Load Specifications
Bullet:.264 | 127gr | Barnes LRX BT
Bullet Manufacturer:Barnes
Bullet Weight:127 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:1:8.5
Load data in caliber 6.5-06 A-Square with .264 | 127gr | Barnes LRX BT bullet and 104 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon H414 and ReloadSwiss RS 70.
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% | 56,608 psi | 87% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,984 psi | 85% | 2838 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 2874 fps | 99.4% |
| Accurate 4064 | <<locked>> | 86% | 57,174 psi | 88% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 58,682 psi | 90% | 2986 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 56,710 psi | 87% | 2904 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 57,870 psi | 89% | 2910 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,840 psi | 86% | 2972 fps | 98.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,563 psi | 82% | 2966 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 57,450 psi | 88% | 3038 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 58,523 psi | 90% | 2930 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,129 psi | 85% | 2900 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,550 psi | 85% | 2986 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,188 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,085 psi | 85% | 2959 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 2959 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,182 psi | 76% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,801 psi | 66% | 2808 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,043 psi | 88% | 3094 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,608 psi | 87% | 2920 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,790 psi | 74% | 2877 fps | 96.6% |
| Bofors RP3 | <<locked>> | 86% | 55,608 psi | 86% | 2894 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,272 psi | 80% | 2959 fps | 97.8% |
| Bofors RP7 | <<locked>> | 90% | 55,288 psi | 85% | 2881 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 86% | 56,130 psi | 86% | 2913 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 57,217 psi | 88% | 2986 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 90% | 56,869 psi | 87% | 2943 fps | 98.5% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,711 psi | 89% | 2972 fps | 96.7% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,318 psi | 87% | 2953 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 57,377 psi | 88% | 2913 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,738 psi | 86% | 2907 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 57,827 psi | 89% | 2953 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 57,769 psi | 89% | 3028 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 56% | 1801 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 58,450 psi | 90% | 2913 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 58,160 psi | 89% | 2890 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 57,464 psi | 88% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,565 psi | 87% | 2877 fps | 99.3% |
| IMR 4350 | <<locked>> | 94% | 56,376 psi | 87% | 2917 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,043 psi | 88% | 2910 fps | 99.3% |
| IMR 4831 | <<locked>> | 94% | 55,071 psi | 85% | 2920 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,579 psi | 87% | 2927 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,317 psi | 85% | 2900 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,807 psi | 78% | 2930 fps | 96% |
| Lovex D073.6 | <<locked>> | 82% | 56,942 psi | 88% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,274 psi | 85% | 2825 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 57,479 psi | 88% | 2884 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,942 psi | 88% | 2904 fps | 99.8% |
| Lovex S070 | <<locked>> | 94% | 58,291 psi | 90% | 2946 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,352 psi | 67% | 2720 fps | 98% |
| Norma 201 | <<locked>> | 84% | 58,494 psi | 90% | 2890 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,840 psi | 86% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 86% | 58,088 psi | 89% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 94% | 57,203 psi | 88% | 2969 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 55,796 psi | 86% | 3048 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 57,116 psi | 88% | 2969 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,376 psi | 85% | 2913 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,184 psi | 79% | 2946 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 94% | 55,927 psi | 86% | 2969 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,397 psi | 70% | 2815 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,767 psi | 57% | 1841 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,289 psi | 87% | 2900 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 56,347 psi | 87% | 2972 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,434 psi | 87% | 3005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 58,552 psi | 90% | 3009 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,232 psi | 88% | 3041 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,669 psi | 64% | 2822 fps | 96.6% |
| Rottweil R 902 | <<locked>> | 84% | 55,782 psi | 86% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,811 psi | 86% | 2890 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 57,769 psi | 89% | 2946 fps | 97.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 58,117 psi | 89% | 3005 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 90% | 55,288 psi | 85% | 2881 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,942 psi | 88% | 2904 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,942 psi | 88% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 57,479 psi | 88% | 2884 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 58,291 psi | 90% | 2946 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 57,827 psi | 89% | 2956 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 57,957 psi | 89% | 2913 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 58,682 psi | 90% | 2927 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,956 psi | 86% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,014 psi | 88% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,826 psi | 87% | 2858 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,624 psi | 89% | 2999 fps | 98.6% |
| Somchem S335 | <<locked>> | 82% | 55,753 psi | 86% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 57,566 psi | 89% | 2894 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,912 psi | 86% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,753 psi | 86% | 2881 fps | 96.3% |
| Somchem S365 | <<locked>> | 96% | 56,550 psi | 87% | 2972 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 58,697 psi | 90% | 2979 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 56,521 psi | 87% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,333 psi | 87% | 2805 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,463 psi | 87% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,406 psi | 88% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,782 psi | 86% | 2910 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,676 psi | 78% | 2838 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 86% | 58,218 psi | 90% | 2864 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 58,581 psi | 90% | 2969 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,288 psi | 85% | 2976 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,173 psi | 86% | 3038 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,622 psi | 86% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 57,217 psi | 88% | 2986 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,425 psi | 68% | 2946 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,303 psi | 85% | 2884 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,448 psi | 85% | 2920 fps | 98% |
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% | 49,647 psi | 76% | 2713 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,269 psi | 74% | 2726 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 34,345 psi | 53% | 2526 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 47,079 psi | 72% | 2720 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,810 psi | 55% | 2575 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 80% | 53,142 psi | 82% | 2851 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,063 psi | 69% | 2700 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 42,830 psi | 66% | 2733 fps | 95% |
| ADI AR 2213 | <<locked>> | 98% | 50,024 psi | 77% | 2900 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,792 psi | 77% | 2917 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,498 psi | 70% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,631 psi | 75% | 2795 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,157 psi | 54% | 2589 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,958 psi | 61% | 2720 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,496 psi | 65% | 2730 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,583 psi | 66% | 2776 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,238 psi | 42% | 2388 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,025 psi | 51% | 2569 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 84% | 31,386 psi | 48% | 2566 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,084 psi | 82% | 2867 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 44,904 psi | 69% | 2822 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 45,397 psi | 70% | 2730 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,583 psi | 66% | 2776 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 40,234 psi | 62% | 2605 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 45,977 psi | 71% | 2743 fps | 99.2% |
| Hodgdon H414 | 44.5 gr | 80% | 37,971 psi | 58% | 2628 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 80% | 40,944 psi | 63% | 2651 fps | 95% |
| Hodgdon H4831 | <<locked>> | 98% | 53,882 psi | 83% | 2910 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,576 psi | 81% | 2890 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 53,780 psi | 83% | 2861 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,764 psi | 50% | 2487 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,357 psi | 77% | 2841 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,827 psi | 61% | 2700 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 41% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,300 psi | 79% | 2808 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 54,288 psi | 84% | 2838 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,398 psi | 73% | 2736 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,748 psi | 77% | 2766 fps | 98.4% |
| IMR 4350 | <<locked>> | 84% | 40,959 psi | 63% | 2638 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,829 psi | 64% | 2638 fps | 96.5% |
| IMR 4831 | <<locked>> | 80% | 34,563 psi | 53% | 2533 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 49,908 psi | 77% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,156 psi | 80% | 2848 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 98% | 47,688 psi | 73% | 2871 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 80% | 53,272 psi | 82% | 2822 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,127 psi | 80% | 2776 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,500 psi | 73% | 2733 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,986 psi | 60% | 2579 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 37,246 psi | 57% | 2559 fps | 95.5% |
| Lovex S071 | <<locked>> | 94% | 35,447 psi | 55% | 2552 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 51,634 psi | 79% | 2792 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,576 psi | 81% | 2792 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,964 psi | 74% | 2782 fps | 100% |
| Norma 204 | <<locked>> | 86% | 43,323 psi | 67% | 2726 fps | 95.1% |
| Norma MRP | <<locked>> | 90% | 38,986 psi | 60% | 2726 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 35,853 psi | 55% | 2575 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 48,269 psi | 74% | 2802 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 47,630 psi | 73% | 2881 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 34,795 psi | 54% | 2559 fps | 95.3% |
| Ramshot Magnum | <<locked>> | 98% | 42,279 psi | 65% | 2749 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 42% | 1647 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,108 psi | 71% | 2726 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,576 psi | 81% | 2913 fps | 100% |
| ReloadSwiss RS 60 | 45.5 gr | 80% | 42,540 psi | 65% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,520 psi | 55% | 2592 fps | 97.2% |
| ReloadSwiss RS 70 | 46.2 gr | 80% | 34,824 psi | 54% | 2602 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,957 psi | 60% | 2753 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 49,197 psi | 76% | 2743 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,772 psi | 66% | 2677 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 47,587 psi | 73% | 2776 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 41,350 psi | 64% | 2707 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 40,234 psi | 62% | 2605 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,986 psi | 60% | 2579 fps | 97.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 53,272 psi | 82% | 2822 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,500 psi | 73% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,246 psi | 57% | 2559 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,164 psi | 68% | 2733 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,925 psi | 83% | 2851 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,648 psi | 79% | 2822 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,649 psi | 81% | 2726 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,396 psi | 68% | 2595 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,276 psi | 59% | 2526 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,947 psi | 68% | 2762 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 52,286 psi | 80% | 2723 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 53,940 psi | 83% | 2841 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,163 psi | 66% | 2677 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 52,228 psi | 80% | 2825 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 32,169 psi | 49% | 2526 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 39,233 psi | 60% | 2635 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 53,243 psi | 82% | 2713 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,443 psi | 76% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,821 psi | 77% | 2723 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,292 psi | 64% | 2608 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,333 psi | 57% | 2579 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 41,510 psi | 64% | 2671 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 48,022 psi | 74% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,651 psi | 56% | 2575 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 27,862 psi | 43% | 2405 fps | 95% |
| Vihtavuori N560 | <<locked>> | 96% | 48,733 psi | 75% | 2907 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,593 psi | 56% | 2552 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 37,971 psi | 58% | 2628 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 25,570 psi | 39% | 2408 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,503 psi | 79% | 2825 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,556 psi | 69% | 2736 fps | 95.7% |
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 104 powders for 6.5-06 A-Square loaded with the .264 | 127gr | Barnes LRX BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,094 fps; across all powders the maximum-charge window runs from 1,801 fps to 3,094 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 127.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, 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 60, Hodgdon H414, ReloadSwiss RS 70 rank at the top here: for 6.5-06 A-Square with the .264 | 127gr | Barnes LRX BT 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.