Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 150gr | Sierra MatchKing bullet and 43 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% | 42,177 psi | 88% | 2448 fps | 98.7% |
| Accurate 4350 | <<locked>> | 82% | 41,075 psi | 86% | 2438 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 88% | 42,322 psi | 88% | 2477 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 42,337 psi | 88% | 2493 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,901 psi | 88% | 2467 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,090 psi | 88% | 2516 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 42,757 psi | 89% | 2520 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 42,453 psi | 89% | 2552 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 41,495 psi | 87% | 2569 fps | 99.6% |
| Bofors RP15 | <<locked>> | 94% | 41,510 psi | 87% | 2503 fps | 96.2% |
| Bofors RP5 | <<locked>> | 92% | 42,090 psi | 88% | 2516 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 82% | 42,931 psi | 90% | 2480 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 42,496 psi | 89% | 2438 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,510 psi | 87% | 2579 fps | 96.9% |
| Hodgdon Superformance | <<locked>> | 82% | 42,003 psi | 88% | 2497 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 76% | 1604 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 42,873 psi | 90% | 2428 fps | 97.5% |
| IMR 4831 | <<locked>> | 84% | 41,989 psi | 88% | 2441 fps | 99.6% |
| Lovex S070 | <<locked>> | 82% | 42,076 psi | 88% | 2415 fps | 98% |
| Lovex S071 | <<locked>> | 98% | 43,047 psi | 90% | 2464 fps | 98.8% |
| Norma 204 | <<locked>> | 84% | 42,728 psi | 89% | 2464 fps | 96.3% |
| Norma MRP | <<locked>> | 90% | 41,234 psi | 86% | 2530 fps | 97.7% |
| Norma URP | <<locked>> | 82% | 40,756 psi | 85% | 2431 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 84% | 42,206 psi | 88% | 2474 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 96% | 41,408 psi | 87% | 2493 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,144 psi | 78% | 1640 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 40,814 psi | 85% | 2457 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 42,264 psi | 88% | 2523 fps | 99.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 41,031 psi | 86% | 2569 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 88% | 41,075 psi | 86% | 2454 fps | 96.2% |
| Shooters World SW4350 | <<locked>> | 82% | 42,076 psi | 88% | 2415 fps | 98% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 43,018 psi | 90% | 2375 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,698 psi | 85% | 2448 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 42,453 psi | 89% | 2487 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 41,785 psi | 87% | 2441 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 82% | 42,163 psi | 88% | 2425 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 92% | 40,886 psi | 85% | 2415 fps | 96.6% |
| Vihtavuori N550 | <<locked>> | 82% | 41,640 psi | 87% | 2431 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 90% | 42,090 psi | 88% | 2493 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 41,162 psi | 86% | 2398 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 43,221 psi | 90% | 2484 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 41,060 psi | 86% | 2618 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,814 psi | 85% | 2418 fps | 95.8% |
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>> | 82% | 30,168 psi | 63% | 2195 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 38,247 psi | 80% | 2382 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 86% | 39,566 psi | 83% | 2421 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,217 psi | 78% | 2392 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,233 psi | 82% | 2415 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,378 psi | 82% | 2461 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,398 psi | 57% | 2175 fps | 97.5% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,053 psi | 65% | 2290 fps | 95.9% |
| Alliant Reloder-26 | 41.4 gr | 80% | 29,095 psi | 61% | 2277 fps | 95.9% |
| Bofors RP15 | <<locked>> | 92% | 38,856 psi | 81% | 2448 fps | 95.3% |
| Bofors RP5 | <<locked>> | 90% | 39,378 psi | 82% | 2461 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 40,118 psi | 84% | 2428 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,925 psi | 73% | 2293 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,885 psi | 81% | 2520 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 39,001 psi | 81% | 2438 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 57% | 1434 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,855 psi | 79% | 2329 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 36,869 psi | 77% | 2343 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 39,392 psi | 82% | 2359 fps | 97.4% |
| Lovex S071 | <<locked>> | 88% | 31,473 psi | 66% | 2228 fps | 95.6% |
| Norma 204 | <<locked>> | 82% | 39,929 psi | 83% | 2408 fps | 95.4% |
| Norma MRP | 42.2 gr | 84% | 33,678 psi | 70% | 2362 fps | 95% |
| Norma URP | <<locked>> | 80% | 38,043 psi | 79% | 2379 fps | 99% |
| Ramshot Hunter | <<locked>> | 80% | 36,898 psi | 77% | 2369 fps | 97.4% |
| Ramshot Magnum | <<locked>> | 92% | 36,027 psi | 75% | 2382 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 58% | 1467 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,116 psi | 80% | 2402 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,985 psi | 77% | 2415 fps | 98.4% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,694 psi | 75% | 2444 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 86% | 38,334 psi | 80% | 2398 fps | 95.4% |
| Shooters World SW4350 | <<locked>> | 80% | 39,392 psi | 82% | 2359 fps | 97.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,263 psi | 84% | 2326 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 37,971 psi | 79% | 2392 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 34,519 psi | 72% | 2339 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 36,550 psi | 76% | 2333 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 80% | 39,378 psi | 82% | 2375 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 35,940 psi | 75% | 2316 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 38,972 psi | 81% | 2379 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 30,327 psi | 63% | 2247 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,566 psi | 81% | 2349 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,393 psi | 84% | 2431 fps | 97.5% |
| Winchester StaBALL HD | 39.8 gr | 80% | 24,192 psi | 51% | 2156 fps | 96.5% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,334 psi | 80% | 2369 fps | 95% |
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 43 powders for 6.5 x 57 R loaded with the .264 | 150gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,618 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,618 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 43 of the 43 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 150.0 gr projectile in 0.264" calls for a 1:8.0 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 | 150gr | Sierra MatchKing 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.