Load Specifications
Load data in caliber 6.5 x 55 Swedish with .264 | 144gr | Sierra MatchKing 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, 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% | 49,139 psi | 89% | 2608 fps | 99.4% |
| Accurate 4350 | <<locked>> | 88% | 47,790 psi | 87% | 2602 fps | 99.9% |
| Accurate High Country | <<locked>> | 94% | 46,485 psi | 84% | 2677 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 82% | 48,428 psi | 88% | 2539 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 48,878 psi | 89% | 2638 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 49,124 psi | 89% | 2641 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 48,936 psi | 89% | 2562 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 49,110 psi | 89% | 2661 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 49,647 psi | 90% | 2680 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 48,486 psi | 88% | 2631 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 48,878 psi | 89% | 2687 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,255 psi | 89% | 2677 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,033 psi | 78% | 2608 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 48,602 psi | 88% | 2746 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,790 psi | 87% | 2664 fps | 97.4% |
| Bofors RP3 | <<locked>> | 82% | 49,168 psi | 89% | 2572 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 48,878 psi | 89% | 2687 fps | 97.7% |
| Bofors RP7 | <<locked>> | 86% | 48,921 psi | 89% | 2556 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 82% | 49,501 psi | 90% | 2585 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 86% | 47,036 psi | 85% | 2602 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 84% | 47,166 psi | 86% | 2562 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 49,095 psi | 89% | 2592 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,090 psi | 76% | 2635 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 88% | 49,705 psi | 90% | 2680 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 66% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 46,717 psi | 85% | 2543 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 84% | 47,659 psi | 86% | 2536 fps | 98.5% |
| IMR 4831 | <<locked>> | 90% | 48,573 psi | 88% | 2598 fps | 100% |
| Lovex S065 | <<locked>> | 86% | 47,630 psi | 86% | 2536 fps | 99.4% |
| Lovex S070 | <<locked>> | 88% | 48,631 psi | 88% | 2572 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,801 psi | 79% | 2523 fps | 98.7% |
| Norma 204 | <<locked>> | 88% | 46,702 psi | 85% | 2579 fps | 96.8% |
| Norma MRP | <<locked>> | 96% | 48,167 psi | 87% | 2707 fps | 98.8% |
| Norma URP | <<locked>> | 88% | 47,210 psi | 86% | 2592 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 47,587 psi | 86% | 2667 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 90% | 49,110 psi | 89% | 2641 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,252 psi | 82% | 2605 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,217 psi | 68% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 49,748 psi | 90% | 2572 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,182 psi | 89% | 2671 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 47,514 psi | 86% | 2621 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 49,690 psi | 90% | 2700 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,713 psi | 76% | 2625 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 84% | 49,356 psi | 90% | 2572 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 47,587 psi | 86% | 2566 fps | 96% |
| Rottweil R 905 | <<locked>> | 94% | 47,413 psi | 86% | 2615 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 86% | 48,921 psi | 89% | 2556 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 47,630 psi | 86% | 2536 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 88% | 48,631 psi | 88% | 2572 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 47,601 psi | 86% | 2579 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 47,732 psi | 87% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 47,007 psi | 85% | 2490 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 46,978 psi | 85% | 2608 fps | 97.3% |
| Somchem S355 | <<locked>> | 84% | 49,647 psi | 90% | 2569 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 49,298 psi | 89% | 2648 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 48,341 psi | 88% | 2602 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 84% | 47,442 psi | 86% | 2500 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 48,907 psi | 89% | 2585 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 98% | 47,514 psi | 86% | 2575 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 88% | 48,414 psi | 88% | 2595 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 96% | 48,370 psi | 88% | 2648 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 48,254 psi | 88% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 47,036 psi | 85% | 2602 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,527 psi | 81% | 2733 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 48,022 psi | 87% | 2589 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% | 32,721 psi | 59% | 2303 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 36,593 psi | 66% | 2395 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 43,294 psi | 79% | 2618 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 45,310 psi | 82% | 2490 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,393 psi | 73% | 2477 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 40,379 psi | 73% | 2480 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,730 psi | 83% | 2513 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,781 psi | 65% | 2405 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,263 psi | 73% | 2520 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 39,943 psi | 72% | 2474 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,074 psi | 73% | 2520 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,092 psi | 47% | 2178 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,531 psi | 57% | 2343 fps | 95.5% |
| Alliant Reloder-26 | 41.7 gr | 82% | 29,631 psi | 54% | 2333 fps | 95.6% |
| Bofors RP15 | <<locked>> | 94% | 39,537 psi | 72% | 2507 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,209 psi | 84% | 2526 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,074 psi | 73% | 2520 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,799 psi | 74% | 2411 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 46,543 psi | 84% | 2536 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 38,319 psi | 70% | 2434 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 41,524 psi | 75% | 2457 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,185 psi | 60% | 2303 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 39,407 psi | 72% | 2572 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 37,391 psi | 68% | 2444 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 50% | 1457 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 36,492 psi | 66% | 2343 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,076 psi | 76% | 2434 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 35,128 psi | 64% | 2352 fps | 98.2% |
| Lovex S065 | <<locked>> | 80% | 39,523 psi | 72% | 2388 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 37,753 psi | 69% | 2369 fps | 96.5% |
| Lovex S071 | <<locked>> | 90% | 31,807 psi | 58% | 2280 fps | 95.3% |
| Norma 204 | <<locked>> | 84% | 40,712 psi | 74% | 2467 fps | 95.2% |
| Norma MRP | 43.5 gr | 88% | 36,840 psi | 67% | 2480 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 36,245 psi | 66% | 2388 fps | 98.3% |
| Ramshot Grand | <<locked>> | 96% | 44,309 psi | 80% | 2605 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,230 psi | 64% | 2379 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 96% | 39,508 psi | 72% | 2497 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 50% | 1490 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,557 psi | 84% | 2520 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 42,815 psi | 78% | 2569 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,216 psi | 66% | 2411 fps | 98.1% |
| ReloadSwiss RS 70 | 40.3 gr | 80% | 35,157 psi | 64% | 2415 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,434 psi | 66% | 2500 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 43,279 psi | 79% | 2474 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 44,773 psi | 81% | 2516 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 38,957 psi | 71% | 2457 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 40,799 psi | 74% | 2411 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,523 psi | 72% | 2388 fps | 98% |
| Shooters World SW4350 | <<locked>> | 80% | 37,753 psi | 69% | 2369 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,498 psi | 81% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,846 psi | 81% | 2385 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,682 psi | 70% | 2336 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,394 psi | 75% | 2507 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 43,700 psi | 79% | 2474 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 32,953 psi | 60% | 2352 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,101 psi | 67% | 2392 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 41,684 psi | 76% | 2408 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,884 psi | 69% | 2392 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 38,899 psi | 71% | 2421 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 37,231 psi | 68% | 2392 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 28,616 psi | 52% | 2247 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,767 psi | 67% | 2359 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,595 psi | 70% | 2441 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,627 psi | 45% | 2208 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 92% | 41,684 psi | 76% | 2480 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 65 powders for 6.5 x 55 Swedish loaded with the .264 | 144gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,746 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,746 fps. Alliant Reloder-23 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 144.0 gr projectile in 0.264" calls for a 1:9.0 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 55 Swedish with the .264 | 144gr | 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.