Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 140gr | Speer TBBC bullet and 36 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>> | 94% | 43,279 psi | 90% | 2552 fps | 98.4% |
| Accurate 4350 | <<locked>> | 84% | 42,235 psi | 88% | 2546 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 40,828 psi | 85% | 2552 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,163 psi | 90% | 2618 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 94% | 41,046 psi | 86% | 2575 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 40,683 psi | 85% | 2598 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 42,627 psi | 89% | 2677 fps | 99.4% |
| Bofors RP5 | <<locked>> | 94% | 43,163 psi | 90% | 2618 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 40,843 psi | 85% | 2497 fps | 99.9% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,409 psi | 89% | 2677 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 82% | 40,451 psi | 85% | 2549 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,535 psi | 76% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 41,669 psi | 87% | 2487 fps | 96.5% |
| IMR 4831 | <<locked>> | 88% | 41,437 psi | 87% | 2516 fps | 99.2% |
| Lovex S065 | <<locked>> | 82% | 42,366 psi | 89% | 2484 fps | 98.4% |
| Lovex S070 | <<locked>> | 84% | 43,091 psi | 90% | 2516 fps | 97.6% |
| Lovex S071 | <<locked>> | 98% | 41,234 psi | 86% | 2513 fps | 97.9% |
| Norma MRP | <<locked>> | 92% | 42,482 psi | 89% | 2638 fps | 97.3% |
| Norma URP | <<locked>> | 84% | 41,698 psi | 87% | 2536 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 43,178 psi | 90% | 2579 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,144 psi | 78% | 1706 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 42,003 psi | 88% | 2566 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 40,756 psi | 85% | 2575 fps | 98.7% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,264 psi | 88% | 2671 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 42,366 psi | 89% | 2484 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 84% | 43,091 psi | 90% | 2516 fps | 97.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,655 psi | 87% | 2431 fps | 97.1% |
| Somchem S365 | <<locked>> | 86% | 40,495 psi | 85% | 2543 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 42,699 psi | 89% | 2539 fps | 96.8% |
| Unknown powder | <<locked>> | 82% | 42,206 psi | 88% | 2539 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 84% | 42,699 psi | 89% | 2467 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 42,206 psi | 88% | 2510 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 82% | 42,931 psi | 90% | 2556 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 92% | 42,917 psi | 90% | 2595 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 42,453 psi | 89% | 2503 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 41,843 psi | 87% | 2723 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>> | 86% | 33,098 psi | 69% | 2343 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 36,753 psi | 77% | 2434 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,984 psi | 75% | 2448 fps | 98.4% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,408 psi | 84% | 2562 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,426 psi | 55% | 2218 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,720 psi | 66% | 2379 fps | 95.1% |
| Alliant Reloder-26 | 43.3 gr | 82% | 29,892 psi | 62% | 2372 fps | 95.3% |
| Bofors RP5 | <<locked>> | 92% | 40,408 psi | 84% | 2562 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,402 psi | 70% | 2346 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,755 psi | 83% | 2615 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 37,666 psi | 79% | 2487 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 57% | 1486 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 39,073 psi | 82% | 2434 fps | 95.7% |
| IMR 4831 | <<locked>> | 80% | 32,082 psi | 67% | 2313 fps | 96.9% |
| Lovex S065 | <<locked>> | 80% | 40,001 psi | 84% | 2438 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 38,116 psi | 80% | 2415 fps | 96.3% |
| Lovex S071 | <<locked>> | 92% | 34,272 psi | 72% | 2369 fps | 95.9% |
| Norma MRP | 45.1 gr | 88% | 36,985 psi | 77% | 2520 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 36,651 psi | 77% | 2431 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,491 psi | 74% | 2418 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,717 psi | 58% | 1522 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,463 psi | 76% | 2451 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,549 psi | 74% | 2457 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,825 psi | 77% | 2543 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,001 psi | 84% | 2438 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 80% | 38,116 psi | 80% | 2415 fps | 96.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,015 psi | 82% | 2379 fps | 96.4% |
| Somchem S365 | <<locked>> | 80% | 33,083 psi | 69% | 2392 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 37,463 psi | 78% | 2434 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 39,450 psi | 82% | 2484 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 80% | 37,855 psi | 79% | 2379 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,465 psi | 82% | 2457 fps | 98.7% |
| Vihtavuori N550 | <<locked>> | 80% | 40,190 psi | 84% | 2500 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,790 psi | 60% | 2283 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,115 psi | 78% | 2402 fps | 99.7% |
| Winchester StaBALL HD | 41.6 gr | 82% | 24,758 psi | 52% | 2238 fps | 95.6% |
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 36 powders for 6.5 x 57 R loaded with the .264 | 140gr | Speer TBBC. Winchester StaBALL HD delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,723 fps. Hodgdon Retumbo gives the best case fill at 100 %, and 36 of the 36 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 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon Retumbo, 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 | Speer TBBC 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.