Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 120gr | Lapua ScenarL bullet and 20 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 4064, Vihtavuori N135 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% | 35,650 psi | 88% | 2260 fps | 99.6% |
| Accurate 2495 | <<locked>> | 90% | 36,129 psi | 89% | 2336 fps | 99.8% |
| Accurate 2520 | <<locked>> | 84% | 36,230 psi | 89% | 2336 fps | 97.4% |
| Accurate 4064 | <<locked>> | 92% | 36,245 psi | 89% | 2359 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 84% | 35,085 psi | 86% | 2329 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,402 psi | 82% | 1519 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 35,491 psi | 87% | 2356 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 86% | 34,664 psi | 85% | 2316 fps | 97% |
| Norma 202 | <<locked>> | 86% | 36,332 psi | 89% | 2320 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,518 psi | 83% | 1558 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 35,795 psi | 88% | 2270 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,664 psi | 85% | 2316 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 36,332 psi | 89% | 2238 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 35,244 psi | 87% | 2238 fps | 98.6% |
| Somchem S335 | <<locked>> | 84% | 35,781 psi | 88% | 2247 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 84% | 36,071 psi | 89% | 2244 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 88% | 35,012 psi | 86% | 2303 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 88% | 36,361 psi | 90% | 2303 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 88% | 35,114 psi | 86% | 2293 fps | 97.5% |
| Winchester 748 | <<locked>> | 84% | 35,433 psi | 87% | 2333 fps | 96.2% |
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% | 33,721 psi | 83% | 2221 fps | 99.3% |
| Accurate 2495 | <<locked>> | 80% | 26,136 psi | 64% | 2113 fps | 97.8% |
| Accurate 2520 | <<locked>> | 80% | 31,502 psi | 78% | 2234 fps | 95.9% |
| Accurate 4064 | 24.1 gr | 82% | 26,455 psi | 65% | 2133 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 30,719 psi | 76% | 2238 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,801 psi | 61% | 1358 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,472 psi | 73% | 2218 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 82% | 30,400 psi | 75% | 2221 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 29,921 psi | 74% | 2178 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,613 psi | 61% | 1388 fps | 100% |
| Rottweil R 901 | <<locked>> | 80% | 33,649 psi | 83% | 2221 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 82% | 30,400 psi | 75% | 2221 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,213 psi | 79% | 2149 fps | 96.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,092 psi | 64% | 2024 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 31,589 psi | 78% | 2156 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 80% | 32,010 psi | 79% | 2162 fps | 98.9% |
| Vihtavuori N135 | 22.7 gr | 80% | 27,050 psi | 67% | 2123 fps | 97.9% |
| Vihtavuori N140 | <<locked>> | 80% | 28,224 psi | 70% | 2119 fps | 95.7% |
| Vihtavuori N540 | 25.1 gr | 82% | 28,834 psi | 71% | 2149 fps | 95.3% |
| Winchester 748 | <<locked>> | 82% | 33,301 psi | 82% | 2283 fps | 95.3% |
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 20 powders for 6.5 x 58 R loaded with the .264 | 120gr | Lapua ScenarL. Accurate 4064 delivers the highest muzzle velocity at 2,359 fps; across all powders the maximum-charge window runs from 1,519 fps to 2,359 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 20 of the 20 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 82–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.264" calls for a 1:9.5 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. Accurate 4064, Vihtavuori N135, Vihtavuori N540 rank at the top here: for 6.5 x 58 R with the .264 | 120gr | Lapua ScenarL 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.