Load Specifications
Load data in caliber 6.5-06 A-Square with .264 | 140gr | Nosler AccuBond bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H4350, Norma MRP and Alliant Reloder-26.
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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 57,957 psi | 89% | 2680 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 58,755 psi | 90% | 2759 fps | 99.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,203 psi | 88% | 2808 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 58,276 psi | 90% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,492 psi | 85% | 2799 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 58,508 psi | 90% | 2956 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 98% | 55,463 psi | 85% | 2894 fps | 97% |
| ADI AR 2208 | <<locked>> | 86% | 57,972 psi | 89% | 2769 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,246 psi | 87% | 2844 fps | 98.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,725 psi | 89% | 2904 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,144 psi | 57% | 2569 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,667 psi | 89% | 2894 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 56,492 psi | 87% | 2844 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,288 psi | 85% | 2740 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,564 psi | 85% | 2766 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,202 psi | 86% | 2851 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,885 psi | 89% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,709 psi | 86% | 2835 fps | 98.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,884 psi | 88% | 2897 fps | 99.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,983 psi | 83% | 2825 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,601 psi | 72% | 2759 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 58,378 psi | 90% | 2969 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,301 psi | 80% | 2825 fps | 98.5% |
| Bofors RP3 | <<locked>> | 84% | 56,159 psi | 86% | 2759 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,884 psi | 88% | 2897 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 55,477 psi | 85% | 2749 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,470 psi | 71% | 2703 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 84% | 56,478 psi | 87% | 2776 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,682 psi | 89% | 2854 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 88% | 57,203 psi | 88% | 2812 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 98% | 58,001 psi | 89% | 2848 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,579 psi | 87% | 2825 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,565 psi | 87% | 2776 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 57,870 psi | 89% | 2805 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,716 psi | 70% | 2802 fps | 98% |
| Hodgdon Superformance | <<locked>> | 90% | 58,030 psi | 89% | 2894 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 56% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 58,450 psi | 90% | 2772 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,551 psi | 89% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,231 psi | 87% | 2740 fps | 99.7% |
| IMR 4350 | <<locked>> | 92% | 56,478 psi | 87% | 2782 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,000 psi | 88% | 2776 fps | 99.7% |
| IMR 4831 | <<locked>> | 92% | 55,985 psi | 86% | 2792 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 57,000 psi | 88% | 2789 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,564 psi | 85% | 2776 fps | 97.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,274 psi | 85% | 2877 fps | 98% |
| Lovex S060 | <<locked>> | 82% | 58,610 psi | 90% | 2733 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,827 psi | 89% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,348 psi | 88% | 2772 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 55,216 psi | 85% | 2766 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,805 psi | 74% | 2671 fps | 99.4% |
| Norma 203B | <<locked>> | 84% | 58,581 psi | 90% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,580 psi | 89% | 2841 fps | 98.9% |
| Norma MRP | <<locked>> | 98% | 56,550 psi | 87% | 2920 fps | 99.8% |
| Norma URP | <<locked>> | 92% | 57,885 psi | 89% | 2838 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,550 psi | 85% | 2776 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,796 psi | 86% | 2894 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 92% | 56,623 psi | 87% | 2841 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,922 psi | 77% | 2772 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 58% | 1752 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,536 psi | 87% | 2766 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,971 psi | 88% | 2861 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,376 psi | 85% | 2822 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,754 psi | 89% | 2907 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,890 psi | 71% | 2799 fps | 99% |
| Rottweil R 902 | <<locked>> | 82% | 55,985 psi | 86% | 2703 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,376 psi | 87% | 2756 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 58,001 psi | 89% | 2818 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 96% | 54,998 psi | 85% | 2822 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 88% | 55,477 psi | 85% | 2749 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,348 psi | 88% | 2772 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,827 psi | 89% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,216 psi | 85% | 2766 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,986 psi | 89% | 2815 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,682 psi | 90% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,913 psi | 88% | 2635 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,797 psi | 87% | 2726 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 58,450 psi | 90% | 2874 fps | 99.3% |
| Somchem S355 | <<locked>> | 86% | 56,217 psi | 86% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,086 psi | 86% | 2759 fps | 97.3% |
| Somchem S365 | <<locked>> | 94% | 57,537 psi | 89% | 2838 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,796 psi | 86% | 2802 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 82% | 56,478 psi | 87% | 2661 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,652 psi | 87% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,682 psi | 89% | 2726 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,086 psi | 86% | 2776 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,882 psi | 84% | 2776 fps | 99.1% |
| Vihtavuori N540 | <<locked>> | 84% | 58,363 psi | 90% | 2723 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,434 psi | 85% | 2785 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,608 psi | 87% | 2848 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,666 psi | 87% | 2913 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,733 psi | 75% | 2769 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,869 psi | 86% | 2746 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 57,682 psi | 89% | 2854 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,690 psi | 76% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,912 psi | 86% | 2795 fps | 98.8% |
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 2495 | <<locked>> | 80% | 54,143 psi | 83% | 2631 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,590 psi | 79% | 2654 fps | 98.8% |
| Accurate 3100 | <<locked>> | 82% | 31,198 psi | 48% | 2329 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 51,343 psi | 79% | 2641 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,436 psi | 61% | 2530 fps | 99.2% |
| Accurate High Country | <<locked>> | 90% | 44,382 psi | 68% | 2717 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 94% | 48,298 psi | 74% | 2776 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 48,196 psi | 74% | 2621 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,785 psi | 63% | 2572 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 92% | 44,164 psi | 68% | 2664 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 98% | 35,012 psi | 54% | 2513 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,780 psi | 83% | 2838 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 40,857 psi | 63% | 2569 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,081 psi | 76% | 2648 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,054 psi | 80% | 2710 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,218 psi | 59% | 2536 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,555 psi | 67% | 2657 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 40,437 psi | 62% | 2562 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,232 psi | 59% | 2559 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,166 psi | 43% | 2306 fps | 97.6% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,023 psi | 46% | 2372 fps | 95% |
| Alliant Reloder-26 | 45.5 gr | 80% | 30,124 psi | 46% | 2415 fps | 96.1% |
| Bofors RP15 | <<locked>> | 92% | 40,335 psi | 62% | 2602 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 49,385 psi | 76% | 2657 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 38,232 psi | 59% | 2559 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 43,366 psi | 67% | 2543 fps | 97.5% |
| Hodgdon H1000 | <<locked>> | 98% | 43,337 psi | 67% | 2644 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 49,748 psi | 77% | 2674 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 41,524 psi | 64% | 2579 fps | 97.6% |
| Hodgdon H4350 | 42.8 gr | 80% | 44,251 psi | 68% | 2595 fps | 97% |
| Hodgdon H4831 | <<locked>> | 92% | 47,181 psi | 73% | 2671 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 46,311 psi | 71% | 2657 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,998 psi | 55% | 2438 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 54,143 psi | 83% | 2756 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,652 psi | 58% | 2612 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 40,205 psi | 62% | 2585 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,485 psi | 42% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 54,766 psi | 84% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,720 psi | 78% | 2654 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,011 psi | 82% | 2687 fps | 99.4% |
| IMR 4350 | <<locked>> | 80% | 38,841 psi | 60% | 2474 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,541 psi | 69% | 2569 fps | 98.1% |
| IMR 4831 | <<locked>> | 80% | 38,029 psi | 59% | 2487 fps | 99% |
| IMR 4895 | <<locked>> | 80% | 53,388 psi | 82% | 2736 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 46,253 psi | 71% | 2618 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 94% | 45,237 psi | 70% | 2700 fps | 95.6% |
| Lovex S060 | <<locked>> | 80% | 55,274 psi | 85% | 2684 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 51,024 psi | 78% | 2648 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,177 psi | 65% | 2523 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 40,538 psi | 62% | 2507 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 32,430 psi | 50% | 2362 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 51,387 psi | 79% | 2697 fps | 100% |
| Norma 204 | <<locked>> | 82% | 41,031 psi | 63% | 2556 fps | 95.6% |
| Norma MRP | 46.4 gr | 84% | 34,896 psi | 54% | 2507 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 39,218 psi | 60% | 2526 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 80% | 52,011 psi | 80% | 2723 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 45,005 psi | 69% | 2707 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 37,956 psi | 58% | 2513 fps | 97.5% |
| Ramshot Magnum | <<locked>> | 92% | 37,304 psi | 57% | 2526 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 43% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,414 psi | 76% | 2657 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,253 psi | 71% | 2707 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,407 psi | 61% | 2552 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,942 psi | 58% | 2556 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,970 psi | 57% | 2595 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 52,721 psi | 81% | 2657 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,601 psi | 72% | 2608 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,976 psi | 69% | 2602 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 86% | 39,653 psi | 61% | 2549 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 43,366 psi | 67% | 2543 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,177 psi | 65% | 2523 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 51,024 psi | 78% | 2648 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,538 psi | 62% | 2507 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,630 psi | 73% | 2661 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 55,027 psi | 85% | 2733 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,384 psi | 73% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,205 psi | 63% | 2467 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 39,291 psi | 60% | 2543 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 46,659 psi | 72% | 2605 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 45,992 psi | 71% | 2592 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 35,694 psi | 55% | 2484 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,360 psi | 54% | 2425 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 53,113 psi | 82% | 2618 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,359 psi | 82% | 2635 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,686 psi | 69% | 2536 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,480 psi | 62% | 2520 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 37,144 psi | 57% | 2461 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 51,619 psi | 79% | 2631 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,118 psi | 62% | 2526 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 31,314 psi | 48% | 2382 fps | 97.7% |
| Vihtavuori N560 | <<locked>> | 92% | 46,238 psi | 71% | 2733 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 98% | 45,455 psi | 70% | 2710 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,682 psi | 61% | 2493 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,524 psi | 64% | 2579 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,918 psi | 38% | 2287 fps | 96.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,392 psi | 61% | 2513 fps | 95.2% |
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 96 powders for 6.5-06 A-Square loaded with the .264 | 140gr | Nosler AccuBond. Alliant Reloder-26 delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,969 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 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 140.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, 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. Hodgdon H4350, Norma MRP, Alliant Reloder-26 rank at the top here: for 6.5-06 A-Square with the .264 | 140gr | Nosler AccuBond 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.