Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 119gr | Lehigh Defense Match Solid 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 60, Alliant Reloder-16 and ReloadSwiss RS 70.
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% | 55,434 psi | 89% | 2861 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,621 psi | 88% | 2874 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,995 psi | 80% | 2894 fps | 98.6% |
| Accurate 4064 | <<locked>> | 86% | 55,579 psi | 89% | 2913 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,985 psi | 90% | 3012 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 54,897 psi | 88% | 2940 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,014 psi | 90% | 2943 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 53,708 psi | 86% | 2992 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,868 psi | 88% | 3064 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 53,722 psi | 86% | 2989 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 52,997 psi | 85% | 2913 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 53,345 psi | 86% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 53,156 psi | 85% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,273 psi | 87% | 3041 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,260 psi | 90% | 3035 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,850 psi | 80% | 2972 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,123 psi | 76% | 2917 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,089 psi | 66% | 2818 fps | 97.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,838 psi | 86% | 3110 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,781 psi | 88% | 2956 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 53,867 psi | 86% | 2930 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,850 psi | 80% | 2972 fps | 96.4% |
| Bofors RP7 | <<locked>> | 90% | 53,403 psi | 86% | 2904 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 86% | 54,418 psi | 87% | 2946 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 90% | 56,304 psi | 90% | 3031 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 92% | 53,113 psi | 85% | 2936 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 82% | 55,535 psi | 89% | 2953 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 53,374 psi | 86% | 2936 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,782 psi | 89% | 2989 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 55,027 psi | 88% | 3045 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,129 psi | 58% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,564 psi | 89% | 2936 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,534 psi | 87% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,926 psi | 88% | 2920 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,940 psi | 86% | 2890 fps | 98.4% |
| IMR 4350 | <<locked>> | 94% | 54,331 psi | 87% | 2940 fps | 98.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,042 psi | 88% | 2933 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 53,896 psi | 86% | 2963 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 54,694 psi | 88% | 2963 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,100 psi | 88% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 53,867 psi | 86% | 2864 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,376 psi | 89% | 2917 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,042 psi | 88% | 2933 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 56,289 psi | 90% | 2972 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,452 psi | 66% | 2733 fps | 96.8% |
| Norma 201 | <<locked>> | 82% | 53,534 psi | 86% | 2881 fps | 100% |
| Norma 202 | <<locked>> | 82% | 54,331 psi | 87% | 2884 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,188 psi | 90% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,969 psi | 88% | 2989 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 52,779 psi | 85% | 3058 fps | 98.3% |
| Norma URP | <<locked>> | 94% | 54,853 psi | 88% | 2999 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 84% | 53,185 psi | 85% | 2943 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 53,722 psi | 86% | 2995 fps | 99.1% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,066 psi | 79% | 2930 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,622 psi | 59% | 1880 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,302 psi | 87% | 2923 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 54,157 psi | 87% | 3002 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 53,882 psi | 86% | 3038 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,811 psi | 89% | 3031 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,636 psi | 88% | 3061 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 84% | 54,114 psi | 87% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 53,737 psi | 86% | 2923 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,332 psi | 89% | 2963 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,405 psi | 89% | 3018 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 53,403 psi | 86% | 2904 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,042 psi | 88% | 2933 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,100 psi | 88% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,376 psi | 89% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,289 psi | 90% | 2972 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,550 psi | 89% | 2989 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,898 psi | 90% | 2940 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 53,316 psi | 85% | 2910 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,534 psi | 87% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,230 psi | 89% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,998 psi | 88% | 2884 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,897 psi | 88% | 3015 fps | 97.4% |
| Somchem S335 | <<locked>> | 82% | 54,128 psi | 87% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,753 psi | 89% | 2930 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 53,853 psi | 86% | 2920 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 53,577 psi | 86% | 2999 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,275 psi | 90% | 2999 fps | 98.3% |
| Unknown powder | <<locked>> | 92% | 55,622 psi | 89% | 3005 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 82% | 54,998 psi | 88% | 2802 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 54,389 psi | 87% | 2844 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,650 psi | 88% | 2858 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,317 psi | 89% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 53,592 psi | 86% | 2940 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,428 psi | 78% | 2851 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 84% | 52,997 psi | 85% | 2854 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,115 psi | 90% | 2995 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,634 psi | 84% | 2995 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 53,243 psi | 85% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,304 psi | 90% | 3031 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,525 psi | 68% | 2959 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,752 psi | 88% | 2963 fps | 97.1% |
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% | 48,675 psi | 78% | 2762 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,962 psi | 72% | 2707 fps | 95.8% |
| Accurate 3100 | <<locked>> | 92% | 38,087 psi | 61% | 2661 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 46,064 psi | 74% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,592 psi | 55% | 2598 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 80% | 51,445 psi | 82% | 2884 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,830 psi | 70% | 2733 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 47,195 psi | 76% | 2871 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,863 psi | 77% | 2943 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,963 psi | 75% | 2867 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,976 psi | 71% | 2756 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,021 psi | 75% | 2825 fps | 99.6% |
| Alliant Reloder-16 | 41.4 gr | 80% | 34,171 psi | 55% | 2612 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,479 psi | 62% | 2743 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,354 psi | 74% | 2858 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,557 psi | 75% | 2907 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,340 psi | 45% | 2467 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,216 psi | 58% | 2697 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,896 psi | 56% | 2710 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,039 psi | 82% | 2894 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 44,208 psi | 71% | 2766 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 46,557 psi | 75% | 2907 fps | 95.5% |
| Bofors RP7 | <<locked>> | 82% | 41,756 psi | 67% | 2684 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 44,512 psi | 71% | 2769 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,711 psi | 64% | 2717 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 46,833 psi | 75% | 2825 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 51,996 psi | 83% | 2894 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,604 psi | 51% | 2507 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,658 psi | 73% | 2822 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 41,234 psi | 66% | 2779 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,919 psi | 43% | 1640 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,079 psi | 74% | 2779 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 48,051 psi | 77% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,830 psi | 69% | 2703 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,308 psi | 68% | 2674 fps | 95.9% |
| IMR 4350 | <<locked>> | 86% | 42,076 psi | 67% | 2710 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,538 psi | 65% | 2657 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 32,343 psi | 52% | 2526 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 48,211 psi | 77% | 2854 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 51,517 psi | 83% | 2861 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,517 psi | 81% | 2808 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,977 psi | 74% | 2766 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,087 psi | 61% | 2608 fps | 96% |
| Lovex S070 | <<locked>> | 82% | 38,667 psi | 62% | 2638 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 36,419 psi | 58% | 2625 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 50,415 psi | 81% | 2831 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,879 psi | 82% | 2831 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,369 psi | 74% | 2812 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 48,008 psi | 77% | 2867 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 42,960 psi | 69% | 2867 fps | 96% |
| Norma URP | <<locked>> | 80% | 34,563 psi | 55% | 2595 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 46,572 psi | 75% | 2831 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 38,435 psi | 62% | 2697 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 45,339 psi | 73% | 2858 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,427 psi | 44% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,686 psi | 72% | 2753 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,575 psi | 81% | 2943 fps | 99.8% |
| ReloadSwiss RS 60 | 44.6 gr | 80% | 40,915 psi | 66% | 2805 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,229 psi | 55% | 2612 fps | 95.8% |
| ReloadSwiss RS 70 | 46.4 gr | 82% | 36,071 psi | 58% | 2677 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 48,008 psi | 77% | 2782 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,394 psi | 66% | 2707 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 52,069 psi | 83% | 2907 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 94% | 45,556 psi | 73% | 2844 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 41,756 psi | 67% | 2684 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,087 psi | 61% | 2608 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,517 psi | 83% | 2861 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,977 psi | 74% | 2766 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,667 psi | 62% | 2638 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,569 psi | 68% | 2759 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,344 psi | 84% | 2884 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,951 psi | 80% | 2854 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,300 psi | 82% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,178 psi | 69% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,827 psi | 64% | 2605 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 45,121 psi | 72% | 2838 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 51,068 psi | 82% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,895 psi | 83% | 2871 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 42,047 psi | 67% | 2710 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 31,198 psi | 50% | 2552 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 43,250 psi | 69% | 2766 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 37,391 psi | 60% | 2657 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 80% | 51,779 psi | 83% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,993 psi | 77% | 2749 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,153 psi | 77% | 2762 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,943 psi | 64% | 2638 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,984 psi | 58% | 2598 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 98% | 45,469 psi | 73% | 2799 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 46,557 psi | 75% | 2753 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,462 psi | 57% | 2598 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 31,038 psi | 50% | 2546 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,302 psi | 57% | 2569 fps | 98.6% |
| Winchester 760 | <<locked>> | 80% | 39,711 psi | 64% | 2717 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 28,485 psi | 46% | 2552 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 94% | 47,500 psi | 76% | 2838 fps | 95.4% |
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 | 119gr | Lehigh Defense Match Solid. Alliant Reloder-26 delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,110 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 119.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, 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. ReloadSwiss RS 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 119gr | Lehigh Defense Match Solid 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.