Load Specifications
Bullet:.264 | 120gr | Hornady CX
Bullet Manufacturer:Hornady
Bullet Weight:120 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:1:8.0
Load data in caliber .260 Ackley Improved with .264 | 120gr | Hornady CX bullet and 103 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 Power Pro 2000-MR 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>> | 86% | 54,404 psi | 87% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 56,028 psi | 90% | 2825 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,361 psi | 89% | 2815 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,433 psi | 87% | 2838 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,927 psi | 90% | 2818 fps | 96.5% |
| Accurate 4064 | <<locked>> | 94% | 55,506 psi | 89% | 2864 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,271 psi | 82% | 2881 fps | 99% |
| ADI AR 2206H | <<locked>> | 88% | 53,243 psi | 85% | 2848 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 94% | 54,302 psi | 87% | 2844 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 55,854 psi | 90% | 2851 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 53,055 psi | 85% | 2785 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,056 psi | 87% | 2907 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 53,113 psi | 85% | 2966 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,114 psi | 87% | 2871 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,809 psi | 86% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,853 psi | 88% | 2894 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,183 psi | 80% | 2890 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,998 psi | 88% | 2992 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,360 psi | 57% | 2608 fps | 97% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 55,999 psi | 90% | 2740 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,040 psi | 85% | 2861 fps | 99.2% |
| Bofors RP3 | <<locked>> | 94% | 54,476 psi | 87% | 2884 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,027 psi | 88% | 2848 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,534 psi | 87% | 2789 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,056 psi | 88% | 2881 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,505 psi | 86% | 2927 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 53,171 psi | 85% | 2799 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,317 psi | 87% | 2825 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,666 psi | 89% | 2894 fps | 99.1% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,085 psi | 88% | 2940 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 98% | 55,912 psi | 90% | 2900 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 88% | 53,751 psi | 86% | 2858 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,195 psi | 74% | 2766 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,837 psi | 85% | 2887 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 52,431 psi | 84% | 2917 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 56% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,448 psi | 89% | 2864 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 53,751 psi | 86% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,925 psi | 86% | 2831 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,360 psi | 87% | 2812 fps | 97.1% |
| IMR 4198 | <<locked>> | 82% | 54,476 psi | 87% | 2720 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,634 psi | 83% | 2815 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,679 psi | 86% | 2828 fps | 96.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2828 fps | 98.7% |
| IMR 4895 | <<locked>> | 92% | 56,260 psi | 90% | 2923 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 55,854 psi | 90% | 2851 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,289 psi | 90% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 90% | 56,362 psi | 90% | 2877 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,388 psi | 86% | 2782 fps | 99.7% |
| Lovex S062 | <<locked>> | 92% | 53,447 psi | 86% | 2828 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2871 fps | 98.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2851 fps | 97.2% |
| Norma 201 | <<locked>> | 90% | 55,564 psi | 89% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,130 psi | 90% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,012 psi | 87% | 2881 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 51,097 psi | 82% | 2877 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 92% | 54,636 psi | 88% | 2904 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,227 psi | 81% | 2871 fps | 97.3% |
| Ramshot TAC | <<locked>> | 86% | 52,997 psi | 85% | 2818 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,159 psi | 90% | 2894 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,751 psi | 86% | 2805 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,346 psi | 57% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,521 psi | 89% | 2835 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 94% | 56,420 psi | 90% | 2881 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,187 psi | 88% | 2959 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,433 psi | 87% | 2989 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,155 psi | 82% | 2907 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,866 psi | 83% | 2936 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 88% | 56,014 psi | 90% | 2822 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 55,651 psi | 89% | 2838 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,331 psi | 87% | 2874 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,027 psi | 88% | 2848 fps | 96.7% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 55,999 psi | 90% | 2871 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 90% | 56,362 psi | 90% | 2877 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,447 psi | 86% | 2828 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2851 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,477 psi | 89% | 2808 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 52,794 psi | 85% | 2884 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,984 psi | 88% | 2782 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,607 psi | 88% | 2848 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,419 psi | 89% | 2874 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,114 psi | 87% | 2743 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 53,867 psi | 86% | 2736 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,214 psi | 85% | 2776 fps | 96.9% |
| Somchem S321 | <<locked>> | 84% | 53,737 psi | 86% | 2838 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,098 psi | 85% | 2740 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,128 psi | 87% | 2838 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 54,665 psi | 88% | 2871 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,382 psi | 73% | 2822 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 53,679 psi | 86% | 2707 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,317 psi | 87% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,347 psi | 89% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,200 psi | 85% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,333 psi | 90% | 2851 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,534 psi | 86% | 2874 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 86% | 53,113 psi | 85% | 2802 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,549 psi | 87% | 2822 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,721 psi | 85% | 2881 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,971 psi | 61% | 2687 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,418 psi | 87% | 2858 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,260 psi | 90% | 2900 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,085 psi | 88% | 2940 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,056 psi | 88% | 2877 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% | 44,976 psi | 72% | 2618 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 48,965 psi | 79% | 2723 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,927 psi | 59% | 2526 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,309 psi | 71% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 48,965 psi | 79% | 2707 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 34,954 psi | 56% | 2513 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 35,984 psi | 58% | 2592 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 41,379 psi | 66% | 2638 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 35,244 psi | 57% | 2487 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,526 psi | 70% | 2651 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 42,989 psi | 69% | 2638 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,807 psi | 81% | 2854 fps | 99.8% |
| Alliant Power Pro 2000-MR | 36.9 gr | 80% | 37,260 psi | 60% | 2644 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,389 psi | 55% | 2500 fps | 97.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,647 psi | 81% | 2710 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,144 psi | 60% | 2566 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,738 psi | 59% | 2612 fps | 95.7% |
| Alliant Reloder-17 | 37.3 gr | 82% | 31,749 psi | 51% | 2513 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,212 psi | 50% | 2500 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,620 psi | 84% | 2694 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,393 psi | 65% | 2635 fps | 97% |
| Bofors RP3 | <<locked>> | 80% | 33,547 psi | 54% | 2497 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 48,457 psi | 78% | 2740 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,179 psi | 72% | 2638 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,742 psi | 67% | 2661 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,238 psi | 74% | 2805 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 49,632 psi | 80% | 2746 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,444 psi | 81% | 2769 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,173 psi | 60% | 2559 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 94% | 44,875 psi | 72% | 2766 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 96% | 52,707 psi | 85% | 2851 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 41,756 psi | 67% | 2648 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,415 psi | 50% | 2451 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,492 psi | 60% | 2612 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 96% | 48,588 psi | 78% | 2848 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,962 psi | 42% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,248 psi | 65% | 2602 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 41,002 psi | 66% | 2648 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,970 psi | 59% | 2520 fps | 96.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 44,991 psi | 72% | 2651 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 51,256 psi | 82% | 2677 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,312 psi | 77% | 2759 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,471 psi | 76% | 2723 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 35,085 psi | 56% | 2552 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 38,058 psi | 61% | 2598 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 80% | 43,526 psi | 70% | 2651 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 48,820 psi | 78% | 2733 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,842 psi | 64% | 2612 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 41,669 psi | 67% | 2575 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 36,434 psi | 58% | 2520 fps | 98.3% |
| Lovex S065 | <<locked>> | 90% | 41,104 psi | 66% | 2612 fps | 95.5% |
| Lovex S070 | <<locked>> | 94% | 44,019 psi | 71% | 2690 fps | 95% |
| Norma 201 | <<locked>> | 80% | 40,263 psi | 65% | 2589 fps | 99% |
| Norma 202 | <<locked>> | 80% | 40,611 psi | 65% | 2602 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,521 psi | 59% | 2556 fps | 97.1% |
| Norma URP | <<locked>> | 90% | 36,666 psi | 59% | 2598 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 35,853 psi | 57% | 2559 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 96% | 43,976 psi | 71% | 2756 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 43,381 psi | 70% | 2648 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,496 psi | 68% | 2664 fps | 98.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,963 psi | 75% | 2697 fps | 99% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,136 psi | 42% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,950 psi | 78% | 2736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,366 psi | 70% | 2657 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,624 psi | 62% | 2664 fps | 97.1% |
| ReloadSwiss RS 60 | 36.4 gr | 80% | 31,662 psi | 51% | 2523 fps | 98.1% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,114 psi | 58% | 2615 fps | 95.1% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,320 psi | 63% | 2684 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 43,903 psi | 70% | 2631 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,232 psi | 61% | 2536 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 31,647 psi | 51% | 2441 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 94% | 48,457 psi | 78% | 2740 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,104 psi | 66% | 2612 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,842 psi | 64% | 2612 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 36,434 psi | 58% | 2520 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 94% | 44,019 psi | 71% | 2690 fps | 95% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,488 psi | 83% | 2749 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,866 psi | 53% | 2493 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,721 psi | 83% | 2736 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,336 psi | 66% | 2618 fps | 96.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,856 psi | 64% | 2602 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,018 psi | 67% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,664 psi | 56% | 2418 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,267 psi | 74% | 2664 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 46,746 psi | 75% | 2726 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,408 psi | 66% | 2552 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,147 psi | 66% | 2618 fps | 98.1% |
| Somchem S355 | <<locked>> | 80% | 32,648 psi | 52% | 2451 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 28,631 psi | 46% | 2434 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 47,616 psi | 76% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,322 psi | 68% | 2549 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,652 psi | 60% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,464 psi | 62% | 2539 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,082 psi | 50% | 2392 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 35,853 psi | 57% | 2546 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 43,265 psi | 69% | 2641 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,883 psi | 59% | 2523 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 37,826 psi | 61% | 2605 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 96% | 33,272 psi | 53% | 2575 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,792 psi | 51% | 2421 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 42,830 psi | 69% | 2687 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 44,875 psi | 72% | 2766 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,320 psi | 63% | 2608 fps | 98.3% |
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 103 powders for .260 Ackley Improved loaded with the .264 | 120gr | Hornady CX. Alliant Reloder-17 delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,992 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.264" calls for a 1:8.0 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 Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for .260 Ackley Improved with the .264 | 120gr | Hornady CX 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.