Load Specifications
Load data in caliber .250 Savage with .257 | 80gr | Impala LWHV LS bullet and 42 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Alliant AR-Comp and Accurate 2520.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 47,645 psi | 90% | 3041 fps | 99.7% |
| Accurate 2460 | <<locked>> | 88% | 46,006 psi | 87% | 3031 fps | 97.6% |
| Accurate 2495 | <<locked>> | 98% | 46,673 psi | 88% | 3087 fps | 99.8% |
| Accurate 2520 | <<locked>> | 92% | 46,282 psi | 87% | 3077 fps | 97.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,730 psi | 86% | 3094 fps | 98.3% |
| Accurate LT-30 | <<locked>> | 84% | 46,557 psi | 88% | 2946 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 84% | 46,920 psi | 89% | 2953 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 82% | 46,659 psi | 88% | 3002 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 47,645 psi | 90% | 3100 fps | 99% |
| Alliant AR-Comp | <<locked>> | 94% | 46,325 psi | 88% | 3117 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 47,747 psi | 90% | 3068 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 47,776 psi | 90% | 2979 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 46,238 psi | 87% | 2989 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 94% | 46,775 psi | 88% | 3110 fps | 96.2% |
| Hodgdon H322 | <<locked>> | 88% | 46,035 psi | 87% | 3068 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 88% | 47,166 psi | 89% | 3087 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,344 psi | 63% | 1942 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 47,166 psi | 89% | 3156 fps | 99.5% |
| IMR 4198 | <<locked>> | 86% | 45,629 psi | 86% | 2989 fps | 100% |
| Lovex D073.4 | <<locked>> | 82% | 45,890 psi | 87% | 3038 fps | 96.9% |
| Lovex D073.5 | <<locked>> | 88% | 45,861 psi | 87% | 3025 fps | 96.3% |
| Lovex D073.6 | <<locked>> | 96% | 46,775 psi | 88% | 3100 fps | 97.4% |
| Norma 200 | <<locked>> | 82% | 45,716 psi | 86% | 2999 fps | 100% |
| Norma 202 | <<locked>> | 96% | 47,674 psi | 90% | 3094 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,721 psi | 64% | 1991 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 46,108 psi | 87% | 3038 fps | 96.9% |
| Rottweil R 901 | <<locked>> | 92% | 47,659 psi | 90% | 3051 fps | 97.9% |
| Shooters World AR Plus | <<locked>> | 82% | 45,890 psi | 87% | 3038 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 96% | 46,775 psi | 88% | 3100 fps | 97.4% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 45,324 psi | 86% | 3041 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 47,384 psi | 90% | 3005 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 45,310 psi | 86% | 2949 fps | 97.6% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,557 psi | 88% | 2989 fps | 98.8% |
| Somchem S321 | <<locked>> | 90% | 46,818 psi | 88% | 3071 fps | 95.9% |
| Somchem S335 | <<locked>> | 94% | 47,166 psi | 89% | 3005 fps | 98.7% |
| Vihtavuori N120 | <<locked>> | 82% | 46,615 psi | 88% | 2949 fps | 100% |
| Vihtavuori N130 | <<locked>> | 88% | 45,556 psi | 86% | 2963 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 94% | 47,384 psi | 90% | 3005 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 98% | 45,919 psi | 87% | 3071 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 96% | 45,237 psi | 85% | 3018 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 98% | 46,876 psi | 89% | 3064 fps | 97.9% |
| Winchester 748 | <<locked>> | 94% | 47,616 psi | 90% | 3130 fps | 96.7% |
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% | 33,460 psi | 63% | 2730 fps | 97.3% |
| Accurate 2460 | <<locked>> | 82% | 38,174 psi | 72% | 2861 fps | 95.6% |
| Accurate 2495 | <<locked>> | 80% | 26,876 psi | 51% | 2608 fps | 95.1% |
| Accurate 2520 | 32.1 gr | 86% | 37,898 psi | 72% | 2897 fps | 95% |
| Accurate 4064 | <<locked>> | 90% | 34,127 psi | 64% | 2831 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 80% | 41,249 psi | 78% | 2838 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 41,597 psi | 79% | 2841 fps | 96.1% |
| ADI AR 2207 | <<locked>> | 80% | 44,208 psi | 84% | 2956 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 39,305 psi | 74% | 2923 fps | 97.3% |
| Alliant AR-Comp | 27.4 gr | 80% | 30,429 psi | 57% | 2743 fps | 98.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,753 psi | 71% | 2858 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,668 psi | 75% | 2818 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 88% | 43,598 psi | 82% | 2936 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 92% | 43,598 psi | 82% | 3045 fps | 95.4% |
| Hodgdon H322 | <<locked>> | 80% | 36,071 psi | 68% | 2841 fps | 96.3% |
| Hodgdon H335 | <<locked>> | 80% | 36,564 psi | 69% | 2854 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,772 psi | 47% | 1736 fps | 100% |
| IMR 3031 | 28.1 gr | 82% | 31,067 psi | 59% | 2762 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 38,537 psi | 73% | 2838 fps | 99.7% |
| Lovex D073.4 | <<locked>> | 80% | 43,120 psi | 81% | 2982 fps | 96.3% |
| Lovex D073.5 | <<locked>> | 86% | 43,207 psi | 82% | 2969 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 90% | 38,566 psi | 73% | 2930 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 43,047 psi | 81% | 2949 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 35,694 psi | 67% | 2831 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,918 psi | 47% | 1778 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 40,596 psi | 77% | 2920 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 84% | 38,218 psi | 72% | 2844 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 43,120 psi | 81% | 2982 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 38,566 psi | 73% | 2930 fps | 95.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,958 psi | 75% | 2927 fps | 96.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 31,604 psi | 60% | 2654 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 35,824 psi | 68% | 2740 fps | 95% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 32,895 psi | 62% | 2684 fps | 95.2% |
| Somchem S321 | <<locked>> | 88% | 43,743 psi | 83% | 3009 fps | 95% |
| Somchem S335 | <<locked>> | 82% | 33,402 psi | 63% | 2697 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 44,164 psi | 83% | 2907 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,114 psi | 68% | 2759 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 80% | 31,604 psi | 60% | 2654 fps | 96.5% |
| Vihtavuori N135 | <<locked>> | 82% | 28,761 psi | 54% | 2657 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 88% | 35,650 psi | 67% | 2805 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 90% | 36,767 psi | 69% | 2844 fps | 95.2% |
| Winchester 748 | <<locked>> | 90% | 41,916 psi | 79% | 3009 fps | 95.1% |
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 80 powders for .250 Savage loaded with the .257 | 80gr | Impala LWHV LS. IMR 3031 delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,156 fps. Accurate 4064 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 80.0 gr projectile in 0.257" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, ADI AR 2208, Alliant Reloder- TS 15.5 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. IMR 3031, Alliant AR-Comp, Accurate 2520 rank at the top here: for .250 Savage with the .257 | 80gr | Impala LWHV LS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H 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.