Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 160gr | Woodleigh PP SN bullet and 62 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% | 45,948 psi | 89% | 2421 fps | 99.5% |
| Accurate 4350 | <<locked>> | 84% | 44,846 psi | 87% | 2408 fps | 99.9% |
| Accurate High Country | <<locked>> | 90% | 43,714 psi | 85% | 2484 fps | 96.3% |
| ADI AR 2209 | <<locked>> | 90% | 45,643 psi | 89% | 2444 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 94% | 46,586 psi | 90% | 2490 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 36,405 psi | 71% | 2349 fps | 96.8% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 45,730 psi | 89% | 2444 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 45,716 psi | 89% | 2457 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 46,122 psi | 90% | 2474 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 45,194 psi | 88% | 2438 fps | 97.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 45,818 psi | 89% | 2493 fps | 97.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 46,528 psi | 90% | 2487 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,759 psi | 89% | 2520 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 45,571 psi | 89% | 2549 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 44,860 psi | 87% | 2474 fps | 97.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 41,742 psi | 81% | 2454 fps | 96.1% |
| Bofors RP5 | <<locked>> | 94% | 45,818 psi | 89% | 2493 fps | 97.9% |
| Bofors RP7 | <<locked>> | 82% | 45,498 psi | 88% | 2362 fps | 98.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,382 psi | 88% | 2464 fps | 97% |
| Hodgdon H414 | <<locked>> | 82% | 43,613 psi | 85% | 2398 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 82% | 46,514 psi | 90% | 2411 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 92% | 46,514 psi | 90% | 2441 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 46,122 psi | 90% | 2402 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,773 psi | 87% | 2559 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 84% | 45,803 psi | 89% | 2477 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,564 psi | 71% | 1535 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 46,514 psi | 90% | 2398 fps | 98.6% |
| IMR 4831 | <<locked>> | 86% | 45,411 psi | 88% | 2405 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 45,542 psi | 88% | 2388 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 94% | 44,454 psi | 86% | 2464 fps | 96% |
| Lovex S065 | <<locked>> | 82% | 44,454 psi | 86% | 2343 fps | 99.4% |
| Lovex S070 | <<locked>> | 84% | 45,266 psi | 88% | 2379 fps | 98.9% |
| Lovex S071 | <<locked>> | 98% | 44,005 psi | 85% | 2388 fps | 99.3% |
| Norma 204 | <<locked>> | 86% | 46,412 psi | 90% | 2438 fps | 97.6% |
| Norma MRP | <<locked>> | 92% | 44,947 psi | 87% | 2507 fps | 98.8% |
| Norma URP | <<locked>> | 84% | 43,990 psi | 85% | 2395 fps | 99.9% |
| Ramshot Grand | <<locked>> | 94% | 44,121 psi | 86% | 2470 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 86% | 45,759 psi | 89% | 2444 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 98% | 45,368 psi | 88% | 2477 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,289 psi | 72% | 1575 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 44,382 psi | 86% | 2428 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 46,021 psi | 89% | 2497 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,672 psi | 87% | 2556 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 88% | 44,309 psi | 86% | 2372 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 90% | 44,411 psi | 86% | 2425 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 82% | 45,498 psi | 88% | 2362 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 44,454 psi | 86% | 2343 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 84% | 45,266 psi | 88% | 2379 fps | 98.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 46,282 psi | 90% | 2343 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 44,005 psi | 85% | 2421 fps | 97.5% |
| Somchem S365 | <<locked>> | 88% | 46,267 psi | 90% | 2451 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 45,136 psi | 88% | 2408 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 45,832 psi | 89% | 2395 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 94% | 44,396 psi | 86% | 2388 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 84% | 44,991 psi | 87% | 2398 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 92% | 45,658 psi | 89% | 2457 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 45,382 psi | 88% | 2497 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 98% | 44,440 psi | 86% | 2474 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 44,628 psi | 87% | 2362 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 43,918 psi | 85% | 2405 fps | 98.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 44,454 psi | 86% | 2585 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,382 psi | 86% | 2395 fps | 97.3% |
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% | 30,676 psi | 60% | 2129 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 39,030 psi | 76% | 2310 fps | 99.5% |
| Accurate High Country | <<locked>> | 88% | 40,683 psi | 79% | 2428 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 84% | 37,565 psi | 73% | 2290 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 92% | 43,439 psi | 84% | 2431 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 98% | 34,301 psi | 67% | 2297 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 37,927 psi | 74% | 2297 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,797 psi | 73% | 2313 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,917 psi | 83% | 2421 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,565 psi | 73% | 2293 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 37,681 psi | 73% | 2339 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,891 psi | 54% | 2110 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,617 psi | 58% | 2169 fps | 95.8% |
| Alliant Reloder-26 | 39.9 gr | 80% | 29,704 psi | 58% | 2215 fps | 96.8% |
| Bofors RP15 | 41.3 gr | 90% | 37,188 psi | 72% | 2326 fps | 95.2% |
| Bofors RP30 | <<locked>> | 98% | 39,218 psi | 76% | 2402 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 37,681 psi | 73% | 2339 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 42,830 psi | 83% | 2316 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 39,943 psi | 78% | 2362 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 40,988 psi | 80% | 2352 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 43,772 psi | 85% | 2365 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 43,700 psi | 85% | 2392 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,491 psi | 69% | 2221 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 94% | 36,985 psi | 72% | 2392 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,624 psi | 77% | 2362 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,412 psi | 53% | 1371 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,464 psi | 75% | 2254 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 37,565 psi | 73% | 2267 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 42,888 psi | 83% | 2339 fps | 95% |
| IMR 7828 SSC | <<locked>> | 92% | 41,756 psi | 81% | 2415 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 41,800 psi | 81% | 2300 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 40,045 psi | 78% | 2283 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 30,037 psi | 58% | 2113 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 37,840 psi | 73% | 2280 fps | 95.2% |
| Norma MRP | <<locked>> | 84% | 34,461 psi | 67% | 2297 fps | 96% |
| Norma URP | <<locked>> | 80% | 38,740 psi | 75% | 2300 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 41,379 psi | 80% | 2418 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 37,463 psi | 73% | 2293 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 92% | 36,506 psi | 71% | 2310 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 54% | 1404 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,812 psi | 75% | 2326 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,376 psi | 73% | 2336 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 33,895 psi | 66% | 2316 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 86% | 41,640 psi | 81% | 2326 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 84% | 36,622 psi | 71% | 2277 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 42,830 psi | 83% | 2316 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,800 psi | 81% | 2300 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 40,045 psi | 78% | 2283 fps | 97.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,930 psi | 79% | 2251 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,274 psi | 70% | 2270 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 35,230 psi | 68% | 2264 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 34,737 psi | 67% | 2211 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 80% | 40,118 psi | 78% | 2297 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 88% | 36,477 psi | 71% | 2244 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 39,508 psi | 77% | 2300 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 30,937 psi | 60% | 2175 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 90% | 42,656 psi | 83% | 2448 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 41,408 psi | 80% | 2421 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,001 psi | 76% | 2270 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,988 psi | 80% | 2352 fps | 98% |
| Winchester StaBALL HD | 38.3 gr | 80% | 24,584 psi | 48% | 2096 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,740 psi | 75% | 2293 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 62 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 160gr | Woodleigh PP SN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,585 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,585 fps. ADI AR 2225 gives the best case fill at 100 %, and 62 of the 62 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 160.0 gr projectile in 0.264" calls for a 1:9.5 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 | 160gr | Woodleigh PP SN 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.