Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 125gr | CutEdge LZR bullet and 55 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 62.
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 2495 | <<locked>> | 82% | 44,643 psi | 87% | 2602 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,090 psi | 82% | 2648 fps | 96.4% |
| Accurate 4064 | <<locked>> | 84% | 45,049 psi | 87% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 44,657 psi | 87% | 2717 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 84% | 44,019 psi | 85% | 2625 fps | 98.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 44,759 psi | 87% | 2769 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 44,048 psi | 86% | 2654 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 82% | 44,324 psi | 86% | 2664 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 92% | 43,845 psi | 85% | 2730 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 43,830 psi | 85% | 2749 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,263 psi | 78% | 2680 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,991 psi | 87% | 2841 fps | 98.6% |
| Bofors RP3 | <<locked>> | 84% | 43,729 psi | 85% | 2654 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 84% | 44,556 psi | 87% | 2661 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 90% | 44,324 psi | 86% | 2710 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 46,180 psi | 90% | 2717 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 45,237 psi | 88% | 2710 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 69% | 1726 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 46,282 psi | 90% | 2661 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,122 psi | 90% | 2635 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,195 psi | 90% | 2661 fps | 96.2% |
| IMR 4831 | <<locked>> | 94% | 45,556 psi | 88% | 2717 fps | 98.8% |
| IMR 4895 | <<locked>> | 82% | 45,469 psi | 88% | 2697 fps | 99.5% |
| Lovex S062 | <<locked>> | 84% | 46,122 psi | 90% | 2661 fps | 99.9% |
| Lovex S065 | <<locked>> | 90% | 45,847 psi | 89% | 2661 fps | 97.6% |
| Lovex S070 | <<locked>> | 92% | 46,253 psi | 90% | 2687 fps | 96.6% |
| Norma 203B | <<locked>> | 84% | 46,528 psi | 90% | 2703 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 44,425 psi | 86% | 2710 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 84% | 46,528 psi | 90% | 2723 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 94% | 46,311 psi | 90% | 2756 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,100 psi | 70% | 1765 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 44,918 psi | 87% | 2644 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 43,497 psi | 84% | 2753 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 44,382 psi | 86% | 2736 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 44,005 psi | 85% | 2753 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 82% | 45,237 psi | 88% | 2625 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 86% | 43,918 psi | 85% | 2654 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 45,847 psi | 89% | 2661 fps | 97.6% |
| Shooters World Precision | <<locked>> | 84% | 46,122 psi | 90% | 2661 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 92% | 46,253 psi | 90% | 2687 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 45,397 psi | 88% | 2710 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 46,296 psi | 90% | 2579 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 45,252 psi | 88% | 2605 fps | 96.1% |
| Somchem S355 | <<locked>> | 86% | 44,396 psi | 86% | 2651 fps | 99.6% |
| Somchem S365 | <<locked>> | 96% | 45,556 psi | 88% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 44,976 psi | 87% | 2602 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 45,513 psi | 88% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 45,571 psi | 89% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 43,700 psi | 85% | 2661 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 44,034 psi | 86% | 2605 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 45,672 psi | 89% | 2713 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,338 psi | 86% | 2756 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 46,456 psi | 90% | 2690 fps | 99.9% |
| Winchester 760 | <<locked>> | 90% | 44,643 psi | 87% | 2717 fps | 96.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,882 psi | 70% | 2684 fps | 99.1% |
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 2495 | <<locked>> | 80% | 41,771 psi | 81% | 2552 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 38,972 psi | 76% | 2585 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,523 psi | 77% | 2549 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,605 psi | 65% | 2487 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,015 psi | 76% | 2526 fps | 97.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,684 psi | 81% | 2707 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,450 psi | 75% | 2543 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,292 psi | 80% | 2605 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,997 psi | 66% | 2503 fps | 95.8% |
| Alliant Reloder-17 | 38.7 gr | 80% | 33,170 psi | 64% | 2510 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,327 psi | 57% | 2405 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,419 psi | 71% | 2651 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 38,029 psi | 74% | 2543 fps | 99% |
| Hodgdon H380 | <<locked>> | 80% | 38,870 psi | 75% | 2549 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 41,568 psi | 81% | 2654 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,037 psi | 56% | 2343 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,409 psi | 82% | 2657 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,266 psi | 51% | 1535 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,973 psi | 80% | 2559 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,352 psi | 84% | 2582 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,410 psi | 84% | 2608 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 32,547 psi | 63% | 2444 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 42,337 psi | 82% | 2638 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 40,582 psi | 79% | 2556 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 37,724 psi | 73% | 2500 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 40,799 psi | 79% | 2582 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 40,683 psi | 79% | 2595 fps | 98.8% |
| Norma URP | <<locked>> | 84% | 34,084 psi | 66% | 2493 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 40,350 psi | 78% | 2608 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 40,524 psi | 79% | 2641 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,745 psi | 52% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,363 psi | 76% | 2536 fps | 95.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,360 psi | 69% | 2579 fps | 99.7% |
| ReloadSwiss RS 62 | 40.6 gr | 84% | 33,315 psi | 65% | 2500 fps | 95% |
| ReloadSwiss RS 70 | 42.3 gr | 86% | 35,926 psi | 70% | 2569 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 42,453 psi | 82% | 2575 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 35,737 psi | 69% | 2490 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,724 psi | 73% | 2500 fps | 95.4% |
| Shooters World Precision | <<locked>> | 80% | 40,582 psi | 79% | 2556 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 40,799 psi | 79% | 2582 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,898 psi | 72% | 2539 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,305 psi | 74% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,409 psi | 82% | 2552 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 36,593 psi | 71% | 2497 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 26,455 psi | 51% | 2323 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 42,090 psi | 82% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,656 psi | 83% | 2566 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,809 psi | 68% | 2431 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 33,330 psi | 65% | 2441 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 41,046 psi | 80% | 2552 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,911 psi | 68% | 2490 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 90% | 31,415 psi | 61% | 2474 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,792 psi | 60% | 2359 fps | 96.5% |
| Winchester 760 | <<locked>> | 88% | 41,568 psi | 81% | 2654 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,312 psi | 57% | 2480 fps | 95.9% |
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 79 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 125gr | CutEdge LZR. Alliant Reloder-26 delivers the highest muzzle velocity at 2,841 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,841 fps. Accurate 3100 gives the best case fill at 100 %, and 79 of the 79 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 6.5 x 58 mm Mauser Port. with the .264 | 125gr | CutEdge LZR they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, ADI AR 2209, ADI AR 2213 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.