Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 140gr | Berger VLD Hy Tgt bullet and 33 powders. The key underlying parameters are shown in the table above.
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>> | 86% | 34,505 psi | 85% | 2103 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 36,593 psi | 90% | 2142 fps | 98.7% |
| Accurate 4064 | <<locked>> | 88% | 34,838 psi | 86% | 2133 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 82% | 35,491 psi | 87% | 2129 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,463 psi | 90% | 2156 fps | 96.7% |
| Bofors RP3 | <<locked>> | 90% | 35,708 psi | 88% | 2156 fps | 96.6% |
| Hodgdon BL-C2 | <<locked>> | 82% | 34,577 psi | 85% | 2123 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 82% | 35,244 psi | 87% | 2110 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 35,679 psi | 88% | 2162 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,127 psi | 84% | 1388 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 36,419 psi | 90% | 2116 fps | 96.1% |
| IMR 3031 | <<locked>> | 84% | 36,085 psi | 89% | 2162 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 35,085 psi | 86% | 2126 fps | 98.3% |
| Lovex S062 | <<locked>> | 86% | 34,954 psi | 86% | 2093 fps | 96.7% |
| Norma 201 | <<locked>> | 82% | 34,403 psi | 85% | 2067 fps | 96.4% |
| Norma 202 | <<locked>> | 84% | 36,521 psi | 90% | 2126 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,881 psi | 83% | 1414 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 34,534 psi | 85% | 2178 fps | 97.5% |
| Rottweil R 902 | <<locked>> | 84% | 34,693 psi | 85% | 2064 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 92% | 35,650 psi | 88% | 2146 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 35,085 psi | 86% | 2126 fps | 98.3% |
| Shooters World Precision | <<locked>> | 86% | 34,954 psi | 86% | 2093 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 36,622 psi | 90% | 2051 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 35,737 psi | 88% | 2054 fps | 99.5% |
| Somchem S335 | <<locked>> | 82% | 35,665 psi | 88% | 2051 fps | 99.4% |
| Somchem S355 | <<locked>> | 90% | 34,983 psi | 86% | 2116 fps | 95.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 34,113 psi | 84% | 2172 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 82% | 36,506 psi | 90% | 2054 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 35,302 psi | 87% | 2106 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 34,403 psi | 85% | 2070 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 92% | 35,389 psi | 87% | 2106 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 86% | 35,389 psi | 87% | 2106 fps | 98.7% |
| Winchester 748 | <<locked>> | 82% | 35,563 psi | 88% | 2142 fps | 97.7% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 28,514 psi | 70% | 1985 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 34,156 psi | 84% | 2096 fps | 98.1% |
| Accurate 4064 | <<locked>> | 80% | 27,035 psi | 67% | 1965 fps | 97% |
| Alliant AR-Comp | <<locked>> | 80% | 33,040 psi | 81% | 2087 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 32,184 psi | 79% | 2070 fps | 95.2% |
| Bofors RP3 | <<locked>> | 86% | 31,401 psi | 77% | 2070 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 32,300 psi | 80% | 2077 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 80% | 32,938 psi | 81% | 2060 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 33,431 psi | 82% | 2116 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,295 psi | 62% | 1237 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 34,069 psi | 84% | 2070 fps | 95.3% |
| IMR 3031 | <<locked>> | 80% | 31,676 psi | 78% | 2077 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 30,530 psi | 75% | 2034 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 30,893 psi | 76% | 2008 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 32,518 psi | 80% | 2028 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 32,213 psi | 79% | 2041 fps | 98.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,193 psi | 62% | 1263 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 30,371 psi | 75% | 2080 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 30,690 psi | 76% | 1982 fps | 95% |
| Rottweil R 903 | <<locked>> | 90% | 33,634 psi | 83% | 2106 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,530 psi | 75% | 2034 fps | 97% |
| Shooters World Precision | <<locked>> | 82% | 30,893 psi | 76% | 2008 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,156 psi | 84% | 2005 fps | 98.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,673 psi | 68% | 1893 fps | 97.7% |
| Somchem S335 | <<locked>> | 80% | 33,750 psi | 83% | 2014 fps | 99% |
| Somchem S355 | <<locked>> | 88% | 33,040 psi | 81% | 2077 fps | 95% |
| Somchem S365 | <<locked>> | 98% | 32,285 psi | 80% | 2133 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 34,055 psi | 84% | 2011 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 29,109 psi | 72% | 1985 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 30,313 psi | 75% | 1988 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 86% | 29,486 psi | 73% | 1985 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 28,964 psi | 71% | 1972 fps | 96.9% |
| Winchester 748 | <<locked>> | 80% | 33,243 psi | 82% | 2096 fps | 97% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 33 powders for 6.5 x 58 R loaded with the .264 | 140gr | Berger VLD Hy Tgt. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,178 fps; across all powders the maximum-charge window runs from 1,388 fps to 2,178 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 33 of the 33 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 83–90 %, leaving at least 10 % headroom. The 140.0 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, Somchem S365 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.