Load Specifications
Load data in caliber 6.5-06 A-Square with .264 | 144gr | Lapua MaxRange Target OTM bullet and 85 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Accurate MAGPRO 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 2700 | <<locked>> | 82% | 57,798 psi | 89% | 2726 fps | 99.7% |
| Accurate 3100 | <<locked>> | 98% | 57,319 psi | 88% | 2785 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 57,899 psi | 89% | 2700 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,303 psi | 85% | 2766 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 55,680 psi | 86% | 2874 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 84% | 57,217 psi | 88% | 2733 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,014 psi | 86% | 2818 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 98% | 57,522 psi | 88% | 2877 fps | 98.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 44,846 psi | 69% | 2651 fps | 96.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,769 psi | 61% | 2612 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 58,407 psi | 90% | 2753 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 58,349 psi | 90% | 2776 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,043 psi | 86% | 2822 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,377 psi | 88% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,535 psi | 85% | 2808 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,087 psi | 88% | 2874 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 57,885 psi | 89% | 2841 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,038 psi | 77% | 2795 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 96% | 58,407 psi | 90% | 2933 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,869 psi | 86% | 2854 fps | 99.3% |
| Bofors RP3 | <<locked>> | 82% | 55,709 psi | 86% | 2723 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,977 psi | 71% | 2723 fps | 97.2% |
| Bofors RP5 | <<locked>> | 98% | 57,087 psi | 88% | 2874 fps | 99.5% |
| Bofors RP7 | <<locked>> | 88% | 58,262 psi | 90% | 2769 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,269 psi | 76% | 2740 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 55,869 psi | 86% | 2740 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,319 psi | 88% | 2822 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 56,463 psi | 87% | 2779 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 96% | 57,508 psi | 88% | 2818 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,478 psi | 87% | 2802 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,608 psi | 87% | 2746 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,066 psi | 75% | 2844 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 88% | 57,856 psi | 89% | 2864 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,956 psi | 57% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,565 psi | 87% | 2713 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,985 psi | 86% | 2753 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,463 psi | 87% | 2743 fps | 99.8% |
| IMR 4831 | <<locked>> | 90% | 55,738 psi | 86% | 2759 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 58,668 psi | 90% | 2802 fps | 98.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 58,755 psi | 90% | 2910 fps | 98.9% |
| Lovex S062 | <<locked>> | 82% | 56,971 psi | 88% | 2707 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,884 psi | 88% | 2740 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 58,378 psi | 90% | 2785 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,039 psi | 79% | 2694 fps | 99.9% |
| Norma 203B | <<locked>> | 82% | 57,638 psi | 89% | 2759 fps | 100% |
| Norma 204 | <<locked>> | 90% | 56,956 psi | 88% | 2808 fps | 99.2% |
| Norma MRP | <<locked>> | 96% | 56,855 psi | 87% | 2897 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 57,551 psi | 89% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,753 psi | 86% | 2874 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 90% | 56,188 psi | 86% | 2808 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,534 psi | 82% | 2808 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,579 psi | 58% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,477 psi | 85% | 2726 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 57,029 psi | 88% | 2828 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,201 psi | 85% | 2792 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,261 psi | 88% | 2871 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,342 psi | 76% | 2844 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 82% | 58,740 psi | 90% | 2713 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 55,883 psi | 86% | 2720 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,609 psi | 89% | 2789 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 96% | 58,653 psi | 90% | 2851 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 88% | 58,262 psi | 90% | 2769 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,884 psi | 88% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,971 psi | 88% | 2707 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 58,378 psi | 90% | 2785 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,334 psi | 88% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,173 psi | 86% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,130 psi | 86% | 2694 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 58,175 psi | 89% | 2844 fps | 99.5% |
| Somchem S355 | <<locked>> | 84% | 55,637 psi | 86% | 2713 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,564 psi | 85% | 2730 fps | 97.7% |
| Somchem S365 | <<locked>> | 92% | 57,392 psi | 88% | 2802 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,651 psi | 86% | 2772 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 56,898 psi | 88% | 2687 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,782 psi | 86% | 2743 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 58,653 psi | 90% | 2802 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 82% | 57,595 psi | 89% | 2684 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 58,624 psi | 90% | 2802 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,782 psi | 87% | 2818 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,869 psi | 87% | 2890 fps | 98.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,446 psi | 81% | 2805 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,288 psi | 85% | 2710 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,319 psi | 88% | 2822 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,708 psi | 84% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,448 psi | 85% | 2766 fps | 99.1% |
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 2700 | <<locked>> | 80% | 53,969 psi | 83% | 2671 fps | 99.4% |
| Accurate 3100 | <<locked>> | 80% | 31,227 psi | 48% | 2306 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 54,317 psi | 84% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,148 psi | 65% | 2552 fps | 99.7% |
| Accurate MAGPRO | 52.4 gr | 90% | 45,063 psi | 69% | 2690 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 50,386 psi | 78% | 2635 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 37,884 psi | 58% | 2484 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 90% | 43,845 psi | 67% | 2638 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 41,989 psi | 65% | 2595 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 94% | 32,909 psi | 51% | 2438 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,474 psi | 79% | 2657 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 54,766 psi | 84% | 2726 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,640 psi | 63% | 2562 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,586 psi | 72% | 2680 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 37,695 psi | 58% | 2480 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,116 psi | 59% | 2530 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,124 psi | 46% | 2339 fps | 98.8% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,023 psi | 46% | 2352 fps | 95.8% |
| Alliant Reloder-26 | 47.1 gr | 80% | 32,387 psi | 50% | 2454 fps | 97.7% |
| Bofors RP15 | <<locked>> | 88% | 37,855 psi | 58% | 2523 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 52,228 psi | 80% | 2671 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 40,190 psi | 62% | 2608 fps | 95.5% |
| Bofors RP5 | <<locked>> | 86% | 38,116 psi | 59% | 2530 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,455 psi | 70% | 2562 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 94% | 40,335 psi | 62% | 2566 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 52,373 psi | 81% | 2690 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,019 psi | 68% | 2602 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 80% | 46,659 psi | 72% | 2615 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,063 psi | 68% | 2592 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,021 psi | 71% | 2628 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,261 psi | 59% | 2457 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,840 psi | 58% | 2598 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,018 psi | 66% | 2618 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,659 psi | 43% | 1522 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,040 psi | 82% | 2664 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,046 psi | 63% | 2497 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,833 psi | 72% | 2589 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,205 psi | 62% | 2503 fps | 99.6% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,120 psi | 66% | 2539 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 90% | 42,061 psi | 65% | 2615 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 53,447 psi | 82% | 2657 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,498 psi | 68% | 2543 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 42,815 psi | 66% | 2530 fps | 98.5% |
| Lovex S071 | <<locked>> | 84% | 30,676 psi | 47% | 2293 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 54,114 psi | 83% | 2710 fps | 100% |
| Norma 204 | <<locked>> | 80% | 40,785 psi | 63% | 2526 fps | 96.1% |
| Norma MRP | <<locked>> | 82% | 34,911 psi | 54% | 2484 fps | 96% |
| Norma URP | <<locked>> | 80% | 41,742 psi | 64% | 2549 fps | 99.7% |
| Ramshot Grand | <<locked>> | 90% | 41,771 psi | 64% | 2625 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,509 psi | 62% | 2539 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 88% | 34,722 psi | 53% | 2448 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,282 psi | 44% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,127 psi | 80% | 2674 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,443 psi | 76% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,945 psi | 65% | 2572 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,422 psi | 62% | 2589 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,664 psi | 53% | 2520 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 55,477 psi | 85% | 2671 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 49,342 psi | 76% | 2625 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 41,959 psi | 65% | 2523 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 82% | 36,985 psi | 57% | 2464 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 45,455 psi | 70% | 2562 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,498 psi | 68% | 2543 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 53,447 psi | 82% | 2657 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,815 psi | 66% | 2530 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,546 psi | 78% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,937 psi | 77% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,410 psi | 67% | 2490 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 36,680 psi | 56% | 2461 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 49,269 psi | 76% | 2621 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,585 psi | 70% | 2566 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,377 psi | 59% | 2507 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,172 psi | 54% | 2398 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 47,210 psi | 73% | 2549 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,960 psi | 66% | 2543 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 86% | 36,999 psi | 57% | 2434 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 54,099 psi | 83% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,496 psi | 65% | 2546 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 33,707 psi | 52% | 2411 fps | 98.8% |
| Vihtavuori N560 | 50.3 gr | 88% | 43,163 psi | 66% | 2651 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 94% | 42,772 psi | 66% | 2631 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,061 psi | 65% | 2510 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,019 psi | 68% | 2602 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,701 psi | 41% | 2336 fps | 98.6% |
| Winchester Supreme 780 | <<locked>> | 84% | 36,782 psi | 57% | 2434 fps | 95% |
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 91 powders for 6.5-06 A-Square loaded with the .264 | 144gr | Lapua MaxRange Target OTM. Alliant Reloder-26 delivers the highest muzzle velocity at 2,933 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,933 fps. ADI AR 2217 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 144.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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. Vihtavuori N560, Accurate MAGPRO, Alliant Reloder-26 rank at the top here: for 6.5-06 A-Square with the .264 | 144gr | Lapua MaxRange Target OTM they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, Vihtavuori N170 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.