Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 130gr | Swift Scirocco bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and Vihtavuori N540.
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 2015 | <<locked>> | 82% | 36,564 psi | 90% | 2165 fps | 99.9% |
| Accurate 2495 | <<locked>> | 88% | 34,461 psi | 85% | 2195 fps | 99.9% |
| Accurate 2520 | <<locked>> | 82% | 34,650 psi | 85% | 2195 fps | 97.5% |
| Accurate 4064 | <<locked>> | 90% | 34,722 psi | 86% | 2218 fps | 98.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 35,549 psi | 88% | 2169 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 84% | 35,853 psi | 88% | 2228 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 36,071 psi | 89% | 2247 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 84% | 35,027 psi | 86% | 2218 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,562 psi | 83% | 1440 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 36,361 psi | 90% | 2260 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 82% | 35,549 psi | 88% | 2169 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 86% | 35,534 psi | 88% | 2224 fps | 97.8% |
| Lovex S062 | <<locked>> | 88% | 35,172 psi | 87% | 2182 fps | 95.9% |
| Norma 201 | <<locked>> | 84% | 34,751 psi | 86% | 2156 fps | 95.7% |
| Norma 202 | <<locked>> | 84% | 34,853 psi | 86% | 2178 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,736 psi | 83% | 1476 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,998 psi | 86% | 2267 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 82% | 36,303 psi | 89% | 2169 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 86% | 35,041 psi | 86% | 2156 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 35,534 psi | 88% | 2224 fps | 97.8% |
| Shooters World Precision | <<locked>> | 88% | 35,172 psi | 87% | 2182 fps | 95.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 34,838 psi | 86% | 2100 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 36,158 psi | 89% | 2146 fps | 99.1% |
| Somchem S335 | <<locked>> | 84% | 36,114 psi | 89% | 2146 fps | 99% |
| Vihtavuori N133 | <<locked>> | 82% | 34,621 psi | 85% | 2110 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 88% | 35,520 psi | 87% | 2198 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 86% | 35,056 psi | 86% | 2169 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 94% | 35,868 psi | 88% | 2198 fps | 96.6% |
| Vihtavuori N530 | <<locked>> | 82% | 35,041 psi | 86% | 2159 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 88% | 35,549 psi | 88% | 2195 fps | 98.2% |
| Winchester 748 | <<locked>> | 84% | 36,172 psi | 89% | 2238 fps | 97% |
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 2015 | <<locked>> | 80% | 34,156 psi | 84% | 2123 fps | 99.7% |
| Accurate 2495 | <<locked>> | 80% | 26,643 psi | 66% | 2024 fps | 98.5% |
| Accurate 2520 | <<locked>> | 80% | 32,372 psi | 80% | 2149 fps | 96.9% |
| Accurate 4064 | 22.3 gr | 80% | 25,251 psi | 62% | 2001 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 33,243 psi | 82% | 2123 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 31,502 psi | 78% | 2146 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 33,649 psi | 83% | 2198 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 82% | 32,764 psi | 81% | 2172 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,932 psi | 61% | 1286 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,863 psi | 74% | 2119 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 33,243 psi | 82% | 2123 fps | 95% |
| Lovex D073.6 | <<locked>> | 80% | 28,892 psi | 71% | 2080 fps | 95.5% |
| Lovex S062 | <<locked>> | 86% | 33,286 psi | 82% | 2142 fps | 95.2% |
| Norma 201 | <<locked>> | 82% | 32,895 psi | 81% | 2116 fps | 95% |
| Norma 202 | <<locked>> | 80% | 30,400 psi | 75% | 2087 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,787 psi | 61% | 1312 fps | 100% |
| ReloadSwiss RS 60 | 26.9 gr | 90% | 32,837 psi | 81% | 2215 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 34,389 psi | 85% | 2129 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 33,170 psi | 82% | 2116 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,892 psi | 71% | 2080 fps | 95.5% |
| Shooters World Precision | <<locked>> | 86% | 33,286 psi | 82% | 2142 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,866 psi | 81% | 2060 fps | 97.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,629 psi | 66% | 1942 fps | 96.4% |
| Somchem S335 | <<locked>> | 80% | 32,053 psi | 79% | 2064 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 32,735 psi | 81% | 2070 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 27,731 psi | 68% | 2037 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 28,993 psi | 71% | 2037 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 90% | 31,691 psi | 78% | 2113 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 33,141 psi | 82% | 2119 fps | 95% |
| Vihtavuori N540 | 23.3 gr | 80% | 27,644 psi | 68% | 2021 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 31,705 psi | 78% | 2142 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 31 powders for 6.5 x 58 R loaded with the .264 | 130gr | Swift Scirocco. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,267 fps; across all powders the maximum-charge window runs from 1,440 fps to 2,267 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 31 of the 31 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 130.0 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. ReloadSwiss RS 60, Accurate 4064, Vihtavuori N540 rank at the top here: for 6.5 x 58 R with the .264 | 130gr | Swift Scirocco 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.