Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 142gr | SUS-TAC HPT bullet and 40 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD 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% | 41,162 psi | 86% | 2487 fps | 97.8% |
| Accurate 4350 | <<locked>> | 84% | 40,248 psi | 84% | 2480 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 41,800 psi | 87% | 2543 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 82% | 41,800 psi | 87% | 2559 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 41,829 psi | 87% | 2562 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,597 psi | 87% | 2585 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 40,480 psi | 85% | 2605 fps | 99% |
| Bofors RP7 | <<locked>> | 82% | 42,206 psi | 88% | 2444 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 82% | 43,207 psi | 90% | 2543 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 41,829 psi | 87% | 2487 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 41,597 psi | 87% | 2543 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 76% | 1634 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 42,786 psi | 89% | 2477 fps | 96.7% |
| IMR 4831 | <<locked>> | 90% | 42,467 psi | 89% | 2507 fps | 99.3% |
| Lovex S065 | <<locked>> | 82% | 41,104 psi | 86% | 2428 fps | 98% |
| Lovex S070 | <<locked>> | 84% | 41,655 psi | 87% | 2457 fps | 97.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,061 psi | 88% | 2503 fps | 98% |
| Norma MRP | <<locked>> | 94% | 43,279 psi | 90% | 2625 fps | 97.4% |
| Norma URP | <<locked>> | 86% | 42,728 psi | 89% | 2526 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 41,582 psi | 87% | 2520 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 96% | 42,453 psi | 89% | 2559 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,956 psi | 77% | 1673 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 42,917 psi | 90% | 2552 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 41,858 psi | 87% | 2569 fps | 98.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,350 psi | 84% | 2595 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 92% | 43,134 psi | 90% | 2546 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 82% | 42,206 psi | 88% | 2444 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 41,104 psi | 86% | 2428 fps | 98% |
| Shooters World SW4350 | <<locked>> | 84% | 41,655 psi | 87% | 2457 fps | 97.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,815 psi | 89% | 2421 fps | 97.2% |
| Somchem S365 | <<locked>> | 88% | 41,481 psi | 87% | 2536 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 40,944 psi | 86% | 2477 fps | 96.1% |
| Unknown powder | <<locked>> | 84% | 43,236 psi | 90% | 2526 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 84% | 41,278 psi | 86% | 2415 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 40,712 psi | 85% | 2451 fps | 98.9% |
| Vihtavuori N550 | <<locked>> | 82% | 41,104 psi | 86% | 2493 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 92% | 40,886 psi | 85% | 2533 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 40,843 psi | 85% | 2448 fps | 99.9% |
| Winchester 760 | <<locked>> | 82% | 43,207 psi | 90% | 2543 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,830 psi | 89% | 2710 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>> | 88% | 33,663 psi | 70% | 2333 fps | 95.5% |
| Accurate 4350 | <<locked>> | 80% | 35,288 psi | 74% | 2379 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,708 psi | 73% | 2385 fps | 97.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,001 psi | 81% | 2503 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,237 psi | 53% | 2156 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 92% | 32,256 psi | 67% | 2365 fps | 95.2% |
| Alliant Reloder-26 | 42.3 gr | 84% | 30,676 psi | 64% | 2369 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 39,682 psi | 83% | 2395 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 40,335 psi | 84% | 2484 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,039 psi | 67% | 2287 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 82% | 38,856 psi | 81% | 2484 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 56% | 1457 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 37,652 psi | 79% | 2375 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 30,922 psi | 65% | 2260 fps | 96.4% |
| Lovex S065 | <<locked>> | 80% | 38,435 psi | 80% | 2375 fps | 97.4% |
| Lovex S070 | <<locked>> | 80% | 36,883 psi | 77% | 2359 fps | 95.7% |
| Lovex S071 | <<locked>> | 92% | 32,474 psi | 68% | 2303 fps | 95% |
| Norma MRP | 44 gr | 90% | 37,942 psi | 79% | 2513 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 35,302 psi | 74% | 2375 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 80% | 34,142 psi | 71% | 2359 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 94% | 39,204 psi | 82% | 2493 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,659 psi | 58% | 1496 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,969 psi | 73% | 2395 fps | 97.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,127 psi | 71% | 2395 fps | 96.6% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 37,666 psi | 79% | 2530 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 40,176 psi | 84% | 2490 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 39,682 psi | 83% | 2395 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,435 psi | 80% | 2375 fps | 97.4% |
| Shooters World SW4350 | <<locked>> | 80% | 36,883 psi | 77% | 2359 fps | 95.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,608 psi | 79% | 2323 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 31,763 psi | 66% | 2336 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 38,493 psi | 80% | 2428 fps | 95.4% |
| Unknown powder | <<locked>> | 80% | 38,087 psi | 80% | 2428 fps | 97.9% |
| Vihtavuori N150 | <<locked>> | 80% | 36,361 psi | 76% | 2323 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 37,942 psi | 79% | 2398 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 80% | 38,653 psi | 81% | 2444 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 27,470 psi | 57% | 2224 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,723 psi | 75% | 2346 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 40,335 psi | 84% | 2484 fps | 96.7% |
| Winchester StaBALL HD | 40.6 gr | 84% | 25,309 psi | 53% | 2234 fps | 96% |
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 40 powders for 6.5 x 57 R loaded with the .264 | 142gr | SUS-TAC HPT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,710 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,710 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 40 of the 40 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 142.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Hodgdon TrailBoss, Lovex S071 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, Winchester StaBALL HD, Norma MRP rank at the top here: for 6.5 x 57 R with the .264 | 142gr | SUS-TAC HPT 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.