Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 123gr | Sierra MatchKing bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and SNPE Vectan SP 11.
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 2495 | <<locked>> | 86% | 40,437 psi | 86% | 2477 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 42,351 psi | 90% | 2526 fps | 99.6% |
| Accurate 4064 | <<locked>> | 88% | 40,901 psi | 87% | 2516 fps | 99.9% |
| Accurate 4350 | <<locked>> | 98% | 41,234 psi | 87% | 2582 fps | 96% |
| ADI AR 2206H | <<locked>> | 84% | 42,612 psi | 90% | 2533 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 88% | 40,872 psi | 87% | 2480 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 41,872 psi | 89% | 2490 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 82% | 41,176 psi | 87% | 2500 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 41,220 psi | 87% | 2598 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 42,656 psi | 90% | 2552 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 86% | 40,422 psi | 86% | 2510 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 42,163 psi | 89% | 2592 fps | 96.2% |
| Alliant Reloder-17 | <<locked>> | 94% | 42,366 psi | 90% | 2631 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,365 psi | 88% | 2526 fps | 96.1% |
| Bofors RP3 | <<locked>> | 90% | 42,221 psi | 90% | 2559 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 40,045 psi | 85% | 2507 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 82% | 40,045 psi | 85% | 2487 fps | 97.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,988 psi | 87% | 2539 fps | 97.6% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 40,901 psi | 87% | 2556 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,461 psi | 73% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 41,350 psi | 88% | 2497 fps | 97.8% |
| IMR 3031 | <<locked>> | 84% | 41,611 psi | 88% | 2543 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 40,437 psi | 86% | 2464 fps | 96.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 42,438 psi | 90% | 2585 fps | 96.4% |
| IMR 4895 | <<locked>> | 86% | 41,379 psi | 88% | 2539 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 82% | 41,872 psi | 89% | 2490 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 84% | 40,785 psi | 87% | 2510 fps | 99.5% |
| Lovex S060 | <<locked>> | 82% | 40,640 psi | 86% | 2425 fps | 97.1% |
| Lovex S062 | <<locked>> | 88% | 42,554 psi | 90% | 2520 fps | 98.7% |
| Norma 201 | <<locked>> | 84% | 41,655 psi | 88% | 2487 fps | 98.5% |
| Norma 202 | <<locked>> | 84% | 41,829 psi | 89% | 2503 fps | 99.8% |
| Norma 203B | <<locked>> | 88% | 42,569 psi | 90% | 2556 fps | 97.7% |
| Norma URP | <<locked>> | 98% | 42,119 psi | 89% | 2589 fps | 96% |
| Ramshot Big Game | <<locked>> | 88% | 42,206 psi | 90% | 2569 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 40,944 psi | 87% | 2510 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,983 psi | 74% | 1660 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 42,235 psi | 90% | 2612 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 42,279 psi | 90% | 2644 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 42,163 psi | 89% | 2490 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 92% | 42,119 psi | 89% | 2546 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 40,785 psi | 87% | 2510 fps | 99.5% |
| Shooters World Precision | <<locked>> | 88% | 42,554 psi | 90% | 2520 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 40,973 psi | 87% | 2549 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 41,031 psi | 87% | 2500 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 40,930 psi | 87% | 2408 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 40,466 psi | 86% | 2411 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 40,393 psi | 86% | 2415 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 42,177 psi | 89% | 2513 fps | 97.4% |
| Somchem S355 | <<locked>> | 90% | 40,553 psi | 86% | 2503 fps | 97.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,827 psi | 84% | 2585 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 82% | 41,017 psi | 87% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 40,959 psi | 87% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 42,134 psi | 89% | 2487 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 41,365 psi | 88% | 2493 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 82% | 42,119 psi | 89% | 2490 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 86% | 40,466 psi | 86% | 2474 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 42,467 psi | 90% | 2526 fps | 98% |
| Winchester 748 | <<locked>> | 82% | 41,031 psi | 87% | 2533 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 84% | 40,292 psi | 85% | 2503 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 2495 | <<locked>> | 80% | 33,431 psi | 71% | 2343 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 39,436 psi | 84% | 2474 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 31,604 psi | 67% | 2323 fps | 98.6% |
| Accurate 4350 | <<locked>> | 96% | 38,595 psi | 82% | 2530 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 37,463 psi | 79% | 2428 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 86% | 38,537 psi | 82% | 2434 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 39,450 psi | 84% | 2444 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 38,130 psi | 81% | 2448 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 38,508 psi | 82% | 2536 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,069 psi | 70% | 2356 fps | 95.9% |
| Alliant Reloder-15 | <<locked>> | 82% | 35,534 psi | 75% | 2405 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 96% | 39,726 psi | 84% | 2543 fps | 95.3% |
| Alliant Reloder-17 | 34 gr | 88% | 34,606 psi | 73% | 2457 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 38,653 psi | 82% | 2470 fps | 95.3% |
| Bofors RP3 | <<locked>> | 82% | 32,314 psi | 69% | 2349 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 37,362 psi | 79% | 2454 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 80% | 37,681 psi | 80% | 2438 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 33,881 psi | 72% | 2385 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,634 psi | 71% | 2398 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,512 psi | 54% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,347 psi | 77% | 2395 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 36,492 psi | 77% | 2448 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 35,810 psi | 76% | 2369 fps | 95.1% |
| IMR 4831 | <<locked>> | 98% | 39,900 psi | 85% | 2536 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 34,142 psi | 72% | 2388 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 80% | 39,450 psi | 84% | 2444 fps | 98% |
| Lovex D073.6 | <<locked>> | 80% | 35,708 psi | 76% | 2408 fps | 98.6% |
| Lovex S060 | <<locked>> | 80% | 38,319 psi | 81% | 2379 fps | 96.5% |
| Lovex S062 | <<locked>> | 80% | 33,141 psi | 70% | 2323 fps | 96.4% |
| Norma 201 | <<locked>> | 80% | 36,869 psi | 78% | 2392 fps | 97.5% |
| Norma 202 | <<locked>> | 80% | 36,666 psi | 78% | 2402 fps | 99.3% |
| Norma 203B | <<locked>> | 82% | 34,867 psi | 74% | 2395 fps | 95.4% |
| Norma URP | <<locked>> | 96% | 39,349 psi | 83% | 2530 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 84% | 36,854 psi | 78% | 2457 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 38,261 psi | 81% | 2454 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,744 psi | 55% | 1476 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 36,637 psi | 78% | 2493 fps | 95.3% |
| ReloadSwiss RS 60 | 31 gr | 80% | 28,747 psi | 61% | 2306 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 34,838 psi | 74% | 2339 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 84% | 32,227 psi | 68% | 2343 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,708 psi | 76% | 2408 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 33,141 psi | 70% | 2323 fps | 96.4% |
| SNPE Vectan SP 11 | 32.8 gr | 86% | 36,100 psi | 77% | 2448 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,114 psi | 77% | 2398 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,464 psi | 82% | 2362 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,546 psi | 67% | 2234 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 38,058 psi | 81% | 2369 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 37,086 psi | 79% | 2411 fps | 96% |
| Somchem S355 | <<locked>> | 84% | 33,518 psi | 71% | 2356 fps | 95.5% |
| Somchem S365 | <<locked>> | 92% | 30,835 psi | 65% | 2372 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 38,522 psi | 82% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 33,794 psi | 72% | 2343 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,766 psi | 74% | 2346 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 82% | 29,834 psi | 63% | 2251 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 39,218 psi | 83% | 2438 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 80% | 33,228 psi | 70% | 2326 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 34,867 psi | 74% | 2369 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 38,247 psi | 81% | 2477 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,085 psi | 74% | 2395 fps | 96.2% |
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 59 powders for 6.5 x 52 R K&S loaded with the .264 | 123gr | Sierra MatchKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,644 fps; across all powders the maximum-charge window runs from 1,617 fps to 2,644 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 123.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, IMR 4831 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. ReloadSwiss RS 60, Alliant Reloder-17, SNPE Vectan SP 11 rank at the top here: for 6.5 x 52 R K&S with the .264 | 123gr | 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.