Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 140gr | Speer Hot-Cor 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 42,598 psi | 89% | 2549 fps | 98.4% |
| Accurate 4350 | <<locked>> | 82% | 41,394 psi | 86% | 2536 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 42,670 psi | 89% | 2598 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,424 psi | 89% | 2618 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 94% | 43,221 psi | 90% | 2625 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 42,728 psi | 89% | 2651 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 41,872 psi | 87% | 2671 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 42,424 psi | 89% | 2618 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 82% | 42,569 psi | 89% | 2530 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 42,757 psi | 89% | 2539 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,669 psi | 87% | 2677 fps | 96.4% |
| Hodgdon Superformance | <<locked>> | 82% | 42,177 psi | 88% | 2595 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 76% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 40,466 psi | 85% | 2474 fps | 96.4% |
| IMR 4831 | <<locked>> | 88% | 43,250 psi | 90% | 2559 fps | 99.6% |
| Lovex S070 | <<locked>> | 82% | 42,192 psi | 88% | 2510 fps | 97.7% |
| Lovex S071 | <<locked>> | 96% | 40,944 psi | 86% | 2516 fps | 98.1% |
| Norma MRP | <<locked>> | 90% | 41,771 psi | 87% | 2635 fps | 97.4% |
| Norma URP | <<locked>> | 82% | 40,872 psi | 85% | 2526 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 84% | 42,438 psi | 89% | 2572 fps | 98.3% |
| Ramshot Magnum | <<locked>> | 92% | 40,306 psi | 84% | 2562 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 78% | 1726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 41,133 psi | 86% | 2556 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 42,554 psi | 89% | 2625 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 41,481 psi | 87% | 2671 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 82% | 42,192 psi | 88% | 2510 fps | 97.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 43,294 psi | 90% | 2477 fps | 97.7% |
| Somchem S365 | <<locked>> | 86% | 42,801 psi | 89% | 2592 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 41,843 psi | 87% | 2533 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 82% | 41,872 psi | 87% | 2464 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 42,627 psi | 89% | 2539 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 90% | 42,540 psi | 89% | 2598 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,524 psi | 87% | 2497 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 41,205 psi | 86% | 2717 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% | 32,503 psi | 68% | 2336 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 38,450 psi | 80% | 2480 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,492 psi | 78% | 2490 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,798 psi | 83% | 2562 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,630 psi | 58% | 2264 fps | 97.1% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,154 psi | 65% | 2372 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 29,327 psi | 61% | 2362 fps | 95.2% |
| Bofors RP5 | <<locked>> | 90% | 39,798 psi | 83% | 2562 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 80% | 40,001 psi | 84% | 2477 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,027 psi | 73% | 2388 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,175 psi | 82% | 2615 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 39,349 psi | 82% | 2536 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 57% | 1506 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,014 psi | 79% | 2425 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 33,649 psi | 70% | 2359 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,639 psi | 83% | 2457 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 31,662 psi | 66% | 2316 fps | 95.1% |
| Norma MRP | 45.9 gr | 86% | 36,274 psi | 76% | 2513 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 38,305 psi | 80% | 2474 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 80% | 37,130 psi | 78% | 2464 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 90% | 37,492 psi | 78% | 2500 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 58% | 1542 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,290 psi | 80% | 2500 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,028 psi | 77% | 2503 fps | 98% |
| ReloadSwiss RS 76 | 51.8 gr | 94% | 36,114 psi | 75% | 2539 fps | 95.2% |
| Shooters World SW4350 | <<locked>> | 80% | 39,639 psi | 83% | 2457 fps | 97% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,408 psi | 84% | 2421 fps | 97% |
| Somchem S365 | <<locked>> | 80% | 34,708 psi | 73% | 2434 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,883 psi | 77% | 2431 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 39,247 psi | 82% | 2415 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 37,449 psi | 78% | 2438 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 30,371 psi | 63% | 2329 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,783 psi | 81% | 2448 fps | 99.9% |
| Winchester StaBALL HD | 42.3 gr | 80% | 24,352 psi | 51% | 2234 fps | 95.7% |
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 | Speer Hot-Cor. Winchester StaBALL HD delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,717 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 76–90 %, 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 | Speer Hot-Cor 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.