Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 140gr | Swift A-Frame bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Alliant Reloder-26 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>> | 92% | 42,076 psi | 88% | 2536 fps | 98.3% |
| Accurate 4350 | <<locked>> | 82% | 40,799 psi | 85% | 2526 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 42,090 psi | 88% | 2585 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 42,424 psi | 89% | 2608 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 42,018 psi | 88% | 2635 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 90% | 41,365 psi | 86% | 2657 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 82% | 42,032 psi | 88% | 2513 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 42,148 psi | 88% | 2526 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 41,713 psi | 87% | 2582 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 77% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 42,815 psi | 89% | 2520 fps | 97% |
| IMR 4831 | <<locked>> | 88% | 42,699 psi | 89% | 2546 fps | 99.5% |
| Lovex S070 | <<locked>> | 82% | 41,640 psi | 87% | 2497 fps | 97.5% |
| Lovex S071 | <<locked>> | 98% | 42,917 psi | 90% | 2552 fps | 98.4% |
| Norma MRP | <<locked>> | 90% | 41,017 psi | 86% | 2615 fps | 97.1% |
| Norma URP | <<locked>> | 84% | 42,989 psi | 90% | 2566 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 84% | 41,901 psi | 88% | 2562 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 94% | 42,728 psi | 89% | 2608 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,275 psi | 78% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 43,279 psi | 90% | 2595 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 42,090 psi | 88% | 2612 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 40,915 psi | 85% | 2651 fps | 97.2% |
| Shooters World SW4350 | <<locked>> | 82% | 41,640 psi | 87% | 2497 fps | 97.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 42,757 psi | 89% | 2464 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,105 psi | 90% | 2585 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 42,177 psi | 88% | 2579 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 41,350 psi | 86% | 2520 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 82% | 41,249 psi | 86% | 2451 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 41,858 psi | 87% | 2523 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 90% | 41,930 psi | 88% | 2585 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,075 psi | 86% | 2487 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 40,799 psi | 85% | 2707 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>> | 84% | 31,995 psi | 67% | 2323 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 38,101 psi | 80% | 2470 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,941 psi | 77% | 2477 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,180 psi | 57% | 2247 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,750 psi | 68% | 2415 fps | 95.9% |
| Alliant Reloder-26 | 44.6 gr | 82% | 31,038 psi | 65% | 2411 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 39,436 psi | 82% | 2461 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,679 psi | 72% | 2379 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 80% | 38,899 psi | 81% | 2523 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,195 psi | 57% | 1496 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,739 psi | 79% | 2415 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 33,315 psi | 70% | 2349 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 39,088 psi | 82% | 2444 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 33,330 psi | 70% | 2352 fps | 95.7% |
| Norma MRP | 45.4 gr | 86% | 35,839 psi | 75% | 2500 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 37,724 psi | 79% | 2461 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 80% | 36,622 psi | 77% | 2451 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 92% | 39,668 psi | 83% | 2543 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,818 psi | 58% | 1535 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,739 psi | 79% | 2484 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,564 psi | 76% | 2490 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,174 psi | 80% | 2585 fps | 96% |
| Shooters World SW4350 | <<locked>> | 80% | 39,088 psi | 82% | 2444 fps | 96.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,132 psi | 84% | 2411 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,335 psi | 84% | 2530 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,389 psi | 72% | 2425 fps | 99.9% |
| Somchem S385 | <<locked>> | 86% | 38,798 psi | 81% | 2467 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 38,914 psi | 81% | 2405 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 39,233 psi | 82% | 2470 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,023 psi | 63% | 2320 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,319 psi | 80% | 2434 fps | 99.8% |
| Winchester StaBALL HD | 41.8 gr | 80% | 24,004 psi | 50% | 2215 fps | 95.3% |
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 32 powders for 6.5 x 57 R loaded with the .264 | 140gr | Swift A-Frame. Winchester StaBALL HD delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,707 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 32 of the 32 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 77–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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. Winchester StaBALL HD, Alliant Reloder-26, Norma MRP rank at the top here: for 6.5 x 57 R with the .264 | 140gr | Swift A-Frame 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.