Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 130gr | Nosler AccuBond bullet and 47 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 Alliant Reloder-16.
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% | 43,729 psi | 85% | 2631 fps | 97.4% |
| Accurate 4350 | <<locked>> | 90% | 46,021 psi | 89% | 2690 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 82% | 44,599 psi | 87% | 2589 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 44,715 psi | 87% | 2615 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 90% | 44,556 psi | 87% | 2697 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 86% | 44,686 psi | 87% | 2720 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,121 psi | 86% | 2710 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,856 psi | 75% | 2615 fps | 96.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 46,267 psi | 90% | 2818 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 44,643 psi | 87% | 2621 fps | 99.9% |
| Bofors RP7 | <<locked>> | 86% | 44,947 psi | 87% | 2592 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 82% | 45,527 psi | 88% | 2631 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 88% | 45,237 psi | 88% | 2680 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 44,179 psi | 86% | 2635 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 44,933 psi | 87% | 2703 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,955 psi | 70% | 1703 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 45,629 psi | 89% | 2628 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,932 psi | 85% | 2575 fps | 96.3% |
| IMR 4831 | <<locked>> | 90% | 43,830 psi | 85% | 2635 fps | 98.9% |
| Lovex S065 | <<locked>> | 88% | 46,325 psi | 90% | 2625 fps | 98.2% |
| Lovex S070 | <<locked>> | 88% | 44,411 psi | 86% | 2608 fps | 96.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,653 psi | 75% | 2533 fps | 96% |
| Norma MRP | <<locked>> | 98% | 46,195 psi | 90% | 2779 fps | 97% |
| Norma URP | <<locked>> | 90% | 45,397 psi | 88% | 2680 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 44,353 psi | 86% | 2674 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,506 psi | 71% | 1742 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 45,658 psi | 89% | 2615 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 44,396 psi | 86% | 2720 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 45,571 psi | 89% | 2707 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 44,976 psi | 87% | 2726 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 84% | 44,831 psi | 87% | 2618 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 86% | 44,947 psi | 87% | 2592 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 46,325 psi | 90% | 2625 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 88% | 44,411 psi | 86% | 2608 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 45,963 psi | 89% | 2671 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 44,019 psi | 85% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 45,861 psi | 89% | 2575 fps | 96.9% |
| Somchem S355 | <<locked>> | 84% | 45,382 psi | 88% | 2618 fps | 99.8% |
| Somchem S365 | <<locked>> | 92% | 43,874 psi | 85% | 2687 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 46,354 psi | 90% | 2674 fps | 96.4% |
| Vihtavuori N150 | <<locked>> | 86% | 46,369 psi | 90% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 44,309 psi | 86% | 2625 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 88% | 43,584 psi | 85% | 2625 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 98% | 46,093 psi | 90% | 2733 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 43,947 psi | 85% | 2602 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 45,556 psi | 88% | 2684 fps | 96.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,436 psi | 77% | 2736 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>> | 94% | 38,116 psi | 74% | 2523 fps | 95.9% |
| Accurate 4350 | <<locked>> | 80% | 32,634 psi | 63% | 2411 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,989 psi | 82% | 2539 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,742 psi | 81% | 2559 fps | 99.7% |
| Alliant Reloder-16 | 36.8 gr | 80% | 32,576 psi | 63% | 2421 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,347 psi | 71% | 2546 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,427 psi | 55% | 2336 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,347 psi | 71% | 2556 fps | 95.6% |
| Alliant Reloder-26 | 44.7 gr | 88% | 32,692 psi | 63% | 2510 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 41,930 psi | 81% | 2569 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 42,293 psi | 82% | 2543 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 42,496 psi | 83% | 2575 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 39,697 psi | 77% | 2569 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,921 psi | 58% | 2326 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 86% | 41,713 psi | 81% | 2638 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 52% | 1519 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 42,685 psi | 83% | 2572 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,133 psi | 80% | 2520 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 31,546 psi | 61% | 2369 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 36,216 psi | 70% | 2421 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 39,073 psi | 76% | 2500 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 36,230 psi | 70% | 2484 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 40,292 psi | 78% | 2657 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 32,880 psi | 64% | 2415 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 84% | 36,230 psi | 70% | 2500 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,340 psi | 53% | 1558 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,714 psi | 83% | 2559 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,696 psi | 75% | 2605 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,271 psi | 63% | 2428 fps | 95.2% |
| ReloadSwiss RS 70 | 41.2 gr | 82% | 34,142 psi | 66% | 2480 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 39,537 psi | 77% | 2520 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 84% | 42,293 psi | 82% | 2543 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,216 psi | 70% | 2421 fps | 95.5% |
| Shooters World SW4350 | <<locked>> | 84% | 39,073 psi | 76% | 2500 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,379 psi | 78% | 2566 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,336 psi | 80% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,306 psi | 78% | 2467 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 39,871 psi | 77% | 2516 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 29,486 psi | 57% | 2369 fps | 97.9% |
| Somchem S385 | <<locked>> | 94% | 43,584 psi | 85% | 2625 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 38,218 psi | 74% | 2457 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,214 psi | 66% | 2415 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 80% | 33,692 psi | 65% | 2415 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 86% | 30,937 psi | 60% | 2411 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,533 psi | 65% | 2388 fps | 98.2% |
| Winchester 760 | <<locked>> | 84% | 39,697 psi | 77% | 2569 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,803 psi | 52% | 2356 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 47 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 130gr | Nosler AccuBond. Alliant Reloder-26 delivers the highest muzzle velocity at 2,818 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,818 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 47 of the 47 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 130.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, 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, Alliant Reloder-16 rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 130gr | Nosler AccuBond 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.