Load Specifications
Load data in caliber 6.5 x 58 R with .264 | 123gr | Nosler Custom Competition bullet and 51 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 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.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 36,695 psi | 90% | 2254 fps | 99.8% |
| Accurate 2495 | <<locked>> | 88% | 34,998 psi | 86% | 2287 fps | 99.8% |
| Accurate 2495 | <<locked>> | 88% | 35,969 psi | 89% | 2310 fps | 99.9% |
| Accurate 2520 | <<locked>> | 82% | 34,693 psi | 85% | 2277 fps | 97.3% |
| Accurate 2520 | <<locked>> | 82% | 35,563 psi | 88% | 2300 fps | 97.6% |
| Accurate 4064 | <<locked>> | 90% | 35,157 psi | 87% | 2306 fps | 98.5% |
| Accurate 4064 | <<locked>> | 90% | 36,056 psi | 89% | 2333 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 36,274 psi | 89% | 2274 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 84% | 35,810 psi | 88% | 2313 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 34,432 psi | 85% | 2293 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 35,244 psi | 87% | 2303 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 84% | 36,071 psi | 89% | 2329 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,460 psi | 82% | 1503 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,634 psi | 83% | 1512 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 36,622 psi | 90% | 2349 fps | 99.6% |
| IMR 3031 | <<locked>> | 84% | 34,795 psi | 86% | 2320 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 82% | 36,274 psi | 89% | 2274 fps | 95.9% |
| Lovex D073.6 | <<locked>> | 86% | 35,839 psi | 88% | 2313 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 86% | 36,303 psi | 89% | 2326 fps | 97.8% |
| Lovex S062 | <<locked>> | 88% | 36,114 psi | 89% | 2290 fps | 96% |
| Norma 201 | <<locked>> | 84% | 35,897 psi | 88% | 2267 fps | 95.9% |
| Norma 202 | <<locked>> | 84% | 35,056 psi | 86% | 2267 fps | 98% |
| Norma 202 | <<locked>> | 84% | 35,549 psi | 88% | 2283 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,591 psi | 83% | 1539 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,779 psi | 83% | 1549 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,215 psi | 87% | 2352 fps | 96.3% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 35,795 psi | 88% | 2375 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 82% | 36,448 psi | 90% | 2254 fps | 98% |
| Rottweil R 902 | <<locked>> | 86% | 36,114 psi | 89% | 2267 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 35,839 psi | 88% | 2313 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 36,303 psi | 89% | 2326 fps | 97.8% |
| Shooters World Precision | <<locked>> | 88% | 36,114 psi | 89% | 2290 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 34,940 psi | 86% | 2182 fps | 97.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 35,462 psi | 87% | 2201 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 36,260 psi | 89% | 2228 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 34,809 psi | 86% | 2208 fps | 98.8% |
| Somchem S335 | <<locked>> | 84% | 36,405 psi | 90% | 2231 fps | 98.9% |
| Somchem S335 | <<locked>> | 82% | 35,056 psi | 86% | 2211 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 82% | 34,795 psi | 86% | 2192 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 82% | 35,317 psi | 87% | 2208 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 88% | 35,781 psi | 88% | 2287 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 88% | 36,724 psi | 90% | 2310 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 86% | 35,128 psi | 87% | 2251 fps | 98.3% |
| Vihtavuori N140 | <<locked>> | 86% | 35,621 psi | 88% | 2267 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 94% | 36,289 psi | 89% | 2287 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 92% | 34,809 psi | 86% | 2267 fps | 96.1% |
| Vihtavuori N530 | <<locked>> | 82% | 36,158 psi | 89% | 2270 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 88% | 35,795 psi | 88% | 2280 fps | 98% |
| Vihtavuori N540 | <<locked>> | 88% | 36,535 psi | 90% | 2300 fps | 98.3% |
| Winchester 748 | <<locked>> | 84% | 36,114 psi | 89% | 2320 fps | 96.7% |
| Winchester 748 | <<locked>> | 82% | 34,708 psi | 85% | 2300 fps | 96.4% |
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% | 34,389 psi | 85% | 2208 fps | 99.6% |
| Accurate 2495 | 24 gr | 80% | 26,760 psi | 66% | 2103 fps | 98.3% |
| Accurate 2495 | 24 gr | 80% | 27,615 psi | 68% | 2129 fps | 98.6% |
| Accurate 2520 | <<locked>> | 80% | 32,503 psi | 80% | 2231 fps | 96.6% |
| Accurate 2520 | <<locked>> | 80% | 33,011 psi | 81% | 2247 fps | 96.9% |
| Accurate 4064 | 24.6 gr | 82% | 27,093 psi | 67% | 2123 fps | 95.8% |
| Accurate 4064 | 24 gr | 80% | 26,194 psi | 65% | 2103 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 34,084 psi | 84% | 2228 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 31,691 psi | 78% | 2228 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 32,242 psi | 79% | 2247 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,127 psi | 82% | 2260 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 33,518 psi | 83% | 2274 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,845 psi | 61% | 1342 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,150 psi | 62% | 1355 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 30,052 psi | 74% | 2205 fps | 98.3% |
| IMR 3031 | <<locked>> | 80% | 30,893 psi | 76% | 2231 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 34,084 psi | 84% | 2228 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 80% | 29,109 psi | 72% | 2162 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 80% | 29,646 psi | 73% | 2182 fps | 95.6% |
| Lovex S062 | <<locked>> | 86% | 33,939 psi | 84% | 2244 fps | 95.2% |
| Norma 201 | <<locked>> | 82% | 33,721 psi | 83% | 2221 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 30,850 psi | 76% | 2175 fps | 96.7% |
| Norma 202 | <<locked>> | 80% | 31,328 psi | 77% | 2192 fps | 97% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,092 psi | 62% | 1378 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,005 psi | 62% | 1381 fps | 100% |
| ReloadSwiss RS 60 | 28.9 gr | 90% | 33,156 psi | 82% | 2303 fps | 95.3% |
| ReloadSwiss RS 60 | 28.9 gr | 90% | 33,721 psi | 83% | 2326 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 34,592 psi | 85% | 2218 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 33,982 psi | 84% | 2221 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,109 psi | 72% | 2162 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 29,646 psi | 73% | 2182 fps | 95.6% |
| Shooters World Precision | <<locked>> | 86% | 33,939 psi | 84% | 2244 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,083 psi | 81% | 2146 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,634 psi | 83% | 2165 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,803 psi | 66% | 2021 fps | 96.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,238 psi | 67% | 2037 fps | 96.5% |
| Somchem S335 | <<locked>> | 80% | 32,155 psi | 79% | 2146 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 32,953 psi | 81% | 2169 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 80% | 32,953 psi | 81% | 2156 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 80% | 33,489 psi | 82% | 2172 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 80% | 27,905 psi | 69% | 2119 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 28,500 psi | 70% | 2139 fps | 98.7% |
| Vihtavuori N140 | <<locked>> | 80% | 29,037 psi | 72% | 2116 fps | 96.4% |
| Vihtavuori N140 | <<locked>> | 80% | 29,486 psi | 73% | 2133 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 92% | 34,055 psi | 84% | 2241 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 90% | 32,314 psi | 80% | 2211 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 33,881 psi | 83% | 2221 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 27,876 psi | 69% | 2100 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 28,282 psi | 70% | 2116 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 31,879 psi | 79% | 2228 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 32,300 psi | 80% | 2244 fps | 95.5% |
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 51 powders for 6.5 x 58 R loaded with the .264 | 123gr | Nosler Custom Competition. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,375 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,375 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 51 of the 51 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 123.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, 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, Accurate 2495 rank at the top here: for 6.5 x 58 R with the .264 | 123gr | Nosler Custom Competition 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.