Load Specifications
Load data in caliber .260 Ackley Improved with .264 | 119gr | Lehigh Defense Match Solid 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% | 54,375 psi | 87% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 52,895 psi | 85% | 2782 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 55,854 psi | 90% | 2818 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,505 psi | 87% | 2841 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,985 psi | 90% | 2815 fps | 96.3% |
| Accurate 4064 | <<locked>> | 94% | 55,898 psi | 90% | 2867 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,561 psi | 83% | 2884 fps | 98.9% |
| ADI AR 2206H | <<locked>> | 88% | 53,592 psi | 86% | 2851 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 94% | 54,563 psi | 87% | 2848 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,115 psi | 90% | 2854 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,794 psi | 85% | 2782 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,186 psi | 87% | 2907 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 56,318 psi | 90% | 3015 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,143 psi | 87% | 2867 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 53,998 psi | 87% | 2759 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,868 psi | 88% | 2890 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,198 psi | 80% | 2887 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,679 psi | 88% | 2986 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,723 psi | 57% | 2615 fps | 96.8% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,202 psi | 90% | 2743 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 52,997 psi | 85% | 2858 fps | 99.1% |
| Bofors RP3 | <<locked>> | 94% | 54,621 psi | 88% | 2884 fps | 100% |
| Bofors RP7 | <<locked>> | 98% | 55,143 psi | 88% | 2848 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,737 psi | 88% | 2792 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,085 psi | 88% | 2881 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,301 psi | 85% | 2923 fps | 99.5% |
| Hodgdon H322 | <<locked>> | 82% | 53,301 psi | 85% | 2802 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,186 psi | 87% | 2825 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 55,753 psi | 89% | 2894 fps | 99% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,737 psi | 88% | 2933 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 98% | 55,941 psi | 90% | 2897 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 88% | 54,070 psi | 87% | 2861 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,253 psi | 74% | 2766 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 56,405 psi | 90% | 2940 fps | 100% |
| Hodgdon Superformanceᴾ | <<locked>> | 100% | 55,970 psi | 90% | 2969 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,143 psi | 56% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,274 psi | 89% | 2864 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 53,534 psi | 86% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 53,809 psi | 86% | 2828 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,273 psi | 87% | 2805 fps | 96.8% |
| IMR 4198 | <<locked>> | 82% | 54,302 psi | 87% | 2720 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 51,706 psi | 83% | 2815 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,650 psi | 86% | 2825 fps | 96.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,805 psi | 78% | 2822 fps | 98.5% |
| IMR 4895 | <<locked>> | 92% | 56,246 psi | 90% | 2923 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 88% | 56,115 psi | 90% | 2854 fps | 100% |
| Lovex D073.5 | <<locked>> | 84% | 56,434 psi | 90% | 2841 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,750 psi | 85% | 2825 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,621 psi | 86% | 2782 fps | 99.7% |
| Lovex S062 | <<locked>> | 92% | 53,505 psi | 86% | 2828 fps | 100% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,115 psi | 90% | 2871 fps | 98.4% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2848 fps | 97% |
| Norma 201 | <<locked>> | 90% | 55,593 psi | 89% | 2844 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,028 psi | 90% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 92% | 54,027 psi | 87% | 2877 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 50,792 psi | 81% | 2871 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 92% | 54,157 psi | 87% | 2900 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,009 psi | 80% | 2864 fps | 97.1% |
| Ramshot TAC | <<locked>> | 86% | 53,011 psi | 85% | 2815 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 88% | 56,115 psi | 90% | 2894 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,708 psi | 86% | 2805 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 57% | 1775 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,767 psi | 89% | 2838 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,881 psi | 85% | 2822 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 55,042 psi | 88% | 2956 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,462 psi | 87% | 2989 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,952 psi | 82% | 2900 fps | 98.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,663 psi | 83% | 2927 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 86% | 53,417 psi | 86% | 2782 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,144 psi | 90% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,476 psi | 87% | 2874 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 55,143 psi | 88% | 2848 fps | 96.4% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,115 psi | 90% | 2871 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,750 psi | 85% | 2825 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,505 psi | 86% | 2828 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2848 fps | 97% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,361 psi | 89% | 2805 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 56,014 psi | 90% | 2933 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 54,955 psi | 88% | 2782 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,737 psi | 88% | 2848 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,376 psi | 89% | 2874 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 53,969 psi | 87% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,128 psi | 87% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,011 psi | 85% | 2769 fps | 96.6% |
| Somchem S321 | <<locked>> | 84% | 53,795 psi | 86% | 2838 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,461 psi | 86% | 2743 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,114 psi | 87% | 2838 fps | 99.7% |
| Somchem S355 | <<locked>> | 96% | 54,737 psi | 88% | 2871 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,571 psi | 73% | 2825 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 53,824 psi | 86% | 2707 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,070 psi | 87% | 2726 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,651 psi | 89% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,127 psi | 85% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 56,376 psi | 90% | 2851 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,577 psi | 86% | 2871 fps | 99% |
| Vihtavuori N530 | <<locked>> | 86% | 52,982 psi | 85% | 2802 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 54,607 psi | 88% | 2822 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,431 psi | 84% | 2874 fps | 98.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,319 psi | 61% | 2690 fps | 96.9% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,636 psi | 88% | 2858 fps | 100% |
| Winchester 748 | <<locked>> | 88% | 56,115 psi | 90% | 2900 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,129 psi | 88% | 2940 fps | 97.2% |
| Winchester StaBALL Match | <<locked>> | 90% | 54,984 psi | 88% | 2877 fps | 99.9% |
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% | 45,339 psi | 73% | 2621 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,472 psi | 79% | 2730 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,768 psi | 61% | 2536 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,440 psi | 71% | 2684 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 52,373 psi | 84% | 2759 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 35,708 psi | 57% | 2523 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,303 psi | 58% | 2598 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 41,698 psi | 67% | 2641 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 35,520 psi | 57% | 2487 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,743 psi | 70% | 2651 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 80% | 43,134 psi | 69% | 2641 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,995 psi | 82% | 2854 fps | 99.7% |
| Alliant Power Pro 2000-MR | 36.4 gr | 80% | 37,594 psi | 60% | 2651 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,766 psi | 56% | 2507 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,792 psi | 81% | 2713 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,507 psi | 60% | 2569 fps | 96.5% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,840 psi | 59% | 2612 fps | 95.5% |
| Alliant Reloder-17 | 36.7 gr | 82% | 31,952 psi | 51% | 2513 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,431 psi | 54% | 2556 fps | 95.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,779 psi | 85% | 2697 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,727 psi | 65% | 2638 fps | 96.8% |
| Bofors RP3 | <<locked>> | 80% | 34,098 psi | 55% | 2507 fps | 97.2% |
| Bofors RP7 | <<locked>> | 94% | 48,602 psi | 78% | 2740 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,382 psi | 73% | 2641 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,148 psi | 68% | 2671 fps | 99.5% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,122 psi | 74% | 2802 fps | 98.6% |
| Hodgdon H322 | <<locked>> | 80% | 49,777 psi | 80% | 2749 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,676 psi | 81% | 2776 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 37,681 psi | 60% | 2566 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 96% | 48,138 psi | 77% | 2825 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 96% | 52,330 psi | 84% | 2841 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 42,032 psi | 67% | 2651 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,850 psi | 51% | 2457 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,840 psi | 61% | 2615 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 96% | 48,834 psi | 78% | 2848 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 42% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,480 psi | 65% | 2605 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 41,191 psi | 66% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,260 psi | 60% | 2523 fps | 96.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,979 psi | 77% | 2700 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 51,097 psi | 82% | 2674 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 48,385 psi | 78% | 2759 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,456 psi | 76% | 2723 fps | 95.2% |
| IMR 4831 | <<locked>> | 90% | 35,317 psi | 57% | 2556 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 38,377 psi | 62% | 2602 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 80% | 43,743 psi | 70% | 2651 fps | 99.3% |
| Lovex D073.5 | <<locked>> | 80% | 49,400 psi | 79% | 2740 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 40,364 psi | 65% | 2618 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,872 psi | 67% | 2579 fps | 98.2% |
| Lovex S062 | <<locked>> | 80% | 36,840 psi | 59% | 2523 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 41,321 psi | 66% | 2615 fps | 95.3% |
| Lovex S070 | <<locked>> | 96% | 47,282 psi | 76% | 2746 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 40,727 psi | 65% | 2592 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 40,930 psi | 66% | 2605 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,927 psi | 59% | 2559 fps | 97% |
| Norma URP | <<locked>> | 90% | 36,840 psi | 59% | 2602 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 36,230 psi | 58% | 2566 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 96% | 43,845 psi | 70% | 2749 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 43,410 psi | 70% | 2644 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,801 psi | 69% | 2671 fps | 98.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,282 psi | 76% | 2700 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,281 psi | 42% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 48,805 psi | 78% | 2733 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 43,468 psi | 70% | 2657 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,885 psi | 62% | 2667 fps | 96.9% |
| ReloadSwiss RS 60 | 35.8 gr | 80% | 31,865 psi | 51% | 2526 fps | 98% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,928 psi | 62% | 2674 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,293 psi | 68% | 2746 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 44,831 psi | 72% | 2644 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,711 psi | 62% | 2543 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 32,184 psi | 52% | 2451 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 94% | 48,602 psi | 78% | 2740 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,321 psi | 66% | 2615 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,364 psi | 65% | 2618 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,840 psi | 59% | 2523 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 47,282 psi | 76% | 2746 fps | 95.7% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,764 psi | 83% | 2753 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,272 psi | 53% | 2500 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,706 psi | 83% | 2736 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,814 psi | 67% | 2621 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,176 psi | 64% | 2605 fps | 97.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,250 psi | 68% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,969 psi | 56% | 2421 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 46,412 psi | 74% | 2664 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 47,166 psi | 76% | 2730 fps | 99.8% |
| Somchem S335 | <<locked>> | 80% | 41,785 psi | 67% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,466 psi | 66% | 2621 fps | 98% |
| Somchem S355 | <<locked>> | 80% | 33,127 psi | 53% | 2457 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 28,935 psi | 46% | 2438 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 47,819 psi | 77% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,453 psi | 68% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,971 psi | 61% | 2536 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,769 psi | 62% | 2543 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,488 psi | 50% | 2398 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 88% | 36,274 psi | 58% | 2552 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 43,497 psi | 70% | 2644 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 37,260 psi | 60% | 2526 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 38,014 psi | 61% | 2608 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 33,634 psi | 54% | 2582 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,068 psi | 51% | 2425 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 43,076 psi | 69% | 2690 fps | 99.7% |
| Winchester 760 | <<locked>> | 96% | 48,138 psi | 77% | 2825 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,349 psi | 63% | 2605 fps | 98.1% |
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 114 powders for .260 Ackley Improved loaded with the .264 | 119gr | Lehigh Defense Match Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,732 fps to 3,015 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 119.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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 | 119gr | Lehigh Defense Match Solid they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.