Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 140gr | Remington PSP Core-Lokt bullet and 34 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and ReloadSwiss RS 76.
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% | 42,134 psi | 88% | 2539 fps | 98.3% |
| Accurate 4350 | <<locked>> | 82% | 41,205 psi | 86% | 2533 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 42,453 psi | 89% | 2592 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,308 psi | 88% | 2612 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 42,757 psi | 89% | 2615 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 42,351 psi | 88% | 2644 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 41,713 psi | 87% | 2667 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 42,308 psi | 88% | 2612 fps | 96% |
| Hodgdon H4350 | <<locked>> | 82% | 42,134 psi | 88% | 2520 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 42,540 psi | 89% | 2536 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,597 psi | 87% | 2671 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 82% | 42,047 psi | 88% | 2592 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 77% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 42,888 psi | 90% | 2520 fps | 97.1% |
| IMR 4831 | <<locked>> | 88% | 43,076 psi | 90% | 2556 fps | 99.5% |
| Lovex S070 | <<locked>> | 82% | 41,989 psi | 88% | 2507 fps | 97.6% |
| Lovex S071 | <<locked>> | 98% | 43,250 psi | 90% | 2559 fps | 98.5% |
| Norma MRP | <<locked>> | 90% | 41,336 psi | 86% | 2625 fps | 97.2% |
| Norma URP | <<locked>> | 82% | 40,625 psi | 85% | 2523 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 84% | 42,235 psi | 88% | 2569 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 94% | 42,989 psi | 90% | 2615 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,275 psi | 78% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 40,915 psi | 85% | 2552 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 42,395 psi | 89% | 2621 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 41,176 psi | 86% | 2661 fps | 97.3% |
| Shooters World SW4350 | <<locked>> | 82% | 41,989 psi | 88% | 2507 fps | 97.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 42,844 psi | 90% | 2467 fps | 97.6% |
| Somchem S365 | <<locked>> | 86% | 42,612 psi | 89% | 2589 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 41,684 psi | 87% | 2530 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 82% | 41,655 psi | 87% | 2457 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 42,192 psi | 88% | 2530 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 90% | 42,061 psi | 88% | 2589 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,104 psi | 86% | 2490 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 41,075 psi | 86% | 2713 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% | 32,314 psi | 68% | 2329 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 38,232 psi | 80% | 2474 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,304 psi | 78% | 2487 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,421 psi | 82% | 2552 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,485 psi | 57% | 2257 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,038 psi | 65% | 2369 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 29,196 psi | 61% | 2356 fps | 95.1% |
| Bofors RP5 | <<locked>> | 90% | 39,421 psi | 82% | 2552 fps | 95% |
| Hodgdon H4350 | <<locked>> | 80% | 39,813 psi | 83% | 2470 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,824 psi | 73% | 2382 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,073 psi | 82% | 2612 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 39,189 psi | 82% | 2533 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 57% | 1499 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,840 psi | 79% | 2418 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 33,446 psi | 70% | 2356 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 39,450 psi | 82% | 2454 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 33,431 psi | 70% | 2359 fps | 95.8% |
| Norma MRP | 45.7 gr | 86% | 36,143 psi | 76% | 2507 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 38,101 psi | 80% | 2470 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,956 psi | 77% | 2457 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 92% | 39,943 psi | 83% | 2552 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 58% | 1539 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,087 psi | 80% | 2493 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,898 psi | 77% | 2500 fps | 97.9% |
| ReloadSwiss RS 76 | 52.6 gr | 96% | 38,377 psi | 80% | 2595 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 80% | 39,450 psi | 82% | 2454 fps | 96.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,234 psi | 84% | 2418 fps | 97% |
| Somchem S365 | <<locked>> | 80% | 34,505 psi | 72% | 2428 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,492 psi | 76% | 2421 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 39,044 psi | 82% | 2408 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 39,537 psi | 83% | 2480 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 80% | 30,168 psi | 63% | 2323 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,406 psi | 80% | 2438 fps | 99.9% |
| Winchester StaBALL HD | 42.1 gr | 80% | 24,221 psi | 51% | 2224 fps | 95.5% |
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 34 powders for 6.5 x 57 R loaded with the .264 | 140gr | Remington PSP Core-Lokt. Winchester StaBALL HD delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,713 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 34 of the 34 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 1:10.5 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, Norma MRP, ReloadSwiss RS 76 rank at the top here: for 6.5 x 57 R with the .264 | 140gr | Remington PSP Core-Lokt 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.