Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 100gr | Barnes TAC-TX BT bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, Somchem S365 and Hodgdon Hybrid 100V.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 43,033 psi | 90% | 2897 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 40,567 psi | 85% | 2877 fps | 99.8% |
| Accurate 4350 | <<locked>> | 94% | 42,482 psi | 89% | 2976 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 86% | 42,917 psi | 90% | 2904 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,467 psi | 89% | 2927 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,844 psi | 90% | 2940 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,409 psi | 89% | 2992 fps | 96.4% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,453 psi | 89% | 3022 fps | 98.1% |
| Bofors RP3 | <<locked>> | 86% | 42,250 psi | 88% | 2933 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 86% | 43,236 psi | 90% | 2936 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 41,350 psi | 86% | 2923 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,814 psi | 85% | 2930 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,896 psi | 73% | 1949 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 42,482 psi | 89% | 2890 fps | 97.1% |
| IMR 4895 | <<locked>> | 82% | 41,089 psi | 86% | 2913 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 82% | 43,308 psi | 90% | 2933 fps | 99.7% |
| Lovex S062 | <<locked>> | 84% | 41,872 psi | 87% | 2887 fps | 98.6% |
| Norma 203B | <<locked>> | 84% | 42,163 psi | 88% | 2927 fps | 97.5% |
| Norma URP | <<locked>> | 94% | 42,670 psi | 89% | 2976 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 84% | 41,887 psi | 88% | 2940 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,157 psi | 73% | 1991 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,032 psi | 88% | 2986 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,134 psi | 88% | 3031 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 82% | 41,191 psi | 86% | 2851 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 88% | 42,105 psi | 88% | 2923 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 43,308 psi | 90% | 2933 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 41,872 psi | 87% | 2887 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 40,930 psi | 86% | 2923 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,062 psi | 90% | 2920 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,598 psi | 89% | 2825 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 42,902 psi | 90% | 2930 fps | 98.1% |
| Somchem S365 | <<locked>> | 96% | 40,495 psi | 85% | 2976 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 84% | 43,308 psi | 90% | 2897 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,379 psi | 86% | 2848 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 88% | 41,162 psi | 86% | 2858 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 84% | 42,757 psi | 89% | 2890 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,914 psi | 81% | 2943 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,380 psi | 89% | 2900 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,525 psi | 89% | 2923 fps | 98.1% |
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% | 37,362 psi | 78% | 2782 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,346 psi | 74% | 2759 fps | 99.1% |
| Accurate 4350 | <<locked>> | 92% | 39,537 psi | 83% | 2910 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 82% | 37,855 psi | 79% | 2789 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,664 psi | 72% | 2743 fps | 96.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,478 psi | 78% | 2815 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 92% | 39,697 psi | 83% | 2927 fps | 95.4% |
| Alliant Reloder-17 | 43.9 gr | 84% | 34,345 psi | 72% | 2812 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 34,055 psi | 71% | 2740 fps | 96% |
| Hodgdon H380 | <<locked>> | 84% | 40,408 psi | 84% | 2874 fps | 95% |
| Hodgdon Hybrid 100V | 43.4 gr | 90% | 33,910 psi | 71% | 2743 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,145 psi | 80% | 2867 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,759 psi | 54% | 1739 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,144 psi | 78% | 2766 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 38,392 psi | 80% | 2851 fps | 96.4% |
| Lovex D073.6 | <<locked>> | 80% | 40,437 psi | 84% | 2874 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 36,854 psi | 77% | 2769 fps | 97.3% |
| Norma 203B | <<locked>> | 80% | 36,883 psi | 77% | 2805 fps | 95.9% |
| Norma URP | <<locked>> | 92% | 39,856 psi | 83% | 2910 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 36,463 psi | 76% | 2812 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,092 psi | 55% | 1785 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,175 psi | 82% | 2923 fps | 95.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,908 psi | 67% | 2756 fps | 96.8% |
| Rottweil R 902 | <<locked>> | 80% | 38,798 psi | 81% | 2799 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 34,185 psi | 71% | 2736 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,437 psi | 84% | 2874 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 36,854 psi | 77% | 2769 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 35,578 psi | 74% | 2795 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,364 psi | 84% | 2861 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,911 psi | 73% | 2661 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 33,025 psi | 69% | 2690 fps | 95% |
| Somchem S365 | 43.6 gr | 88% | 30,879 psi | 65% | 2720 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 37,927 psi | 79% | 2789 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,957 psi | 81% | 2795 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 31,502 psi | 66% | 2628 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 37,492 psi | 78% | 2776 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 98% | 36,303 psi | 76% | 2877 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 34,374 psi | 72% | 2710 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,798 psi | 83% | 2864 fps | 97.4% |
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 39 powders for 6.5 x 57 R loaded with the .264 | 100gr | Barnes TAC-TX BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,031 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,031 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 39 of the 39 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N555 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-17, Somchem S365, Hodgdon Hybrid 100V rank at the top here: for 6.5 x 57 R with the .264 | 100gr | Barnes TAC-TX BT 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.