Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 145gr | Barnes Match Burner BT 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>> | 94% | 43,236 psi | 90% | 2503 fps | 98.5% |
| Accurate 4350 | <<locked>> | 84% | 42,177 psi | 88% | 2497 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 40,959 psi | 86% | 2507 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,105 psi | 90% | 2526 fps | 96.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,221 psi | 90% | 2575 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 40,959 psi | 86% | 2526 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,308 psi | 90% | 2605 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 92% | 42,815 psi | 89% | 2631 fps | 99.6% |
| Bofors RP15 | <<locked>> | 96% | 42,627 psi | 89% | 2562 fps | 96% |
| Bofors RP5 | <<locked>> | 94% | 43,221 psi | 90% | 2575 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 82% | 40,886 psi | 85% | 2438 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 41,046 psi | 86% | 2451 fps | 99.9% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,641 psi | 89% | 2635 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 82% | 40,379 psi | 84% | 2500 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 76% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 41,597 psi | 87% | 2438 fps | 96.8% |
| IMR 4831 | <<locked>> | 88% | 41,684 psi | 87% | 2474 fps | 99.4% |
| Lovex S065 | <<locked>> | 82% | 42,467 psi | 89% | 2438 fps | 98.6% |
| Lovex S070 | <<locked>> | 84% | 43,308 psi | 90% | 2474 fps | 97.9% |
| Lovex S071 | <<locked>> | 98% | 41,466 psi | 87% | 2474 fps | 98.2% |
| Norma MRP | <<locked>> | 92% | 42,540 psi | 89% | 2592 fps | 97.6% |
| Norma URP | <<locked>> | 84% | 41,887 psi | 88% | 2490 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 43,294 psi | 90% | 2533 fps | 98.5% |
| Ramshot Magnum | <<locked>> | 94% | 41,147 psi | 86% | 2520 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 78% | 1670 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 42,148 psi | 88% | 2520 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 40,886 psi | 85% | 2533 fps | 98.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,163 psi | 88% | 2625 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 90% | 42,221 psi | 88% | 2513 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 42,467 psi | 89% | 2438 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 84% | 43,308 psi | 90% | 2474 fps | 97.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,785 psi | 87% | 2388 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,829 psi | 87% | 2507 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 40,799 psi | 85% | 2500 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 42,902 psi | 90% | 2497 fps | 97.1% |
| Unknown powder | <<locked>> | 82% | 42,351 psi | 88% | 2490 fps | 99% |
| Vihtavuori N150 | <<locked>> | 84% | 43,033 psi | 90% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 42,424 psi | 89% | 2467 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 94% | 40,596 psi | 85% | 2444 fps | 96% |
| Vihtavuori N550 | <<locked>> | 82% | 42,859 psi | 90% | 2503 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 92% | 43,091 psi | 90% | 2552 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 42,612 psi | 89% | 2461 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 42,090 psi | 88% | 2677 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% | 33,127 psi | 69% | 2300 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 36,840 psi | 77% | 2392 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,998 psi | 75% | 2402 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,567 psi | 85% | 2477 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,379 psi | 84% | 2516 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,426 psi | 55% | 2178 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,836 psi | 67% | 2339 fps | 95.6% |
| Alliant Reloder-26 | 42.2 gr | 82% | 29,965 psi | 63% | 2333 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 39,842 psi | 83% | 2503 fps | 95% |
| Bofors RP5 | <<locked>> | 92% | 40,379 psi | 84% | 2516 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 80% | 38,493 psi | 80% | 2385 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,663 psi | 70% | 2306 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,900 psi | 83% | 2575 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 37,768 psi | 79% | 2444 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 57% | 1453 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,680 psi | 77% | 2339 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 32,271 psi | 67% | 2277 fps | 97.3% |
| Lovex S065 | <<locked>> | 80% | 40,016 psi | 84% | 2388 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,203 psi | 80% | 2372 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,227 psi | 67% | 2280 fps | 95.4% |
| Norma MRP | 44 gr | 88% | 37,159 psi | 78% | 2477 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,738 psi | 77% | 2388 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,636 psi | 74% | 2375 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 92% | 38,377 psi | 80% | 2461 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,833 psi | 58% | 1490 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,695 psi | 77% | 2411 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,549 psi | 74% | 2415 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,869 psi | 77% | 2500 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 39,378 psi | 82% | 2454 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,016 psi | 84% | 2388 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 80% | 38,203 psi | 80% | 2372 fps | 96.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,117 psi | 82% | 2336 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,001 psi | 81% | 2451 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 33,170 psi | 69% | 2349 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,492 psi | 78% | 2388 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 39,537 psi | 83% | 2438 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 80% | 38,043 psi | 79% | 2336 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,639 psi | 83% | 2415 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 92% | 38,174 psi | 80% | 2395 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 40,364 psi | 84% | 2457 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 29,066 psi | 61% | 2251 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,130 psi | 78% | 2359 fps | 99.8% |
| Winchester StaBALL HD | 40.6 gr | 82% | 24,903 psi | 52% | 2208 fps | 96.3% |
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 61 powders for 6.5 x 57 R loaded with the .264 | 145gr | Barnes Match Burner BT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,677 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,677 fps. ADI AR 2217 gives the best case fill at 100 %, and 61 of the 61 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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 | 145gr | Barnes Match Burner BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, ADI AR 2217 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.