Load Specifications
Load data in caliber 6.5 x 55 Swedish with .264 | 140gr | Sierra GameKing bullet and 62 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 98% | 49,487 psi | 90% | 2657 fps | 99.4% |
| Accurate 4350 | <<locked>> | 88% | 48,240 psi | 88% | 2654 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 82% | 48,515 psi | 88% | 2589 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 49,400 psi | 90% | 2690 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 49,327 psi | 90% | 2615 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 49,516 psi | 90% | 2713 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 46,702 psi | 85% | 2677 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 48,979 psi | 89% | 2684 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 98% | 49,501 psi | 90% | 2740 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,647 psi | 90% | 2726 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,294 psi | 79% | 2657 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 49,501 psi | 90% | 2805 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,457 psi | 88% | 2720 fps | 97.4% |
| Bofors RP3 | <<locked>> | 82% | 49,763 psi | 90% | 2628 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 49,501 psi | 90% | 2740 fps | 97.7% |
| Bofors RP7 | <<locked>> | 86% | 49,429 psi | 90% | 2612 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 86% | 47,471 psi | 86% | 2651 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 84% | 47,355 psi | 86% | 2608 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 49,501 psi | 90% | 2641 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,569 psi | 77% | 2687 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 86% | 46,543 psi | 84% | 2671 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 66% | 1663 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 47,108 psi | 85% | 2592 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 47,921 psi | 87% | 2585 fps | 98.4% |
| IMR 4831 | <<locked>> | 90% | 48,965 psi | 89% | 2651 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 98% | 47,993 psi | 87% | 2707 fps | 95.8% |
| Lovex S065 | <<locked>> | 86% | 48,153 psi | 87% | 2589 fps | 99.4% |
| Lovex S070 | <<locked>> | 88% | 49,023 psi | 89% | 2625 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,266 psi | 80% | 2572 fps | 98.7% |
| Norma 204 | <<locked>> | 88% | 47,282 psi | 86% | 2635 fps | 96.8% |
| Norma MRP | <<locked>> | 96% | 48,762 psi | 88% | 2759 fps | 98.8% |
| Norma URP | <<locked>> | 88% | 47,688 psi | 87% | 2644 fps | 99.8% |
| Ramshot Grand | <<locked>> | 98% | 48,080 psi | 87% | 2720 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 90% | 49,632 psi | 90% | 2694 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,948 psi | 83% | 2661 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,202 psi | 68% | 1709 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,647 psi | 90% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 48,153 psi | 87% | 2677 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 46,891 psi | 85% | 2697 fps | 99.7% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,235 psi | 77% | 2677 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 46,789 psi | 85% | 2575 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,167 psi | 87% | 2618 fps | 96% |
| Rottweil R 905 | <<locked>> | 94% | 47,950 psi | 87% | 2667 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 86% | 49,429 psi | 90% | 2612 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 48,153 psi | 87% | 2589 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 88% | 49,023 psi | 89% | 2625 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 47,819 psi | 87% | 2625 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 47,892 psi | 87% | 2477 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 47,471 psi | 86% | 2539 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 47,514 psi | 86% | 2661 fps | 97.3% |
| Somchem S355 | <<locked>> | 82% | 47,123 psi | 86% | 2575 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 46,615 psi | 85% | 2651 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 48,805 psi | 89% | 2651 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 84% | 48,037 psi | 87% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 49,313 psi | 89% | 2638 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 98% | 47,848 psi | 87% | 2625 fps | 97.7% |
| Vihtavuori N550 | <<locked>> | 88% | 48,733 psi | 88% | 2644 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 96% | 48,936 psi | 89% | 2703 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 48,689 psi | 88% | 2608 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 47,471 psi | 86% | 2651 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,933 psi | 82% | 2785 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,341 psi | 88% | 2638 fps | 97.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 33,141 psi | 60% | 2346 fps | 95.6% |
| Accurate 4350 | <<locked>> | 80% | 36,738 psi | 67% | 2438 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 45,759 psi | 83% | 2543 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,741 psi | 74% | 2526 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,209 psi | 84% | 2566 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,911 psi | 65% | 2448 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,785 psi | 74% | 2569 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,277 psi | 73% | 2520 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,509 psi | 74% | 2569 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,397 psi | 48% | 2221 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,763 psi | 58% | 2385 fps | 95.4% |
| Alliant Reloder-26 | 43 gr | 82% | 29,936 psi | 54% | 2375 fps | 95.5% |
| Bofors RP15 | <<locked>> | 94% | 39,972 psi | 73% | 2556 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,601 psi | 85% | 2579 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,509 psi | 74% | 2569 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 40,930 psi | 74% | 2454 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,899 psi | 71% | 2487 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 41,843 psi | 76% | 2507 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,591 psi | 61% | 2352 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,900 psi | 72% | 2625 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 37,710 psi | 68% | 2493 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 50% | 1490 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,593 psi | 66% | 2385 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,424 psi | 77% | 2484 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 35,491 psi | 64% | 2398 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 45,165 psi | 82% | 2654 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 39,943 psi | 72% | 2438 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 38,101 psi | 69% | 2418 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 32,024 psi | 58% | 2320 fps | 95.1% |
| Norma 204 | <<locked>> | 84% | 41,075 psi | 75% | 2516 fps | 95.1% |
| Norma MRP | 44.8 gr | 88% | 37,057 psi | 67% | 2523 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 36,637 psi | 66% | 2434 fps | 98.3% |
| Ramshot Grand | <<locked>> | 96% | 44,846 psi | 81% | 2657 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,476 psi | 64% | 2421 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 96% | 39,943 psi | 72% | 2546 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 50% | 1522 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,323 psi | 79% | 2621 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,463 psi | 66% | 2457 fps | 98.1% |
| ReloadSwiss RS 70 | 41.6 gr | 80% | 35,578 psi | 65% | 2464 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,796 psi | 67% | 2546 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 43,743 psi | 79% | 2523 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,078 psi | 82% | 2562 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 39,349 psi | 71% | 2503 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 40,930 psi | 74% | 2454 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,943 psi | 72% | 2438 fps | 98% |
| Shooters World SW4350 | <<locked>> | 80% | 38,101 psi | 69% | 2418 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,802 psi | 81% | 2575 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,092 psi | 82% | 2434 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,001 psi | 71% | 2382 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,742 psi | 76% | 2556 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 44,135 psi | 80% | 2523 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,083 psi | 60% | 2395 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 37,478 psi | 68% | 2438 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 42,047 psi | 76% | 2457 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,942 psi | 69% | 2431 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 39,349 psi | 71% | 2470 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 37,550 psi | 68% | 2438 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 28,993 psi | 53% | 2293 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,130 psi | 67% | 2405 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,899 psi | 71% | 2487 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,772 psi | 45% | 2247 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,105 psi | 76% | 2526 fps | 95.6% |
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 75 powders for 6.5 x 55 Swedish loaded with the .264 | 140gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,805 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,805 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 63–90 %, 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-23 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 55 Swedish with the .264 | 140gr | Sierra GameKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2217, ADI AR 2225 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.