Load Specifications
Load data in caliber .250 Savage with .257 | 120gr | Remington PSP Core-Lokt bullet and 77 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 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 46,804 psi | 88% | 2503 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 47,892 psi | 90% | 2562 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 46,949 psi | 89% | 2559 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 46,006 psi | 87% | 2569 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 46,949 psi | 89% | 2595 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 45,252 psi | 85% | 2635 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 86% | 45,890 psi | 87% | 2572 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 92% | 46,963 psi | 89% | 2572 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 45,324 psi | 86% | 2536 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 86% | 47,543 psi | 90% | 2572 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 44,628 psi | 84% | 2651 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 46,035 psi | 87% | 2592 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 90% | 46,615 psi | 88% | 2605 fps | 98.3% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 45,426 psi | 86% | 2644 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 46,064 psi | 87% | 2687 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 45,005 psi | 85% | 2575 fps | 97.4% |
| Bofors RP3 | <<locked>> | 92% | 45,919 psi | 87% | 2605 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 47,688 psi | 90% | 2533 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 46,746 psi | 88% | 2608 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 82% | 44,773 psi | 85% | 2631 fps | 98% |
| Hodgdon H380 | <<locked>> | 92% | 47,152 psi | 89% | 2605 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 86% | 46,253 psi | 87% | 2585 fps | 99% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 41,655 psi | 79% | 2536 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 47,543 psi | 90% | 2657 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 65% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 47,456 psi | 90% | 2589 fps | 99.1% |
| IMR 3031 | <<locked>> | 86% | 45,339 psi | 86% | 2582 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 46,427 psi | 88% | 2556 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 43,439 psi | 82% | 2585 fps | 97.1% |
| IMR 4895 | <<locked>> | 90% | 47,747 psi | 90% | 2638 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 84% | 45,324 psi | 86% | 2536 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 82% | 47,906 psi | 90% | 2569 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 88% | 47,311 psi | 89% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 46,543 psi | 88% | 2516 fps | 98.6% |
| Lovex S062 | <<locked>> | 90% | 46,035 psi | 87% | 2559 fps | 99.4% |
| Lovex S065 | <<locked>> | 96% | 45,092 psi | 85% | 2539 fps | 95.7% |
| Norma 201 | <<locked>> | 88% | 47,659 psi | 90% | 2572 fps | 99.6% |
| Norma 202 | <<locked>> | 86% | 45,034 psi | 85% | 2539 fps | 100% |
| Norma 203B | <<locked>> | 90% | 45,876 psi | 87% | 2595 fps | 98.6% |
| Norma URPᴾ | <<locked>> | 100% | 45,368 psi | 86% | 2628 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 90% | 45,861 psi | 87% | 2618 fps | 98.4% |
| Ramshot TAC | <<locked>> | 84% | 45,397 psi | 86% | 2536 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 86% | 47,659 psi | 90% | 2612 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 46,079 psi | 87% | 2530 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,867 psi | 66% | 1640 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 45,759 psi | 86% | 2657 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 45,745 psi | 86% | 2690 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,237 psi | 85% | 2657 fps | 97.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 46,441 psi | 88% | 2671 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 84% | 46,108 psi | 87% | 2523 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 45,353 psi | 86% | 2526 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 94% | 45,774 psi | 86% | 2592 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,092 psi | 85% | 2539 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 47,311 psi | 89% | 2602 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 46,035 psi | 87% | 2559 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 47,326 psi | 89% | 2648 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 46,427 psi | 88% | 2562 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 47,210 psi | 89% | 2592 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 47,036 psi | 89% | 2490 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 46,586 psi | 88% | 2490 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 45,832 psi | 87% | 2562 fps | 99.5% |
| Somchem S335 | <<locked>> | 86% | 46,340 psi | 88% | 2493 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 45,977 psi | 87% | 2559 fps | 98.5% |
| Somchem S355 | <<locked>> | 94% | 46,586 psi | 88% | 2595 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 40,408 psi | 76% | 2582 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 82% | 46,746 psi | 88% | 2464 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 47,065 psi | 89% | 2484 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 47,181 psi | 89% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 45,556 psi | 86% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 47,442 psi | 90% | 2575 fps | 99.8% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 47,892 psi | 90% | 2631 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 84% | 45,368 psi | 86% | 2530 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 90% | 46,688 psi | 88% | 2562 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,036 psi | 89% | 2638 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 45,934 psi | 87% | 2572 fps | 99% |
| Winchester 748 | <<locked>> | 86% | 47,471 psi | 90% | 2621 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 46,702 psi | 88% | 2602 fps | 99.1% |
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% | 41,481 psi | 78% | 2418 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 44,933 psi | 85% | 2513 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 33,939 psi | 64% | 2336 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 40,030 psi | 76% | 2467 fps | 99.6% |
| Accurate 4064 | <<locked>> | 80% | 32,111 psi | 61% | 2320 fps | 99% |
| Accurate 4350 | <<locked>> | 94% | 36,695 psi | 69% | 2474 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 38,000 psi | 72% | 2421 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 36,564 psi | 69% | 2375 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,001 psi | 76% | 2438 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 80% | 39,001 psi | 74% | 2441 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 38,986 psi | 74% | 2536 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 31,546 psi | 60% | 2303 fps | 95.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 36,201 psi | 68% | 2405 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,072 psi | 72% | 2493 fps | 95.2% |
| Alliant Reloder-17 | 31.6 gr | 86% | 33,127 psi | 63% | 2408 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 36,724 psi | 69% | 2415 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 30,647 psi | 58% | 2297 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,192 psi | 80% | 2438 fps | 99.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,942 psi | 72% | 2448 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 41,626 psi | 79% | 2569 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 86% | 38,914 psi | 74% | 2454 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 38,232 psi | 72% | 2434 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 32,634 psi | 62% | 2343 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,345 psi | 65% | 2398 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,599 psi | 48% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,840 psi | 70% | 2388 fps | 97% |
| IMR 3031 | <<locked>> | 80% | 37,318 psi | 70% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 36,303 psi | 69% | 2362 fps | 95.7% |
| IMR 4831 | <<locked>> | 96% | 38,189 psi | 72% | 2487 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 34,679 psi | 66% | 2382 fps | 95.9% |
| IMR 8208 XBR | <<locked>> | 80% | 40,001 psi | 76% | 2438 fps | 98.4% |
| Lovex D073.5 | <<locked>> | 80% | 44,527 psi | 84% | 2516 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 36,434 psi | 69% | 2408 fps | 99% |
| Lovex S060 | <<locked>> | 80% | 38,667 psi | 73% | 2369 fps | 97% |
| Lovex S062 | <<locked>> | 80% | 33,504 psi | 63% | 2316 fps | 96.9% |
| Lovex S065 | <<locked>> | 94% | 42,380 psi | 80% | 2490 fps | 95% |
| Norma 201 | <<locked>> | 80% | 37,304 psi | 70% | 2385 fps | 97.9% |
| Norma 202 | <<locked>> | 80% | 37,463 psi | 71% | 2402 fps | 99.6% |
| Norma 203B | <<locked>> | 80% | 33,359 psi | 63% | 2346 fps | 95.3% |
| Norma URP | <<locked>> | 94% | 37,797 psi | 71% | 2484 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 82% | 35,128 psi | 66% | 2402 fps | 95.6% |
| Ramshot TAC | <<locked>> | 82% | 42,786 psi | 81% | 2487 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,841 psi | 73% | 2451 fps | 97% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,366 psi | 82% | 2484 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 49% | 1467 fps | 100% |
| ReloadSwiss RS 52 | 28.9 gr | 80% | 34,824 psi | 66% | 2434 fps | 95.1% |
| ReloadSwiss RS 60 | 29.4 gr | 80% | 29,109 psi | 55% | 2306 fps | 96.1% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 39,421 psi | 74% | 2546 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 43,265 psi | 82% | 2608 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 41,031 psi | 78% | 2434 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 80% | 35,491 psi | 67% | 2339 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 30,850 psi | 58% | 2293 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 42,380 psi | 80% | 2490 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,434 psi | 69% | 2408 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 33,504 psi | 63% | 2316 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 34,360 psi | 65% | 2392 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 40,480 psi | 76% | 2454 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,506 psi | 69% | 2392 fps | 96.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,030 psi | 74% | 2356 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,053 psi | 61% | 2228 fps | 99.3% |
| Somchem S321 | <<locked>> | 80% | 42,685 psi | 81% | 2510 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 38,493 psi | 73% | 2359 fps | 99.9% |
| Somchem S341 | <<locked>> | 80% | 37,376 psi | 71% | 2402 fps | 96.5% |
| Somchem S355 | <<locked>> | 82% | 32,024 psi | 60% | 2303 fps | 95.4% |
| Somchem S365 | <<locked>> | 90% | 29,486 psi | 56% | 2323 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 44,280 psi | 84% | 2425 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,131 psi | 74% | 2356 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,432 psi | 65% | 2336 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,244 psi | 67% | 2339 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 80% | 28,442 psi | 54% | 2198 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 39,537 psi | 75% | 2480 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 39,842 psi | 75% | 2431 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 80% | 33,837 psi | 64% | 2326 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 94% | 38,537 psi | 73% | 2484 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 33,330 psi | 63% | 2320 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 38,725 psi | 73% | 2470 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,563 psi | 67% | 2392 fps | 96.8% |
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 96 powders for .250 Savage loaded with the .257 | 120gr | Remington PSP Core-Lokt. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,690 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,690 fps. Accurate 4350 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 120.0 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, 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 60, Alliant Reloder-17, ReloadSwiss RS 52 rank at the top here: for .250 Savage with the .257 | 120gr | Remington PSP Core-Lokt 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.