Load Specifications
Load data in caliber 6.5 x 55 Swedish with .264 | 139gr | Norma HP bullet and 64 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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 84% | 49,110 psi | 89% | 2562 fps | 97.9% |
| Accurate 3100 | <<locked>> | 98% | 48,356 psi | 88% | 2646 fps | 99.1% |
| Accurate 4350 | <<locked>> | 88% | 47,326 psi | 86% | 2644 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 82% | 48,008 psi | 87% | 2582 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 94% | 48,718 psi | 88% | 2683 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 48,443 psi | 88% | 2604 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 48,385 psi | 88% | 2698 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 49,095 psi | 89% | 2721 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 47,950 psi | 87% | 2670 fps | 97% |
| Alliant Reloder-22 | <<locked>> | 98% | 48,109 psi | 87% | 2719 fps | 97.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,733 psi | 88% | 2714 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,627 psi | 77% | 2642 fps | 98.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 47,993 psi | 87% | 2784 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,413 psi | 86% | 2707 fps | 97% |
| Bofors RP3 | <<locked>> | 82% | 48,892 psi | 89% | 2618 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 48,109 psi | 87% | 2720 fps | 97.3% |
| Bofors RP7 | <<locked>> | 86% | 48,675 psi | 88% | 2600 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 49,226 psi | 89% | 2630 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 47,253 psi | 86% | 2653 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 88% | 48,457 psi | 88% | 2631 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 48,617 psi | 88% | 2633 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 49,023 psi | 89% | 2717 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,159 psi | 67% | 1663 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 49,850 psi | 90% | 2602 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,182 psi | 89% | 2584 fps | 98.5% |
| IMR 4350 | <<locked>> | 90% | 49,168 psi | 89% | 2628 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 47,195 psi | 86% | 2575 fps | 98.1% |
| IMR 4831 | <<locked>> | 94% | 49,124 psi | 89% | 2656 fps | 99.9% |
| Lovex S065 | <<locked>> | 86% | 47,050 psi | 85% | 2574 fps | 99.1% |
| Lovex S070 | <<locked>> | 88% | 48,283 psi | 88% | 2615 fps | 98.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,976 psi | 80% | 2559 fps | 98.3% |
| Norma 204 | <<locked>> | 90% | 49,472 psi | 90% | 2673 fps | 97.1% |
| Norma MRP | <<locked>> | 96% | 47,703 psi | 87% | 2744 fps | 98.4% |
| Norma URP | <<locked>> | 90% | 49,777 psi | 90% | 2684 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 90% | 48,544 psi | 88% | 2680 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 98% | 46,644 psi | 85% | 2676 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,637 psi | 68% | 1708 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 49,168 psi | 89% | 2612 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 48,733 psi | 88% | 2716 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 46,949 psi | 85% | 2662 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 49,081 psi | 89% | 2739 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,611 psi | 76% | 2659 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 48,791 psi | 89% | 2612 fps | 100% |
| Rottweil R 905 | <<locked>> | 94% | 47,181 psi | 86% | 2657 fps | 97% |
| Rottweil R 907 | <<locked>> | 86% | 48,675 psi | 88% | 2600 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 86% | 47,050 psi | 85% | 2574 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 88% | 48,283 psi | 88% | 2615 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 46,978 psi | 85% | 2617 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 47,355 psi | 86% | 2473 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 49,632 psi | 90% | 2577 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 49,748 psi | 90% | 2703 fps | 97.6% |
| Somchem S355 | <<locked>> | 84% | 49,139 psi | 89% | 2611 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 48,704 psi | 88% | 2688 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 47,776 psi | 87% | 2638 fps | 97.9% |
| Unknown powder | <<locked>> | 86% | 47,065 psi | 85% | 2632 fps | 99.5% |
| Vihtavuori N150 | <<locked>> | 88% | 47,543 psi | 86% | 2554 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 47,427 psi | 86% | 2608 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,559 psi | 88% | 2636 fps | 97.6% |
| Vihtavuori N550 | <<locked>> | 86% | 47,776 psi | 87% | 2649 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 96% | 48,037 psi | 87% | 2692 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 47,688 psi | 87% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 47,253 psi | 86% | 2653 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,483 psi | 81% | 2773 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 48,994 psi | 89% | 2652 fps | 97.1% |
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 2700 | <<locked>> | 80% | 43,149 psi | 78% | 2461 fps | 96.6% |
| Accurate 3100 | <<locked>> | 86% | 32,198 psi | 58% | 2330 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 36,158 psi | 66% | 2431 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 44,962 psi | 82% | 2531 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 42,554 psi | 77% | 2567 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,324 psi | 82% | 2554 fps | 100% |
| Alliant Reloder-16 | 37.6 gr | 80% | 35,462 psi | 64% | 2441 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,740 psi | 72% | 2555 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,293 psi | 77% | 2564 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 42,293 psi | 77% | 2611 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,817 psi | 47% | 2206 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,098 psi | 60% | 2424 fps | 95.8% |
| Alliant Reloder-26 | 43.5 gr | 84% | 31,372 psi | 57% | 2422 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 41,713 psi | 76% | 2598 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 45,701 psi | 83% | 2568 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 42,293 psi | 77% | 2612 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 40,205 psi | 73% | 2442 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 46,035 psi | 84% | 2575 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 41,350 psi | 75% | 2542 fps | 97% |
| Hodgdon H4350 | <<locked>> | 82% | 40,292 psi | 73% | 2477 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,837 psi | 60% | 2338 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 80% | 36,825 psi | 67% | 2476 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,166 psi | 49% | 1487 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,208 psi | 80% | 2510 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,439 psi | 79% | 2481 fps | 97.4% |
| IMR 4350 | <<locked>> | 82% | 38,377 psi | 70% | 2425 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,742 psi | 76% | 2474 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 31,517 psi | 57% | 2308 fps | 96.7% |
| Lovex S065 | <<locked>> | 80% | 39,218 psi | 71% | 2426 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 37,391 psi | 68% | 2407 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 33,344 psi | 61% | 2357 fps | 95.5% |
| Norma 204 | <<locked>> | 86% | 43,221 psi | 78% | 2562 fps | 95.6% |
| Norma MRP | 44.3 gr | 88% | 36,405 psi | 66% | 2513 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 35,882 psi | 65% | 2423 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 80% | 34,795 psi | 63% | 2409 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 94% | 40,205 psi | 73% | 2553 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 50% | 1520 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,064 psi | 84% | 2559 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,235 psi | 77% | 2607 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,708 psi | 65% | 2444 fps | 97.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 34,925 psi | 63% | 2451 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 38,522 psi | 70% | 2590 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 42,873 psi | 78% | 2513 fps | 100% |
| Rottweil R 905 | <<locked>> | 90% | 41,089 psi | 75% | 2544 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 40,205 psi | 73% | 2442 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,218 psi | 71% | 2426 fps | 97.6% |
| Shooters World SW4350 | <<locked>> | 80% | 37,391 psi | 68% | 2408 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,947 psi | 80% | 2564 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,599 psi | 81% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,290 psi | 69% | 2372 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 40,698 psi | 74% | 2536 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 43,323 psi | 79% | 2513 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 32,329 psi | 59% | 2382 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 39,334 psi | 71% | 2481 fps | 95.8% |
| Unknown powder | <<locked>> | 80% | 38,914 psi | 71% | 2479 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 37,246 psi | 68% | 2374 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 38,986 psi | 71% | 2454 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 94% | 39,769 psi | 72% | 2481 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 39,407 psi | 72% | 2493 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 28,253 psi | 51% | 2279 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,521 psi | 66% | 2397 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 41,350 psi | 75% | 2542 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,279 psi | 44% | 2227 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,351 psi | 77% | 2535 fps | 95.4% |
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 80 powders for 6.5 x 55 Swedish loaded with the .264 | 139gr | Norma HP. Alliant Reloder-26 delivers the highest muzzle velocity at 2,784 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,784 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 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 139.0 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. Norma MRP, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for 6.5 x 55 Swedish with the .264 | 139gr | Norma HP 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.