Load Specifications
Load data in caliber .250 Savage with .257 | 117gr | Sierra GameKing bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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>> | 84% | 46,891 psi | 89% | 2546 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 47,195 psi | 89% | 2605 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 45,861 psi | 87% | 2608 fps | 99.9% |
| Accurate 4064 | <<locked>> | 92% | 47,137 psi | 89% | 2641 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,165 psi | 85% | 2674 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 86% | 45,788 psi | 86% | 2612 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 92% | 46,804 psi | 88% | 2612 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 84% | 45,281 psi | 86% | 2575 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 86% | 47,529 psi | 90% | 2615 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 44,744 psi | 85% | 2694 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 45,803 psi | 87% | 2631 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 90% | 46,833 psi | 88% | 2651 fps | 98.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,411 psi | 86% | 2684 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 45,963 psi | 87% | 2726 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 45,165 psi | 85% | 2618 fps | 97.3% |
| Bofors RP3 | <<locked>> | 92% | 45,629 psi | 86% | 2638 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 47,688 psi | 90% | 2572 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 46,499 psi | 88% | 2644 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 84% | 47,877 psi | 90% | 2726 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 92% | 47,268 psi | 89% | 2648 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 46,122 psi | 87% | 2621 fps | 98.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,669 psi | 79% | 2575 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 47,616 psi | 90% | 2700 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,490 psi | 65% | 1631 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 47,297 psi | 89% | 2625 fps | 99% |
| IMR 3031 | <<locked>> | 86% | 45,324 psi | 86% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 46,267 psi | 87% | 2595 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,395 psi | 82% | 2625 fps | 96.9% |
| IMR 4895 | <<locked>> | 88% | 44,672 psi | 84% | 2625 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 84% | 45,281 psi | 86% | 2575 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 82% | 47,703 psi | 90% | 2608 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 88% | 47,529 psi | 90% | 2644 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 46,514 psi | 88% | 2556 fps | 98.5% |
| Lovex S062 | <<locked>> | 90% | 45,934 psi | 87% | 2598 fps | 99.4% |
| Norma 201 | <<locked>> | 86% | 45,121 psi | 85% | 2572 fps | 99.2% |
| Norma 202 | <<locked>> | 88% | 47,863 psi | 90% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 90% | 46,021 psi | 87% | 2638 fps | 98.5% |
| Norma URPᴾ | <<locked>> | 100% | 45,295 psi | 86% | 2671 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 90% | 45,890 psi | 87% | 2657 fps | 98.3% |
| Ramshot TAC | <<locked>> | 84% | 45,629 psi | 86% | 2579 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 47,413 psi | 90% | 2648 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 46,325 psi | 88% | 2575 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,056 psi | 66% | 1677 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 45,934 psi | 87% | 2700 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 45,701 psi | 86% | 2733 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,034 psi | 85% | 2690 fps | 96.9% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,644 psi | 88% | 2713 fps | 96.3% |
| Rottweil R 901 | <<locked>> | 84% | 46,195 psi | 87% | 2566 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 45,295 psi | 86% | 2566 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 94% | 45,513 psi | 86% | 2628 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 47,529 psi | 90% | 2644 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 45,934 psi | 87% | 2598 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 47,340 psi | 89% | 2687 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 86% | 47,123 psi | 89% | 2526 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 46,543 psi | 88% | 2602 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,413 psi | 90% | 2635 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 47,036 psi | 89% | 2530 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 46,470 psi | 88% | 2530 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 45,701 psi | 86% | 2602 fps | 99.4% |
| Somchem S335 | <<locked>> | 86% | 46,282 psi | 87% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 46,108 psi | 87% | 2602 fps | 98.4% |
| Somchem S355 | <<locked>> | 94% | 46,731 psi | 88% | 2638 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,350 psi | 76% | 2621 fps | 99% |
| Vihtavuori N130 | <<locked>> | 82% | 46,891 psi | 89% | 2507 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 47,123 psi | 89% | 2526 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 47,137 psi | 89% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 45,440 psi | 86% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 47,558 psi | 90% | 2618 fps | 99.7% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,819 psi | 90% | 2671 fps | 97.5% |
| Vihtavuori N530 | <<locked>> | 84% | 45,281 psi | 86% | 2569 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 90% | 46,891 psi | 89% | 2605 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 46,934 psi | 89% | 2677 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 46,093 psi | 87% | 2612 fps | 98.9% |
| Winchester 748 | <<locked>> | 86% | 47,688 psi | 90% | 2667 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 46,383 psi | 88% | 2638 fps | 99% |
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% | 41,278 psi | 78% | 2454 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,026 psi | 64% | 2375 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,001 psi | 76% | 2503 fps | 99.5% |
| Accurate 4064 | <<locked>> | 80% | 32,169 psi | 61% | 2356 fps | 98.9% |
| Accurate 4350 | <<locked>> | 96% | 39,378 psi | 74% | 2569 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 38,087 psi | 72% | 2461 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 36,593 psi | 69% | 2411 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,045 psi | 76% | 2477 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 80% | 39,146 psi | 74% | 2484 fps | 100% |
| Alliant Power Pro 2000-MR | 32 gr | 84% | 39,175 psi | 74% | 2579 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,314 psi | 59% | 2333 fps | 95.5% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,230 psi | 68% | 2441 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 37,898 psi | 72% | 2526 fps | 95% |
| Alliant Reloder-17 | 32.2 gr | 86% | 32,967 psi | 62% | 2438 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,941 psi | 70% | 2457 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 30,661 psi | 58% | 2329 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 41,916 psi | 79% | 2470 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,855 psi | 72% | 2487 fps | 98.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,887 psi | 79% | 2615 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 88% | 41,292 psi | 78% | 2539 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 38,319 psi | 72% | 2474 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,503 psi | 61% | 2375 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,316 psi | 65% | 2434 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,614 psi | 48% | 1457 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,898 psi | 70% | 2428 fps | 96.9% |
| IMR 3031 | <<locked>> | 80% | 37,101 psi | 70% | 2477 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 35,998 psi | 68% | 2395 fps | 95.5% |
| IMR 4831 | <<locked>> | 96% | 38,203 psi | 72% | 2523 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 34,766 psi | 66% | 2421 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 40,045 psi | 76% | 2477 fps | 98.3% |
| Lovex D073.5 | <<locked>> | 80% | 44,860 psi | 85% | 2559 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 36,448 psi | 69% | 2444 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 38,769 psi | 73% | 2411 fps | 96.9% |
| Lovex S062 | <<locked>> | 80% | 33,620 psi | 64% | 2356 fps | 96.8% |
| Norma 201 | <<locked>> | 80% | 37,405 psi | 71% | 2425 fps | 97.8% |
| Norma 202 | <<locked>> | 80% | 37,246 psi | 70% | 2434 fps | 99.5% |
| Norma 203B | <<locked>> | 80% | 33,388 psi | 63% | 2382 fps | 95.1% |
| Norma URP | <<locked>> | 96% | 39,958 psi | 75% | 2569 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 82% | 34,998 psi | 66% | 2438 fps | 95.4% |
| Ramshot TAC | <<locked>> | 82% | 42,598 psi | 80% | 2523 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,769 psi | 73% | 2487 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,265 psi | 82% | 2520 fps | 97.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,860 psi | 49% | 1493 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,507 psi | 71% | 2533 fps | 95.9% |
| ReloadSwiss RS 60 | 30 gr | 80% | 29,080 psi | 55% | 2339 fps | 95.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,334 psi | 74% | 2582 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 43,468 psi | 82% | 2654 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,191 psi | 78% | 2477 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 80% | 35,636 psi | 67% | 2379 fps | 97.3% |
| Rottweil R 903 | <<locked>> | 82% | 30,864 psi | 58% | 2326 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,448 psi | 69% | 2444 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 33,620 psi | 64% | 2356 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,272 psi | 65% | 2428 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,957 psi | 74% | 2392 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,364 psi | 76% | 2490 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,477 psi | 69% | 2428 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,870 psi | 73% | 2392 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,879 psi | 60% | 2260 fps | 99.2% |
| Somchem S321 | <<locked>> | 80% | 42,960 psi | 81% | 2552 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 38,580 psi | 73% | 2398 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,652 psi | 71% | 2444 fps | 96.4% |
| Somchem S355 | <<locked>> | 82% | 32,097 psi | 61% | 2343 fps | 95.2% |
| Somchem S365 | <<locked>> | 90% | 29,631 psi | 56% | 2362 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 44,063 psi | 83% | 2461 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 38,957 psi | 74% | 2392 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,229 psi | 65% | 2369 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,346 psi | 67% | 2375 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 28,500 psi | 54% | 2234 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 94% | 39,639 psi | 75% | 2523 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 39,929 psi | 75% | 2470 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 80% | 33,852 psi | 64% | 2362 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 94% | 38,595 psi | 73% | 2523 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,112 psi | 63% | 2349 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 38,696 psi | 73% | 2507 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,520 psi | 67% | 2428 fps | 96.6% |
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 75 powders for .250 Savage loaded with the .257 | 117gr | Sierra GameKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,733 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,733 fps. Accurate 4350 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 117.0 gr projectile in 0.257" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for .250 Savage with the .257 | 117gr | Sierra GameKing 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.