Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 110gr | Lehigh Defense Controlled Chaos bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Bofors RP3.
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 2015 | <<locked>> | 84% | 42,656 psi | 90% | 2605 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 42,018 psi | 89% | 2651 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 41,481 psi | 88% | 2654 fps | 98.9% |
| Accurate 4064 | <<locked>> | 92% | 41,887 psi | 89% | 2680 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 41,771 psi | 89% | 2651 fps | 96.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 41,524 psi | 88% | 2618 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 84% | 39,668 psi | 84% | 2628 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 41,466 psi | 88% | 2667 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 41,510 psi | 88% | 2740 fps | 96.2% |
| Bofors RP3 | <<locked>> | 92% | 40,785 psi | 87% | 2667 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 40,988 psi | 87% | 2566 fps | 97.8% |
| Hodgdon BL-C2 | <<locked>> | 86% | 42,018 psi | 89% | 2684 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 86% | 42,003 psi | 89% | 2661 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 40,132 psi | 85% | 2674 fps | 96.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,924 psi | 72% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 40,611 psi | 86% | 2618 fps | 96.3% |
| IMR 3031 | <<locked>> | 86% | 40,437 psi | 86% | 2671 fps | 99.9% |
| IMR 4895 | <<locked>> | 88% | 40,292 psi | 85% | 2654 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 84% | 41,524 psi | 88% | 2618 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 88% | 42,395 psi | 90% | 2680 fps | 99% |
| Lovex S062 | <<locked>> | 90% | 41,597 psi | 88% | 2638 fps | 97.5% |
| Norma 201 | <<locked>> | 86% | 40,857 psi | 87% | 2608 fps | 97.3% |
| Norma 202 | <<locked>> | 86% | 40,901 psi | 87% | 2628 fps | 99.2% |
| Norma 203B | <<locked>> | 90% | 41,423 psi | 88% | 2667 fps | 96.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 42,438 psi | 90% | 2615 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,330 psi | 73% | 1752 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 41,495 psi | 88% | 2756 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 84% | 42,264 psi | 90% | 2618 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 88% | 41,336 psi | 88% | 2608 fps | 97.4% |
| Rottweil R 903 | <<locked>> | 94% | 40,683 psi | 86% | 2657 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 88% | 42,395 psi | 90% | 2680 fps | 99% |
| Shooters World Precision | <<locked>> | 90% | 41,597 psi | 88% | 2638 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 42,598 psi | 90% | 2713 fps | 96.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 40,582 psi | 86% | 2536 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 42,293 psi | 90% | 2582 fps | 99.8% |
| Somchem S321 | <<locked>> | 82% | 41,423 psi | 88% | 2641 fps | 97.7% |
| Somchem S335 | <<locked>> | 86% | 42,148 psi | 89% | 2582 fps | 99.7% |
| Somchem S341 | <<locked>> | 86% | 41,408 psi | 88% | 2631 fps | 95.9% |
| Somchem S355 | <<locked>> | 94% | 41,858 psi | 89% | 2664 fps | 96.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 36,201 psi | 77% | 2628 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 84% | 40,509 psi | 86% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 42,496 psi | 90% | 2651 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 41,205 psi | 87% | 2608 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 94% | 40,176 psi | 85% | 2605 fps | 97.7% |
| Vihtavuori N530 | <<locked>> | 84% | 41,336 psi | 88% | 2612 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 90% | 42,221 psi | 90% | 2644 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 41,727 psi | 89% | 2631 fps | 96.3% |
| Winchester 748 | <<locked>> | 84% | 39,900 psi | 85% | 2648 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 41,916 psi | 89% | 2671 fps | 96.8% |
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 2015 | <<locked>> | 80% | 37,710 psi | 80% | 2513 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 30,008 psi | 64% | 2402 fps | 99.1% |
| Accurate 2520 | <<locked>> | 80% | 36,013 psi | 76% | 2539 fps | 97.7% |
| Accurate 4064 | <<locked>> | 80% | 28,398 psi | 60% | 2372 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 84% | 39,349 psi | 83% | 2602 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 36,564 psi | 78% | 2516 fps | 96% |
| Alliant AR-Comp | <<locked>> | 80% | 34,795 psi | 74% | 2533 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 36,347 psi | 77% | 2562 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 38,827 psi | 82% | 2677 fps | 95.3% |
| Bofors RP3 | 33.1 gr | 88% | 35,694 psi | 76% | 2559 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 38,653 psi | 82% | 2520 fps | 97.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 34,171 psi | 72% | 2516 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 36,985 psi | 78% | 2556 fps | 95.3% |
| Hodgdon LEVERevolution | 32.6 gr | 84% | 35,128 psi | 75% | 2559 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,135 psi | 53% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 38,276 psi | 81% | 2569 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 33,344 psi | 71% | 2520 fps | 99.1% |
| IMR 4895 | <<locked>> | 86% | 37,956 psi | 81% | 2605 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 36,564 psi | 78% | 2516 fps | 96% |
| Lovex D073.6 | <<locked>> | 80% | 32,474 psi | 69% | 2470 fps | 96.6% |
| Lovex S062 | <<locked>> | 84% | 34,432 psi | 73% | 2484 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 33,823 psi | 72% | 2451 fps | 95.1% |
| Norma 202 | <<locked>> | 80% | 33,779 psi | 72% | 2474 fps | 97.7% |
| Norma 203B | <<locked>> | 88% | 38,696 psi | 82% | 2612 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 39,755 psi | 84% | 2559 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,280 psi | 54% | 1562 fps | 100% |
| ReloadSwiss RS 60 | 33.6 gr | 86% | 32,053 psi | 68% | 2516 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 37,521 psi | 80% | 2520 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 82% | 34,214 psi | 73% | 2454 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 90% | 35,578 psi | 75% | 2549 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 32,474 psi | 69% | 2470 fps | 96.6% |
| Shooters World Precision | <<locked>> | 84% | 34,432 psi | 73% | 2484 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 39,827 psi | 84% | 2654 fps | 95.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 35,853 psi | 76% | 2441 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,153 psi | 62% | 2300 fps | 97.2% |
| Somchem S321 | <<locked>> | 80% | 38,711 psi | 82% | 2585 fps | 97% |
| Somchem S335 | <<locked>> | 80% | 35,041 psi | 74% | 2438 fps | 98.7% |
| Somchem S341 | <<locked>> | 84% | 38,696 psi | 82% | 2575 fps | 95% |
| Somchem S355 | <<locked>> | 90% | 37,130 psi | 79% | 2566 fps | 95.3% |
| Somchem S365 | <<locked>> | 98% | 34,156 psi | 72% | 2575 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 35,795 psi | 76% | 2451 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 30,879 psi | 66% | 2411 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 31,705 psi | 67% | 2405 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 88% | 33,069 psi | 70% | 2454 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 36,274 psi | 77% | 2507 fps | 96% |
| Vihtavuori N540 | <<locked>> | 80% | 30,560 psi | 65% | 2392 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 39,073 psi | 83% | 2575 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 35,070 psi | 74% | 2543 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 36,854 psi | 78% | 2566 fps | 95.3% |
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 49 powders for 6.5 x 52 R K&S loaded with the .264 | 110gr | Lehigh Defense Controlled Chaos. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,756 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 49 of the 49 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 110.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Somchem S365 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, Hodgdon LEVERevolution, Bofors RP3 rank at the top here: for 6.5 x 52 R K&S with the .264 | 110gr | Lehigh Defense Controlled Chaos 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.