Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 123gr | Warner Tool Co. Flat Line bullet and 93 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 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>> | 82% | 53,388 psi | 86% | 2789 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 54,795 psi | 88% | 2851 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,083 psi | 84% | 2887 fps | 99.1% |
| Accurate 4064 | <<locked>> | 84% | 53,940 psi | 86% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 54,288 psi | 87% | 2943 fps | 99.9% |
| Accurate High Country | <<locked>> | 98% | 53,098 psi | 85% | 3025 fps | 96.4% |
| ADI AR 2206H | <<locked>> | 82% | 56,405 psi | 90% | 2920 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,186 psi | 87% | 2874 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 55,288 psi | 89% | 2979 fps | 97.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 52,852 psi | 85% | 2986 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 55,347 psi | 89% | 2976 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 54,839 psi | 88% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,824 psi | 88% | 2913 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,129 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 56,434 psi | 90% | 3028 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 54,563 psi | 87% | 2966 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2966 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,733 psi | 78% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,641 psi | 68% | 2818 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,231 psi | 90% | 3104 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 56,260 psi | 90% | 2936 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,413 psi | 76% | 2884 fps | 96% |
| Bofors RP3 | <<locked>> | 86% | 55,535 psi | 89% | 2910 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,880 psi | 83% | 2966 fps | 97.3% |
| Bofors RP7 | <<locked>> | 90% | 54,795 psi | 88% | 2887 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 86% | 55,970 psi | 90% | 2927 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 53,026 psi | 85% | 2936 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 88% | 53,011 psi | 85% | 2897 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 55,448 psi | 89% | 2923 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 53,447 psi | 86% | 2910 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 53,055 psi | 85% | 2972 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 58% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 54,360 psi | 87% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 53,461 psi | 86% | 2854 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,246 psi | 90% | 2890 fps | 99% |
| IMR 4350 | <<locked>> | 94% | 55,811 psi | 89% | 2923 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 53,258 psi | 85% | 2867 fps | 98.5% |
| IMR 4831 | <<locked>> | 94% | 54,578 psi | 88% | 2930 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 56,289 psi | 90% | 2946 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 54,853 psi | 88% | 2907 fps | 95.8% |
| Lovex S060 | <<locked>> | 82% | 55,172 psi | 88% | 2841 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 53,621 psi | 86% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 53,272 psi | 85% | 2864 fps | 99.4% |
| Lovex S070 | <<locked>> | 92% | 54,578 psi | 88% | 2907 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,250 psi | 69% | 2730 fps | 97.6% |
| Norma 201 | <<locked>> | 82% | 54,955 psi | 88% | 2861 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,811 psi | 89% | 2861 fps | 100% |
| Norma 203B | <<locked>> | 84% | 54,128 psi | 87% | 2900 fps | 100% |
| Norma 204 | <<locked>> | 92% | 52,939 psi | 85% | 2917 fps | 97.1% |
| Norma MRPᴾ | <<locked>> | 100% | 54,926 psi | 88% | 3054 fps | 99% |
| Norma URP | <<locked>> | 92% | 53,156 psi | 85% | 2927 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 55,100 psi | 88% | 2930 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 55,361 psi | 89% | 2979 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,005 psi | 72% | 2818 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,825 psi | 59% | 1854 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,782 psi | 89% | 2907 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,898 psi | 90% | 2986 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,014 psi | 90% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 54,259 psi | 87% | 2966 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 56,333 psi | 90% | 3048 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 55,608 psi | 89% | 2861 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 55,680 psi | 89% | 2910 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 53,563 psi | 86% | 2894 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 98% | 53,708 psi | 86% | 2953 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 54,795 psi | 88% | 2887 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 53,272 psi | 85% | 2864 fps | 99.4% |
| Shooters World Precision | <<locked>> | 84% | 53,621 psi | 86% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 54,578 psi | 88% | 2907 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 53,563 psi | 86% | 2913 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 54,737 psi | 88% | 2890 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,898 psi | 90% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 53,359 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 52,823 psi | 85% | 2812 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 53,229 psi | 85% | 2946 fps | 97.5% |
| Somchem S335 | <<locked>> | 82% | 55,477 psi | 89% | 2789 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 55,390 psi | 89% | 2900 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 55,854 psi | 90% | 2982 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 54,563 psi | 87% | 2930 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 82% | 56,391 psi | 90% | 2776 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,956 psi | 90% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 56,101 psi | 90% | 2835 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 53,505 psi | 86% | 2828 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 55,245 psi | 89% | 2923 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,285 psi | 81% | 2848 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 84% | 54,418 psi | 87% | 2831 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 54,418 psi | 87% | 2927 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 54,549 psi | 87% | 2982 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,361 psi | 89% | 3038 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,766 psi | 88% | 2887 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 53,026 psi | 85% | 2936 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,019 psi | 71% | 2953 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,708 psi | 88% | 2894 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,679 psi | 88% | 2923 fps | 97.5% |
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% | 50,154 psi | 80% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,153 psi | 77% | 2736 fps | 97% |
| Accurate 3100 | <<locked>> | 90% | 36,869 psi | 59% | 2598 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 47,500 psi | 76% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,911 psi | 58% | 2592 fps | 97.2% |
| Accurate High Country | <<locked>> | 96% | 49,530 psi | 79% | 2959 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 52,837 psi | 85% | 2864 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,759 psi | 72% | 2710 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 45,426 psi | 73% | 2802 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 49,371 psi | 79% | 2927 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,556 psi | 73% | 2802 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,252 psi | 73% | 2740 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 48,385 psi | 78% | 2808 fps | 99.8% |
| Alliant Reloder-16 | 41.6 gr | 80% | 35,259 psi | 57% | 2605 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,784 psi | 64% | 2733 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 45,005 psi | 72% | 2792 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 45,252 psi | 73% | 2844 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,427 psi | 44% | 2402 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 94% | 35,215 psi | 56% | 2635 fps | 95.6% |
| Alliant Reloder-26 | 49.3 gr | 86% | 33,605 psi | 54% | 2641 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,475 psi | 84% | 2877 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 44,338 psi | 71% | 2825 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 45,629 psi | 73% | 2753 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 45,252 psi | 73% | 2844 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 40,161 psi | 64% | 2615 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 45,861 psi | 74% | 2756 fps | 99% |
| Hodgdon H414 | <<locked>> | 82% | 40,538 psi | 65% | 2697 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 43,526 psi | 70% | 2720 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,706 psi | 52% | 2500 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,009 psi | 80% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 39,581 psi | 63% | 2707 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 43% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,198 psi | 82% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,065 psi | 75% | 2746 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 49,458 psi | 79% | 2776 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,814 psi | 65% | 2648 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,597 psi | 67% | 2648 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 34,577 psi | 55% | 2546 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 49,617 psi | 80% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 51,677 psi | 83% | 2851 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 51,779 psi | 83% | 2789 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 47,297 psi | 76% | 2746 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,204 psi | 63% | 2598 fps | 96.8% |
| Lovex S070 | <<locked>> | 80% | 37,304 psi | 60% | 2572 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 35,462 psi | 57% | 2566 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 51,779 psi | 83% | 2812 fps | 100% |
| Norma 202 | <<locked>> | 80% | 52,286 psi | 84% | 2808 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,732 psi | 77% | 2795 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 46,224 psi | 74% | 2795 fps | 95.4% |
| Norma MRP | <<locked>> | 90% | 38,798 psi | 62% | 2736 fps | 95% |
| Norma URP | <<locked>> | 80% | 35,737 psi | 57% | 2589 fps | 97% |
| Ramshot Big Game | <<locked>> | 80% | 48,008 psi | 77% | 2815 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 37,159 psi | 60% | 2631 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 98% | 41,916 psi | 67% | 2756 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,644 psi | 44% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,963 psi | 74% | 2740 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 52,199 psi | 84% | 2927 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,293 psi | 68% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,534 psi | 57% | 2605 fps | 96.7% |
| ReloadSwiss RS 70 | 45.5 gr | 80% | 34,824 psi | 56% | 2612 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 49,327 psi | 79% | 2762 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,743 psi | 69% | 2690 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 50,401 psi | 81% | 2841 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 92% | 43,947 psi | 70% | 2776 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 40,161 psi | 64% | 2615 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,204 psi | 63% | 2598 fps | 96.8% |
| Shooters World Precision | <<locked>> | 80% | 47,297 psi | 76% | 2746 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,304 psi | 60% | 2572 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,932 psi | 70% | 2746 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 51,314 psi | 82% | 2835 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 52,576 psi | 84% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,382 psi | 71% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,319 psi | 61% | 2539 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 43,526 psi | 70% | 2769 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 52,359 psi | 84% | 2746 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,323 psi | 69% | 2697 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 32,372 psi | 52% | 2546 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 41,989 psi | 67% | 2703 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 53,127 psi | 85% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 49,458 psi | 79% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 49,501 psi | 79% | 2740 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,162 psi | 66% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,202 psi | 60% | 2589 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 96% | 43,888 psi | 70% | 2733 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 47,848 psi | 77% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,637 psi | 59% | 2589 fps | 97% |
| Vihtavuori N555 | <<locked>> | 82% | 30,095 psi | 48% | 2480 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 98% | 51,750 psi | 83% | 2976 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,361 psi | 58% | 2559 fps | 99.1% |
| Winchester 760 | <<locked>> | 80% | 38,130 psi | 61% | 2644 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 86% | 27,586 psi | 44% | 2493 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 51,242 psi | 82% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 44,266 psi | 71% | 2743 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 93 powders for 6.5 x 64 Brenneke loaded with the .264 | 123gr | Warner Tool Co. Flat Line. Alliant Reloder-26 delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,104 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 123.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. ReloadSwiss RS 70, Alliant Reloder-16, Alliant Reloder-26 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 123gr | Warner Tool Co. Flat Line 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.