Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 90gr | Impala LWHV LS bullet and 25 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Alliant Reloder-17 and Winchester 6.5 StaBALL.
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 4064 | <<locked>> | 82% | 41,452 psi | 87% | 3005 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 41,568 psi | 87% | 3018 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 88% | 41,147 psi | 86% | 3097 fps | 96.5% |
| Bofors RP3 | <<locked>> | 84% | 41,858 psi | 87% | 3031 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,917 psi | 90% | 3064 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,786 psi | 89% | 3087 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 74% | 2057 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,611 psi | 87% | 2995 fps | 96.8% |
| IMR 3031 | <<locked>> | 82% | 42,322 psi | 88% | 3058 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 42,989 psi | 90% | 3068 fps | 96.7% |
| Lovex S062 | <<locked>> | 82% | 41,713 psi | 87% | 2989 fps | 97.6% |
| Norma 203B | <<locked>> | 82% | 41,408 psi | 87% | 3018 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 75% | 2103 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 41,133 psi | 86% | 3114 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 86% | 41,959 psi | 88% | 3025 fps | 97.1% |
| Shooters World Precision | <<locked>> | 82% | 41,713 psi | 87% | 2989 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,627 psi | 89% | 3071 fps | 96.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 41,466 psi | 87% | 2917 fps | 99.8% |
| Somchem S355 | <<locked>> | 86% | 42,511 psi | 89% | 3025 fps | 97% |
| Somchem S365 | <<locked>> | 96% | 42,235 psi | 88% | 3123 fps | 98.4% |
| Vihtavuori N135 | <<locked>> | 82% | 42,554 psi | 89% | 3002 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,714 psi | 89% | 2992 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 92% | 43,279 psi | 90% | 3018 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 42,641 psi | 89% | 3012 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,075 psi | 86% | 2976 fps | 96.7% |
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 4064 | <<locked>> | 80% | 39,001 psi | 81% | 2946 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,854 psi | 77% | 2900 fps | 95.7% |
| Alliant Reloder-17 | 45.8 gr | 86% | 38,754 psi | 81% | 3035 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 36,767 psi | 77% | 2907 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 38,218 psi | 80% | 2953 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,652 psi | 79% | 2963 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,585 psi | 56% | 1844 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,160 psi | 82% | 2936 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 39,653 psi | 83% | 2999 fps | 99.9% |
| IMR 4895 | <<locked>> | 80% | 40,437 psi | 84% | 3005 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 39,233 psi | 82% | 2930 fps | 97% |
| Norma 203B | <<locked>> | 80% | 38,986 psi | 81% | 2959 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,774 psi | 56% | 1883 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,026 psi | 71% | 2913 fps | 96.3% |
| Rottweil R 903 | <<locked>> | 82% | 37,086 psi | 77% | 2907 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 39,233 psi | 82% | 2930 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 39,900 psi | 83% | 3009 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,825 psi | 77% | 2812 fps | 99.2% |
| Somchem S355 | <<locked>> | 82% | 37,739 psi | 79% | 2913 fps | 95.6% |
| Somchem S365 | 44.4 gr | 88% | 33,243 psi | 69% | 2881 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 40,219 psi | 84% | 2953 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,190 psi | 84% | 2936 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 82% | 32,401 psi | 68% | 2749 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 39,943 psi | 83% | 2953 fps | 99% |
| Winchester 6.5 StaBALL | 47 gr | 86% | 36,448 psi | 76% | 2858 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 25 powders for 6.5 x 57 R loaded with the .264 | 90gr | Impala LWHV LS. Somchem S365 delivers the highest muzzle velocity at 3,123 fps; across all powders the maximum-charge window runs from 2,057 fps to 3,123 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 25 of the 25 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Somchem S365, Alliant Reloder-17, Winchester 6.5 StaBALL rank at the top here: for 6.5 x 57 R with the .264 | 90gr | Impala LWHV LS 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.