Load Specifications
Load data in caliber 6.5 x 58 R with .263 | 130gr | Rhino Penetrator bullet and 25 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate 4064, Accurate 2495 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% | 35,781 psi | 88% | 2146 fps | 99.8% |
| Accurate 2495 | <<locked>> | 90% | 36,216 psi | 89% | 2221 fps | 99.9% |
| Accurate 2520 | <<locked>> | 84% | 36,390 psi | 90% | 2221 fps | 97.9% |
| Accurate 4064 | <<locked>> | 92% | 36,434 psi | 90% | 2244 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 84% | 35,070 psi | 86% | 2208 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 36,738 psi | 90% | 2247 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,707 psi | 83% | 1437 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 35,607 psi | 88% | 2238 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 86% | 34,795 psi | 86% | 2201 fps | 97.5% |
| Norma 201 | <<locked>> | 86% | 36,448 psi | 90% | 2185 fps | 96.1% |
| Norma 202 | <<locked>> | 86% | 36,535 psi | 90% | 2208 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,402 psi | 82% | 1463 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 34,548 psi | 85% | 2247 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 82% | 35,955 psi | 89% | 2156 fps | 98% |
| Rottweil R 902 | <<locked>> | 88% | 36,738 psi | 90% | 2182 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,795 psi | 86% | 2201 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 36,564 psi | 90% | 2126 fps | 98.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 35,491 psi | 87% | 2126 fps | 98.9% |
| Somchem S335 | <<locked>> | 84% | 35,810 psi | 88% | 2133 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 84% | 36,289 psi | 89% | 2133 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 88% | 35,143 psi | 87% | 2188 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 88% | 36,376 psi | 90% | 2185 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 94% | 35,244 psi | 87% | 2178 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 88% | 34,925 psi | 86% | 2175 fps | 97.9% |
| Winchester 748 | <<locked>> | 84% | 35,505 psi | 87% | 2218 fps | 96.7% |
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% | 33,794 psi | 83% | 2110 fps | 99.6% |
| Accurate 2495 | 22 gr | 80% | 26,237 psi | 65% | 2011 fps | 98.3% |
| Accurate 2520 | <<locked>> | 80% | 31,691 psi | 78% | 2126 fps | 96.5% |
| Accurate 4064 | 22 gr | 80% | 24,889 psi | 61% | 1985 fps | 95% |
| Alliant AR-Comp | <<locked>> | 80% | 30,777 psi | 76% | 2123 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 32,126 psi | 79% | 2152 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,932 psi | 61% | 1280 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 29,530 psi | 73% | 2106 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 80% | 28,224 psi | 70% | 2060 fps | 95.1% |
| Norma 201 | <<locked>> | 84% | 34,447 psi | 85% | 2142 fps | 95.4% |
| Norma 202 | <<locked>> | 80% | 30,052 psi | 74% | 2073 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,787 psi | 61% | 1309 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 32,430 psi | 80% | 2195 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 33,605 psi | 83% | 2110 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 86% | 34,737 psi | 86% | 2142 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 28,224 psi | 70% | 2060 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,169 psi | 79% | 2041 fps | 97.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 26,049 psi | 64% | 1923 fps | 96% |
| Somchem S335 | <<locked>> | 80% | 31,734 psi | 78% | 2051 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 80% | 32,010 psi | 79% | 2051 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 80% | 27,006 psi | 67% | 2014 fps | 98.4% |
| Vihtavuori N140 | <<locked>> | 80% | 28,384 psi | 70% | 2018 fps | 96.3% |
| Vihtavuori N150 | <<locked>> | 92% | 32,967 psi | 81% | 2133 fps | 95.5% |
| Vihtavuori N540 | 22.9 gr | 80% | 27,079 psi | 67% | 2001 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 31,111 psi | 77% | 2123 fps | 95% |
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 25 powders for 6.5 x 58 R loaded with the .263 | 130gr | Rhino Penetrator. Hodgdon BL-C2 delivers the highest muzzle velocity at 2,247 fps; across all powders the maximum-charge window runs from 1,437 fps to 2,247 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 25 of the 25 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 130.0 gr projectile in 0.263" 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. Accurate 4064, Accurate 2495, Vihtavuori N540 rank at the top here: for 6.5 x 58 R with the .263 | 130gr | Rhino Penetrator 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.