Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 124gr | Peregrine VLR-4 bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 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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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>> | 84% | 56,028 psi | 90% | 2822 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,520 psi | 87% | 2844 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,401 psi | 82% | 2874 fps | 99.1% |
| Accurate 4064 | <<locked>> | 84% | 52,953 psi | 85% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 53,766 psi | 86% | 2933 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 52,692 psi | 84% | 3015 fps | 96.5% |
| ADI AR 2206H | <<locked>> | 82% | 55,883 psi | 90% | 2910 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 53,780 psi | 86% | 2864 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,390 psi | 89% | 2979 fps | 97.8% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 52,837 psi | 85% | 2963 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,794 psi | 85% | 2982 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 55,100 psi | 88% | 2972 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,302 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,592 psi | 88% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,998 psi | 88% | 2995 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 56,260 psi | 90% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,259 psi | 87% | 2959 fps | 97.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,488 psi | 83% | 2959 fps | 97.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,631 psi | 78% | 2897 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,148 psi | 68% | 2805 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,101 psi | 90% | 3097 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,101 psi | 90% | 2930 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,007 psi | 75% | 2874 fps | 96.1% |
| Bofors RP3 | <<locked>> | 86% | 55,085 psi | 88% | 2904 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,488 psi | 83% | 2959 fps | 97.4% |
| Bofors RP7 | <<locked>> | 90% | 54,534 psi | 87% | 2884 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 86% | 55,651 psi | 89% | 2920 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 56,362 psi | 90% | 2989 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 56,391 psi | 90% | 2949 fps | 98.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 55,506 psi | 89% | 2953 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,187 psi | 88% | 2917 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,272 psi | 85% | 2904 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 52,707 psi | 85% | 2963 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,230 psi | 58% | 1811 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,273 psi | 87% | 2871 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,316 psi | 85% | 2848 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,796 psi | 89% | 2881 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,608 psi | 89% | 2920 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,113 psi | 85% | 2861 fps | 98.6% |
| IMR 4831 | <<locked>> | 94% | 54,520 psi | 87% | 2927 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,043 psi | 90% | 2936 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,911 psi | 88% | 2907 fps | 96% |
| Lovex D073.6 | <<locked>> | 82% | 56,362 psi | 90% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,824 psi | 88% | 2835 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,359 psi | 86% | 2841 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 56,144 psi | 90% | 2910 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 54,172 psi | 87% | 2900 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,569 psi | 68% | 2717 fps | 97.6% |
| Norma 201 | <<locked>> | 82% | 54,636 psi | 88% | 2854 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,317 psi | 89% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 84% | 53,882 psi | 86% | 2894 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,391 psi | 90% | 2969 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 54,911 psi | 88% | 3051 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 56,231 psi | 90% | 2972 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 54,882 psi | 88% | 2923 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 55,071 psi | 88% | 2972 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,715 psi | 72% | 2812 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,695 psi | 59% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,506 psi | 89% | 2904 fps | 99.4% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,738 psi | 89% | 2979 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,840 psi | 90% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 53,824 psi | 86% | 2956 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 56,420 psi | 90% | 3045 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,230 psi | 89% | 2854 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,940 psi | 88% | 2897 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,287 psi | 85% | 2887 fps | 96.3% |
| Rottweil R 905 | <<locked>> | 98% | 53,374 psi | 86% | 2946 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 54,534 psi | 87% | 2884 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 56,144 psi | 90% | 2910 fps | 99.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 56,362 psi | 90% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 53,359 psi | 86% | 2841 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,172 psi | 87% | 2900 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,345 psi | 86% | 2907 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,563 psi | 87% | 2884 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,477 psi | 89% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,229 psi | 85% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 56,086 psi | 90% | 2861 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 52,910 psi | 85% | 2940 fps | 97.6% |
| Somchem S335 | <<locked>> | 82% | 55,259 psi | 89% | 2782 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,042 psi | 88% | 2894 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,027 psi | 88% | 2881 fps | 95.8% |
| Somchem S365 | <<locked>> | 96% | 55,608 psi | 89% | 2976 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,085 psi | 87% | 2923 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 82% | 56,043 psi | 90% | 2766 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,405 psi | 89% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,927 psi | 90% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 52,910 psi | 85% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,955 psi | 88% | 2913 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,893 psi | 80% | 2838 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 84% | 54,172 psi | 87% | 2825 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,070 psi | 87% | 2920 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,375 psi | 87% | 2976 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,332 psi | 89% | 3038 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,810 psi | 88% | 2884 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,040 psi | 85% | 2933 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,743 psi | 70% | 2946 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,491 psi | 87% | 2887 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2920 fps | 97.6% |
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% | 49,110 psi | 79% | 2723 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,558 psi | 76% | 2726 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 36,172 psi | 58% | 2582 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 46,528 psi | 75% | 2730 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,099 psi | 56% | 2572 fps | 97.1% |
| Accurate High Country | <<locked>> | 96% | 49,124 psi | 79% | 2949 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 52,330 psi | 84% | 2854 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,628 psi | 72% | 2707 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 45,121 psi | 72% | 2795 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 49,298 psi | 79% | 2897 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,240 psi | 79% | 2923 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,266 psi | 73% | 2795 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,730 psi | 72% | 2726 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,834 psi | 77% | 2795 fps | 99.8% |
| Alliant Reloder-16 | 42 gr | 80% | 34,737 psi | 56% | 2592 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,479 psi | 63% | 2726 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,672 psi | 72% | 2785 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,860 psi | 72% | 2835 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,905 psi | 43% | 2385 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,737 psi | 56% | 2625 fps | 95.6% |
| Alliant Reloder-26 | 49.9 gr | 86% | 33,243 psi | 53% | 2628 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,315 psi | 84% | 2871 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 44,179 psi | 71% | 2818 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 44,860 psi | 72% | 2736 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 44,860 psi | 72% | 2835 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,581 psi | 63% | 2602 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 45,498 psi | 73% | 2749 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 37,550 psi | 60% | 2628 fps | 95% |
| Hodgdon H4350 | <<locked>> | 82% | 43,323 psi | 69% | 2713 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 51,793 psi | 83% | 2890 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,140 psi | 52% | 2484 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,850 psi | 80% | 2848 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,189 psi | 63% | 2697 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,847 psi | 43% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,807 psi | 81% | 2818 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,934 psi | 75% | 2743 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,313 psi | 79% | 2772 fps | 98.1% |
| IMR 4350 | <<locked>> | 84% | 40,538 psi | 65% | 2641 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,176 psi | 66% | 2638 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,113 psi | 55% | 2533 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 49,095 psi | 79% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,416 psi | 82% | 2848 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 80% | 52,707 psi | 85% | 2831 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,706 psi | 83% | 2785 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,007 psi | 75% | 2740 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,566 psi | 62% | 2585 fps | 96.8% |
| Lovex S070 | <<locked>> | 80% | 36,840 psi | 59% | 2562 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 34,766 psi | 56% | 2549 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 51,126 psi | 82% | 2799 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,793 psi | 83% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,210 psi | 76% | 2782 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,948 psi | 74% | 2789 fps | 95.6% |
| Norma MRP | <<locked>> | 90% | 38,305 psi | 61% | 2723 fps | 95% |
| Norma URP | <<locked>> | 80% | 35,389 psi | 57% | 2579 fps | 97% |
| Ramshot Big Game | <<locked>> | 80% | 47,761 psi | 77% | 2808 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,782 psi | 59% | 2621 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 41,626 psi | 67% | 2746 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 44% | 1654 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,658 psi | 73% | 2733 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,677 psi | 83% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,047 psi | 67% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,070 psi | 56% | 2592 fps | 96.7% |
| ReloadSwiss RS 70 | 46 gr | 80% | 34,432 psi | 55% | 2598 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 48,689 psi | 78% | 2753 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,264 psi | 68% | 2684 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 50,125 psi | 80% | 2835 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 92% | 43,584 psi | 70% | 2766 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 39,581 psi | 63% | 2602 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,566 psi | 62% | 2585 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,707 psi | 85% | 2831 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 47,007 psi | 75% | 2740 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,840 psi | 59% | 2562 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,424 psi | 70% | 2736 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,879 psi | 82% | 2825 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,170 psi | 84% | 2736 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,961 psi | 70% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,652 psi | 60% | 2526 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,163 psi | 69% | 2759 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 51,822 psi | 83% | 2736 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,685 psi | 68% | 2684 fps | 99.8% |
| Somchem S361 | <<locked>> | 94% | 51,576 psi | 83% | 2825 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 31,705 psi | 51% | 2526 fps | 98.9% |
| Somchem S385 | <<locked>> | 90% | 41,524 psi | 67% | 2694 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 52,765 psi | 85% | 2723 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,921 psi | 78% | 2720 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,313 psi | 79% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,828 psi | 65% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,651 psi | 59% | 2579 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 96% | 43,714 psi | 70% | 2726 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 80% | 47,558 psi | 76% | 2726 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,216 psi | 58% | 2579 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 29,501 psi | 47% | 2464 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 98% | 51,358 psi | 82% | 2969 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,984 psi | 58% | 2549 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 37,550 psi | 60% | 2628 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,006 psi | 43% | 2470 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,010 psi | 82% | 2835 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,874 psi | 70% | 2733 fps | 95.1% |
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 98 powders for 6.5 x 64 Brenneke loaded with the .264 | 124gr | Peregrine VLR-4. Alliant Reloder-26 delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,811 fps to 3,097 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 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 124.0 gr projectile in 0.264" calls for a 1:8.0 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. Alliant Reloder-16, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 124gr | Peregrine VLR-4 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.