Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 140gr | Speer Gold Dot bullet and 30 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Bofors RP3 and Rottweil R 903.
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% | 34,635 psi | 85% | 2123 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 34,882 psi | 86% | 2149 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,550 psi | 90% | 2178 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 36,550 psi | 90% | 2241 fps | 96.2% |
| Bofors RP3 | <<locked>> | 88% | 35,810 psi | 88% | 2178 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 35,462 psi | 87% | 2165 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 35,578 psi | 88% | 2185 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,156 psi | 84% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 36,129 psi | 89% | 2136 fps | 96.5% |
| IMR 3031 | <<locked>> | 82% | 36,143 psi | 89% | 2182 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 36,027 psi | 89% | 2175 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 82% | 34,983 psi | 86% | 2146 fps | 98.6% |
| Lovex S062 | <<locked>> | 84% | 34,838 psi | 86% | 2113 fps | 97.1% |
| Norma 201 | <<locked>> | 82% | 36,230 psi | 89% | 2126 fps | 97.4% |
| Norma 202 | <<locked>> | 82% | 36,434 psi | 90% | 2146 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,418 psi | 85% | 1444 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 36,695 psi | 90% | 2254 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 82% | 34,650 psi | 85% | 2087 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 90% | 36,129 psi | 89% | 2175 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 34,983 psi | 86% | 2146 fps | 98.6% |
| Shooters World Precision | <<locked>> | 84% | 34,838 psi | 86% | 2113 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 35,462 psi | 87% | 2070 fps | 99.6% |
| Somchem S341 | <<locked>> | 82% | 36,405 psi | 90% | 2146 fps | 95.8% |
| Somchem S355 | <<locked>> | 88% | 35,070 psi | 86% | 2139 fps | 96.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,477 psi | 90% | 2251 fps | 97.8% |
| Vihtavuori N135 | <<locked>> | 84% | 35,360 psi | 87% | 2123 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 36,593 psi | 90% | 2129 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 90% | 35,679 psi | 88% | 2133 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 84% | 35,041 psi | 86% | 2119 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 34,635 psi | 85% | 2136 fps | 96.1% |
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% | 30,632 psi | 75% | 2044 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 28,979 psi | 71% | 2028 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 30,443 psi | 75% | 2054 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 90% | 34,360 psi | 85% | 2192 fps | 95.3% |
| Bofors RP3 | 25.2 gr | 84% | 31,386 psi | 77% | 2087 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 33,301 psi | 82% | 2119 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 31,125 psi | 77% | 2087 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,338 psi | 62% | 1257 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 33,895 psi | 83% | 2090 fps | 95.7% |
| IMR 3031 | <<locked>> | 80% | 33,736 psi | 83% | 2139 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 33,808 psi | 83% | 2129 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 80% | 32,764 psi | 81% | 2100 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 30,647 psi | 75% | 2024 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 34,389 psi | 85% | 2087 fps | 96.9% |
| Norma 202 | <<locked>> | 80% | 34,113 psi | 84% | 2100 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,672 psi | 63% | 1289 fps | 100% |
| ReloadSwiss RS 60 | 25.6 gr | 82% | 28,442 psi | 70% | 2054 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 32,489 psi | 80% | 2041 fps | 96.2% |
| Rottweil R 903 | 25.3 gr | 86% | 31,647 psi | 78% | 2087 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,764 psi | 81% | 2100 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 30,647 psi | 75% | 2024 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,414 psi | 72% | 1952 fps | 98.5% |
| Somchem S341 | <<locked>> | 80% | 34,200 psi | 84% | 2100 fps | 95.1% |
| Somchem S355 | <<locked>> | 86% | 32,880 psi | 81% | 2096 fps | 95.4% |
| Somchem S365 | <<locked>> | 94% | 30,298 psi | 75% | 2113 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 31,227 psi | 77% | 2047 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 32,111 psi | 79% | 2044 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 29,356 psi | 72% | 2005 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 30,908 psi | 76% | 2034 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 32,547 psi | 80% | 2093 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 30 powders for 6.5 x 58 R loaded with the .264 | 140gr | Speer Gold Dot. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,254 fps; across all powders the maximum-charge window runs from 1,407 fps to 2,254 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 30 of the 30 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 84–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 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. ReloadSwiss RS 60, Bofors RP3, Rottweil R 903 rank at the top here: for 6.5 x 58 R with the .264 | 140gr | Speer Gold Dot 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.