Load Specifications
Load data in caliber 6.5 x 57 with .264 | 145gr | Barnes Match Burner BT bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Alliant Reloder-16.
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>> | 98% | 49,443 psi | 87% | 2605 fps | 99.4% |
| Accurate 4350 | <<locked>> | 88% | 48,617 psi | 86% | 2605 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 50,560 psi | 89% | 2736 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 48,617 psi | 86% | 2536 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 49,574 psi | 88% | 2641 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 98% | 50,633 psi | 90% | 2687 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 49,139 psi | 87% | 2556 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 49,574 psi | 88% | 2657 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,096 psi | 89% | 2677 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 48,878 psi | 86% | 2628 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 49,516 psi | 88% | 2687 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,951 psi | 88% | 2677 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,308 psi | 77% | 2605 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 49,269 psi | 87% | 2746 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,457 psi | 86% | 2667 fps | 97.5% |
| Bofors RP3 | <<locked>> | 82% | 49,719 psi | 88% | 2572 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 49,516 psi | 88% | 2687 fps | 97.8% |
| Bofors RP7 | <<locked>> | 86% | 49,371 psi | 87% | 2556 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 49,980 psi | 88% | 2585 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 50,792 psi | 90% | 2654 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 50,531 psi | 89% | 2608 fps | 98% |
| Hodgdon H4831 | <<locked>> | 96% | 50,662 psi | 90% | 2635 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 49,574 psi | 88% | 2589 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,641 psi | 75% | 2635 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 88% | 50,024 psi | 88% | 2677 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 64% | 1627 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,169 psi | 90% | 2566 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,285 psi | 89% | 2592 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 51,024 psi | 90% | 2582 fps | 98.9% |
| IMR 4831 | <<locked>> | 90% | 49,066 psi | 87% | 2598 fps | 100% |
| IMR 7828 SSC | <<locked>> | 98% | 47,979 psi | 85% | 2654 fps | 95.9% |
| Lovex S065 | <<locked>> | 88% | 50,966 psi | 90% | 2582 fps | 99.7% |
| Lovex S070 | <<locked>> | 88% | 49,066 psi | 87% | 2572 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,164 psi | 78% | 2520 fps | 98.7% |
| Norma 204 | <<locked>> | 90% | 50,386 psi | 89% | 2631 fps | 97.6% |
| Norma MRP | <<locked>> | 96% | 48,820 psi | 86% | 2707 fps | 98.8% |
| Norma URP | <<locked>> | 90% | 50,662 psi | 90% | 2638 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,167 psi | 85% | 2667 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 90% | 49,487 psi | 87% | 2638 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,137 psi | 82% | 2615 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 66% | 1670 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,212 psi | 89% | 2572 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,705 psi | 88% | 2671 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 48,312 psi | 85% | 2625 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,038 psi | 88% | 2697 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,163 psi | 75% | 2625 fps | 97.6% |
| Rottweil R 903 | <<locked>> | 84% | 49,908 psi | 88% | 2569 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 47,935 psi | 85% | 2562 fps | 96% |
| Rottweil R 905 | <<locked>> | 94% | 48,153 psi | 85% | 2618 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 86% | 49,371 psi | 87% | 2556 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 50,966 psi | 90% | 2582 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 49,066 psi | 87% | 2572 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,024 psi | 90% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 50,966 psi | 90% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,415 psi | 89% | 2533 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,763 psi | 90% | 2661 fps | 98% |
| Somchem S355 | <<locked>> | 84% | 50,198 psi | 89% | 2569 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 49,777 psi | 88% | 2644 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 48,704 psi | 86% | 2595 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 86% | 50,923 psi | 90% | 2543 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 49,676 psi | 88% | 2589 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 98% | 47,805 psi | 85% | 2572 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 88% | 48,791 psi | 86% | 2592 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 49,153 psi | 87% | 2651 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 49,327 psi | 87% | 2697 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 48,892 psi | 86% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,792 psi | 90% | 2654 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,092 psi | 80% | 2733 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,298 psi | 85% | 2585 fps | 97.3% |
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 | 59% | 2300 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 36,840 psi | 65% | 2392 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 44,019 psi | 78% | 2621 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 45,847 psi | 81% | 2490 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,756 psi | 72% | 2477 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 47,311 psi | 84% | 2628 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,267 psi | 82% | 2510 fps | 100% |
| Alliant Reloder-16 | 37.3 gr | 80% | 35,998 psi | 64% | 2402 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,756 psi | 72% | 2520 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,567 psi | 72% | 2477 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,379 psi | 71% | 2516 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,426 psi | 47% | 2178 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,836 psi | 56% | 2339 fps | 95.6% |
| Alliant Reloder-26 | 42.2 gr | 82% | 29,965 psi | 53% | 2333 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 39,842 psi | 70% | 2503 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,427 psi | 82% | 2520 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,379 psi | 71% | 2516 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,988 psi | 72% | 2405 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 47,079 psi | 83% | 2536 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 38,798 psi | 69% | 2434 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 41,698 psi | 74% | 2454 fps | 96% |
| Hodgdon H4831 | <<locked>> | 94% | 47,340 psi | 84% | 2579 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,663 psi | 60% | 2306 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,900 psi | 71% | 2575 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 37,768 psi | 67% | 2444 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 48% | 1453 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,182 psi | 85% | 2520 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,680 psi | 65% | 2339 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,525 psi | 75% | 2438 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 35,607 psi | 63% | 2352 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 96% | 45,121 psi | 80% | 2598 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 40,016 psi | 71% | 2388 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,203 psi | 68% | 2372 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,227 psi | 57% | 2280 fps | 95.4% |
| Norma 204 | <<locked>> | 84% | 41,104 psi | 73% | 2467 fps | 95.2% |
| Norma MRP | 44 gr | 88% | 37,159 psi | 66% | 2477 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,738 psi | 65% | 2388 fps | 98.4% |
| Ramshot Grand | <<locked>> | 96% | 44,875 psi | 79% | 2608 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 35,636 psi | 63% | 2375 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 96% | 39,755 psi | 70% | 2490 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,833 psi | 49% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,050 psi | 83% | 2520 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,279 psi | 77% | 2566 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,695 psi | 65% | 2411 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,549 psi | 63% | 2415 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,869 psi | 65% | 2500 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 43,830 psi | 77% | 2474 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,150 psi | 80% | 2513 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 39,378 psi | 70% | 2454 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 40,988 psi | 72% | 2405 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,016 psi | 71% | 2388 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 80% | 38,203 psi | 68% | 2372 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,005 psi | 80% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,107 psi | 80% | 2382 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,117 psi | 69% | 2336 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,001 psi | 69% | 2451 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 44,222 psi | 78% | 2474 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,170 psi | 59% | 2349 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,492 psi | 66% | 2388 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 42,163 psi | 75% | 2408 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,072 psi | 67% | 2385 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 39,508 psi | 70% | 2421 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 37,710 psi | 67% | 2392 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,066 psi | 51% | 2251 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 46,108 psi | 82% | 2638 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,130 psi | 66% | 2359 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,073 psi | 69% | 2441 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,903 psi | 44% | 2208 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,293 psi | 75% | 2480 fps | 95.8% |
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 69 powders for 6.5 x 57 loaded with the .264 | 145gr | Barnes Match Burner BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,746 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,746 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 64–90 %, 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. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for 6.5 x 57 with the .264 | 145gr | Barnes Match Burner BT 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.