Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 105gr | Lehigh Defense Match Solid bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, IMR 3031 and Lovex D073.6.
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% | 41,205 psi | 87% | 2641 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 42,134 psi | 89% | 2687 fps | 98.9% |
| Accurate 2495 | <<locked>> | 90% | 40,205 psi | 85% | 2684 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 41,031 psi | 87% | 2713 fps | 98.4% |
| Accurate 4064 | <<locked>> | 94% | 42,656 psi | 90% | 2756 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 42,554 psi | 90% | 2700 fps | 97.1% |
| Alliant AR-Comp | <<locked>> | 86% | 40,959 psi | 87% | 2717 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 42,221 psi | 90% | 2743 fps | 96.8% |
| Bofors RP3 | <<locked>> | 94% | 41,930 psi | 89% | 2749 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 42,482 psi | 90% | 2654 fps | 97.7% |
| Hodgdon BL-C2 | <<locked>> | 86% | 40,350 psi | 86% | 2710 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 84% | 42,380 psi | 90% | 2713 fps | 99.6% |
| Hodgdon H4895 | <<locked>> | 86% | 40,509 psi | 86% | 2690 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 41,336 psi | 88% | 2756 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,895 psi | 72% | 1749 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 40,915 psi | 87% | 2680 fps | 95.8% |
| IMR 3031 | <<locked>> | 90% | 40,248 psi | 85% | 2730 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 42,554 psi | 90% | 2700 fps | 97.1% |
| Lovex D073.5 | <<locked>> | 82% | 41,945 psi | 89% | 2684 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 88% | 41,031 psi | 87% | 2713 fps | 98.4% |
| Lovex S062 | <<locked>> | 92% | 42,496 psi | 90% | 2713 fps | 97.3% |
| Norma 201 | <<locked>> | 88% | 42,221 psi | 90% | 2694 fps | 97.1% |
| Norma 202 | <<locked>> | 88% | 41,872 psi | 89% | 2707 fps | 99.1% |
| Norma 203B | <<locked>> | 92% | 42,627 psi | 90% | 2749 fps | 95.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,895 psi | 72% | 1788 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 42,221 psi | 90% | 2690 fps | 98.3% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 39,929 psi | 85% | 2772 fps | 97.7% |
| Rottweil R 901 | <<locked>> | 84% | 40,843 psi | 87% | 2648 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 90% | 42,308 psi | 90% | 2687 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 96% | 41,829 psi | 89% | 2736 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 41,031 psi | 87% | 2713 fps | 98.4% |
| Shooters World Precision | <<locked>> | 92% | 42,496 psi | 90% | 2713 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 41,742 psi | 89% | 2618 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 40,843 psi | 87% | 2615 fps | 99.5% |
| Somchem S321 | <<locked>> | 82% | 40,292 psi | 85% | 2674 fps | 96.9% |
| Somchem S335 | <<locked>> | 86% | 40,785 psi | 87% | 2615 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 82% | 41,959 psi | 89% | 2612 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 41,597 psi | 88% | 2621 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 40,799 psi | 87% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 42,177 psi | 89% | 2687 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 96% | 41,394 psi | 88% | 2687 fps | 97.5% |
| Vihtavuori N530 | <<locked>> | 84% | 39,914 psi | 85% | 2641 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 90% | 40,625 psi | 86% | 2674 fps | 98.7% |
| Winchester 748 | <<locked>> | 84% | 41,872 psi | 89% | 2746 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,698 psi | 88% | 2723 fps | 96.2% |
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% | 36,419 psi | 77% | 2543 fps | 99.6% |
| Accurate 2460 | <<locked>> | 80% | 39,305 psi | 83% | 2628 fps | 98.4% |
| Accurate 2495 | <<locked>> | 80% | 28,703 psi | 61% | 2421 fps | 98.4% |
| Accurate 2520 | <<locked>> | 80% | 33,141 psi | 70% | 2543 fps | 96.3% |
| Accurate 4064 | <<locked>> | 80% | 27,209 psi | 58% | 2392 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 37,536 psi | 80% | 2592 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 33,489 psi | 71% | 2562 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 37,405 psi | 79% | 2641 fps | 95.3% |
| Bofors RP3 | <<locked>> | 90% | 36,666 psi | 78% | 2638 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 37,521 psi | 80% | 2546 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 35,157 psi | 75% | 2595 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 37,043 psi | 79% | 2602 fps | 98.9% |
| Hodgdon H4895 | <<locked>> | 84% | 38,189 psi | 81% | 2638 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 38,624 psi | 82% | 2697 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,150 psi | 53% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 38,537 psi | 82% | 2628 fps | 95.1% |
| IMR 3031 | 27.9 gr | 80% | 29,269 psi | 62% | 2467 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 82% | 37,536 psi | 80% | 2592 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 80% | 39,160 psi | 83% | 2628 fps | 97.3% |
| Lovex D073.6 | 30.8 gr | 80% | 31,125 psi | 66% | 2490 fps | 95.5% |
| Lovex S062 | <<locked>> | 86% | 35,244 psi | 75% | 2556 fps | 95.1% |
| Norma 201 | <<locked>> | 84% | 37,144 psi | 79% | 2585 fps | 95.7% |
| Norma 202 | <<locked>> | 80% | 32,532 psi | 69% | 2500 fps | 96.8% |
| Norma 203B | <<locked>> | 90% | 39,856 psi | 85% | 2694 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,266 psi | 54% | 1601 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 39,798 psi | 84% | 2641 fps | 97.8% |
| ReloadSwiss RS 60 | 35.3 gr | 90% | 35,302 psi | 75% | 2654 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 36,274 psi | 77% | 2549 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 86% | 37,565 psi | 80% | 2585 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 94% | 38,957 psi | 83% | 2677 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 31,125 psi | 66% | 2490 fps | 95.5% |
| Shooters World Precision | <<locked>> | 86% | 35,244 psi | 75% | 2556 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 34,722 psi | 74% | 2470 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 28,137 psi | 60% | 2326 fps | 96.3% |
| Somchem S321 | <<locked>> | 80% | 37,637 psi | 80% | 2618 fps | 96.1% |
| Somchem S335 | <<locked>> | 80% | 33,866 psi | 72% | 2467 fps | 98% |
| Vihtavuori N130 | <<locked>> | 80% | 39,436 psi | 84% | 2566 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 34,606 psi | 73% | 2480 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 80% | 29,631 psi | 63% | 2438 fps | 98.6% |
| Vihtavuori N140 | <<locked>> | 80% | 30,835 psi | 65% | 2438 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 90% | 33,808 psi | 72% | 2523 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 82% | 37,536 psi | 80% | 2589 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 29,414 psi | 62% | 2411 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 36,492 psi | 77% | 2631 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,624 psi | 82% | 2661 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 45 powders for 6.5 x 52 R K&S loaded with the .264 | 105gr | Lehigh Defense Match Solid. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,772 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,772 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 45 of the 45 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 105.0 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 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, IMR 3031, Lovex D073.6 rank at the top here: for 6.5 x 52 R K&S with the .264 | 105gr | Lehigh Defense Match Solid 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.