Load Specifications
Bullet:.257 | 128gr | Hornady ELD-X
Bullet Manufacturer:Hornady
Bullet Weight:128 gr
Bullet Diameter:0.257"
Bullet Length:<<locked>>
Caliber:.25 Creedmoor load data
Case Length (l3):1.92"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:51.5 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,001 psi
Recommended Twist Rate:1:8.0
Load data in caliber .25 Creedmoor with .257 | 128gr | Hornady ELD-X bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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>> | 82% | 54,462 psi | 88% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 53,301 psi | 86% | 2605 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,853 psi | 88% | 2667 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,637 psi | 90% | 2664 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,932 psi | 71% | 2579 fps | 97.6% |
| Accurate 4064 | <<locked>> | 88% | 53,374 psi | 86% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,142 psi | 86% | 2740 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 53,635 psi | 87% | 2684 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,694 psi | 88% | 2687 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 51,692 psi | 83% | 2723 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,956 psi | 90% | 2684 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,751 psi | 87% | 2608 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,026 psi | 86% | 2799 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 51,329 psi | 83% | 2720 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,984 psi | 89% | 2710 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,114 psi | 89% | 2726 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,404 psi | 88% | 2795 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,608 psi | 90% | 2828 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,560 psi | 82% | 2713 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,698 psi | 67% | 2605 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,891 psi | 76% | 2772 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,171 psi | 86% | 2697 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 55,622 psi | 90% | 2726 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,332 psi | 89% | 2700 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,273 psi | 88% | 2618 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,259 psi | 89% | 2710 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 52,591 psi | 85% | 2684 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 52,344 psi | 84% | 2740 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 92% | 53,040 psi | 86% | 2703 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 54,157 psi | 87% | 2694 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,114 psi | 87% | 2720 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,693 psi | 87% | 2726 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 52,518 psi | 85% | 2772 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 58% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,245 psi | 89% | 2694 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,230 psi | 87% | 2671 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,244 psi | 87% | 2671 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,012 psi | 87% | 2654 fps | 98.4% |
| IMR 4350 | <<locked>> | 98% | 55,506 psi | 90% | 2723 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,621 psi | 86% | 2677 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 53,867 psi | 87% | 2736 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 53,171 psi | 86% | 2703 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,956 psi | 90% | 2684 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 53,272 psi | 86% | 2657 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,072 psi | 90% | 2657 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,273 psi | 88% | 2667 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,447 psi | 86% | 2677 fps | 99.3% |
| Lovex S070 | <<locked>> | 96% | 54,215 psi | 87% | 2710 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 55,521 psi | 90% | 2674 fps | 100% |
| Norma 202 | <<locked>> | 84% | 52,837 psi | 85% | 2628 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,331 psi | 88% | 2713 fps | 100% |
| Norma 204 | <<locked>> | 96% | 52,576 psi | 85% | 2720 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 46,673 psi | 75% | 2726 fps | 97.2% |
| Norma URP | <<locked>> | 98% | 55,782 psi | 90% | 2779 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 54,998 psi | 89% | 2740 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,679 psi | 88% | 2782 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 56,086 psi | 90% | 2707 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,043 psi | 90% | 2723 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,187 psi | 58% | 1677 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 52,939 psi | 85% | 2671 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,072 psi | 90% | 2795 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,172 psi | 89% | 2822 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 52,837 psi | 85% | 2762 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,014 psi | 90% | 2848 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 53,548 psi | 86% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,086 psi | 90% | 2674 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,419 psi | 89% | 2717 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,342 psi | 80% | 2694 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 55,332 psi | 89% | 2700 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,447 psi | 86% | 2677 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 53,272 psi | 86% | 2657 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,273 psi | 88% | 2667 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,215 psi | 87% | 2710 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 53,548 psi | 86% | 2726 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,636 psi | 88% | 2684 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,550 psi | 90% | 2707 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,708 psi | 87% | 2569 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,867 psi | 87% | 2569 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,432 psi | 86% | 2628 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,878 psi | 79% | 2690 fps | 96.3% |
| Somchem S335 | <<locked>> | 84% | 53,069 psi | 86% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,172 psi | 87% | 2674 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 55,680 psi | 90% | 2713 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,143 psi | 87% | 2782 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,879 psi | 80% | 2674 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 84% | 54,056 psi | 87% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 52,924 psi | 85% | 2595 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,301 psi | 86% | 2608 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,592 psi | 86% | 2644 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,592 psi | 88% | 2723 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 82% | 52,736 psi | 85% | 2631 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,868 psi | 88% | 2651 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,766 psi | 87% | 2733 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,195 psi | 75% | 2677 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,563 psi | 88% | 2700 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 52,750 psi | 85% | 2677 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 52,794 psi | 85% | 2746 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,246 psi | 60% | 2625 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,187 psi | 89% | 2713 fps | 100% |
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% | 51,198 psi | 83% | 2536 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,976 psi | 71% | 2474 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,140 psi | 82% | 2618 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,004 psi | 69% | 2457 fps | 95.3% |
| Accurate 3100 | <<locked>> | 94% | 35,708 psi | 58% | 2421 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 41,568 psi | 67% | 2474 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,676 psi | 49% | 2316 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 47,123 psi | 76% | 2582 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,277 psi | 65% | 2448 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 98% | 48,196 psi | 78% | 2664 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,168 psi | 79% | 2585 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,357 psi | 81% | 2566 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,236 psi | 70% | 2628 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 48,240 psi | 78% | 2667 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,074 psi | 65% | 2467 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,801 psi | 69% | 2526 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,140 psi | 50% | 2329 fps | 95.4% |
| Alliant Reloder-17 | 34.6 gr | 80% | 34,780 psi | 56% | 2451 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,558 psi | 77% | 2661 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,992 psi | 44% | 2244 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,866 psi | 53% | 2464 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,398 psi | 75% | 2592 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 39,842 psi | 64% | 2474 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 43,337 psi | 70% | 2500 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,778 psi | 82% | 2569 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,530 psi | 78% | 2612 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,712 psi | 66% | 2480 fps | 97.9% |
| Hodgdon H414 | <<locked>> | 86% | 40,147 psi | 65% | 2523 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 86% | 43,845 psi | 71% | 2546 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 47,587 psi | 77% | 2592 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,689 psi | 46% | 2241 fps | 96.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,845 psi | 71% | 2572 fps | 99.9% |
| Hodgdon Superformance | 40.2 gr | 88% | 42,612 psi | 69% | 2595 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 43% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,629 psi | 74% | 2546 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,630 psi | 77% | 2579 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,308 psi | 68% | 2477 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,759 psi | 72% | 2500 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 40,669 psi | 66% | 2474 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,755 psi | 64% | 2431 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 29,878 psi | 48% | 2280 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 43,845 psi | 71% | 2556 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 49,168 psi | 79% | 2585 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,615 psi | 75% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,833 psi | 76% | 2516 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,119 psi | 68% | 2474 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,693 psi | 56% | 2329 fps | 95.2% |
| Lovex S070 | <<locked>> | 86% | 39,726 psi | 64% | 2457 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 46,209 psi | 75% | 2533 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,702 psi | 75% | 2539 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,163 psi | 68% | 2513 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 45,992 psi | 74% | 2612 fps | 95% |
| Norma MRP | <<locked>> | 96% | 40,553 psi | 65% | 2605 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,169 psi | 50% | 2320 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 42,018 psi | 68% | 2533 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 36,970 psi | 60% | 2464 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 49,168 psi | 79% | 2602 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,936 psi | 79% | 2618 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,050 psi | 44% | 1499 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,973 psi | 66% | 2464 fps | 96.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,484 psi | 73% | 2631 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,985 psi | 60% | 2513 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 32,721 psi | 53% | 2388 fps | 95.7% |
| ReloadSwiss RS 70 | 36.8 gr | 84% | 34,737 psi | 56% | 2441 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 50,415 psi | 81% | 2566 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,251 psi | 71% | 2493 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,594 psi | 61% | 2425 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 98% | 45,934 psi | 74% | 2635 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 43,337 psi | 70% | 2500 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,693 psi | 56% | 2329 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,615 psi | 75% | 2559 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,119 psi | 68% | 2474 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,726 psi | 64% | 2457 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,421 psi | 62% | 2470 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,572 psi | 77% | 2575 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,672 psi | 74% | 2556 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,718 psi | 77% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,871 psi | 64% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,769 psi | 63% | 2379 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 45,498 psi | 73% | 2631 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 47,065 psi | 76% | 2480 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,239 psi | 76% | 2569 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,159 psi | 62% | 2425 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 28,007 psi | 45% | 2277 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 41,002 psi | 66% | 2516 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 48,080 psi | 78% | 2474 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,990 psi | 71% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,295 psi | 71% | 2477 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,448 psi | 59% | 2365 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 32,372 psi | 52% | 2320 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 49,545 psi | 80% | 2585 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,772 psi | 69% | 2474 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,082 psi | 52% | 2326 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 86% | 29,080 psi | 47% | 2316 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,010 psi | 52% | 2297 fps | 97.8% |
| Winchester 748 | <<locked>> | 80% | 49,603 psi | 80% | 2631 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 40,480 psi | 65% | 2530 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,151 psi | 44% | 2323 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,237 psi | 73% | 2562 fps | 99.9% |
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 99 powders for .25 Creedmoor loaded with the .257 | 128gr | Hornady ELD-X. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,848 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (427 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 128.0 gr projectile in 0.257" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .25 Creedmoor with the .257 | 128gr | Hornady ELD-X 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.