Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 156gr | Norma VULKAN bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Alliant Reloder-26 and Bofors RP15.
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 3100 | <<locked>> | 94% | 46,180 psi | 90% | 2461 fps | 99.4% |
| Accurate 4350 | <<locked>> | 84% | 44,817 psi | 87% | 2448 fps | 99.9% |
| Accurate High Country | <<locked>> | 90% | 43,700 psi | 85% | 2520 fps | 96.1% |
| ADI AR 2209 | <<locked>> | 90% | 46,035 psi | 89% | 2490 fps | 97.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,666 psi | 71% | 2385 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 46,122 psi | 90% | 2487 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 45,977 psi | 89% | 2500 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 46,340 psi | 90% | 2516 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 45,571 psi | 89% | 2480 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 46,035 psi | 89% | 2533 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 46,514 psi | 90% | 2523 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,137 psi | 90% | 2566 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 45,672 psi | 89% | 2585 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 45,092 psi | 88% | 2516 fps | 97.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 41,843 psi | 81% | 2490 fps | 95.9% |
| Bofors RP5 | <<locked>> | 94% | 46,035 psi | 89% | 2533 fps | 97.8% |
| Bofors RP7 | <<locked>> | 82% | 45,890 psi | 89% | 2405 fps | 98.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,658 psi | 89% | 2507 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 82% | 43,874 psi | 85% | 2441 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 46,325 psi | 90% | 2441 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,136 psi | 88% | 2602 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 84% | 46,093 psi | 90% | 2516 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,593 psi | 71% | 1568 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 43,714 psi | 85% | 2388 fps | 98% |
| IMR 4831 | <<locked>> | 86% | 45,643 psi | 89% | 2448 fps | 100% |
| IMR 7828 SSC | <<locked>> | 94% | 44,686 psi | 87% | 2503 fps | 95.9% |
| Lovex S065 | <<locked>> | 82% | 44,498 psi | 86% | 2382 fps | 99.4% |
| Lovex S070 | <<locked>> | 84% | 45,527 psi | 88% | 2421 fps | 98.9% |
| Lovex S071 | <<locked>> | 98% | 44,280 psi | 86% | 2431 fps | 99.2% |
| Norma 204 | <<locked>> | 86% | 46,485 psi | 90% | 2474 fps | 97.5% |
| Norma MRP | <<locked>> | 92% | 45,121 psi | 88% | 2546 fps | 98.8% |
| Norma URP | <<locked>> | 84% | 44,295 psi | 86% | 2438 fps | 99.9% |
| Ramshot Grand | <<locked>> | 94% | 44,237 psi | 86% | 2510 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 86% | 45,905 psi | 89% | 2484 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 98% | 45,629 psi | 89% | 2516 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,289 psi | 72% | 1604 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 44,512 psi | 86% | 2464 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 46,079 psi | 89% | 2533 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,107 psi | 88% | 2598 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 88% | 44,469 psi | 86% | 2411 fps | 96% |
| Rottweil R 905 | <<locked>> | 90% | 44,846 psi | 87% | 2467 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 82% | 45,890 psi | 89% | 2405 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 44,498 psi | 86% | 2382 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 84% | 45,527 psi | 88% | 2421 fps | 98.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 46,543 psi | 90% | 2385 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 44,440 psi | 86% | 2464 fps | 97.4% |
| Somchem S365 | <<locked>> | 88% | 46,427 psi | 90% | 2490 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 45,194 psi | 88% | 2444 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 84% | 45,788 psi | 89% | 2431 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 94% | 44,643 psi | 87% | 2428 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 84% | 45,150 psi | 88% | 2438 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 92% | 46,035 psi | 89% | 2500 fps | 100% |
| Vihtavuori N565 | <<locked>> | 98% | 44,846 psi | 87% | 2516 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 44,976 psi | 87% | 2405 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 43,874 psi | 85% | 2441 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 44,831 psi | 87% | 2631 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,643 psi | 87% | 2434 fps | 97.2% |
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 3100 | <<locked>> | 82% | 30,951 psi | 60% | 2165 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 39,131 psi | 76% | 2346 fps | 99.4% |
| Accurate High Country | <<locked>> | 88% | 40,988 psi | 80% | 2470 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 84% | 37,768 psi | 73% | 2329 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 98% | 34,360 psi | 67% | 2329 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 37,913 psi | 74% | 2329 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,927 psi | 74% | 2352 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,207 psi | 84% | 2464 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,536 psi | 73% | 2326 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,797 psi | 73% | 2375 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,978 psi | 54% | 2142 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,762 psi | 58% | 2205 fps | 95.6% |
| Alliant Reloder-26 | 40.9 gr | 80% | 29,849 psi | 58% | 2247 fps | 96.7% |
| Bofors RP15 | 42.3 gr | 90% | 37,304 psi | 72% | 2362 fps | 95.1% |
| Bofors RP30 | <<locked>> | 98% | 39,334 psi | 76% | 2441 fps | 95.1% |
| Bofors RP5 | <<locked>> | 88% | 37,797 psi | 73% | 2375 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 42,917 psi | 83% | 2352 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 40,059 psi | 78% | 2398 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 41,002 psi | 80% | 2388 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,650 psi | 69% | 2257 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 37,173 psi | 72% | 2428 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 39,972 psi | 78% | 2405 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 53% | 1398 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,522 psi | 75% | 2290 fps | 96.7% |
| IMR 4831 | <<locked>> | 80% | 37,666 psi | 73% | 2303 fps | 99.2% |
| IMR 7828 SSC | <<locked>> | 92% | 41,756 psi | 81% | 2451 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 41,945 psi | 81% | 2336 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 40,132 psi | 78% | 2323 fps | 97.8% |
| Lovex S071 | <<locked>> | 86% | 30,284 psi | 59% | 2149 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 38,087 psi | 74% | 2320 fps | 95.1% |
| Norma MRP | <<locked>> | 84% | 34,563 psi | 67% | 2333 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 38,841 psi | 75% | 2339 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 41,568 psi | 81% | 2457 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 37,710 psi | 73% | 2333 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 92% | 36,869 psi | 72% | 2349 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,065 psi | 55% | 1434 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,769 psi | 75% | 2362 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,565 psi | 73% | 2372 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,200 psi | 66% | 2356 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 86% | 41,858 psi | 81% | 2362 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 84% | 36,608 psi | 71% | 2310 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,917 psi | 83% | 2352 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,945 psi | 81% | 2336 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 40,132 psi | 78% | 2323 fps | 97.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,959 psi | 80% | 2287 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 38,899 psi | 76% | 2359 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 35,317 psi | 69% | 2303 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,983 psi | 68% | 2251 fps | 95.4% |
| Vihtavuori N160 | <<locked>> | 80% | 40,190 psi | 78% | 2336 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 36,608 psi | 71% | 2280 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 39,798 psi | 77% | 2343 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 31,067 psi | 60% | 2211 fps | 98.1% |
| Vihtavuori N565 | <<locked>> | 96% | 41,843 psi | 81% | 2464 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,160 psi | 76% | 2306 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,292 psi | 80% | 2395 fps | 98% |
| Winchester StaBALL HD | 39.3 gr | 80% | 24,743 psi | 48% | 2133 fps | 97.5% |
| Winchester Supreme 780 | <<locked>> | 88% | 39,088 psi | 76% | 2333 fps | 95.7% |
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 57 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 156gr | Norma VULKAN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,631 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,631 fps. ADI AR 2225 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP30 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. Winchester StaBALL HD, Alliant Reloder-26, Bofors RP15 rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 156gr | Norma VULKAN 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.