Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | Berger VLD Hy Tgt 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>> | 98% | 46,137 psi | 90% | 2582 fps | 98.6% |
| Accurate 4350 | <<locked>> | 88% | 45,426 psi | 88% | 2585 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 82% | 46,528 psi | 90% | 2530 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 43,801 psi | 85% | 2589 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 84% | 43,801 psi | 85% | 2608 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,209 psi | 90% | 2612 fps | 96.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,050 psi | 89% | 2654 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,340 psi | 90% | 2654 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,698 psi | 79% | 2575 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 45,629 psi | 89% | 2717 fps | 99.6% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,078 psi | 88% | 2635 fps | 95.9% |
| Bofors RP5 | <<locked>> | 98% | 46,050 psi | 89% | 2654 fps | 96.4% |
| Bofors RP7 | <<locked>> | 84% | 44,222 psi | 86% | 2490 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 86% | 44,643 psi | 87% | 2579 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 84% | 44,904 psi | 87% | 2539 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 46,485 psi | 90% | 2575 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 43,859 psi | 85% | 2595 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,245 psi | 70% | 1640 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 44,527 psi | 86% | 2520 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,556 psi | 88% | 2516 fps | 97.5% |
| IMR 4831 | <<locked>> | 90% | 46,035 psi | 89% | 2582 fps | 99.6% |
| Lovex S065 | <<locked>> | 86% | 45,730 psi | 89% | 2523 fps | 98.7% |
| Lovex S070 | <<locked>> | 88% | 46,325 psi | 90% | 2552 fps | 98% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,031 psi | 80% | 2493 fps | 97.5% |
| Norma MRP | <<locked>> | 96% | 45,353 psi | 88% | 2671 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 44,744 psi | 87% | 2572 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 88% | 43,569 psi | 85% | 2566 fps | 98% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,772 psi | 83% | 2572 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,854 psi | 72% | 1680 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 46,572 psi | 90% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 44,933 psi | 87% | 2602 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 43,845 psi | 85% | 2615 fps | 99% |
| Rottweil R 903 | <<locked>> | 82% | 44,266 psi | 86% | 2513 fps | 100% |
| Rottweil R 905 | <<locked>> | 94% | 44,918 psi | 87% | 2589 fps | 96.1% |
| Rottweil R 907 | <<locked>> | 84% | 44,222 psi | 86% | 2490 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 45,730 psi | 89% | 2523 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 88% | 46,325 psi | 90% | 2552 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 45,208 psi | 88% | 2562 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 45,818 psi | 89% | 2425 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,904 psi | 87% | 2470 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,498 psi | 86% | 2585 fps | 95.9% |
| Somchem S355 | <<locked>> | 82% | 44,425 psi | 86% | 2507 fps | 99.9% |
| Somchem S365 | <<locked>> | 92% | 46,441 psi | 90% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 45,614 psi | 89% | 2572 fps | 97.1% |
| Vihtavuori N150 | <<locked>> | 84% | 45,426 psi | 88% | 2493 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 43,584 psi | 85% | 2520 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 98% | 44,817 psi | 87% | 2546 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 88% | 46,021 psi | 89% | 2579 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 96% | 45,585 psi | 89% | 2628 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 46,021 psi | 89% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,643 psi | 87% | 2579 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,901 psi | 81% | 2700 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,368 psi | 88% | 2559 fps | 95.8% |
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>> | 90% | 35,230 psi | 68% | 2375 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 34,330 psi | 67% | 2365 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 80% | 43,468 psi | 84% | 2477 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,127 psi | 66% | 2382 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,319 psi | 74% | 2500 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,178 psi | 84% | 2552 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,265 psi | 84% | 2602 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,382 psi | 51% | 2198 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,721 psi | 65% | 2411 fps | 95.6% |
| Alliant Reloder-26 | 43 gr | 86% | 32,068 psi | 62% | 2415 fps | 95.9% |
| Bofors RP15 | <<locked>> | 98% | 42,380 psi | 82% | 2582 fps | 95.1% |
| Bofors RP5 | <<locked>> | 96% | 43,265 psi | 84% | 2602 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 39,102 psi | 76% | 2392 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 36,477 psi | 71% | 2411 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 82% | 42,221 psi | 82% | 2490 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,473 psi | 61% | 2280 fps | 98.1% |
| Hodgdon Superformance | <<locked>> | 82% | 38,014 psi | 74% | 2474 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 52% | 1460 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 39,436 psi | 77% | 2421 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,408 psi | 78% | 2418 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 33,301 psi | 65% | 2329 fps | 97% |
| Lovex S065 | <<locked>> | 80% | 37,826 psi | 73% | 2372 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 36,042 psi | 70% | 2349 fps | 95.1% |
| Lovex S071 | <<locked>> | 94% | 33,982 psi | 66% | 2346 fps | 95.3% |
| Norma MRP | 43.7 gr | 90% | 37,086 psi | 72% | 2500 fps | 95% |
| Norma URP | <<locked>> | 80% | 34,432 psi | 67% | 2365 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 82% | 35,694 psi | 69% | 2405 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 98% | 40,059 psi | 78% | 2516 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,514 psi | 53% | 1499 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,785 psi | 79% | 2556 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,055 psi | 66% | 2382 fps | 96.8% |
| ReloadSwiss RS 70 | 39.7 gr | 80% | 33,591 psi | 65% | 2388 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 41,249 psi | 80% | 2457 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 92% | 42,119 psi | 82% | 2536 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 39,102 psi | 76% | 2392 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,826 psi | 73% | 2372 fps | 96.9% |
| Shooters World SW4350 | <<locked>> | 80% | 36,042 psi | 70% | 2349 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,467 psi | 82% | 2513 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,018 psi | 84% | 2382 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,057 psi | 72% | 2320 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,713 psi | 81% | 2533 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 41,771 psi | 81% | 2461 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 30,937 psi | 60% | 2323 fps | 99.1% |
| Somchem S385 | <<locked>> | 90% | 40,292 psi | 78% | 2474 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 39,784 psi | 77% | 2395 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 35,752 psi | 69% | 2365 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 96% | 42,076 psi | 82% | 2497 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 35,491 psi | 69% | 2372 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 28,718 psi | 56% | 2270 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,230 psi | 68% | 2346 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 36,709 psi | 71% | 2418 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,889 psi | 48% | 2221 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,525 psi | 83% | 2510 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 53 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 140gr | Berger VLD Hy Tgt. Alliant Reloder-26 delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,717 fps. Alliant Reloder-23 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 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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 Hy Tgt 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.