Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 130gr | CutEdge Maximus bullet and 95 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-26 and Accurate High Country.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 53,940 psi | 86% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,550 psi | 89% | 2799 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,997 psi | 85% | 2838 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 54,288 psi | 87% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,535 psi | 89% | 2890 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 54,404 psi | 87% | 2979 fps | 97.3% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,622 psi | 89% | 2982 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 54,969 psi | 88% | 2818 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,997 psi | 85% | 2877 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,288 psi | 87% | 2927 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,317 psi | 87% | 2936 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,113 psi | 85% | 2877 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,637 psi | 89% | 2838 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,912 psi | 90% | 2861 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,347 psi | 90% | 2949 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,882 psi | 86% | 2917 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,043 psi | 90% | 2927 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,040 psi | 85% | 2923 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,169 psi | 80% | 2858 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,366 psi | 70% | 2776 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,766 psi | 86% | 2995 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,428 psi | 78% | 2841 fps | 97% |
| Bofors RP3 | <<locked>> | 84% | 52,837 psi | 85% | 2802 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,040 psi | 85% | 2923 fps | 98.1% |
| Bofors RP7 | <<locked>> | 90% | 55,898 psi | 90% | 2841 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 53,374 psi | 86% | 2822 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 53,998 psi | 87% | 2887 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 88% | 53,882 psi | 86% | 2848 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 98% | 54,534 psi | 87% | 2877 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,171 psi | 85% | 2854 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,113 psi | 85% | 2822 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,708 psi | 88% | 2858 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,317 psi | 87% | 2923 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,361 psi | 58% | 1768 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,463 psi | 89% | 2822 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,476 psi | 87% | 2802 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,737 psi | 86% | 2785 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 53,548 psi | 86% | 2822 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,346 psi | 87% | 2822 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 55,912 psi | 90% | 2884 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,708 psi | 86% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,159 psi | 90% | 2867 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,793 psi | 83% | 2900 fps | 96.4% |
| Lovex S060 | <<locked>> | 82% | 55,869 psi | 90% | 2785 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,563 psi | 87% | 2792 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,302 psi | 87% | 2815 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 55,332 psi | 89% | 2854 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,845 psi | 70% | 2684 fps | 98.3% |
| Norma 201 | <<locked>> | 82% | 55,796 psi | 89% | 2805 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,201 psi | 89% | 2848 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,288 psi | 87% | 2877 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 56,391 psi | 90% | 3009 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 54,172 psi | 87% | 2874 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,043 psi | 90% | 2874 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,025 psi | 83% | 2913 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 92% | 53,214 psi | 85% | 2877 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,224 psi | 74% | 2785 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,854 psi | 59% | 1808 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,316 psi | 85% | 2805 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,461 psi | 86% | 2910 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,376 psi | 89% | 2913 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,157 psi | 87% | 2943 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,424 psi | 68% | 2795 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 53,127 psi | 85% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,420 psi | 90% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,853 psi | 88% | 2854 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 98% | 55,230 psi | 89% | 2910 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 55,898 psi | 90% | 2841 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,302 psi | 87% | 2815 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,563 psi | 87% | 2792 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,332 psi | 89% | 2854 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,810 psi | 88% | 2861 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,840 psi | 90% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,331 psi | 87% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 53,795 psi | 86% | 2766 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,752 psi | 88% | 2907 fps | 98.3% |
| Somchem S335 | <<locked>> | 82% | 56,376 psi | 90% | 2733 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 53,127 psi | 85% | 2799 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,881 psi | 85% | 2789 fps | 95.8% |
| Somchem S365 | <<locked>> | 94% | 53,635 psi | 86% | 2881 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,564 psi | 89% | 2884 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 53,548 psi | 86% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,882 psi | 86% | 2736 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,273 psi | 87% | 2772 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,866 psi | 85% | 2818 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 2802 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 55,448 psi | 89% | 2776 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,376 psi | 89% | 2874 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,014 psi | 90% | 2933 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,910 psi | 85% | 2933 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,246 psi | 90% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,331 psi | 87% | 2890 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,208 psi | 72% | 2913 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,869 psi | 90% | 2841 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,883 psi | 90% | 2877 fps | 98.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 50,314 psi | 81% | 2674 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,660 psi | 78% | 2687 fps | 97.7% |
| Accurate 3100 | <<locked>> | 88% | 34,853 psi | 56% | 2497 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 47,703 psi | 76% | 2680 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,419 psi | 58% | 2546 fps | 97.9% |
| Accurate High Country | 52.3 gr | 94% | 47,239 psi | 76% | 2851 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 98% | 51,808 psi | 83% | 2920 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 45,585 psi | 73% | 2664 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,366 psi | 70% | 2700 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 47,529 psi | 76% | 2808 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,314 psi | 81% | 2874 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,569 psi | 70% | 2703 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,064 psi | 74% | 2687 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,255 psi | 79% | 2756 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,853 psi | 57% | 2562 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,669 psi | 65% | 2687 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,062 psi | 69% | 2697 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,337 psi | 69% | 2743 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,831 psi | 41% | 2303 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,533 psi | 54% | 2539 fps | 95.7% |
| Alliant Reloder-26 | 48.2 gr | 84% | 31,894 psi | 51% | 2539 fps | 95.9% |
| Bofors RP15 | <<locked>> | 96% | 42,467 psi | 68% | 2723 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 46,035 psi | 74% | 2694 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,337 psi | 69% | 2743 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 40,712 psi | 65% | 2569 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 46,615 psi | 75% | 2707 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,595 psi | 62% | 2598 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 80% | 41,524 psi | 67% | 2618 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 50,865 psi | 82% | 2815 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,908 psi | 80% | 2799 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,228 psi | 53% | 2454 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,169 psi | 82% | 2802 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 37,521 psi | 60% | 2602 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,108 psi | 43% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,909 psi | 83% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,906 psi | 77% | 2697 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,299 psi | 81% | 2726 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 38,899 psi | 62% | 2549 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,322 psi | 68% | 2605 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,099 psi | 56% | 2503 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 50,517 psi | 81% | 2785 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,516 psi | 79% | 2756 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 48,298 psi | 77% | 2835 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 52,649 psi | 84% | 2736 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,022 psi | 77% | 2694 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,436 psi | 63% | 2546 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 37,739 psi | 61% | 2526 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 33,736 psi | 54% | 2467 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 52,199 psi | 84% | 2749 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,602 psi | 78% | 2743 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,164 psi | 71% | 2697 fps | 95.6% |
| Norma MRP | <<locked>> | 88% | 36,999 psi | 59% | 2635 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 36,390 psi | 58% | 2543 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 80% | 48,747 psi | 78% | 2762 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,341 psi | 78% | 2848 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 35,389 psi | 57% | 2530 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 96% | 39,726 psi | 64% | 2651 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 44% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,775 psi | 75% | 2694 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,279 psi | 69% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,216 psi | 58% | 2562 fps | 97.6% |
| ReloadSwiss RS 70 | 45.4 gr | 80% | 35,215 psi | 56% | 2566 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,363 psi | 63% | 2723 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 49,690 psi | 80% | 2703 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,366 psi | 70% | 2641 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,211 psi | 77% | 2740 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 90% | 41,959 psi | 67% | 2674 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,712 psi | 65% | 2569 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,436 psi | 63% | 2546 fps | 97.5% |
| Shooters World Precision | <<locked>> | 80% | 48,022 psi | 77% | 2694 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,739 psi | 61% | 2526 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,846 psi | 72% | 2697 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,330 psi | 84% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,802 psi | 72% | 2556 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,783 psi | 62% | 2497 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,568 psi | 67% | 2667 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 52,808 psi | 85% | 2684 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,685 psi | 70% | 2641 fps | 99.9% |
| Somchem S361 | <<locked>> | 92% | 49,501 psi | 79% | 2733 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 32,706 psi | 52% | 2497 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 39,755 psi | 64% | 2598 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 49,966 psi | 80% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,401 psi | 81% | 2684 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,829 psi | 67% | 2572 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,898 psi | 61% | 2549 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,378 psi | 63% | 2582 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 48,646 psi | 78% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,231 psi | 60% | 2546 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,355 psi | 45% | 2379 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 96% | 49,385 psi | 79% | 2871 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,985 psi | 59% | 2516 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,595 psi | 62% | 2598 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,063 psi | 42% | 2392 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,286 psi | 84% | 2789 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,250 psi | 68% | 2648 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 95 powders for 6.5 x 64 Brenneke loaded with the .264 | 130gr | CutEdge Maximus. Norma MRP delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,768 fps to 3,009 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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-26, Accurate High Country rank at the top here: for 6.5 x 64 Brenneke with the .264 | 130gr | CutEdge Maximus 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.