Load Specifications
Bullet Manufacturer:Hornady
Bullet Weight:140 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Caliber:.260 Ackley Improved load data
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:56 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:6.0
Load data in caliber .260 Ackley Improved with .264 | 140gr | Hornady ELD Match 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, 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.
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% | 55,550 psi | 89% | 2556 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,723 psi | 88% | 2589 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,985 psi | 90% | 2648 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,330 psi | 86% | 2598 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,237 psi | 73% | 2569 fps | 98.1% |
| Accurate 4064 | <<locked>> | 88% | 55,013 psi | 88% | 2638 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,636 psi | 88% | 2726 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 54,853 psi | 88% | 2667 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,579 psi | 89% | 2667 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,939 psi | 85% | 2713 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,679 psi | 86% | 2615 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,868 psi | 88% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,433 psi | 87% | 2785 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,504 psi | 84% | 2710 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,217 psi | 90% | 2690 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,953 psi | 85% | 2661 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,767 psi | 89% | 2782 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,534 psi | 86% | 2762 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,721 psi | 83% | 2700 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,975 psi | 69% | 2598 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,753 psi | 61% | 2507 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2762 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,534 psi | 87% | 2684 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 53,069 psi | 85% | 2654 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 52,997 psi | 85% | 2635 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,998 psi | 88% | 2595 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,939 psi | 85% | 2644 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,085 psi | 87% | 2674 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 53,635 psi | 86% | 2723 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 92% | 54,215 psi | 87% | 2687 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 84% | 55,477 psi | 89% | 2677 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2707 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,839 psi | 88% | 2707 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,186 psi | 87% | 2766 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 57% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,333 psi | 90% | 2674 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,564 psi | 89% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,317 psi | 89% | 2651 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,853 psi | 88% | 2635 fps | 98.8% |
| IMR 4350 | <<locked>> | 96% | 53,461 psi | 86% | 2664 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,897 psi | 88% | 2664 fps | 98.7% |
| IMR 4831 | <<locked>> | 98% | 55,114 psi | 88% | 2720 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 54,331 psi | 87% | 2687 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,679 psi | 86% | 2615 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,766 psi | 88% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,215 psi | 87% | 2598 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,390 psi | 89% | 2648 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,636 psi | 88% | 2661 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 55,593 psi | 89% | 2697 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,565 psi | 60% | 2428 fps | 96.3% |
| Norma 201 | <<locked>> | 84% | 53,722 psi | 86% | 2615 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,230 psi | 87% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,666 psi | 89% | 2697 fps | 100% |
| Norma 204 | <<locked>> | 96% | 53,896 psi | 86% | 2710 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 47,819 psi | 77% | 2717 fps | 97.8% |
| Norma URP | <<locked>> | 96% | 53,795 psi | 86% | 2717 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 52,692 psi | 84% | 2674 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,898 psi | 90% | 2766 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 53,621 psi | 86% | 2638 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,621 psi | 86% | 2654 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,434 psi | 58% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,186 psi | 87% | 2657 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,737 psi | 86% | 2726 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 52,924 psi | 85% | 2756 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,621 psi | 88% | 2756 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,592 psi | 86% | 2779 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 54,607 psi | 88% | 2592 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,172 psi | 87% | 2615 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,301 psi | 85% | 2651 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,679 psi | 88% | 2687 fps | 96.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2687 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 52,997 psi | 85% | 2635 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,636 psi | 88% | 2661 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,766 psi | 88% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,390 psi | 89% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,593 psi | 89% | 2697 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,781 psi | 88% | 2710 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,086 psi | 90% | 2674 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,258 psi | 85% | 2641 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,969 psi | 88% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,376 psi | 89% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,723 psi | 88% | 2618 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,270 psi | 81% | 2680 fps | 96.9% |
| Somchem S335 | <<locked>> | 84% | 54,447 psi | 87% | 2552 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,593 psi | 89% | 2657 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,272 psi | 85% | 2648 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,811 psi | 89% | 2766 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,430 psi | 82% | 2667 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 84% | 55,347 psi | 89% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,143 psi | 87% | 2575 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,447 psi | 87% | 2589 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,592 psi | 88% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,999 psi | 90% | 2710 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,251 psi | 71% | 2536 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 82% | 54,085 psi | 87% | 2615 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,318 psi | 90% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,303 psi | 89% | 2720 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,384 psi | 76% | 2664 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,231 psi | 90% | 2690 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,302 psi | 87% | 2664 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,027 psi | 87% | 2730 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,261 psi | 61% | 2621 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,113 psi | 85% | 2648 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,124 psi | 77% | 2602 fps | 96% |
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% | 52,431 psi | 84% | 2516 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,049 psi | 72% | 2454 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,460 psi | 84% | 2602 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,743 psi | 70% | 2441 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 34,519 psi | 55% | 2365 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,627 psi | 68% | 2457 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,676 psi | 51% | 2310 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,298 psi | 77% | 2569 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,162 psi | 66% | 2431 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 46,383 psi | 74% | 2602 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,372 psi | 81% | 2569 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,648 psi | 83% | 2546 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,280 psi | 71% | 2615 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,122 psi | 74% | 2602 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,944 psi | 66% | 2451 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,918 psi | 70% | 2513 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,908 psi | 51% | 2323 fps | 96.2% |
| Alliant Reloder-17 | 36.9 gr | 80% | 35,447 psi | 57% | 2441 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,498 psi | 73% | 2592 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,223 psi | 42% | 2195 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,447 psi | 57% | 2451 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,618 psi | 51% | 2402 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,732 psi | 77% | 2579 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 40,944 psi | 66% | 2461 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,553 psi | 67% | 2438 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,040 psi | 83% | 2552 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,617 psi | 80% | 2595 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,626 psi | 67% | 2467 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 38,609 psi | 62% | 2461 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 84% | 42,221 psi | 68% | 2484 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,762 psi | 78% | 2579 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,414 psi | 47% | 2231 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,092 psi | 72% | 2559 fps | 100% |
| Hodgdon Superformance | 42 gr | 86% | 40,799 psi | 65% | 2530 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 43% | 1447 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,760 psi | 75% | 2533 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 48,834 psi | 78% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,250 psi | 69% | 2464 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,687 psi | 73% | 2487 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 41,742 psi | 67% | 2464 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,087 psi | 61% | 2369 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 30,879 psi | 50% | 2277 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,005 psi | 72% | 2543 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 50,372 psi | 81% | 2569 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,022 psi | 77% | 2549 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,747 psi | 77% | 2500 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 43,091 psi | 69% | 2461 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,491 psi | 57% | 2320 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 38,406 psi | 62% | 2402 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 35,331 psi | 57% | 2382 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 47,181 psi | 76% | 2516 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,630 psi | 76% | 2520 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,279 psi | 69% | 2503 fps | 99.7% |
| Norma 204 | <<locked>> | 92% | 47,224 psi | 76% | 2602 fps | 95.8% |
| Norma MRP | <<locked>> | 94% | 39,262 psi | 63% | 2549 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,923 psi | 51% | 2310 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 43,062 psi | 69% | 2520 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,549 psi | 57% | 2402 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 50,415 psi | 81% | 2589 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,009 psi | 80% | 2602 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,224 psi | 44% | 1483 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,727 psi | 67% | 2451 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,934 psi | 75% | 2621 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,724 psi | 60% | 2497 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,415 psi | 50% | 2326 fps | 95.5% |
| ReloadSwiss RS 70 | 38.4 gr | 82% | 33,315 psi | 53% | 2379 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 51,242 psi | 82% | 2546 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,933 psi | 72% | 2474 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,464 psi | 62% | 2408 fps | 99.4% |
| Rottweil R 904 | <<locked>> | 98% | 51,184 psi | 82% | 2635 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 96% | 44,309 psi | 71% | 2579 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 41,553 psi | 67% | 2438 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,491 psi | 57% | 2320 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,022 psi | 77% | 2549 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,091 psi | 69% | 2461 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 38,406 psi | 62% | 2402 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,581 psi | 63% | 2461 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,965 psi | 79% | 2569 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,920 psi | 75% | 2546 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,515 psi | 78% | 2464 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,625 psi | 65% | 2343 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,450 psi | 63% | 2365 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,888 psi | 70% | 2572 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 48,008 psi | 77% | 2464 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,602 psi | 78% | 2559 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,059 psi | 63% | 2411 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 28,660 psi | 46% | 2270 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 39,537 psi | 63% | 2457 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 48,921 psi | 78% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,904 psi | 72% | 2448 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,194 psi | 72% | 2461 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,217 psi | 60% | 2349 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,330 psi | 53% | 2313 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 41,437 psi | 66% | 2484 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 50,633 psi | 81% | 2566 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,700 psi | 70% | 2457 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,909 psi | 53% | 2316 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 28,065 psi | 45% | 2260 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,924 psi | 53% | 2293 fps | 98.4% |
| Winchester 748 | <<locked>> | 80% | 50,894 psi | 82% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 38,899 psi | 62% | 2467 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,136 psi | 42% | 2264 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,369 psi | 74% | 2546 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,933 psi | 72% | 2549 fps | 95.2% |
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 .260 Ackley Improved loaded with the .264 | 140gr | Hornady ELD Match. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,785 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,785 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 (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:6.0 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 .260 Ackley Improved with the .264 | 140gr | Hornady ELD Match 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.