Load Specifications
Bullet Manufacturer:SAKO
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:1:8.5
Load data in caliber .260 Ackley Improved with .264 | 120gr | Sako Powerhead Blade bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 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% | 54,824 psi | 88% | 2766 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 53,185 psi | 85% | 2789 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,231 psi | 90% | 2828 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 55,201 psi | 89% | 2854 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,924 psi | 85% | 2779 fps | 96.1% |
| Accurate 4064 | <<locked>> | 94% | 56,289 psi | 90% | 2877 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 52,402 psi | 84% | 2900 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 88% | 53,983 psi | 87% | 2864 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 54,955 psi | 88% | 2858 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 53,098 psi | 85% | 2815 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 53,563 psi | 86% | 2795 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,955 psi | 88% | 2923 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 53,722 psi | 86% | 2979 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,810 psi | 88% | 2884 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,752 psi | 88% | 2772 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 55,535 psi | 89% | 2907 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,763 psi | 81% | 2904 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 98% | 55,564 psi | 89% | 3005 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,795 psi | 57% | 2625 fps | 97.3% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 54,041 psi | 87% | 2881 fps | 99.4% |
| Bofors RP3 | <<locked>> | 94% | 55,187 psi | 88% | 2897 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,637 psi | 89% | 2861 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 86% | 55,245 psi | 89% | 2802 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,738 psi | 89% | 2894 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 54,273 psi | 87% | 2943 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 53,635 psi | 86% | 2812 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 55,056 psi | 88% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 53,069 psi | 85% | 2858 fps | 98.9% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2953 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 88% | 54,491 psi | 87% | 2874 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 47,123 psi | 76% | 2789 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 53,940 psi | 86% | 2910 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 53,200 psi | 85% | 2933 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,056 psi | 56% | 1739 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,159 psi | 90% | 2881 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 54,201 psi | 87% | 2858 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,636 psi | 88% | 2844 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,984 psi | 88% | 2825 fps | 97.3% |
| IMR 4198 | <<locked>> | 82% | 55,013 psi | 88% | 2733 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 52,199 psi | 84% | 2831 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 96% | 54,273 psi | 87% | 2844 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,647 psi | 80% | 2838 fps | 98.9% |
| IMR 4895 | <<locked>> | 90% | 53,345 psi | 86% | 2884 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 53,098 psi | 85% | 2815 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,968 psi | 85% | 2799 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 53,374 psi | 86% | 2838 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 54,070 psi | 87% | 2795 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 54,186 psi | 87% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 53,374 psi | 86% | 2835 fps | 98.3% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,998 psi | 87% | 2867 fps | 97.4% |
| Norma 201 | <<locked>> | 90% | 55,912 psi | 90% | 2858 fps | 100% |
| Norma 202 | <<locked>> | 88% | 53,301 psi | 85% | 2815 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,694 psi | 88% | 2894 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 51,750 psi | 83% | 2890 fps | 99% |
| Ramshot Big Game | <<locked>> | 92% | 55,259 psi | 89% | 2917 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,734 psi | 81% | 2884 fps | 97.5% |
| Ramshot TAC | <<locked>> | 86% | 53,592 psi | 86% | 2831 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 52,866 psi | 85% | 2851 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 54,404 psi | 87% | 2822 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,462 psi | 57% | 1781 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 56,289 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 53,432 psi | 86% | 2838 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,970 psi | 90% | 2976 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 55,477 psi | 89% | 3009 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 52,127 psi | 84% | 2923 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 52,678 psi | 84% | 2956 fps | 98.8% |
| Rottweil R 901 | <<locked>> | 86% | 53,650 psi | 86% | 2795 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,347 psi | 90% | 2854 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 55,042 psi | 88% | 2887 fps | 100% |
| Rottweil R 907 | <<locked>> | 98% | 55,637 psi | 89% | 2861 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 98% | 53,374 psi | 86% | 2835 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 53,374 psi | 86% | 2838 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 54,186 psi | 87% | 2841 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,998 psi | 87% | 2867 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,825 psi | 90% | 2818 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 53,417 psi | 86% | 2897 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,521 psi | 89% | 2792 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 55,230 psi | 89% | 2861 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 56,086 psi | 90% | 2887 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,505 psi | 87% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,592 psi | 88% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,780 psi | 86% | 2789 fps | 97.1% |
| Somchem S321 | <<locked>> | 84% | 54,447 psi | 87% | 2851 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,795 psi | 86% | 2753 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 55,158 psi | 88% | 2858 fps | 99.8% |
| Somchem S355 | <<locked>> | 96% | 55,332 psi | 89% | 2884 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,992 psi | 74% | 2835 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 54,520 psi | 87% | 2720 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,708 psi | 88% | 2740 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 56,159 psi | 90% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,925 psi | 86% | 2795 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 53,635 psi | 86% | 2818 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,563 psi | 87% | 2890 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 86% | 53,882 psi | 86% | 2818 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 55,608 psi | 89% | 2838 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2890 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,566 psi | 62% | 2703 fps | 97.2% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 55,245 psi | 89% | 2874 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 53,330 psi | 86% | 2864 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 56,072 psi | 90% | 2959 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,695 psi | 89% | 2894 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% | 45,440 psi | 73% | 2628 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,719 psi | 80% | 2740 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,405 psi | 60% | 2536 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,686 psi | 72% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,545 psi | 79% | 2723 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 35,418 psi | 57% | 2523 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 36,608 psi | 59% | 2612 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 41,800 psi | 67% | 2648 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 35,607 psi | 57% | 2497 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,903 psi | 70% | 2661 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 43,888 psi | 70% | 2654 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 51,300 psi | 82% | 2864 fps | 99.9% |
| Alliant Power Pro 2000-MR | 37.4 gr | 80% | 37,855 psi | 61% | 2667 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,766 psi | 56% | 2513 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 51,155 psi | 82% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,536 psi | 60% | 2575 fps | 96.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 34,896 psi | 56% | 2569 fps | 95.1% |
| Alliant Reloder-17 | 37.7 gr | 82% | 31,995 psi | 51% | 2523 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 31,618 psi | 51% | 2513 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,017 psi | 66% | 2651 fps | 97.2% |
| Bofors RP3 | <<locked>> | 80% | 34,229 psi | 55% | 2513 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 49,081 psi | 79% | 2756 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,905 psi | 74% | 2654 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,424 psi | 68% | 2677 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,992 psi | 75% | 2822 fps | 98.9% |
| Hodgdon H322 | <<locked>> | 80% | 50,473 psi | 81% | 2762 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 51,169 psi | 82% | 2785 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,840 psi | 61% | 2575 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 45,455 psi | 73% | 2782 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 42,134 psi | 68% | 2661 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,923 psi | 51% | 2467 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,189 psi | 61% | 2628 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 96% | 49,385 psi | 79% | 2867 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,889 psi | 42% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,596 psi | 65% | 2615 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 41,495 psi | 67% | 2657 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,362 psi | 60% | 2533 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,281 psi | 73% | 2657 fps | 95.1% |
| IMR 4198 | <<locked>> | 80% | 51,764 psi | 83% | 2687 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 49,197 psi | 79% | 2779 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 45,078 psi | 72% | 2684 fps | 95% |
| IMR 4831 | <<locked>> | 90% | 35,418 psi | 57% | 2562 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,435 psi | 62% | 2608 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 80% | 43,903 psi | 70% | 2661 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 49,574 psi | 79% | 2746 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,582 psi | 65% | 2628 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 42,322 psi | 68% | 2595 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 37,115 psi | 60% | 2536 fps | 98.5% |
| Lovex S065 | <<locked>> | 90% | 41,379 psi | 66% | 2625 fps | 95.7% |
| Lovex S070 | <<locked>> | 94% | 44,614 psi | 72% | 2707 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 40,654 psi | 65% | 2598 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 41,031 psi | 66% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 80% | 36,912 psi | 59% | 2566 fps | 97.3% |
| Norma URP | <<locked>> | 90% | 37,246 psi | 60% | 2618 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 36,463 psi | 58% | 2579 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 41,640 psi | 67% | 2713 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 43,976 psi | 71% | 2664 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,178 psi | 69% | 2680 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,616 psi | 76% | 2713 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,339 psi | 42% | 1591 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,371 psi | 79% | 2746 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,918 psi | 70% | 2674 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,363 psi | 63% | 2680 fps | 97.4% |
| ReloadSwiss RS 60 | 36.8 gr | 80% | 31,937 psi | 51% | 2536 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 36,622 psi | 59% | 2631 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 39,740 psi | 64% | 2700 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 44,701 psi | 72% | 2651 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,943 psi | 62% | 2556 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 32,053 psi | 51% | 2454 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 94% | 49,081 psi | 79% | 2756 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,379 psi | 66% | 2625 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,582 psi | 65% | 2628 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,115 psi | 60% | 2536 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 44,614 psi | 72% | 2707 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 52,243 psi | 84% | 2766 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,446 psi | 54% | 2510 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 52,228 psi | 84% | 2746 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,974 psi | 67% | 2635 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,524 psi | 65% | 2618 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,453 psi | 68% | 2566 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,070 psi | 56% | 2428 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,891 psi | 75% | 2677 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 47,442 psi | 76% | 2743 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 41,800 psi | 67% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,742 psi | 67% | 2635 fps | 98.3% |
| Somchem S355 | <<locked>> | 80% | 33,040 psi | 53% | 2464 fps | 96.5% |
| Somchem S365 | <<locked>> | 84% | 27,209 psi | 44% | 2392 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 48,109 psi | 77% | 2631 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,757 psi | 69% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,130 psi | 61% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,841 psi | 62% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,415 psi | 50% | 2405 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 88% | 36,448 psi | 58% | 2562 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,947 psi | 70% | 2657 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 37,507 psi | 60% | 2536 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 35,882 psi | 58% | 2566 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 96% | 33,808 psi | 54% | 2592 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,994 psi | 48% | 2379 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 43,540 psi | 70% | 2703 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 45,803 psi | 73% | 2789 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,653 psi | 64% | 2618 fps | 98.4% |
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 101 powders for .260 Ackley Improved loaded with the .264 | 120gr | Sako Powerhead Blade. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,739 fps to 3,009 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 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 1:8.5 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .260 Ackley Improved with the .264 | 120gr | Sako Powerhead Blade 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.