Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | Berger VLD Hunting bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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% | 43,366 psi | 84% | 2536 fps | 98.1% |
| Accurate 4350 | <<locked>> | 88% | 45,687 psi | 89% | 2592 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 82% | 46,441 psi | 90% | 2530 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 44,019 psi | 85% | 2595 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 84% | 43,990 psi | 85% | 2612 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,383 psi | 90% | 2615 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,528 psi | 90% | 2664 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 43,961 psi | 85% | 2615 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,814 psi | 79% | 2579 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 46,108 psi | 90% | 2723 fps | 99.7% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,542 psi | 88% | 2644 fps | 96.1% |
| Bofors RP5 | <<locked>> | 98% | 46,528 psi | 90% | 2664 fps | 96.5% |
| Bofors RP7 | <<locked>> | 84% | 44,425 psi | 86% | 2497 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 86% | 44,846 psi | 87% | 2582 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 84% | 45,121 psi | 88% | 2546 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 43,787 psi | 85% | 2533 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 44,048 psi | 86% | 2602 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 71% | 1644 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 45,034 psi | 87% | 2530 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,803 psi | 89% | 2523 fps | 97.6% |
| IMR 4831 | <<locked>> | 90% | 46,282 psi | 90% | 2585 fps | 99.6% |
| Lovex S065 | <<locked>> | 86% | 45,919 psi | 89% | 2530 fps | 98.7% |
| Lovex S070 | <<locked>> | 88% | 46,499 psi | 90% | 2559 fps | 98% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,510 psi | 81% | 2503 fps | 97.7% |
| Norma MRP | <<locked>> | 96% | 45,832 psi | 89% | 2684 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 44,976 psi | 87% | 2579 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 43,714 psi | 85% | 2569 fps | 98.1% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 43,163 psi | 84% | 2582 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,927 psi | 72% | 1683 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 43,947 psi | 85% | 2615 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 45,469 psi | 88% | 2612 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 44,338 psi | 86% | 2628 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 82% | 44,512 psi | 86% | 2520 fps | 100% |
| Rottweil R 905 | <<locked>> | 94% | 45,469 psi | 88% | 2598 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 84% | 44,425 psi | 86% | 2497 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 45,919 psi | 89% | 2530 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 88% | 46,499 psi | 90% | 2559 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 45,411 psi | 88% | 2566 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 46,064 psi | 89% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 45,092 psi | 88% | 2474 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 45,034 psi | 87% | 2595 fps | 96.1% |
| Somchem S355 | <<locked>> | 82% | 44,672 psi | 87% | 2513 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 43,700 psi | 85% | 2589 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 46,093 psi | 90% | 2582 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 84% | 45,643 psi | 89% | 2497 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 43,830 psi | 85% | 2523 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 98% | 45,281 psi | 88% | 2556 fps | 96.6% |
| Vihtavuori N550 | <<locked>> | 88% | 46,238 psi | 90% | 2582 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 96% | 45,803 psi | 89% | 2635 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 46,180 psi | 90% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,846 psi | 87% | 2582 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,018 psi | 82% | 2707 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,788 psi | 89% | 2569 fps | 96% |
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% | 33,185 psi | 64% | 2333 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 34,563 psi | 67% | 2372 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 80% | 43,671 psi | 85% | 2484 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,330 psi | 67% | 2388 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,551 psi | 75% | 2507 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,613 psi | 85% | 2562 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,453 psi | 84% | 2605 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,527 psi | 52% | 2205 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,069 psi | 66% | 2421 fps | 95.8% |
| Alliant Reloder-26 | 42.3 gr | 84% | 30,298 psi | 59% | 2365 fps | 95% |
| Bofors RP15 | <<locked>> | 98% | 42,815 psi | 83% | 2592 fps | 95.3% |
| Bofors RP5 | <<locked>> | 96% | 43,453 psi | 84% | 2605 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 39,044 psi | 76% | 2392 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 80% | 36,695 psi | 71% | 2418 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 82% | 42,482 psi | 83% | 2493 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,676 psi | 62% | 2287 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 82% | 38,189 psi | 74% | 2480 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,006 psi | 52% | 1463 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 39,624 psi | 77% | 2428 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,596 psi | 79% | 2425 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 33,518 psi | 65% | 2336 fps | 97.1% |
| Lovex S065 | <<locked>> | 80% | 38,043 psi | 74% | 2375 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 36,260 psi | 70% | 2356 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 34,156 psi | 66% | 2352 fps | 95.4% |
| Norma MRP | 43.9 gr | 90% | 37,246 psi | 72% | 2507 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 34,606 psi | 67% | 2372 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 80% | 33,750 psi | 66% | 2359 fps | 95% |
| Ramshot Magnum | <<locked>> | 98% | 40,147 psi | 78% | 2523 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,630 psi | 54% | 1503 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,988 psi | 80% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,258 psi | 67% | 2388 fps | 96.9% |
| ReloadSwiss RS 70 | 39.9 gr | 80% | 33,750 psi | 66% | 2395 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 41,481 psi | 81% | 2464 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 92% | 42,322 psi | 82% | 2543 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 39,044 psi | 76% | 2392 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,043 psi | 74% | 2375 fps | 97% |
| Shooters World SW4350 | <<locked>> | 80% | 36,260 psi | 70% | 2356 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,685 psi | 83% | 2520 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,221 psi | 84% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,217 psi | 72% | 2323 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,916 psi | 81% | 2536 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 41,989 psi | 82% | 2467 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 31,140 psi | 60% | 2329 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 40,480 psi | 79% | 2477 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 40,016 psi | 78% | 2402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,969 psi | 70% | 2372 fps | 97.6% |
| Vihtavuori N165 | <<locked>> | 94% | 39,682 psi | 77% | 2454 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 35,679 psi | 69% | 2379 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 82% | 28,935 psi | 56% | 2277 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,375 psi | 69% | 2349 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 36,912 psi | 72% | 2425 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,990 psi | 49% | 2224 fps | 95.1% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,641 psi | 83% | 2513 fps | 95.1% |
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 | Berger VLD Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,723 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 71–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Bofors RP15, Hodgdon TrailBoss 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 140gr | Berger VLD Hunting 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.