Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | Woodleigh PP SN bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Winchester StaBALL HD.
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>> | 96% | 44,947 psi | 87% | 2569 fps | 98.5% |
| Accurate 4350 | <<locked>> | 86% | 44,005 psi | 85% | 2569 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 45,440 psi | 88% | 2605 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 45,324 psi | 88% | 2602 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 45,440 psi | 88% | 2628 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 84% | 45,469 psi | 88% | 2644 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 44,831 psi | 87% | 2595 fps | 96.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 44,846 psi | 87% | 2641 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 45,527 psi | 88% | 2648 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,293 psi | 82% | 2618 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 44,657 psi | 87% | 2703 fps | 99.6% |
| Bofors RP15 | <<locked>> | 98% | 44,222 psi | 86% | 2628 fps | 95.9% |
| Bofors RP5 | <<locked>> | 96% | 44,846 psi | 87% | 2641 fps | 96.3% |
| Bofors RP7 | <<locked>> | 84% | 45,498 psi | 88% | 2526 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 46,224 psi | 90% | 2615 fps | 98% |
| Hodgdon H4350 | <<locked>> | 84% | 46,528 psi | 90% | 2579 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 45,295 psi | 88% | 2566 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 45,455 psi | 88% | 2635 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,245 psi | 70% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 46,296 psi | 90% | 2562 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 44,164 psi | 86% | 2503 fps | 97.4% |
| IMR 4831 | <<locked>> | 88% | 44,889 psi | 87% | 2569 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 44,324 psi | 86% | 2507 fps | 98.6% |
| Lovex S070 | <<locked>> | 86% | 45,136 psi | 88% | 2543 fps | 97.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,076 psi | 84% | 2539 fps | 98.2% |
| Norma 204 | <<locked>> | 88% | 46,166 psi | 90% | 2598 fps | 96.2% |
| Norma MRP | <<locked>> | 94% | 44,469 psi | 86% | 2667 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 46,412 psi | 90% | 2612 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 88% | 45,339 psi | 88% | 2608 fps | 98.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 44,599 psi | 87% | 2618 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,854 psi | 72% | 1693 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 45,121 psi | 88% | 2638 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 43,787 psi | 85% | 2589 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 45,759 psi | 89% | 2661 fps | 99.4% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,046 psi | 80% | 2628 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 45,788 psi | 89% | 2546 fps | 100% |
| Rottweil R 905 | <<locked>> | 92% | 43,918 psi | 85% | 2579 fps | 96% |
| Rottweil R 907 | <<locked>> | 84% | 45,498 psi | 88% | 2526 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 44,324 psi | 86% | 2507 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 86% | 45,136 psi | 88% | 2543 fps | 97.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 46,398 psi | 90% | 2507 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 46,325 psi | 90% | 2625 fps | 96.6% |
| Somchem S355 | <<locked>> | 82% | 45,905 psi | 89% | 2543 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 45,237 psi | 88% | 2618 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 44,541 psi | 87% | 2562 fps | 97% |
| Vihtavuori N150 | <<locked>> | 82% | 44,092 psi | 86% | 2480 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 45,237 psi | 88% | 2556 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 96% | 43,627 psi | 85% | 2536 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 86% | 44,512 psi | 86% | 2559 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 94% | 44,715 psi | 87% | 2618 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 44,599 psi | 87% | 2533 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 46,572 psi | 90% | 2621 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,569 psi | 85% | 2743 fps | 100% |
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>> | 88% | 34,461 psi | 67% | 2365 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 35,795 psi | 70% | 2405 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 90% | 42,482 psi | 83% | 2546 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 42,743 psi | 83% | 2552 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,172 psi | 68% | 2415 fps | 98% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,639 psi | 77% | 2533 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,250 psi | 82% | 2546 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,235 psi | 82% | 2589 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,773 psi | 50% | 2185 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,011 psi | 64% | 2402 fps | 95.5% |
| Alliant Reloder-26 | 43.5 gr | 84% | 31,314 psi | 61% | 2402 fps | 95.8% |
| Bofors RP15 | <<locked>> | 96% | 41,365 psi | 80% | 2569 fps | 95% |
| Bofors RP5 | <<locked>> | 94% | 42,235 psi | 82% | 2589 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 40,147 psi | 78% | 2421 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 37,768 psi | 73% | 2448 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 80% | 41,017 psi | 80% | 2474 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,793 psi | 64% | 2320 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 82% | 39,537 psi | 77% | 2516 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,180 psi | 53% | 1476 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 38,290 psi | 74% | 2405 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,655 psi | 81% | 2454 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 34,664 psi | 67% | 2365 fps | 97.6% |
| Lovex S065 | <<locked>> | 80% | 39,160 psi | 76% | 2408 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 37,304 psi | 72% | 2388 fps | 95.8% |
| Lovex S071 | <<locked>> | 92% | 33,257 psi | 65% | 2336 fps | 95.2% |
| Norma 204 | <<locked>> | 86% | 43,149 psi | 84% | 2543 fps | 95.3% |
| Norma MRP | 45.2 gr | 90% | 38,595 psi | 75% | 2543 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 35,781 psi | 69% | 2402 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 80% | 34,722 psi | 67% | 2388 fps | 95.6% |
| Ramshot Magnum | <<locked>> | 98% | 41,568 psi | 81% | 2559 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 53% | 1512 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,148 psi | 82% | 2585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,621 psi | 69% | 2425 fps | 97.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,867 psi | 68% | 2431 fps | 96.8% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,421 psi | 75% | 2566 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 42,801 psi | 83% | 2497 fps | 100% |
| Rottweil R 905 | <<locked>> | 90% | 41,031 psi | 80% | 2523 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 40,147 psi | 78% | 2421 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,160 psi | 76% | 2408 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 80% | 37,304 psi | 72% | 2388 fps | 95.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,247 psi | 74% | 2356 fps | 95.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,640 psi | 79% | 2520 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 43,236 psi | 84% | 2497 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 32,256 psi | 63% | 2362 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 39,262 psi | 76% | 2461 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 41,191 psi | 80% | 2428 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,115 psi | 72% | 2402 fps | 98.1% |
| Vihtavuori N165 | <<locked>> | 94% | 41,046 psi | 80% | 2487 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 36,738 psi | 71% | 2405 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,181 psi | 55% | 2257 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,477 psi | 71% | 2379 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 38,043 psi | 74% | 2454 fps | 95.9% |
| Winchester StaBALL HD | 41.8 gr | 84% | 25,846 psi | 50% | 2267 fps | 96.2% |
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 53 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 140gr | Woodleigh PP SN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,743 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,743 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 53 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon TrailBoss, Lovex S071 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. Norma MRP, Alliant Reloder-26, Winchester StaBALL HD rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 140gr | 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.