Load Specifications
Load data in caliber 6.5 x 58 mm Mauser Port. with .264 | 140gr | CutEdge LZR MAX bullet and 57 powders. The key underlying parameters are shown in the table above.
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 3100ᴾ | <<locked>> | 100% | 45,281 psi | 88% | 2562 fps | 98.2% |
| Accurate 4064 | <<locked>> | 82% | 44,831 psi | 87% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 44,512 psi | 86% | 2566 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 84% | 46,354 psi | 90% | 2520 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,412 psi | 90% | 2598 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 46,427 psi | 90% | 2539 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 46,267 psi | 90% | 2625 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 88% | 46,586 psi | 90% | 2648 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,844 psi | 83% | 2589 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,521 psi | 73% | 2493 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 44,831 psi | 87% | 2694 fps | 99.3% |
| Bofors RP3 | <<locked>> | 84% | 46,325 psi | 90% | 2549 fps | 100% |
| Bofors RP7 | <<locked>> | 86% | 43,961 psi | 85% | 2477 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 82% | 44,077 psi | 86% | 2507 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 88% | 44,092 psi | 86% | 2559 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 86% | 44,817 psi | 87% | 2526 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 45,963 psi | 89% | 2559 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 43,758 psi | 85% | 2582 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,766 psi | 69% | 1617 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 46,006 psi | 89% | 2507 fps | 99.7% |
| IMR 4350 | <<locked>> | 90% | 44,541 psi | 87% | 2510 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 45,890 psi | 89% | 2513 fps | 97.3% |
| IMR 4831 | <<locked>> | 92% | 45,440 psi | 88% | 2566 fps | 99.4% |
| Lovex S062 | <<locked>> | 82% | 45,643 psi | 89% | 2497 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 45,411 psi | 88% | 2510 fps | 98.4% |
| Lovex S070 | <<locked>> | 90% | 46,108 psi | 90% | 2543 fps | 97.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,217 psi | 72% | 2415 fps | 96.2% |
| Norma 203B | <<locked>> | 82% | 45,919 psi | 89% | 2543 fps | 99.9% |
| Norma MRP | <<locked>> | 98% | 44,962 psi | 87% | 2657 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 44,425 psi | 86% | 2562 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 82% | 46,050 psi | 89% | 2562 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 92% | 46,021 psi | 89% | 2602 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,318 psi | 71% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 44,469 psi | 86% | 2493 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 46,427 psi | 90% | 2648 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 44,251 psi | 86% | 2585 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 43,671 psi | 85% | 2602 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 86% | 46,586 psi | 90% | 2546 fps | 100% |
| Rottweil R 907 | <<locked>> | 86% | 43,961 psi | 85% | 2477 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 45,411 psi | 88% | 2510 fps | 98.4% |
| Shooters World Precision | <<locked>> | 82% | 45,643 psi | 89% | 2497 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 46,108 psi | 90% | 2543 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 44,860 psi | 87% | 2549 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 45,919 psi | 89% | 2421 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,875 psi | 87% | 2461 fps | 97.2% |
| Somchem S355 | <<locked>> | 84% | 44,164 psi | 86% | 2497 fps | 99.9% |
| Somchem S365 | <<locked>> | 94% | 45,745 psi | 89% | 2618 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 44,947 psi | 87% | 2552 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 86% | 45,107 psi | 88% | 2484 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 46,267 psi | 90% | 2559 fps | 99.4% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,483 psi | 86% | 2533 fps | 96% |
| Vihtavuori N540 | <<locked>> | 82% | 46,282 psi | 90% | 2490 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 45,513 psi | 88% | 2562 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 98% | 44,483 psi | 86% | 2605 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 46,079 psi | 89% | 2539 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,396 psi | 86% | 2566 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,247 psi | 74% | 2612 fps | 100% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 34,156 psi | 66% | 2349 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,235 psi | 82% | 2448 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,140 psi | 60% | 2290 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,959 psi | 80% | 2421 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 43,482 psi | 84% | 2546 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,959 psi | 80% | 2444 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,560 psi | 61% | 2310 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,360 psi | 69% | 2431 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,427 psi | 53% | 2228 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,172 psi | 68% | 2438 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,502 psi | 61% | 2392 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 40,466 psi | 79% | 2448 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,176 psi | 80% | 2425 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 41,234 psi | 80% | 2454 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 38,566 psi | 75% | 2454 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 84% | 41,974 psi | 82% | 2474 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,022 psi | 56% | 2218 fps | 96.9% |
| Hodgdon Superformance | <<locked>> | 86% | 40,698 psi | 79% | 2523 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 52% | 1444 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,047 psi | 84% | 2454 fps | 99.4% |
| IMR 4350 | <<locked>> | 88% | 41,756 psi | 81% | 2457 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,840 psi | 73% | 2356 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 30,414 psi | 59% | 2257 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 43,047 psi | 84% | 2454 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,288 psi | 69% | 2310 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 37,927 psi | 74% | 2385 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 34,940 psi | 68% | 2365 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 43,004 psi | 84% | 2490 fps | 99.7% |
| Norma MRP | <<locked>> | 94% | 39,044 psi | 76% | 2536 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 31,821 psi | 62% | 2300 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 43,134 psi | 84% | 2513 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,172 psi | 68% | 2385 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,905 psi | 52% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,684 psi | 81% | 2441 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,710 psi | 73% | 2487 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,966 psi | 60% | 2306 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 33,156 psi | 64% | 2369 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 38,261 psi | 74% | 2398 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 41,176 psi | 80% | 2425 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,288 psi | 69% | 2310 fps | 95.8% |
| Shooters World Precision | <<locked>> | 80% | 43,047 psi | 84% | 2454 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,927 psi | 74% | 2385 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,305 psi | 76% | 2448 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,422 psi | 79% | 2333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,276 psi | 76% | 2356 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 38,943 psi | 76% | 2402 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 28,442 psi | 55% | 2257 fps | 98.1% |
| Somchem S385 | <<locked>> | 92% | 39,349 psi | 76% | 2448 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 37,159 psi | 72% | 2343 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 32,953 psi | 64% | 2300 fps | 96.3% |
| Vihtavuori N165 | <<locked>> | 98% | 41,582 psi | 81% | 2480 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 43,395 psi | 84% | 2444 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,489 psi | 63% | 2300 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 84% | 27,731 psi | 54% | 2244 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,750 psi | 64% | 2283 fps | 98.4% |
| Winchester 760 | <<locked>> | 84% | 38,566 psi | 75% | 2454 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,730 psi | 50% | 2244 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 57 powders for 6.5 x 58 mm Mauser Port. loaded with the .264 | 140gr | CutEdge LZR MAX. Alliant Reloder-26 delivers the highest muzzle velocity at 2,694 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,694 fps. Accurate 3100 gives the best case fill at 100 %, and 57 of the 57 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (355 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:7.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-25 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.