Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 142gr | Nosler AccuBond Long Range 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, ReloadSwiss RS 70 and Norma MRP.
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% | 46,383 psi | 90% | 2566 fps | 98.7% |
| Accurate 4350 | <<locked>> | 88% | 45,542 psi | 88% | 2566 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 82% | 46,528 psi | 90% | 2510 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 43,874 psi | 85% | 2572 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 84% | 43,903 psi | 85% | 2589 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,050 psi | 89% | 2589 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,340 psi | 90% | 2638 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 43,743 psi | 85% | 2589 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,669 psi | 79% | 2556 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 45,934 psi | 89% | 2700 fps | 99.7% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,353 psi | 88% | 2621 fps | 96.1% |
| Bofors RP5 | <<locked>> | 98% | 46,340 psi | 90% | 2638 fps | 96.5% |
| Bofors RP7 | <<locked>> | 84% | 44,222 psi | 86% | 2470 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 86% | 44,730 psi | 87% | 2559 fps | 97.6% |
| Hodgdon H4350 | <<locked>> | 84% | 44,962 psi | 87% | 2520 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 43,642 psi | 85% | 2510 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 43,772 psi | 85% | 2572 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,129 psi | 70% | 1624 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 44,628 psi | 87% | 2503 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,614 psi | 89% | 2500 fps | 97.6% |
| IMR 4831 | <<locked>> | 90% | 46,209 psi | 90% | 2562 fps | 99.7% |
| Lovex S065 | <<locked>> | 86% | 45,759 psi | 89% | 2503 fps | 98.8% |
| Lovex S070 | <<locked>> | 88% | 46,398 psi | 90% | 2536 fps | 98.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,234 psi | 80% | 2477 fps | 97.7% |
| Norma MRP | <<locked>> | 96% | 45,614 psi | 89% | 2657 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 44,860 psi | 87% | 2556 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 90% | 46,456 psi | 90% | 2598 fps | 98.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 42,801 psi | 83% | 2552 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,738 psi | 71% | 1660 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 43,497 psi | 84% | 2582 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 45,078 psi | 88% | 2585 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 44,034 psi | 86% | 2598 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 82% | 44,266 psi | 86% | 2493 fps | 100% |
| Rottweil R 905 | <<locked>> | 94% | 45,121 psi | 88% | 2572 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 84% | 44,222 psi | 86% | 2470 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 45,759 psi | 89% | 2503 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 88% | 46,398 psi | 90% | 2536 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 45,252 psi | 88% | 2539 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 45,788 psi | 89% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 45,005 psi | 87% | 2451 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,686 psi | 87% | 2569 fps | 96.1% |
| Somchem S355 | <<locked>> | 82% | 44,730 psi | 87% | 2493 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 46,586 psi | 90% | 2612 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 45,803 psi | 89% | 2556 fps | 97.2% |
| Vihtavuori N150 | <<locked>> | 84% | 45,498 psi | 88% | 2474 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 43,656 psi | 85% | 2500 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 98% | 45,078 psi | 88% | 2533 fps | 96.6% |
| Vihtavuori N550 | <<locked>> | 88% | 45,847 psi | 89% | 2556 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 96% | 45,788 psi | 89% | 2612 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 45,905 psi | 89% | 2523 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,730 psi | 87% | 2559 fps | 97.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,901 psi | 81% | 2684 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,266 psi | 88% | 2539 fps | 95.9% |
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% | 33,083 psi | 64% | 2310 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 34,606 psi | 67% | 2356 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 80% | 43,700 psi | 85% | 2461 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,113 psi | 66% | 2362 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,392 psi | 75% | 2484 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,323 psi | 84% | 2536 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,207 psi | 84% | 2582 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,527 psi | 52% | 2188 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 94% | 33,866 psi | 66% | 2398 fps | 95.8% |
| Alliant Reloder-26 | 42.6 gr | 86% | 32,169 psi | 62% | 2398 fps | 96.1% |
| Bofors RP15 | <<locked>> | 98% | 42,612 psi | 83% | 2569 fps | 95.3% |
| Bofors RP5 | <<locked>> | 96% | 43,207 psi | 84% | 2582 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 39,073 psi | 76% | 2372 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 36,477 psi | 71% | 2395 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 82% | 42,293 psi | 82% | 2470 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,691 psi | 62% | 2270 fps | 98.2% |
| Hodgdon Superformance | <<locked>> | 82% | 38,145 psi | 74% | 2457 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,977 psi | 52% | 1447 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 39,465 psi | 77% | 2402 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,364 psi | 78% | 2398 fps | 96.3% |
| IMR 4831 | <<locked>> | 80% | 33,286 psi | 65% | 2310 fps | 97.1% |
| Lovex S065 | <<locked>> | 80% | 38,072 psi | 74% | 2359 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 36,260 psi | 70% | 2336 fps | 95.3% |
| Lovex S071 | <<locked>> | 94% | 34,069 psi | 66% | 2333 fps | 95.5% |
| Norma MRP | 43.3 gr | 90% | 37,231 psi | 72% | 2487 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 34,650 psi | 67% | 2352 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 80% | 33,591 psi | 65% | 2336 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 40,045 psi | 78% | 2497 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 54% | 1486 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,814 psi | 79% | 2533 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,084 psi | 66% | 2365 fps | 97% |
| ReloadSwiss RS 70 | 39.3 gr | 80% | 33,649 psi | 65% | 2372 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 41,510 psi | 81% | 2444 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 92% | 42,293 psi | 82% | 2520 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 39,073 psi | 76% | 2372 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,072 psi | 74% | 2359 fps | 97.1% |
| Shooters World SW4350 | <<locked>> | 80% | 36,260 psi | 70% | 2336 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,525 psi | 83% | 2493 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,265 psi | 84% | 2365 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,028 psi | 72% | 2300 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 41,887 psi | 81% | 2516 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 41,989 psi | 82% | 2444 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 31,169 psi | 61% | 2313 fps | 99.2% |
| Somchem S385 | <<locked>> | 90% | 40,147 psi | 78% | 2451 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 40,059 psi | 78% | 2382 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,027 psi | 70% | 2352 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 94% | 39,436 psi | 77% | 2428 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 35,505 psi | 69% | 2352 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 80% | 26,861 psi | 52% | 2201 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,302 psi | 69% | 2326 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 36,753 psi | 71% | 2398 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,932 psi | 48% | 2208 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 94% | 42,438 psi | 82% | 2490 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 | 142gr | Nosler AccuBond Long Range. Alliant Reloder-26 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,700 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 142.0 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, ReloadSwiss RS 70, Norma MRP rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 142gr | Nosler AccuBond Long Range 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.