Load Specifications
Load data in caliber 6.5 x 57 with .264 | 140gr | Speer IRB bullet and 65 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country 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>> | 96% | 48,080 psi | 85% | 2644 fps | 99.3% |
| Accurate 4350 | <<locked>> | 88% | 50,256 psi | 89% | 2690 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 49,037 psi | 87% | 2769 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 82% | 49,908 psi | 88% | 2618 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 48,022 psi | 85% | 2677 fps | 97.2% |
| ADI AR 2213 | <<locked>> | 96% | 48,921 psi | 86% | 2720 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 50,778 psi | 90% | 2644 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 51,082 psi | 90% | 2743 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 48,327 psi | 85% | 2710 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 50,517 psi | 89% | 2717 fps | 97.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 48,037 psi | 85% | 2723 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 48,631 psi | 86% | 2713 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,049 psi | 80% | 2697 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 47,935 psi | 85% | 2782 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,198 psi | 89% | 2756 fps | 97.8% |
| Bofors RP5 | <<locked>> | 96% | 48,037 psi | 85% | 2723 fps | 97.5% |
| Bofors RP7 | <<locked>> | 86% | 50,908 psi | 90% | 2644 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 86% | 48,921 psi | 86% | 2684 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 84% | 48,863 psi | 86% | 2644 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 48,153 psi | 85% | 2628 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,222 psi | 78% | 2733 fps | 97.2% |
| Hodgdon Superformance | <<locked>> | 86% | 48,283 psi | 85% | 2710 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,506 psi | 65% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 48,457 psi | 86% | 2621 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 49,139 psi | 87% | 2615 fps | 98.7% |
| IMR 4831 | <<locked>> | 90% | 50,792 psi | 90% | 2684 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,908 psi | 90% | 2664 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 98% | 49,908 psi | 88% | 2753 fps | 96.5% |
| Lovex S065 | <<locked>> | 86% | 49,356 psi | 87% | 2618 fps | 99.5% |
| Lovex S070 | <<locked>> | 88% | 50,488 psi | 89% | 2657 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,861 psi | 81% | 2605 fps | 99% |
| Norma 204 | <<locked>> | 88% | 48,602 psi | 86% | 2664 fps | 97.2% |
| Norma MRP | <<locked>> | 96% | 50,879 psi | 90% | 2799 fps | 99.1% |
| Norma URP | <<locked>> | 88% | 49,226 psi | 87% | 2677 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 49,951 psi | 88% | 2766 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 88% | 47,848 psi | 85% | 2671 fps | 99.2% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,863 psi | 85% | 2703 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 66% | 1719 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 48,066 psi | 85% | 2707 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 49,922 psi | 88% | 2710 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 48,428 psi | 86% | 2730 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,903 psi | 78% | 2720 fps | 98.1% |
| Rottweil R 903 | <<locked>> | 82% | 48,269 psi | 85% | 2605 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 49,719 psi | 88% | 2651 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 94% | 49,922 psi | 88% | 2707 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 86% | 50,908 psi | 90% | 2644 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 49,356 psi | 87% | 2618 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 50,488 psi | 89% | 2657 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 49,458 psi | 87% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 49,400 psi | 87% | 2503 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 48,849 psi | 86% | 2572 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 49,472 psi | 87% | 2703 fps | 97.8% |
| Somchem S355 | <<locked>> | 82% | 48,298 psi | 85% | 2602 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,053 psi | 90% | 2644 fps | 95.9% |
| Somchem S365 | <<locked>> | 90% | 48,588 psi | 86% | 2684 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 50,647 psi | 90% | 2687 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 84% | 49,371 psi | 87% | 2582 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 51,184 psi | 90% | 2674 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 49,835 psi | 88% | 2664 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 88% | 50,415 psi | 89% | 2677 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 51,039 psi | 90% | 2740 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 50,415 psi | 89% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 49,255 psi | 87% | 2687 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,789 psi | 83% | 2822 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 50,372 psi | 89% | 2680 fps | 97.7% |
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>> | 84% | 32,256 psi | 57% | 2329 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 38,145 psi | 67% | 2474 fps | 98.7% |
| Accurate High Country | 48.7 gr | 92% | 45,643 psi | 81% | 2707 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 46,891 psi | 83% | 2569 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,989 psi | 74% | 2562 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 94% | 45,876 psi | 81% | 2664 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,703 psi | 84% | 2595 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,231 psi | 66% | 2484 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,076 psi | 74% | 2598 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,814 psi | 74% | 2559 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,363 psi | 70% | 2552 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,224 psi | 48% | 2251 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,953 psi | 58% | 2421 fps | 96.1% |
| Alliant Reloder-26 | 43.7 gr | 80% | 29,109 psi | 51% | 2356 fps | 95.1% |
| Bofors RP15 | <<locked>> | 94% | 41,379 psi | 73% | 2592 fps | 95.5% |
| Bofors RP5 | <<locked>> | 90% | 39,363 psi | 70% | 2552 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 42,235 psi | 75% | 2487 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 80% | 40,147 psi | 71% | 2520 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 43,120 psi | 76% | 2539 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,708 psi | 61% | 2379 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,769 psi | 69% | 2605 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 38,899 psi | 69% | 2526 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,340 psi | 48% | 1503 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,782 psi | 67% | 2418 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,410 psi | 77% | 2513 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 36,796 psi | 65% | 2431 fps | 98.5% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,848 psi | 85% | 2612 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 96% | 46,746 psi | 83% | 2694 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 40,973 psi | 72% | 2467 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 39,349 psi | 70% | 2451 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 33,359 psi | 59% | 2356 fps | 95.7% |
| Norma 204 | <<locked>> | 84% | 42,467 psi | 75% | 2552 fps | 95.6% |
| Norma MRP | 45.6 gr | 86% | 36,085 psi | 64% | 2507 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 37,985 psi | 67% | 2467 fps | 98.6% |
| Ramshot Grand | <<locked>> | 96% | 46,369 psi | 82% | 2697 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 36,666 psi | 65% | 2454 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 94% | 38,595 psi | 68% | 2523 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 49% | 1542 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,715 psi | 79% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,985 psi | 67% | 2493 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,811 psi | 65% | 2500 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,348 psi | 68% | 2595 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 45,252 psi | 80% | 2556 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,702 psi | 83% | 2602 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 40,727 psi | 72% | 2539 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 42,235 psi | 75% | 2487 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,973 psi | 72% | 2467 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 80% | 39,349 psi | 70% | 2451 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,137 psi | 82% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,325 psi | 82% | 2461 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,147 psi | 71% | 2415 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,350 psi | 71% | 2533 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 45,324 psi | 80% | 2552 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,688 psi | 84% | 2589 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 34,418 psi | 61% | 2428 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,405 psi | 64% | 2418 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 43,439 psi | 77% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,276 psi | 69% | 2464 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 38,232 psi | 68% | 2451 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 38,769 psi | 69% | 2467 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 30,081 psi | 53% | 2323 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,334 psi | 68% | 2438 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,147 psi | 71% | 2520 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,018 psi | 42% | 2218 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,741 psi | 72% | 2507 fps | 95.3% |
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 76 powders for 6.5 x 57 loaded with the .264 | 140gr | Speer IRB. Winchester StaBALL HD delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,822 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:10.0 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. Alliant Reloder-26, Accurate High Country, Norma MRP rank at the top here: for 6.5 x 57 with the .264 | 140gr | Speer IRB they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.