Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 139gr | Lapua Scenar bullet and 35 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 N150.
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>> | 88% | 36,332 psi | 89% | 2142 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 35,955 psi | 89% | 2136 fps | 98.4% |
| Accurate 4064 | <<locked>> | 90% | 36,230 psi | 89% | 2162 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 36,506 psi | 90% | 2110 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 82% | 34,838 psi | 86% | 2123 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 36,289 psi | 89% | 2156 fps | 96.5% |
| Bofors RP3 | <<locked>> | 90% | 35,085 psi | 86% | 2149 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 84% | 36,405 psi | 90% | 2162 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 35,157 psi | 87% | 2156 fps | 96% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,910 psi | 84% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 35,868 psi | 88% | 2110 fps | 95.7% |
| IMR 3031 | <<locked>> | 84% | 35,433 psi | 87% | 2156 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 36,506 psi | 90% | 2110 fps | 96.8% |
| Lovex D073.6 | <<locked>> | 84% | 34,476 psi | 85% | 2119 fps | 98.1% |
| Lovex S062 | <<locked>> | 88% | 36,390 psi | 90% | 2126 fps | 96.9% |
| Norma 201 | <<locked>> | 84% | 36,216 psi | 89% | 2106 fps | 96.8% |
| Norma 202 | <<locked>> | 84% | 35,911 psi | 88% | 2119 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,171 psi | 84% | 1421 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 36,390 psi | 90% | 2221 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 86% | 36,535 psi | 90% | 2106 fps | 96.9% |
| Rottweil R 903 | <<locked>> | 92% | 35,027 psi | 86% | 2139 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 34,476 psi | 85% | 2119 fps | 98.1% |
| Shooters World Precision | <<locked>> | 88% | 36,390 psi | 90% | 2126 fps | 96.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 35,998 psi | 89% | 2044 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 35,215 psi | 87% | 2047 fps | 99.3% |
| Somchem S335 | <<locked>> | 82% | 35,114 psi | 86% | 2044 fps | 99.2% |
| Somchem S365ᴾ | <<locked>> | 100% | 33,649 psi | 83% | 2165 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 82% | 35,897 psi | 88% | 2051 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 86% | 34,606 psi | 85% | 2100 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 36,201 psi | 89% | 2110 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 92% | 34,824 psi | 86% | 2100 fps | 97% |
| Vihtavuori N530 | <<locked>> | 82% | 36,521 psi | 90% | 2106 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 86% | 34,882 psi | 86% | 2100 fps | 98.5% |
| Winchester 748 | <<locked>> | 82% | 34,969 psi | 86% | 2136 fps | 97.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 36,477 psi | 90% | 2152 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% | 27,934 psi | 69% | 1978 fps | 99.3% |
| Accurate 2520 | <<locked>> | 80% | 33,562 psi | 83% | 2090 fps | 97.8% |
| Accurate 4064 | 21.8 gr | 80% | 26,469 psi | 65% | 1955 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,519 psi | 85% | 2070 fps | 96.2% |
| Alliant AR-Comp | <<locked>> | 80% | 32,416 psi | 80% | 2080 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 31,995 psi | 79% | 2070 fps | 95% |
| Bofors RP3 | <<locked>> | 88% | 33,141 psi | 82% | 2110 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 31,720 psi | 78% | 2070 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 32,909 psi | 81% | 2106 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,034 psi | 62% | 1234 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 33,924 psi | 84% | 2070 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 31,082 psi | 77% | 2070 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 34,519 psi | 85% | 2070 fps | 96.2% |
| Lovex D073.6 | <<locked>> | 80% | 30,284 psi | 75% | 2034 fps | 96.8% |
| Lovex S062 | <<locked>> | 84% | 32,518 psi | 80% | 2047 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 31,981 psi | 79% | 2021 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 31,647 psi | 78% | 2034 fps | 97.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,367 psi | 62% | 1270 fps | 100% |
| ReloadSwiss RS 60 | 25.1 gr | 86% | 29,950 psi | 74% | 2070 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 82% | 32,256 psi | 79% | 2021 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 90% | 33,025 psi | 81% | 2100 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 30,284 psi | 75% | 2034 fps | 96.8% |
| Shooters World Precision | <<locked>> | 84% | 32,518 psi | 80% | 2047 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,997 psi | 84% | 2005 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,528 psi | 68% | 1893 fps | 97.5% |
| Somchem S335 | <<locked>> | 80% | 33,199 psi | 82% | 2008 fps | 98.8% |
| Somchem S365 | <<locked>> | 98% | 31,517 psi | 78% | 2116 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 33,852 psi | 83% | 2014 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 80% | 28,877 psi | 71% | 1985 fps | 99.3% |
| Vihtavuori N140 | <<locked>> | 80% | 29,791 psi | 73% | 1982 fps | 97.6% |
| Vihtavuori N150 | 24.2 gr | 88% | 30,705 psi | 76% | 2018 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 34,055 psi | 84% | 2060 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 80% | 28,790 psi | 71% | 1975 fps | 96.7% |
| Winchester 748 | <<locked>> | 80% | 32,692 psi | 81% | 2087 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 34,490 psi | 85% | 2113 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 35 powders for 6.5 x 58 R loaded with the .264 | 139gr | Lapua Scenar. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,221 fps; across all powders the maximum-charge window runs from 1,385 fps to 2,221 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 35 of the 35 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 139.0 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. ReloadSwiss RS 60, Accurate 4064, Vihtavuori N150 rank at the top here: for 6.5 x 58 R with the .264 | 139gr | Lapua Scenar 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.