Load Specifications
Load data in caliber 6.5 x 55 Swedish with .264 | 140gr | Speer Grand Slam 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, Bofors RP5 and Winchester StaBALL HD.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 46,731 psi | 85% | 2615 fps | 99.1% |
| Accurate 4350 | <<locked>> | 88% | 48,921 psi | 89% | 2664 fps | 99.9% |
| Accurate High Country | <<locked>> | 94% | 47,456 psi | 86% | 2736 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 82% | 48,834 psi | 89% | 2592 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 46,760 psi | 85% | 2648 fps | 96.9% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 49,864 psi | 90% | 2700 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 49,647 psi | 90% | 2618 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 49,835 psi | 90% | 2720 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 46,992 psi | 85% | 2684 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 49,226 psi | 89% | 2690 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 49,705 psi | 90% | 2746 fps | 97.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 47,282 psi | 86% | 2690 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,743 psi | 79% | 2667 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 46,427 psi | 84% | 2753 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,979 psi | 89% | 2730 fps | 97.5% |
| Bofors RP5 | <<locked>> | 98% | 49,705 psi | 90% | 2746 fps | 97.8% |
| Bofors RP7 | <<locked>> | 86% | 49,690 psi | 90% | 2615 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 86% | 47,732 psi | 87% | 2657 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 84% | 47,950 psi | 87% | 2621 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 46,847 psi | 85% | 2602 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,018 psi | 78% | 2697 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 86% | 47,079 psi | 85% | 2684 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 66% | 1670 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 47,355 psi | 86% | 2595 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 84% | 48,196 psi | 87% | 2592 fps | 98.5% |
| IMR 4831 | <<locked>> | 90% | 49,603 psi | 90% | 2661 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,719 psi | 90% | 2638 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 98% | 48,486 psi | 88% | 2720 fps | 96% |
| Lovex S065 | <<locked>> | 86% | 48,414 psi | 88% | 2595 fps | 99.4% |
| Lovex S070 | <<locked>> | 88% | 49,298 psi | 89% | 2631 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,556 psi | 81% | 2579 fps | 98.7% |
| Norma 204 | <<locked>> | 88% | 47,558 psi | 86% | 2638 fps | 96.9% |
| Norma MRP | <<locked>> | 96% | 49,356 psi | 90% | 2772 fps | 98.9% |
| Norma URP | <<locked>> | 88% | 48,008 psi | 87% | 2651 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 48,617 psi | 88% | 2730 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 88% | 46,746 psi | 85% | 2648 fps | 99% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,412 psi | 84% | 2671 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,159 psi | 67% | 1709 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 46,702 psi | 85% | 2677 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 48,762 psi | 88% | 2687 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 47,137 psi | 86% | 2703 fps | 99.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,612 psi | 77% | 2687 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 82% | 47,123 psi | 86% | 2582 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,414 psi | 88% | 2621 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 94% | 48,544 psi | 88% | 2677 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 86% | 49,690 psi | 90% | 2615 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 48,414 psi | 88% | 2595 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 88% | 49,298 psi | 89% | 2631 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 48,153 psi | 87% | 2631 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 48,225 psi | 88% | 2480 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 47,747 psi | 87% | 2546 fps | 98.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 48,109 psi | 87% | 2674 fps | 97.4% |
| Somchem S355 | <<locked>> | 82% | 47,456 psi | 86% | 2582 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 46,978 psi | 85% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 49,037 psi | 89% | 2654 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 84% | 48,356 psi | 88% | 2559 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 46,760 psi | 85% | 2595 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 98% | 48,385 psi | 88% | 2635 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 88% | 48,979 psi | 89% | 2651 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 49,545 psi | 90% | 2713 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 49,763 psi | 90% | 2759 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 49,226 psi | 89% | 2618 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 47,732 psi | 87% | 2657 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,455 psi | 82% | 2795 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,863 psi | 89% | 2648 fps | 97.3% |
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% | 33,388 psi | 61% | 2352 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 37,072 psi | 67% | 2448 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 44,324 psi | 80% | 2680 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,093 psi | 84% | 2549 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,973 psi | 74% | 2536 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,263 psi | 75% | 2539 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,543 psi | 84% | 2572 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,216 psi | 66% | 2457 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,089 psi | 75% | 2579 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,799 psi | 74% | 2533 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,741 psi | 74% | 2575 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,629 psi | 48% | 2228 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,966 psi | 58% | 2392 fps | 95.6% |
| Alliant Reloder-26 | 43.4 gr | 82% | 30,342 psi | 55% | 2388 fps | 95.8% |
| Bofors RP15 | <<locked>> | 94% | 40,205 psi | 73% | 2562 fps | 95.1% |
| Bofors RP5 | 45.7 gr | 92% | 40,741 psi | 74% | 2575 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 41,234 psi | 75% | 2461 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 80% | 39,175 psi | 71% | 2493 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 42,134 psi | 76% | 2513 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,910 psi | 62% | 2359 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,321 psi | 73% | 2638 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 37,913 psi | 69% | 2500 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 50% | 1493 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,869 psi | 67% | 2392 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,714 psi | 78% | 2490 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 35,795 psi | 65% | 2405 fps | 98.3% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,673 psi | 85% | 2585 fps | 95% |
| IMR 7828 SSC | <<locked>> | 96% | 45,339 psi | 82% | 2657 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 40,219 psi | 73% | 2444 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,392 psi | 70% | 2425 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,474 psi | 59% | 2333 fps | 95.4% |
| Norma 204 | <<locked>> | 84% | 41,640 psi | 76% | 2530 fps | 95.3% |
| Norma MRP | <<locked>> | 88% | 37,550 psi | 68% | 2536 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 36,956 psi | 67% | 2441 fps | 98.4% |
| Ramshot Grand | <<locked>> | 96% | 45,353 psi | 82% | 2671 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 35,766 psi | 65% | 2428 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 96% | 40,118 psi | 73% | 2549 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,717 psi | 50% | 1526 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,671 psi | 79% | 2628 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,782 psi | 67% | 2464 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,795 psi | 65% | 2470 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,130 psi | 67% | 2556 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 44,092 psi | 80% | 2530 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,339 psi | 82% | 2569 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 39,929 psi | 72% | 2516 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 41,234 psi | 75% | 2461 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,219 psi | 73% | 2444 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 80% | 38,392 psi | 70% | 2425 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,107 psi | 82% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,440 psi | 82% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,276 psi | 71% | 2388 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,552 psi | 72% | 2513 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 44,483 psi | 81% | 2530 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,388 psi | 61% | 2402 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,985 psi | 69% | 2448 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 42,366 psi | 77% | 2464 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,247 psi | 69% | 2441 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 39,581 psi | 72% | 2477 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 37,826 psi | 69% | 2444 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,269 psi | 53% | 2303 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 46,325 psi | 84% | 2697 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,362 psi | 68% | 2411 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,175 psi | 71% | 2493 fps | 96.6% |
| Winchester StaBALL HD | 41.6 gr | 82% | 24,947 psi | 45% | 2254 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,627 psi | 77% | 2539 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 65 powders for 6.5 x 55 Swedish loaded with the .264 | 140gr | Speer Grand Slam. Winchester StaBALL HD delivers the highest muzzle velocity at 2,795 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,795 fps. Alliant Reloder-25 gives the best case fill at 100 %, and 65 of the 65 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-25, Bofors RP15, Hodgdon Retumbo 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, Bofors RP5, Winchester StaBALL HD rank at the top here: for 6.5 x 55 Swedish with the .264 | 140gr | Speer Grand Slam 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.