Load Specifications
Load data in caliber .260 Ackley Improved with .264 | 110gr | Lehigh Defense Match Solid bullet and 100 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% | 54,505 psi | 87% | 2887 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 52,678 psi | 84% | 2907 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 56,101 psi | 90% | 2953 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 54,636 psi | 88% | 2972 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 55,970 psi | 90% | 2940 fps | 95.9% |
| Accurate 4064 | <<locked>> | 94% | 55,912 psi | 90% | 2999 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 51,938 psi | 83% | 3015 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 88% | 53,563 psi | 86% | 2979 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 54,621 psi | 88% | 2976 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 88% | 56,115 psi | 90% | 2986 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 52,852 psi | 85% | 2917 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 54,404 psi | 87% | 3045 fps | 99.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 52,982 psi | 85% | 3091 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 54,027 psi | 87% | 2995 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 54,288 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 54,824 psi | 88% | 3018 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,415 psi | 81% | 3018 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 98% | 54,766 psi | 88% | 3117 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,853 psi | 57% | 2723 fps | 96.3% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 56,115 psi | 90% | 2867 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 53,432 psi | 86% | 2992 fps | 98.9% |
| Bofors RP3 | <<locked>> | 94% | 54,694 psi | 88% | 3012 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 55,100 psi | 88% | 2969 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 86% | 54,665 psi | 88% | 2920 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 55,347 psi | 89% | 3015 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 53,316 psi | 85% | 3054 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 82% | 53,098 psi | 85% | 2930 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,186 psi | 87% | 2956 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 56,115 psi | 90% | 3028 fps | 98.7% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 54,853 psi | 88% | 3061 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 88% | 54,041 psi | 87% | 2992 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,543 psi | 75% | 2890 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 52,939 psi | 85% | 3018 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 56% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,448 psi | 89% | 2995 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 53,809 psi | 86% | 2982 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,012 psi | 87% | 2959 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,331 psi | 87% | 2933 fps | 96.4% |
| IMR 4198 | <<locked>> | 82% | 54,186 psi | 87% | 2851 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 53,737 psi | 86% | 2953 fps | 96.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2949 fps | 98.3% |
| IMR 4895 | <<locked>> | 92% | 56,188 psi | 90% | 3051 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 88% | 56,115 psi | 90% | 2986 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 52,808 psi | 85% | 2917 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 52,866 psi | 85% | 2956 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 53,447 psi | 86% | 2907 fps | 99.5% |
| Lovex S062 | <<locked>> | 92% | 53,751 psi | 86% | 2959 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 56,304 psi | 90% | 2999 fps | 98.1% |
| Lovex S070ᴾ | <<locked>> | 100% | 53,722 psi | 86% | 2979 fps | 96.6% |
| Norma 201 | <<locked>> | 90% | 55,593 psi | 89% | 2976 fps | 100% |
| Norma 202 | <<locked>> | 90% | 56,014 psi | 90% | 2979 fps | 100% |
| Norma 203B | <<locked>> | 92% | 53,983 psi | 87% | 3005 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 51,256 psi | 82% | 3002 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 92% | 54,752 psi | 88% | 3035 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 50,067 psi | 80% | 2986 fps | 96.6% |
| Ramshot TAC | <<locked>> | 86% | 53,272 psi | 85% | 2946 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 88% | 55,883 psi | 90% | 3018 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 53,911 psi | 86% | 2933 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,404 psi | 57% | 1870 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 55,593 psi | 89% | 2966 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 52,910 psi | 85% | 2946 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 54,926 psi | 88% | 3084 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 54,810 psi | 88% | 3127 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 51,213 psi | 82% | 3028 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 51,779 psi | 83% | 3054 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 86% | 53,272 psi | 85% | 2913 fps | 100% |
| Rottweil R 902 | <<locked>> | 92% | 56,043 psi | 90% | 2972 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 54,549 psi | 87% | 3005 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 98% | 55,100 psi | 88% | 2969 fps | 96% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 56,304 psi | 90% | 2999 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 52,866 psi | 85% | 2956 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 53,751 psi | 86% | 2959 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 53,722 psi | 86% | 2979 fps | 96.6% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 55,376 psi | 89% | 2936 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 52,692 psi | 84% | 3009 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 55,187 psi | 88% | 2920 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 54,868 psi | 88% | 2976 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 55,274 psi | 89% | 2999 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 54,056 psi | 87% | 2871 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 54,012 psi | 87% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 53,171 psi | 85% | 2894 fps | 96.2% |
| Somchem S321 | <<locked>> | 84% | 53,882 psi | 86% | 2969 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 53,287 psi | 85% | 2867 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 54,636 psi | 88% | 2972 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 54,940 psi | 88% | 3002 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,629 psi | 73% | 2946 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 53,896 psi | 86% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,143 psi | 87% | 2858 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 55,724 psi | 89% | 2946 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 53,388 psi | 86% | 2913 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 53,113 psi | 85% | 2933 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 53,954 psi | 87% | 3002 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 86% | 53,084 psi | 85% | 2930 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 54,824 psi | 88% | 2953 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 52,663 psi | 84% | 3002 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,479 psi | 62% | 2805 fps | 96.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 54,650 psi | 88% | 2982 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 52,620 psi | 84% | 2979 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 55,259 psi | 89% | 3068 fps | 96.8% |
| Winchester StaBALL Match | <<locked>> | 90% | 55,143 psi | 88% | 3009 fps | 99.8% |
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% | 45,266 psi | 73% | 2743 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 49,458 psi | 79% | 2858 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,927 psi | 61% | 2657 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,396 psi | 71% | 2805 fps | 99.9% |
| Accurate 2700 | <<locked>> | 90% | 52,547 psi | 84% | 2884 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 35,839 psi | 57% | 2641 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 39,044 psi | 63% | 2772 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 41,684 psi | 67% | 2759 fps | 97.7% |
| ADI AR 2208 | <<locked>> | 80% | 35,418 psi | 57% | 2595 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,743 psi | 70% | 2772 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 43,381 psi | 70% | 2772 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 50,952 psi | 82% | 2986 fps | 99.6% |
| Alliant Power Pro 2000-MR | 38.7 gr | 80% | 37,507 psi | 60% | 2762 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,824 psi | 56% | 2621 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 50,894 psi | 82% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,507 psi | 60% | 2684 fps | 96% |
| Alliant Reloder-16 | <<locked>> | 92% | 39,233 psi | 63% | 2782 fps | 95.8% |
| Alliant Reloder-17 | 40.1 gr | 84% | 34,374 psi | 55% | 2687 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,678 psi | 54% | 2667 fps | 95.3% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 52,591 psi | 84% | 2818 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,567 psi | 65% | 2749 fps | 96.3% |
| Bofors RP3 | <<locked>> | 80% | 34,272 psi | 55% | 2618 fps | 96.7% |
| Bofors RP7 | <<locked>> | 96% | 51,706 psi | 83% | 2913 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,469 psi | 73% | 2766 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,061 psi | 67% | 2785 fps | 99.2% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,528 psi | 75% | 2933 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 80% | 49,777 psi | 80% | 2877 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 50,894 psi | 82% | 2904 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 40,190 psi | 64% | 2733 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 96% | 48,254 psi | 77% | 2946 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 42,061 psi | 67% | 2772 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,910 psi | 54% | 2618 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,855 psi | 61% | 2730 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,179 psi | 42% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,480 psi | 65% | 2723 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 41,089 psi | 66% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,144 psi | 60% | 2631 fps | 96% |
| IMR 4166 Enduron | <<locked>> | 86% | 48,066 psi | 77% | 2822 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 51,140 psi | 82% | 2808 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 50,546 psi | 81% | 2897 fps | 95.5% |
| IMR 4831 | <<locked>> | 92% | 37,869 psi | 61% | 2726 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 38,406 psi | 62% | 2717 fps | 96.9% |
| IMR 8208 XBR | <<locked>> | 80% | 43,743 psi | 70% | 2772 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 80% | 49,182 psi | 79% | 2861 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 40,466 psi | 65% | 2736 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 42,032 psi | 67% | 2700 fps | 97.8% |
| Lovex S062 | <<locked>> | 80% | 37,014 psi | 59% | 2641 fps | 97.8% |
| Lovex S065 | <<locked>> | 92% | 43,932 psi | 70% | 2782 fps | 95.5% |
| Lovex S070 | <<locked>> | 96% | 47,369 psi | 76% | 2867 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,857 psi | 66% | 2713 fps | 98.6% |
| Norma 202 | <<locked>> | 80% | 41,017 psi | 66% | 2726 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,898 psi | 59% | 2671 fps | 96.4% |
| Norma URP | <<locked>> | 92% | 39,479 psi | 63% | 2776 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 36,143 psi | 58% | 2674 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 96% | 44,164 psi | 71% | 2871 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 43,526 psi | 70% | 2766 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 43,018 psi | 69% | 2792 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,166 psi | 76% | 2818 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,353 psi | 42% | 1673 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 49,037 psi | 79% | 2864 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 46,427 psi | 74% | 2831 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,001 psi | 63% | 2785 fps | 96.4% |
| ReloadSwiss RS 60 | 38.1 gr | 80% | 31,850 psi | 51% | 2631 fps | 97.4% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,885 psi | 62% | 2785 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 42,250 psi | 68% | 2858 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 44,831 psi | 72% | 2769 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,914 psi | 62% | 2664 fps | 98.2% |
| Rottweil R 903 | <<locked>> | 80% | 32,242 psi | 52% | 2559 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 96% | 51,706 psi | 83% | 2913 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,932 psi | 70% | 2782 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,466 psi | 65% | 2736 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 37,014 psi | 59% | 2641 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 96% | 47,369 psi | 76% | 2867 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 51,590 psi | 83% | 2877 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 35,520 psi | 57% | 2664 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 51,750 psi | 83% | 2867 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,626 psi | 67% | 2733 fps | 95.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,263 psi | 65% | 2723 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,308 psi | 68% | 2674 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,969 psi | 56% | 2533 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 49,777 psi | 80% | 2838 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 46,949 psi | 75% | 2851 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 41,901 psi | 67% | 2677 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,321 psi | 66% | 2736 fps | 97.5% |
| Somchem S355 | <<locked>> | 80% | 33,228 psi | 53% | 2569 fps | 95.7% |
| Somchem S365 | <<locked>> | 86% | 29,066 psi | 47% | 2543 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 47,819 psi | 77% | 2746 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,511 psi | 68% | 2674 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,000 psi | 61% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,827 psi | 62% | 2661 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 31,546 psi | 51% | 2507 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 90% | 38,696 psi | 62% | 2717 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 43,772 psi | 70% | 2769 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 80% | 37,420 psi | 60% | 2644 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 40,509 psi | 65% | 2772 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 98% | 36,013 psi | 58% | 2749 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,111 psi | 51% | 2526 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 43,062 psi | 69% | 2812 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 48,254 psi | 77% | 2946 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,320 psi | 63% | 2720 fps | 97.7% |
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 100 powders for .260 Ackley Improved loaded with the .264 | 110gr | Lehigh Defense Match Solid. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,127 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,127 fps. Accurate 4350 gives the best case fill at 100 %, and 100 of the 100 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 110.0 gr projectile in 0.264" calls for a 1:9.5 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 | 110gr | Lehigh Defense Match Solid 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.