Load Specifications
Bullet Manufacturer:Speer
Bullet Weight:140 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Caliber:6.5-06 Ackley Improved load data
Case Length (l3):2.489"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:72 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:12.0
Load data in caliber 6.5-06 Ackley Improved with .264 | 140gr | Speer Grand Slam bullet and 155 powders. The key underlying parameters are shown in the table above.
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 3100 | <<locked>> | 94% | 55,303 psi | 85% | 2825 fps | 100% |
| Accurate 3100 | <<locked>> | 94% | 56,942 psi | 88% | 2854 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,579 psi | 87% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 58,189 psi | 90% | 2884 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,710 psi | 87% | 2976 fps | 99.1% |
| Accurate High Country | <<locked>> | 92% | 58,436 psi | 90% | 3005 fps | 99.3% |
| Accurate MAGPRO | <<locked>> | 94% | 57,696 psi | 89% | 2979 fps | 98.3% |
| Accurate MAGPRO | <<locked>> | 92% | 55,332 psi | 85% | 2946 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 82% | 57,392 psi | 88% | 2812 fps | 100% |
| ADI AR 2208 | <<locked>> | 82% | 58,624 psi | 90% | 2835 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 57,435 psi | 88% | 2917 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 55,187 psi | 85% | 2887 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 55,013 psi | 85% | 2917 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 94% | 56,594 psi | 87% | 2946 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,443 psi | 76% | 2818 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,720 psi | 78% | 2848 fps | 98.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 44,077 psi | 68% | 2779 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,295 psi | 70% | 2808 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 55,405 psi | 85% | 2884 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 55,405 psi | 85% | 2884 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,696 psi | 89% | 2913 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,347 psi | 85% | 2884 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 58,769 psi | 90% | 2923 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,376 psi | 87% | 2897 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,898 psi | 88% | 2904 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 58,233 psi | 90% | 2930 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 55,071 psi | 85% | 2913 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,695 psi | 87% | 2943 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,478 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,943 psi | 89% | 2910 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,564 psi | 86% | 2946 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 57,479 psi | 88% | 2976 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,927 psi | 88% | 2979 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 58,755 psi | 90% | 3005 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,826 psi | 87% | 2881 fps | 96.5% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 58,146 psi | 89% | 2910 fps | 96.9% |
| Bofors RP15 | <<locked>> | 98% | 57,841 psi | 89% | 2956 fps | 99.7% |
| Bofors RP15 | <<locked>> | 96% | 55,869 psi | 86% | 2930 fps | 99.6% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,735 psi | 80% | 2890 fps | 98.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,301 psi | 82% | 2920 fps | 99% |
| Bofors RP5 | <<locked>> | 94% | 55,071 psi | 85% | 2913 fps | 99.5% |
| Bofors RP5 | <<locked>> | 94% | 56,695 psi | 87% | 2943 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 55,434 psi | 85% | 2805 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 56,594 psi | 87% | 2831 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,621 psi | 84% | 2907 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,028 psi | 86% | 2936 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 86% | 58,320 psi | 90% | 2913 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 55,956 psi | 86% | 2881 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 57,334 psi | 88% | 2871 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 84% | 58,508 psi | 90% | 2894 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 55,158 psi | 85% | 2861 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 92% | 56,434 psi | 87% | 2887 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,638 psi | 89% | 2900 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,216 psi | 85% | 2867 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,841 psi | 89% | 2835 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,448 psi | 85% | 2805 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,563 psi | 84% | 3018 fps | 99.9% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 56,072 psi | 86% | 3048 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,984 psi | 85% | 2894 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 56,347 psi | 87% | 2917 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,115 psi | 57% | 1778 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,217 psi | 57% | 1791 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,058 psi | 88% | 2844 fps | 99.9% |
| IMR 4350 | <<locked>> | 88% | 58,102 psi | 89% | 2867 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,768 psi | 87% | 2825 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,885 psi | 89% | 2848 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 56,942 psi | 88% | 2851 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 58,450 psi | 90% | 2874 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,144 psi | 86% | 2841 fps | 98.4% |
| IMR 4955 Enduron | <<locked>> | 92% | 57,334 psi | 88% | 2867 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 56,826 psi | 87% | 2959 fps | 99% |
| IMR 7828 SSC | <<locked>> | 96% | 58,494 psi | 90% | 2989 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,060 psi | 63% | 2710 fps | 96.1% |
| Lovex S065 | <<locked>> | 86% | 57,435 psi | 88% | 2825 fps | 100% |
| Lovex S065 | <<locked>> | 86% | 58,595 psi | 90% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,753 psi | 86% | 2825 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,840 psi | 87% | 2848 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,550 psi | 87% | 2844 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,885 psi | 89% | 2867 fps | 100% |
| Norma 204 | <<locked>> | 88% | 58,059 psi | 89% | 2900 fps | 99.6% |
| Norma 204 | <<locked>> | 86% | 55,550 psi | 85% | 2867 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,639 psi | 61% | 2703 fps | 97.9% |
| Norma 217ᴾ | <<locked>> | 100% | 41,220 psi | 63% | 2740 fps | 98.4% |
| Norma MRP | <<locked>> | 92% | 54,897 psi | 84% | 2933 fps | 99.9% |
| Norma MRP | <<locked>> | 92% | 56,608 psi | 87% | 2963 fps | 100% |
| Norma URP | <<locked>> | 88% | 58,769 psi | 90% | 2894 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,362 psi | 87% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 57,783 psi | 89% | 2982 fps | 99.4% |
| Ramshot Grand | <<locked>> | 94% | 55,230 psi | 85% | 2946 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 88% | 57,551 psi | 89% | 2900 fps | 100% |
| Ramshot Hunter | <<locked>> | 86% | 55,129 psi | 85% | 2871 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 56,072 psi | 86% | 2917 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 98% | 57,580 psi | 89% | 2940 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,956 psi | 58% | 1821 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,058 psi | 59% | 1831 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 58,653 psi | 90% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,869 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 58,334 psi | 90% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 55,085 psi | 85% | 2910 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,536 psi | 87% | 2936 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 55,303 psi | 85% | 3018 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 57,334 psi | 88% | 3051 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 50,053 psi | 77% | 2897 fps | 97.1% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,967 psi | 80% | 2933 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 56,869 psi | 88% | 2805 fps | 100% |
| Rottweil R 903 | <<locked>> | 82% | 57,943 psi | 89% | 2825 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 58,581 psi | 90% | 2884 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 90% | 56,289 psi | 87% | 2854 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 92% | 56,521 psi | 87% | 2894 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 92% | 57,928 psi | 89% | 2920 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 55,434 psi | 85% | 2805 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 56,594 psi | 87% | 2831 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,435 psi | 88% | 2825 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 86% | 58,595 psi | 90% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,753 psi | 86% | 2825 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,840 psi | 87% | 2848 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 58,146 psi | 89% | 2861 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,492 psi | 87% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,479 psi | 88% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,884 psi | 88% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,914 psi | 89% | 2805 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 56,086 psi | 86% | 2890 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 57,479 psi | 88% | 2917 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 56,304 psi | 87% | 2795 fps | 100% |
| Somchem S355 | <<locked>> | 82% | 57,609 psi | 89% | 2818 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,637 psi | 87% | 2828 fps | 98.4% |
| Somchem S361 | <<locked>> | 90% | 57,696 psi | 89% | 2848 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 55,608 psi | 86% | 2844 fps | 100% |
| Somchem S365 | <<locked>> | 88% | 56,913 psi | 88% | 2864 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,942 psi | 88% | 2867 fps | 99.9% |
| Somchem S385 | <<locked>> | 92% | 58,218 psi | 90% | 2890 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 57,682 psi | 89% | 2769 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 55,114 psi | 85% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,710 psi | 87% | 2831 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 58,189 psi | 90% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,391 psi | 87% | 2844 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 96% | 57,870 psi | 89% | 2871 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 56,086 psi | 86% | 2838 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 57,450 psi | 88% | 2864 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 58,711 psi | 90% | 2917 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,594 psi | 87% | 2887 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 58,697 psi | 90% | 2992 fps | 98.9% |
| Vihtavuori N560 | <<locked>> | 92% | 56,347 psi | 87% | 2959 fps | 98.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 58,421 psi | 90% | 2969 fps | 99% |
| Vihtavuori N565 | <<locked>> | 98% | 56,246 psi | 87% | 2940 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 51,169 psi | 79% | 2904 fps | 96.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,142 psi | 82% | 2940 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,260 psi | 87% | 2789 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,798 psi | 89% | 2815 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 58,624 psi | 90% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 56,231 psi | 87% | 2884 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 58,349 psi | 90% | 3025 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 56,246 psi | 87% | 2999 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,826 psi | 87% | 2861 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 94% | 58,378 psi | 90% | 2890 fps | 99.7% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 34,592 psi | 53% | 2448 fps | 97.4% |
| Accurate 3100 | <<locked>> | 80% | 35,462 psi | 55% | 2470 fps | 97.8% |
| Accurate 4350 | <<locked>> | 80% | 46,311 psi | 71% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 47,355 psi | 73% | 2717 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 40,190 psi | 62% | 2664 fps | 95.4% |
| Accurate High Country | <<locked>> | 82% | 41,278 psi | 64% | 2694 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 86% | 43,468 psi | 67% | 2723 fps | 95% |
| Accurate MAGPRO | <<locked>> | 86% | 44,976 psi | 69% | 2759 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 54,201 psi | 83% | 2766 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 55,143 psi | 85% | 2785 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,508 psi | 59% | 2569 fps | 96% |
| ADI AR 2209 | <<locked>> | 80% | 39,552 psi | 61% | 2595 fps | 96.5% |
| ADI AR 2213 | <<locked>> | 86% | 42,076 psi | 65% | 2674 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 84% | 40,335 psi | 62% | 2641 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 94% | 40,509 psi | 62% | 2638 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 92% | 38,914 psi | 60% | 2608 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 90% | 31,952 psi | 49% | 2477 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 90% | 32,866 psi | 51% | 2507 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,827 psi | 61% | 2595 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,827 psi | 61% | 2595 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,237 psi | 68% | 2700 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,310 psi | 70% | 2723 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 51,242 psi | 79% | 2818 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,605 psi | 81% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,609 psi | 59% | 2566 fps | 96.1% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,465 psi | 61% | 2589 fps | 96.5% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,956 psi | 57% | 2566 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,433 psi | 55% | 2533 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,127 psi | 51% | 2470 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,200 psi | 53% | 2497 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,848 psi | 44% | 2379 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,704 psi | 46% | 2405 fps | 96.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,172 psi | 56% | 2605 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,478 psi | 58% | 2638 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,388 psi | 82% | 2822 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,242 psi | 79% | 2792 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 36,695 psi | 56% | 2559 fps | 95.3% |
| Bofors RP15 | <<locked>> | 84% | 37,739 psi | 58% | 2585 fps | 95.9% |
| Bofors RP30 | <<locked>> | 92% | 39,363 psi | 61% | 2651 fps | 95.6% |
| Bofors RP30 | <<locked>> | 90% | 38,014 psi | 59% | 2621 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 36,956 psi | 57% | 2566 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 35,433 psi | 55% | 2533 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,907 psi | 75% | 2697 fps | 99.2% |
| Bofors RP7 | <<locked>> | 80% | 49,821 psi | 77% | 2720 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 90% | 38,725 psi | 60% | 2602 fps | 95.5% |
| Hodgdon H1000 | <<locked>> | 88% | 37,275 psi | 57% | 2569 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 47,979 psi | 74% | 2746 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 48,907 psi | 75% | 2766 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,343 psi | 77% | 2756 fps | 99% |
| Hodgdon H4350 | <<locked>> | 80% | 51,532 psi | 79% | 2782 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 42,003 psi | 65% | 2621 fps | 95% |
| Hodgdon H4831 | <<locked>> | 84% | 43,207 psi | 66% | 2651 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 44,106 psi | 68% | 2664 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 42,308 psi | 65% | 2631 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,829 psi | 64% | 2585 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,815 psi | 66% | 2608 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,738 psi | 57% | 2641 fps | 96.2% |
| Hodgdon Retumbo | <<locked>> | 86% | 35,317 psi | 54% | 2608 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 47,485 psi | 73% | 2769 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 80% | 48,805 psi | 75% | 2795 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,804 psi | 43% | 1588 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,891 psi | 43% | 1598 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,251 psi | 68% | 2628 fps | 98.5% |
| IMR 4350 | <<locked>> | 80% | 45,368 psi | 70% | 2654 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,183 psi | 77% | 2720 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,314 psi | 79% | 2746 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 44,063 psi | 68% | 2641 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 45,034 psi | 69% | 2664 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,816 psi | 67% | 2625 fps | 95.8% |
| IMR 4955 Enduron | <<locked>> | 82% | 41,901 psi | 64% | 2589 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 86% | 40,538 psi | 62% | 2654 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 86% | 41,539 psi | 64% | 2680 fps | 95.8% |
| IMR 8133 Enduron | <<locked>> | 98% | 38,247 psi | 59% | 2648 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 47,732 psi | 73% | 2671 fps | 99.8% |
| Lovex S065 | <<locked>> | 80% | 48,878 psi | 75% | 2697 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 46,238 psi | 71% | 2664 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 47,123 psi | 73% | 2684 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 29,733 psi | 46% | 2323 fps | 95.5% |
| Lovex S071 | <<locked>> | 80% | 30,574 psi | 47% | 2346 fps | 96% |
| Norma 204 | <<locked>> | 80% | 44,396 psi | 68% | 2667 fps | 97.5% |
| Norma 204 | <<locked>> | 80% | 45,484 psi | 70% | 2694 fps | 97.9% |
| Norma 217 | <<locked>> | 96% | 34,708 psi | 53% | 2582 fps | 96.1% |
| Norma 217 | <<locked>> | 94% | 33,663 psi | 52% | 2556 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 35,955 psi | 55% | 2569 fps | 96.7% |
| Norma MRP | <<locked>> | 80% | 37,057 psi | 57% | 2598 fps | 97.2% |
| Norma URP | <<locked>> | 80% | 45,455 psi | 70% | 2684 fps | 100% |
| Norma URP | <<locked>> | 80% | 46,427 psi | 71% | 2703 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 40,292 psi | 62% | 2661 fps | 95.7% |
| Ramshot Grand | <<locked>> | 84% | 38,609 psi | 59% | 2628 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 44,237 psi | 68% | 2677 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 80% | 45,353 psi | 70% | 2703 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 33,431 psi | 51% | 2480 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 84% | 34,301 psi | 53% | 2503 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,398 psi | 44% | 1627 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,485 psi | 44% | 1637 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 54,505 psi | 84% | 2858 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,151 psi | 71% | 2713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,340 psi | 73% | 2740 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,425 psi | 68% | 2733 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,571 psi | 70% | 2759 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,388 psi | 51% | 2549 fps | 95.8% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 32,039 psi | 49% | 2513 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 43,149 psi | 66% | 2762 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 44,657 psi | 69% | 2799 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 53,359 psi | 82% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 54,404 psi | 84% | 2776 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,929 psi | 61% | 2549 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 40,770 psi | 63% | 2572 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 37,884 psi | 58% | 2549 fps | 96% |
| Rottweil R 905 | <<locked>> | 80% | 39,001 psi | 60% | 2579 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 80% | 48,907 psi | 75% | 2697 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 80% | 49,821 psi | 77% | 2720 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,732 psi | 73% | 2671 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,878 psi | 75% | 2697 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 46,238 psi | 71% | 2664 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 47,123 psi | 73% | 2684 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 54,636 psi | 84% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,011 psi | 82% | 2628 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 54,027 psi | 83% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,775 psi | 72% | 2621 fps | 99.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,848 psi | 74% | 2648 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,550 psi | 58% | 2546 fps | 95.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,667 psi | 60% | 2572 fps | 96.4% |
| Somchem S355 | <<locked>> | 80% | 52,895 psi | 81% | 2746 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 54,201 psi | 83% | 2772 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,482 psi | 67% | 2598 fps | 95.5% |
| Somchem S361 | <<locked>> | 80% | 41,524 psi | 64% | 2562 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 42,293 psi | 65% | 2638 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 43,598 psi | 67% | 2661 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,464 psi | 59% | 2533 fps | 97.1% |
| Somchem S385 | <<locked>> | 80% | 39,508 psi | 61% | 2562 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 80% | 50,836 psi | 78% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 51,808 psi | 80% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,789 psi | 72% | 2677 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,747 psi | 73% | 2697 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,636 psi | 55% | 2464 fps | 95.8% |
| Vihtavuori N165 | <<locked>> | 80% | 34,156 psi | 53% | 2434 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 46,238 psi | 71% | 2680 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 47,123 psi | 73% | 2700 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,173 psi | 57% | 2546 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 38,363 psi | 59% | 2572 fps | 99.8% |
| Vihtavuori N560 | <<locked>> | 84% | 41,698 psi | 64% | 2687 fps | 95.2% |
| Vihtavuori N560 | <<locked>> | 84% | 42,772 psi | 66% | 2710 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 90% | 41,742 psi | 64% | 2674 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 88% | 40,103 psi | 62% | 2641 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 98% | 47,863 psi | 74% | 2841 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 96% | 45,876 psi | 71% | 2808 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,818 psi | 71% | 2638 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,847 psi | 72% | 2657 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,979 psi | 74% | 2746 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 49,139 psi | 76% | 2769 fps | 99.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 29,486 psi | 45% | 2490 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 30,400 psi | 47% | 2520 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,753 psi | 58% | 2520 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,071 psi | 56% | 2484 fps | 95.3% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 155 powders for 6.5-06 Ackley Improved loaded with the .264 | 140gr | Speer Grand Slam. ReloadSwiss RS 76 delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,051 fps. ADI AR 2217 gives the best case fill at 100 %, and 155 of the 155 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2217, ADI AR 2225 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.