Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 125gr | CutEdge LZR bullet and 34 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 Vihtavuori N555.
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% | 42,134 psi | 88% | 2667 fps | 96.9% |
| Accurate 4350 | <<locked>> | 88% | 41,336 psi | 86% | 2671 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 40,712 psi | 85% | 2687 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 84% | 40,611 psi | 85% | 2707 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,830 psi | 89% | 2753 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 41,800 psi | 87% | 2799 fps | 98.3% |
| Bofors RP3 | <<locked>> | 82% | 43,163 psi | 90% | 2664 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 42,989 psi | 90% | 2680 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 75% | 1752 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,641 psi | 89% | 2615 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,917 psi | 90% | 2621 fps | 95.8% |
| IMR 4831 | <<locked>> | 92% | 40,785 psi | 85% | 2644 fps | 98.2% |
| Lovex S065 | <<locked>> | 86% | 42,366 psi | 89% | 2618 fps | 97.2% |
| Lovex S070 | <<locked>> | 88% | 43,221 psi | 90% | 2654 fps | 96.3% |
| Norma URP | <<locked>> | 88% | 41,524 psi | 87% | 2674 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 43,033 psi | 90% | 2713 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,216 psi | 76% | 1791 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 43,308 psi | 90% | 2769 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 41,350 psi | 86% | 2697 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 40,756 psi | 85% | 2707 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 82% | 40,741 psi | 85% | 2612 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 42,366 psi | 89% | 2618 fps | 97.2% |
| Shooters World SW4350 | <<locked>> | 88% | 43,221 psi | 90% | 2654 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 41,989 psi | 88% | 2664 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 42,859 psi | 90% | 2543 fps | 100% |
| Somchem S355 | <<locked>> | 82% | 41,220 psi | 86% | 2612 fps | 99.4% |
| Somchem S365 | <<locked>> | 92% | 42,424 psi | 89% | 2733 fps | 100% |
| Unknown powder | <<locked>> | 86% | 42,221 psi | 88% | 2677 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 88% | 42,685 psi | 89% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 42,192 psi | 88% | 2651 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 86% | 42,801 psi | 89% | 2694 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 96% | 41,597 psi | 87% | 2720 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 42,931 psi | 90% | 2651 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,479 psi | 80% | 2776 fps | 99.9% |
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>> | 94% | 36,434 psi | 76% | 2552 fps | 95.1% |
| Accurate 4350 | <<locked>> | 82% | 33,460 psi | 70% | 2497 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,444 psi | 66% | 2457 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,157 psi | 73% | 2582 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,138 psi | 61% | 2421 fps | 95.8% |
| Alliant Reloder-26 | 47.1 gr | 90% | 33,736 psi | 70% | 2602 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 40,567 psi | 85% | 2615 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,935 psi | 60% | 2359 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 55% | 1562 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,089 psi | 84% | 2562 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,190 psi | 84% | 2566 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 31,241 psi | 65% | 2428 fps | 95.1% |
| Lovex S065 | <<locked>> | 82% | 37,318 psi | 78% | 2513 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 40,437 psi | 84% | 2598 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 33,881 psi | 71% | 2503 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 86% | 37,637 psi | 79% | 2598 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 56% | 1601 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,507 psi | 78% | 2648 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,257 psi | 69% | 2513 fps | 95.4% |
| ReloadSwiss RS 70 | 43.5 gr | 84% | 35,418 psi | 74% | 2579 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 37,985 psi | 79% | 2556 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,318 psi | 78% | 2513 fps | 95.7% |
| Shooters World SW4350 | <<locked>> | 86% | 40,437 psi | 84% | 2598 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,218 psi | 82% | 2608 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,248 psi | 84% | 2497 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,783 psi | 81% | 2562 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,181 psi | 59% | 2395 fps | 97.2% |
| Unknown powder | <<locked>> | 80% | 34,272 psi | 72% | 2503 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 32,967 psi | 69% | 2408 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,258 psi | 72% | 2477 fps | 96% |
| Vihtavuori N550 | <<locked>> | 80% | 34,867 psi | 73% | 2523 fps | 96.1% |
| Vihtavuori N555 | 42 gr | 88% | 31,705 psi | 66% | 2497 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,605 psi | 68% | 2428 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,340 psi | 57% | 2438 fps | 95.2% |
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 63 powders for 6.5 x 57 R loaded with the .264 | 125gr | CutEdge LZR. Alliant Reloder-26 delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,752 fps to 2,799 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 63 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 75–90 %, 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. 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, ReloadSwiss RS 70, Vihtavuori N555 rank at the top here: for 6.5 x 57 R 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, Alliant Reloder-19 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.