Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:131 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 | 131gr | Sierra Hollow Point Boat Tail bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 55,796 psi | 90% | 2569 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,172 psi | 89% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,461 psi | 86% | 2608 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,614 psi | 74% | 2582 fps | 98.2% |
| Accurate 4064 | <<locked>> | 88% | 55,245 psi | 89% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,100 psi | 89% | 2743 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 54,839 psi | 88% | 2674 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,898 psi | 90% | 2677 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,837 psi | 85% | 2720 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,867 psi | 87% | 2625 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,230 psi | 89% | 2595 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,795 psi | 88% | 2799 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,982 psi | 85% | 2654 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,519 psi | 86% | 2677 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,101 psi | 90% | 2795 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,548 psi | 86% | 2772 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,127 psi | 84% | 2713 fps | 97.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,585 psi | 74% | 2651 fps | 95.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,120 psi | 70% | 2608 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,753 psi | 61% | 2513 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,530 psi | 78% | 2776 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,781 psi | 88% | 2694 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 53,548 psi | 86% | 2667 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,585 psi | 74% | 2651 fps | 95.8% |
| Bofors RP7 | <<locked>> | 92% | 53,185 psi | 86% | 2644 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,448 psi | 89% | 2608 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,272 psi | 86% | 2654 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,259 psi | 88% | 2684 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 54,099 psi | 87% | 2740 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 92% | 54,650 psi | 88% | 2703 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 84% | 55,463 psi | 89% | 2684 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,956 psi | 90% | 2717 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,071 psi | 89% | 2717 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,201 psi | 87% | 2776 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,897 psi | 58% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,185 psi | 86% | 2638 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,709 psi | 90% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,448 psi | 89% | 2661 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,129 psi | 89% | 2648 fps | 98.8% |
| IMR 4350 | <<locked>> | 96% | 53,795 psi | 87% | 2674 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,172 psi | 89% | 2677 fps | 98.8% |
| IMR 4831 | <<locked>> | 98% | 55,637 psi | 90% | 2733 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,911 psi | 89% | 2703 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,867 psi | 87% | 2625 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,013 psi | 89% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,346 psi | 88% | 2605 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,521 psi | 90% | 2657 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,607 psi | 88% | 2667 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 55,869 psi | 90% | 2707 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,782 psi | 61% | 2441 fps | 96.4% |
| Norma 201 | <<locked>> | 84% | 53,882 psi | 87% | 2625 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,520 psi | 88% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,043 psi | 90% | 2710 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,230 psi | 87% | 2720 fps | 97.3% |
| Norma MRPᴾ | <<locked>> | 100% | 48,240 psi | 78% | 2730 fps | 97.9% |
| Norma URP | <<locked>> | 96% | 54,128 psi | 87% | 2730 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 53,069 psi | 86% | 2687 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 52,678 psi | 85% | 2726 fps | 99.2% |
| Ramshot TAC | <<locked>> | 82% | 54,012 psi | 87% | 2651 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,577 psi | 86% | 2664 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,564 psi | 59% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,520 psi | 88% | 2671 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,056 psi | 87% | 2740 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,156 psi | 86% | 2766 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,723 psi | 88% | 2762 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,824 psi | 87% | 2789 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 54,781 psi | 88% | 2602 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,433 psi | 88% | 2625 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,417 psi | 86% | 2661 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,940 psi | 89% | 2697 fps | 96.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,068 psi | 82% | 2700 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 92% | 53,185 psi | 86% | 2644 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,607 psi | 88% | 2667 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,013 psi | 89% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,521 psi | 90% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,869 psi | 90% | 2707 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,911 psi | 89% | 2720 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,576 psi | 85% | 2631 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,476 psi | 86% | 2651 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,853 psi | 88% | 2559 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,492 psi | 90% | 2562 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,940 psi | 89% | 2628 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,575 psi | 82% | 2694 fps | 97% |
| Somchem S335 | <<locked>> | 84% | 54,650 psi | 88% | 2559 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,840 psi | 90% | 2671 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,650 psi | 87% | 2657 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,767 psi | 90% | 2772 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,532 psi | 83% | 2674 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 84% | 55,259 psi | 89% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,273 psi | 88% | 2582 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,984 psi | 89% | 2602 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,839 psi | 88% | 2635 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 52,968 psi | 85% | 2674 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,599 psi | 72% | 2549 fps | 96% |
| Vihtavuori N530 | <<locked>> | 82% | 54,346 psi | 88% | 2625 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,866 psi | 85% | 2598 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,506 psi | 90% | 2730 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2680 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,823 psi | 85% | 2651 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,505 psi | 88% | 2674 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,099 psi | 87% | 2740 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,508 psi | 62% | 2635 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,185 psi | 86% | 2657 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,341 psi | 78% | 2612 fps | 96.1% |
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% | 52,460 psi | 85% | 2526 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,237 psi | 73% | 2464 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,976 psi | 71% | 2454 fps | 96% |
| Accurate 3100 | <<locked>> | 92% | 34,519 psi | 56% | 2372 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,830 psi | 69% | 2467 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,981 psi | 52% | 2323 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,660 psi | 78% | 2582 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 41,292 psi | 67% | 2441 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 96% | 46,644 psi | 75% | 2615 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,734 psi | 82% | 2582 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,779 psi | 84% | 2556 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,411 psi | 72% | 2625 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,162 psi | 66% | 2464 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,266 psi | 71% | 2526 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,039 psi | 52% | 2336 fps | 96.3% |
| Alliant Reloder-17 | 34.9 gr | 80% | 35,723 psi | 58% | 2451 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,832 psi | 74% | 2608 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,873 psi | 69% | 2598 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,353 psi | 43% | 2205 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,533 psi | 54% | 2408 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,792 psi | 51% | 2415 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,921 psi | 77% | 2592 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 41,031 psi | 66% | 2470 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 42,873 psi | 69% | 2598 fps | 95% |
| Bofors RP7 | <<locked>> | 84% | 41,742 psi | 67% | 2448 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,257 psi | 84% | 2562 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,748 psi | 80% | 2605 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,785 psi | 67% | 2477 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 38,783 psi | 63% | 2470 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 42,279 psi | 68% | 2493 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 49,124 psi | 79% | 2592 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,530 psi | 48% | 2241 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,063 psi | 73% | 2566 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,756 psi | 66% | 2536 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 43% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,065 psi | 76% | 2546 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,994 psi | 79% | 2569 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,395 psi | 70% | 2474 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,774 psi | 74% | 2497 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 39,523 psi | 64% | 2428 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,319 psi | 62% | 2379 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 30,879 psi | 50% | 2280 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,353 psi | 73% | 2552 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 50,734 psi | 82% | 2582 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,240 psi | 78% | 2559 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,240 psi | 78% | 2516 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,526 psi | 70% | 2477 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,650 psi | 57% | 2329 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 38,334 psi | 62% | 2408 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 35,389 psi | 57% | 2388 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 47,369 psi | 76% | 2530 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,863 psi | 77% | 2530 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,613 psi | 70% | 2516 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 44,295 psi | 71% | 2556 fps | 95% |
| Norma MRP | <<locked>> | 94% | 39,436 psi | 64% | 2559 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 32,155 psi | 52% | 2323 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 80% | 43,192 psi | 70% | 2530 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,737 psi | 58% | 2415 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 50,589 psi | 82% | 2598 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,140 psi | 81% | 2612 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,151 psi | 44% | 1486 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,989 psi | 68% | 2461 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,833 psi | 76% | 2628 fps | 99.8% |
| ReloadSwiss RS 60 | 34.9 gr | 80% | 38,014 psi | 61% | 2510 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,415 psi | 51% | 2333 fps | 95.5% |
| ReloadSwiss RS 70 | 36.3 gr | 82% | 33,547 psi | 54% | 2392 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 51,634 psi | 83% | 2556 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,382 psi | 73% | 2487 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,711 psi | 62% | 2421 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 98% | 51,605 psi | 83% | 2648 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 96% | 44,570 psi | 72% | 2589 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 41,742 psi | 67% | 2448 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,650 psi | 57% | 2329 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,240 psi | 78% | 2559 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,526 psi | 70% | 2477 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 38,334 psi | 62% | 2408 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,494 psi | 64% | 2464 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,110 psi | 79% | 2579 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,775 psi | 75% | 2549 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,834 psi | 79% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,915 psi | 66% | 2356 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,333 psi | 60% | 2329 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 44,150 psi | 71% | 2582 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,138 psi | 78% | 2470 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,776 psi | 79% | 2569 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,233 psi | 63% | 2421 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 28,892 psi | 47% | 2280 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 39,943 psi | 64% | 2474 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 49,240 psi | 79% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,237 psi | 73% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,440 psi | 73% | 2470 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,449 psi | 60% | 2362 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,576 psi | 54% | 2326 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 98% | 41,568 psi | 67% | 2493 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 50,734 psi | 82% | 2575 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,830 psi | 71% | 2464 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,025 psi | 53% | 2326 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 28,210 psi | 45% | 2270 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,054 psi | 53% | 2303 fps | 98.4% |
| Winchester 748 | <<locked>> | 80% | 50,865 psi | 82% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,102 psi | 63% | 2477 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,295 psi | 42% | 2277 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,760 psi | 75% | 2559 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,281 psi | 73% | 2562 fps | 95.4% |
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 104 powders for .25 Creedmoor loaded with the .257 | 131gr | Sierra Hollow Point Boat Tail. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,799 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 131.0 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 Reloder-19 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .25 Creedmoor with the .257 | 131gr | Sierra Hollow Point Boat Tail 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.