Load Specifications
Load data in caliber 6.5 x 57 with .264 | 140gr | Sierra MatchKing bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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% | 49,487 psi | 87% | 2657 fps | 99.3% |
| Accurate 4350 | <<locked>> | 88% | 48,356 psi | 85% | 2654 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 50,502 psi | 89% | 2785 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 82% | 48,762 psi | 86% | 2592 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 49,414 psi | 87% | 2690 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 98% | 50,618 psi | 89% | 2736 fps | 96.2% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 49,676 psi | 88% | 2694 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 49,211 psi | 87% | 2612 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 49,342 psi | 87% | 2710 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,096 psi | 89% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 49,037 psi | 87% | 2684 fps | 97.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 49,472 psi | 87% | 2736 fps | 97.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,647 psi | 88% | 2723 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,555 psi | 77% | 2661 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 49,458 psi | 87% | 2802 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,428 psi | 86% | 2717 fps | 97.2% |
| Bofors RP3 | <<locked>> | 82% | 49,647 psi | 88% | 2625 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 49,472 psi | 87% | 2736 fps | 97.6% |
| Bofors RP7 | <<locked>> | 86% | 49,269 psi | 87% | 2605 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 82% | 49,908 psi | 88% | 2635 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 50,430 psi | 89% | 2700 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 86% | 50,647 psi | 90% | 2664 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 49,632 psi | 88% | 2644 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,569 psi | 75% | 2680 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 88% | 50,082 psi | 89% | 2730 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 64% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,328 psi | 89% | 2644 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,879 psi | 90% | 2635 fps | 98.8% |
| IMR 4831 | <<locked>> | 90% | 49,066 psi | 87% | 2651 fps | 99.9% |
| Lovex S065 | <<locked>> | 88% | 51,155 psi | 90% | 2638 fps | 99.6% |
| Lovex S070 | <<locked>> | 88% | 48,878 psi | 86% | 2621 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,005 psi | 78% | 2566 fps | 98.5% |
| Norma 204 | <<locked>> | 90% | 50,299 psi | 89% | 2680 fps | 97.3% |
| Norma MRP | <<locked>> | 96% | 48,733 psi | 86% | 2756 fps | 98.7% |
| Norma URP | <<locked>> | 90% | 50,720 psi | 90% | 2694 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,066 psi | 85% | 2717 fps | 96% |
| Ramshot Hunter | <<locked>> | 90% | 49,400 psi | 87% | 2690 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,818 psi | 81% | 2657 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 66% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,082 psi | 89% | 2621 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,748 psi | 88% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 48,196 psi | 85% | 2674 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,140 psi | 89% | 2753 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,409 psi | 75% | 2677 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 84% | 49,879 psi | 88% | 2625 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,169 psi | 90% | 2667 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 94% | 48,022 psi | 85% | 2664 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 86% | 49,269 psi | 87% | 2605 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 51,155 psi | 90% | 2638 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 48,878 psi | 86% | 2621 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,169 psi | 90% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,082 psi | 90% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,473 psi | 89% | 2589 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,908 psi | 90% | 2717 fps | 97.8% |
| Somchem S355 | <<locked>> | 84% | 49,835 psi | 88% | 2618 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 49,705 psi | 88% | 2697 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 48,849 psi | 86% | 2651 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 51,155 psi | 90% | 2598 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 49,443 psi | 87% | 2638 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,155 psi | 90% | 2674 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 88% | 48,820 psi | 86% | 2644 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 96% | 48,936 psi | 87% | 2700 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 48,733 psi | 86% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,792 psi | 90% | 2707 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,889 psi | 79% | 2782 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,327 psi | 85% | 2635 fps | 97.1% |
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% | 33,011 psi | 58% | 2343 fps | 95.4% |
| Accurate 4350 | <<locked>> | 80% | 36,912 psi | 65% | 2441 fps | 98.3% |
| Accurate High Country | <<locked>> | 92% | 44,077 psi | 78% | 2671 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 45,701 psi | 81% | 2539 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,627 psi | 77% | 2585 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 47,355 psi | 84% | 2680 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 40,857 psi | 72% | 2526 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,122 psi | 82% | 2562 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,882 psi | 63% | 2444 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,669 psi | 72% | 2566 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,408 psi | 71% | 2523 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,567 psi | 72% | 2569 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,339 psi | 47% | 2215 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,836 psi | 56% | 2382 fps | 95.2% |
| Alliant Reloder-26 | 43.4 gr | 82% | 30,008 psi | 53% | 2375 fps | 95.4% |
| Bofors RP15 | <<locked>> | 96% | 42,453 psi | 75% | 2605 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 46,456 psi | 82% | 2575 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,567 psi | 72% | 2569 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 40,857 psi | 72% | 2451 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 46,760 psi | 83% | 2582 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 38,769 psi | 69% | 2480 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 41,756 psi | 74% | 2500 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,547 psi | 59% | 2349 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,885 psi | 71% | 2621 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 37,782 psi | 67% | 2493 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 48% | 1490 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 38,957 psi | 69% | 2434 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,366 psi | 75% | 2484 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 35,418 psi | 63% | 2395 fps | 98% |
| Lovex S065 | <<locked>> | 80% | 39,900 psi | 71% | 2434 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 38,029 psi | 67% | 2415 fps | 96.3% |
| Lovex S071 | <<locked>> | 90% | 32,111 psi | 57% | 2320 fps | 95% |
| Norma 204 | <<locked>> | 84% | 41,234 psi | 73% | 2516 fps | 95% |
| Norma MRP | 45.2 gr | 88% | 37,130 psi | 66% | 2523 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 36,579 psi | 65% | 2431 fps | 98.1% |
| Ramshot Grand | <<locked>> | 96% | 44,875 psi | 79% | 2657 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 35,621 psi | 63% | 2421 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 96% | 39,900 psi | 71% | 2539 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,644 psi | 49% | 1522 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,007 psi | 83% | 2572 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,207 psi | 76% | 2618 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,622 psi | 65% | 2457 fps | 98% |
| ReloadSwiss RS 70 | 41.9 gr | 80% | 35,462 psi | 63% | 2457 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,724 psi | 65% | 2539 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 43,642 psi | 77% | 2520 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,208 psi | 80% | 2562 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 42,235 psi | 75% | 2562 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 40,857 psi | 72% | 2451 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,900 psi | 71% | 2434 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 80% | 38,029 psi | 67% | 2415 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,947 psi | 79% | 2575 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,049 psi | 80% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,175 psi | 69% | 2385 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,829 psi | 74% | 2556 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 44,092 psi | 78% | 2523 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,228 psi | 59% | 2395 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 37,579 psi | 66% | 2438 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 41,959 psi | 74% | 2454 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,130 psi | 67% | 2434 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 39,421 psi | 70% | 2467 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 37,478 psi | 66% | 2434 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 28,935 psi | 51% | 2290 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,275 psi | 66% | 2408 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,769 psi | 69% | 2480 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,845 psi | 44% | 2244 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,163 psi | 75% | 2526 fps | 95.5% |
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 66 powders for 6.5 x 57 loaded with the .264 | 140gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,802 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 66 of the 66 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 140.0 gr projectile in 0.264" calls for a 1:9.5 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 6.5 x 57 with the .264 | 140gr | 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.