | 58% | 2779 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,466 psi | 67% | 2848 fps | 98.2% |
| Lovex D073.5 | <<locked>> | 80% | 46,615 psi | 75% | 2943 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 37,884 psi | 61% | 2805 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 39,914 psi | 64% | 2772 fps | 96.6% |
| Lovex S062 | <<locked>> | 80% | 34,606 psi | 56% | 2700 fps | 96.4% |
| Lovex S065 | <<locked>> | 96% | 47,036 psi | 76% | 2963 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 38,334 psi | 62% | 2782 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 38,595 psi | 62% | 2799 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 37,043 psi | 60% | 2795 fps | 95.7% |
| Norma URP | <<locked>> | 96% | 42,279 psi | 68% | 2953 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 82% | 36,463 psi | 59% | 2799 fps | 95.2% |
| Ramshot TAC | <<locked>> | 82% | 44,309 psi | 71% | 2900 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,582 psi | 65% | 2861 fps | 96.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,092 psi | 73% | 2900 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,918 psi | 42% | 1759 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,688 psi | 75% | 2953 fps | 99.7% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,314 psi | 81% | 3025 fps | 95.6% |
| ReloadSwiss RS 52 | 37.5 gr | 82% | 39,262 psi | 63% | 2913 fps | 95.7% |
| ReloadSwiss RS 60 | 37.1 gr | 80% | 29,965 psi | 48% | 2680 fps | 95.4% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,003 psi | 68% | 2972 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 46,122 psi | 74% | 3058 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 41,945 psi | 68% | 2841 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 80% | 36,419 psi | 59% | 2726 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 84% | 34,345 psi | 55% | 2730 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 47,036 psi | 76% | 2963 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,884 psi | 61% | 2805 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 34,606 psi | 56% | 2700 fps | 96.4% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,429 psi | 80% | 2969 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 35,810 psi | 58% | 2789 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,458 psi | 80% | 2969 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,163 psi | 68% | 2864 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,855 psi | 61% | 2789 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,248 psi | 65% | 2756 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,069 psi | 53% | 2605 fps | 99% |
| Somchem S321 | <<locked>> | 80% | 44,686 psi | 72% | 2936 fps | 99% |
| Somchem S335 | <<locked>> | 80% | 39,537 psi | 64% | 2753 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 39,218 psi | 63% | 2808 fps | 96.3% |
| Somchem S355 | <<locked>> | 84% | 35,476 psi | 57% | 2743 fps | 95.7% |
| Somchem S365 | <<locked>> | 90% | 30,835 psi | 50% | 2707 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 45,687 psi | 74% | 2844 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,466 psi | 65% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,636 psi | 57% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,521 psi | 59% | 2730 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 82% | 31,517 psi | 51% | 2618 fps | 95.9% |
| Vihtavuori N160 | <<locked>> | 94% | 41,713 psi | 67% | 2900 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 41,466 psi | 67% | 2844 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 80% | 35,244 psi | 57% | 2713 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 94% | 40,901 psi | 66% | 2900 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 34,679 psi | 56% | 2700 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 40,437 psi | 65% | 2884 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,159 psi | 60% | 2792 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 108 powders for .25 Creedmoor loaded with the .257 | 95gr | Hammer HHT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,278 fps; across all powders the maximum-charge window runs from 1,916 fps to 3,278 fps. Accurate 4350 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.257" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .25 Creedmoor with the .257 | 95gr | Hammer HHT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.