Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 115gr | Hammer Power bullet and 23 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 3031, Accurate 4064 and Accurate 2495.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 34,737 psi | 86% | 2300 fps | 99.2% |
| Accurate 2460 | <<locked>> | 82% | 35,331 psi | 87% | 2333 fps | 97% |
| Accurate 2495 | <<locked>> | 92% | 34,534 psi | 85% | 2365 fps | 99.5% |
| Accurate 2520 | <<locked>> | 86% | 35,201 psi | 87% | 2369 fps | 96.6% |
| Accurate 4064 | <<locked>> | 94% | 34,708 psi | 85% | 2385 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 86% | 34,345 psi | 85% | 2369 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 36,535 psi | 90% | 2369 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,808 psi | 81% | 1545 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 34,722 psi | 86% | 2392 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 90% | 35,998 psi | 89% | 2395 fps | 96.8% |
| Norma 202 | <<locked>> | 88% | 35,520 psi | 87% | 2356 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,779 psi | 81% | 1581 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 36,289 psi | 89% | 2346 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 86% | 36,651 psi | 90% | 2343 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 90% | 35,998 psi | 89% | 2395 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 35,839 psi | 88% | 2277 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 34,722 psi | 86% | 2277 fps | 98% |
| Somchem S335 | <<locked>> | 86% | 35,099 psi | 86% | 2283 fps | 97.9% |
| Vihtavuori N130 | <<locked>> | 82% | 36,129 psi | 89% | 2283 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 86% | 35,563 psi | 88% | 2287 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 92% | 36,100 psi | 89% | 2379 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 90% | 35,737 psi | 88% | 2343 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 92% | 36,695 psi | 90% | 2375 fps | 97.4% |
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% | 30,661 psi | 76% | 2211 fps | 98.3% |
| Accurate 2460 | <<locked>> | 80% | 32,706 psi | 81% | 2274 fps | 96.1% |
| Accurate 2495 | 23.2 gr | 80% | 22,785 psi | 56% | 2077 fps | 95.7% |
| Accurate 2520 | <<locked>> | 84% | 32,895 psi | 81% | 2320 fps | 95.8% |
| Accurate 4064 | 25.5 gr | 88% | 28,297 psi | 70% | 2238 fps | 95.4% |
| Alliant AR-Comp | <<locked>> | 80% | 28,268 psi | 70% | 2231 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 34,142 psi | 84% | 2320 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,149 psi | 59% | 1378 fps | 100% |
| IMR 3031 | 22.9 gr | 80% | 26,789 psi | 66% | 2195 fps | 96% |
| Lovex D073.6 | <<locked>> | 86% | 31,372 psi | 77% | 2297 fps | 95.2% |
| Norma 202 | <<locked>> | 82% | 29,051 psi | 72% | 2208 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,250 psi | 60% | 1414 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,968 psi | 84% | 2297 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 30,806 psi | 76% | 2211 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 86% | 31,372 psi | 77% | 2297 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,907 psi | 74% | 2146 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,238 psi | 67% | 2103 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 28,892 psi | 71% | 2146 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 34,171 psi | 84% | 2244 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 80% | 29,704 psi | 73% | 2162 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 80% | 24,685 psi | 61% | 2110 fps | 96.3% |
| Vihtavuori N140 | <<locked>> | 84% | 29,660 psi | 73% | 2205 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 86% | 30,226 psi | 74% | 2234 fps | 95.2% |
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 23 powders for 6.5 x 58 R loaded with the .264 | 115gr | Hammer Power. Lovex D073.6 delivers the highest muzzle velocity at 2,395 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,395 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 23 of the 23 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (280 MPa), the top charges use 81–90 %, leaving at least 10 % headroom. The 115.0 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. IMR 3031, Accurate 4064, Accurate 2495 rank at the top here: for 6.5 x 58 R with the .264 | 115gr | Hammer Power 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.