Load Specifications
Bullet Manufacturer:Styria Arms | AERO
Bullet Weight:115 gr
Bullet Diameter:0.261"
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 .261 | 115gr | AERO SB,- smax:18.20 bullet and 105 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-16 and Hodgdon Superformance.
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>> | 82% | 57,812 psi | 89% | 2936 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,101 psi | 88% | 2963 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,796 psi | 86% | 2979 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,718 psi | 75% | 2943 fps | 98.3% |
| Accurate 4064 | <<locked>> | 88% | 57,464 psi | 88% | 3018 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,781 psi | 84% | 3068 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 57,392 psi | 88% | 3058 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 58,494 psi | 90% | 3058 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,405 psi | 87% | 3110 fps | 97.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,811 psi | 86% | 2999 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,711 psi | 89% | 2969 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 58,146 psi | 89% | 3192 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 56,289 psi | 87% | 3107 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,550 psi | 85% | 3028 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,927 psi | 86% | 3051 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,811 psi | 86% | 3133 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 57,493 psi | 88% | 3163 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,448 psi | 85% | 3094 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,849 psi | 75% | 3025 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,934 psi | 71% | 2969 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,132 psi | 62% | 2864 fps | 96.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,591 psi | 81% | 3163 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 57,537 psi | 89% | 3074 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 56,173 psi | 86% | 3045 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,849 psi | 75% | 3025 fps | 96% |
| Bofors RP7 | <<locked>> | 92% | 55,724 psi | 86% | 3018 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,450 psi | 88% | 2979 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,840 psi | 86% | 3028 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,797 psi | 87% | 3061 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 57,392 psi | 88% | 3123 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 92% | 57,392 psi | 88% | 3084 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 84% | 58,059 psi | 89% | 3068 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,898 psi | 86% | 3051 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 58,349 psi | 90% | 3104 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 58,131 psi | 89% | 3166 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,926 psi | 55% | 1890 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,506 psi | 85% | 3012 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 58,508 psi | 90% | 3041 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,827 psi | 89% | 3038 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,363 psi | 88% | 3022 fps | 98.8% |
| IMR 4350 | <<locked>> | 96% | 56,797 psi | 87% | 3054 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,870 psi | 89% | 3058 fps | 98.8% |
| IMR 4831 | <<locked>> | 96% | 55,158 psi | 85% | 3058 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 57,377 psi | 88% | 3084 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,811 psi | 86% | 2999 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,667 psi | 89% | 3028 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 56,246 psi | 87% | 2976 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,740 psi | 89% | 3031 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,261 psi | 88% | 3041 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 58,740 psi | 90% | 3087 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,176 psi | 62% | 2776 fps | 96.2% |
| Norma 201 | <<locked>> | 84% | 55,579 psi | 86% | 2992 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,565 psi | 87% | 2992 fps | 100% |
| Norma 203B | <<locked>> | 88% | 58,798 psi | 90% | 3091 fps | 100% |
| Norma 204 | <<locked>> | 96% | 57,769 psi | 89% | 3110 fps | 97.4% |
| Norma MRPᴾ | <<locked>> | 100% | 51,866 psi | 80% | 3114 fps | 98.1% |
| Norma URP | <<locked>> | 96% | 57,348 psi | 88% | 3110 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 56,115 psi | 86% | 3064 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 56,231 psi | 87% | 3110 fps | 99.3% |
| Ramshot TAC | <<locked>> | 82% | 56,217 psi | 86% | 3025 fps | 99.5% |
| Ramshot Wild Boar | <<locked>> | 82% | 56,057 psi | 86% | 3038 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,593 psi | 56% | 1936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,927 psi | 88% | 3041 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,913 psi | 88% | 3123 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 56,840 psi | 87% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 58,668 psi | 90% | 3150 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 57,493 psi | 88% | 3182 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 56,391 psi | 87% | 2969 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,536 psi | 87% | 2995 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,057 psi | 86% | 3035 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 58,131 psi | 89% | 3081 fps | 96.5% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,549 psi | 84% | 3077 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 92% | 55,724 psi | 86% | 3018 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,261 psi | 88% | 3041 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,667 psi | 89% | 3028 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,740 psi | 89% | 3031 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 58,740 psi | 90% | 3087 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 58,233 psi | 90% | 3104 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 58,711 psi | 90% | 3058 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,869 psi | 86% | 3025 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,855 psi | 87% | 2927 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,899 psi | 89% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,595 psi | 89% | 2999 fps | 98.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,056 psi | 83% | 3074 fps | 97.1% |
| Somchem S335 | <<locked>> | 84% | 56,289 psi | 87% | 2920 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 58,566 psi | 90% | 3048 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 56,260 psi | 87% | 3035 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 56,289 psi | 87% | 3114 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,158 psi | 85% | 3054 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 84% | 57,305 psi | 88% | 2907 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,710 psi | 87% | 2956 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 57,101 psi | 88% | 2969 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,725 psi | 89% | 3009 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,101 psi | 86% | 3051 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,500 psi | 73% | 2904 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 56,318 psi | 87% | 2995 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,419 psi | 85% | 2966 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 58,726 psi | 90% | 3110 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,271 psi | 79% | 3048 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,956 psi | 86% | 3022 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 57,188 psi | 88% | 3051 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 57,696 psi | 89% | 3130 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,292 psi | 64% | 3002 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,956 psi | 86% | 3031 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,605 psi | 79% | 2982 fps | 96.3% |
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% | 54,143 psi | 83% | 2887 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,833 psi | 72% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,788 psi | 70% | 2802 fps | 95.8% |
| Accurate 3100 | <<locked>> | 92% | 36,738 psi | 57% | 2697 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,367 psi | 68% | 2812 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,127 psi | 51% | 2628 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 50,241 psi | 77% | 2940 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 42,888 psi | 66% | 2785 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 49,313 psi | 76% | 2982 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,359 psi | 81% | 2943 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,911 psi | 83% | 2917 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,673 psi | 72% | 2992 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 49,298 psi | 76% | 2982 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,757 psi | 66% | 2805 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,745 psi | 70% | 2874 fps | 99.3% |
| Alliant Reloder-16 | 43 gr | 80% | 33,156 psi | 51% | 2651 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,362 psi | 57% | 2785 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,617 psi | 75% | 2972 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 45,658 psi | 70% | 2959 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,950 psi | 45% | 2549 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,623 psi | 58% | 2799 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,620 psi | 52% | 2740 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,096 psi | 77% | 2953 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 42,670 psi | 66% | 2808 fps | 99.7% |
| Bofors RP5 | <<locked>> | 98% | 45,658 psi | 70% | 2959 fps | 95% |
| Bofors RP7 | <<locked>> | 84% | 43,250 psi | 67% | 2785 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,954 psi | 83% | 2927 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,025 psi | 80% | 2969 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,395 psi | 67% | 2818 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 40,959 psi | 63% | 2815 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 47,326 psi | 73% | 2904 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 50,763 psi | 78% | 2949 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,501 psi | 47% | 2539 fps | 96.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,355 psi | 73% | 2927 fps | 100% |
| Hodgdon Superformance | 52.6 gr | 86% | 43,192 psi | 66% | 2890 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 41% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,762 psi | 75% | 2900 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 51,358 psi | 79% | 2940 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,049 psi | 69% | 2822 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,384 psi | 73% | 2848 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 43,961 psi | 68% | 2822 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,134 psi | 65% | 2766 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 32,300 psi | 50% | 2592 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,920 psi | 72% | 2907 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 52,359 psi | 81% | 2943 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,227 psi | 77% | 2917 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,588 psi | 76% | 2867 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 44,802 psi | 69% | 2815 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,898 psi | 57% | 2651 fps | 95.4% |
| Lovex S070 | <<locked>> | 84% | 39,842 psi | 61% | 2736 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 37,434 psi | 58% | 2713 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 49,124 psi | 76% | 2887 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,661 psi | 76% | 2887 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,121 psi | 69% | 2861 fps | 99.6% |
| Norma 204 | <<locked>> | 90% | 46,920 psi | 72% | 2917 fps | 95% |
| Norma MRP | <<locked>> | 94% | 41,771 psi | 64% | 2907 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 33,562 psi | 52% | 2638 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,339 psi | 70% | 2881 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 37,420 psi | 58% | 2740 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 52,576 psi | 81% | 2963 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,620 psi | 81% | 2982 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,209 psi | 42% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,598 psi | 67% | 2802 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,356 psi | 76% | 2999 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,769 psi | 61% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,170 psi | 51% | 2651 fps | 95.1% |
| ReloadSwiss RS 70 | 48.2 gr | 82% | 35,056 psi | 54% | 2717 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 52,895 psi | 81% | 2917 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,804 psi | 72% | 2838 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,248 psi | 62% | 2753 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 54,418 psi | 84% | 3018 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 96% | 47,558 psi | 73% | 2953 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 43,250 psi | 67% | 2785 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,898 psi | 57% | 2651 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,227 psi | 77% | 2917 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,802 psi | 69% | 2815 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 39,842 psi | 61% | 2736 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,510 psi | 64% | 2808 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,242 psi | 79% | 2940 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,950 psi | 75% | 2910 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,067 psi | 77% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,018 psi | 65% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,379 psi | 64% | 2710 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,108 psi | 72% | 2946 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 49,937 psi | 77% | 2825 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,952 psi | 78% | 2930 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 40,799 psi | 63% | 2756 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 29,950 psi | 46% | 2582 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 44,875 psi | 69% | 2871 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 50,618 psi | 78% | 2812 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,586 psi | 72% | 2805 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,282 psi | 73% | 2818 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,972 psi | 60% | 2687 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,795 psi | 54% | 2638 fps | 96% |
| Vihtavuori N165 | <<locked>> | 98% | 44,367 psi | 68% | 2844 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 52,736 psi | 81% | 2940 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,513 psi | 70% | 2808 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,360 psi | 53% | 2638 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 86% | 31,691 psi | 49% | 2631 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,389 psi | 53% | 2615 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 53,287 psi | 82% | 2992 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 40,959 psi | 63% | 2815 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,283 psi | 45% | 2644 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,617 psi | 75% | 2913 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,109 psi | 74% | 2920 fps | 95.5% |
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 105 powders for 6.5-06 A-Square loaded with the .261 | 115gr | AERO SB,- smax:18.20. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,890 fps to 3,192 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.261" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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-16, Hodgdon Superformance rank at the top here: for 6.5-06 A-Square with the .261 | 115gr | AERO SB,- smax:18.20 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.