Load Specifications
Bullet Manufacturer:Warner Tool Co
Bullet Weight:123 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Caliber:6.5-06 A-Square load data
Case Length (l3):2.494"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:65.7 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:65,000 psi
Recommended Twist Rate:1:7.5
Load data in caliber 6.5-06 A-Square with .264 | 123gr | Warner Tool Co. Flat Line 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 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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 2495 | <<locked>> | 84% | 57,072 psi | 88% | 2854 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 58,581 psi | 90% | 2927 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,040 psi | 80% | 2904 fps | 99.2% |
| Accurate 4064 | <<locked>> | 86% | 57,159 psi | 88% | 2907 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 58,291 psi | 90% | 3018 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 56,318 psi | 87% | 2936 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,348 psi | 88% | 2940 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,245 psi | 85% | 2999 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 58,508 psi | 90% | 2933 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 56,739 psi | 87% | 3068 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 58,392 psi | 90% | 2969 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 58,726 psi | 90% | 2992 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 58,668 psi | 90% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 56,463 psi | 87% | 3048 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 58,204 psi | 90% | 3045 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,750 psi | 80% | 2986 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,718 psi | 75% | 2923 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,569 psi | 65% | 2835 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,333 psi | 87% | 3123 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,405 psi | 87% | 2956 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,413 psi | 73% | 2904 fps | 96.1% |
| Bofors RP3 | <<locked>> | 86% | 55,695 psi | 86% | 2933 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,750 psi | 80% | 2986 fps | 97.3% |
| Bofors RP7 | <<locked>> | 92% | 58,624 psi | 90% | 2966 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 58,784 psi | 90% | 2966 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 56,159 psi | 86% | 2949 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 56,637 psi | 87% | 3015 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 56,318 psi | 87% | 2972 fps | 98.2% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,101 psi | 88% | 2999 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,724 psi | 86% | 2976 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 56,956 psi | 88% | 2946 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,521 psi | 85% | 2943 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 57,246 psi | 88% | 2986 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 57,029 psi | 88% | 3054 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 56% | 1824 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,928 psi | 89% | 2946 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 57,653 psi | 89% | 2923 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 57,000 psi | 88% | 2927 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,115 psi | 86% | 2907 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,869 psi | 86% | 2943 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 56,579 psi | 87% | 2940 fps | 99% |
| IMR 4831 | <<locked>> | 96% | 58,392 psi | 90% | 3005 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,521 psi | 87% | 2966 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2982 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 82% | 58,508 psi | 90% | 2933 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 56,623 psi | 87% | 2910 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 58,450 psi | 90% | 2907 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 57,174 psi | 88% | 2920 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,637 psi | 87% | 2936 fps | 99.7% |
| Lovex S070 | <<locked>> | 94% | 57,928 psi | 89% | 2979 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,265 psi | 67% | 2749 fps | 97.7% |
| Norma 201 | <<locked>> | 84% | 58,610 psi | 90% | 2930 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,811 psi | 86% | 2877 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,972 psi | 89% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,594 psi | 87% | 2995 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 55,129 psi | 85% | 3074 fps | 99% |
| Norma URP | <<locked>> | 94% | 56,579 psi | 87% | 2999 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,897 psi | 84% | 2946 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 55,376 psi | 85% | 2999 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,165 psi | 69% | 2838 fps | 96.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 58,784 psi | 90% | 2976 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 57% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,883 psi | 86% | 2930 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,796 psi | 86% | 3002 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,115 psi | 86% | 3041 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 58,015 psi | 89% | 3041 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 56,608 psi | 87% | 3071 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,550 psi | 85% | 2877 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,521 psi | 85% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 57,246 psi | 88% | 2972 fps | 97% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 57,493 psi | 88% | 3031 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 92% | 58,624 psi | 90% | 2966 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,637 psi | 87% | 2936 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,623 psi | 87% | 2910 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 57,174 psi | 88% | 2920 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,928 psi | 89% | 2979 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 57,305 psi | 88% | 2989 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,609 psi | 89% | 2943 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 58,537 psi | 90% | 2963 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,941 psi | 86% | 2812 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 56,942 psi | 88% | 2815 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,478 psi | 87% | 2887 fps | 99% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,000 psi | 88% | 3025 fps | 98.2% |
| Somchem S335 | <<locked>> | 82% | 55,506 psi | 85% | 2805 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 57,435 psi | 88% | 2930 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,564 psi | 85% | 2923 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 55,927 psi | 86% | 3005 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 58,247 psi | 90% | 3005 fps | 98.9% |
| Vihtavuori N133 | <<locked>> | 82% | 56,434 psi | 87% | 2792 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,941 psi | 86% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,362 psi | 87% | 2858 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,029 psi | 88% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,274 psi | 85% | 2943 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,227 psi | 77% | 2864 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 86% | 58,160 psi | 89% | 2904 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 58,102 psi | 89% | 3002 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,810 psi | 84% | 3005 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,506 psi | 85% | 3064 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 58,755 psi | 90% | 2963 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,637 psi | 87% | 3015 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,150 psi | 68% | 2976 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 58,508 psi | 90% | 2969 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,534 psi | 84% | 2940 fps | 97.5% |
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 2495 | <<locked>> | 80% | 50,241 psi | 77% | 2759 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,066 psi | 74% | 2756 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 36,970 psi | 57% | 2618 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 47,558 psi | 73% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,926 psi | 55% | 2612 fps | 97.3% |
| ADI AR 2206H | <<locked>> | 80% | 52,837 psi | 81% | 2884 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,788 psi | 69% | 2730 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 45,484 psi | 70% | 2822 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,911 psi | 84% | 2881 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,284 psi | 76% | 2946 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,310 psi | 70% | 2759 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,356 psi | 74% | 2825 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,273 psi | 54% | 2621 fps | 97.4% |
| Alliant Reloder-17 | 45.3 gr | 80% | 39,726 psi | 61% | 2749 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 45,078 psi | 69% | 2812 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 45,266 psi | 70% | 2861 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,427 psi | 42% | 2421 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 94% | 35,259 psi | 54% | 2654 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 33,663 psi | 52% | 2657 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,634 psi | 81% | 2897 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 44,628 psi | 69% | 2848 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 45,585 psi | 70% | 2769 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 45,266 psi | 70% | 2861 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 40,176 psi | 62% | 2631 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 54,810 psi | 84% | 2910 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 46,108 psi | 71% | 2779 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 37,855 psi | 58% | 2654 fps | 95% |
| Hodgdon H4350 | <<locked>> | 82% | 43,743 psi | 67% | 2743 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 53,374 psi | 82% | 2936 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,040 psi | 80% | 2913 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 53,403 psi | 82% | 2894 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,750 psi | 50% | 2516 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,951 psi | 77% | 2874 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,668 psi | 61% | 2726 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 42% | 1634 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,184 psi | 79% | 2844 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 54,172 psi | 83% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,108 psi | 72% | 2766 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,414 psi | 76% | 2792 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,741 psi | 63% | 2664 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,640 psi | 64% | 2664 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,563 psi | 53% | 2566 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 49,588 psi | 76% | 2854 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,721 psi | 80% | 2871 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 54,911 psi | 84% | 2881 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 53,040 psi | 82% | 2858 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,808 psi | 80% | 2808 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,340 psi | 73% | 2766 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,233 psi | 60% | 2615 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 37,304 psi | 57% | 2589 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 35,607 psi | 55% | 2585 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 51,808 psi | 80% | 2831 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,301 psi | 80% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,761 psi | 73% | 2812 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 46,296 psi | 71% | 2815 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 38,827 psi | 60% | 2753 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 35,781 psi | 55% | 2605 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 47,877 psi | 74% | 2831 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 37,115 psi | 57% | 2648 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 42,105 psi | 65% | 2776 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 55,187 psi | 85% | 2923 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 42% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,151 psi | 71% | 2762 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,127 psi | 80% | 2946 fps | 100% |
| ReloadSwiss RS 60 | 45.3 gr | 80% | 42,235 psi | 65% | 2808 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,694 psi | 55% | 2628 fps | 96.9% |
| ReloadSwiss RS 70 | 46 gr | 80% | 34,766 psi | 53% | 2625 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 49,385 psi | 76% | 2782 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,772 psi | 66% | 2710 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 50,459 psi | 78% | 2861 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 92% | 44,048 psi | 68% | 2795 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,176 psi | 62% | 2631 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,233 psi | 60% | 2615 fps | 96.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,040 psi | 82% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,340 psi | 73% | 2766 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,304 psi | 57% | 2589 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,903 psi | 68% | 2762 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,954 psi | 83% | 2887 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,271 psi | 79% | 2851 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,649 psi | 81% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,454 psi | 68% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,334 psi | 59% | 2556 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,642 psi | 67% | 2789 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 52,388 psi | 81% | 2762 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,534 psi | 82% | 2874 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,337 psi | 67% | 2713 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 32,358 psi | 50% | 2562 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 41,829 psi | 64% | 2720 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 53,185 psi | 82% | 2749 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,501 psi | 76% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,501 psi | 76% | 2756 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,162 psi | 63% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,217 psi | 57% | 2608 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 94% | 41,278 psi | 64% | 2697 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,095 psi | 74% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,840 psi | 57% | 2612 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 30,066 psi | 46% | 2500 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 98% | 51,663 psi | 79% | 2992 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,492 psi | 56% | 2579 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 38,087 psi | 59% | 2661 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,947 psi | 40% | 2444 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,459 psi | 79% | 2861 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,266 psi | 68% | 2762 fps | 95.1% |
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 103 powders for 6.5-06 A-Square loaded with the .264 | 123gr | Warner Tool Co. Flat Line. Alliant Reloder-26 delivers the highest muzzle velocity at 3,123 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,123 fps. Accurate 3100 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 (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 6.5-06 A-Square with the .264 | 123gr | Warner Tool Co. Flat Line 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.