Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 100gr | Norma HP bullet and 40 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 Accurate 4064.
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% | 40,234 psi | 85% | 2687 fps | 99.8% |
| Accurate 2460 | <<locked>> | 82% | 40,596 psi | 86% | 2720 fps | 98.3% |
| Accurate 2495 | <<locked>> | 92% | 41,408 psi | 88% | 2772 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 41,394 psi | 88% | 2776 fps | 98.1% |
| Accurate 4064 | <<locked>> | 94% | 41,220 psi | 87% | 2795 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 41,553 psi | 88% | 2743 fps | 96.4% |
| Alliant AR-Comp | <<locked>> | 88% | 42,380 psi | 90% | 2812 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 40,959 psi | 87% | 2779 fps | 95.9% |
| Bofors RP3 | <<locked>> | 94% | 40,538 psi | 86% | 2785 fps | 95.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 41,553 psi | 88% | 2697 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 88% | 41,887 psi | 89% | 2805 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 82% | 41,742 psi | 89% | 2766 fps | 99.3% |
| Hodgdon H335 | <<locked>> | 82% | 42,177 psi | 89% | 2779 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,518 psi | 71% | 1791 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 40,147 psi | 85% | 2795 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 41,553 psi | 88% | 2743 fps | 96.4% |
| Lovex D073.5 | <<locked>> | 82% | 40,422 psi | 86% | 2717 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 90% | 42,221 psi | 90% | 2802 fps | 98.3% |
| Lovex S062 | <<locked>> | 92% | 41,321 psi | 88% | 2753 fps | 96.5% |
| Norma 201 | <<locked>> | 88% | 40,756 psi | 86% | 2726 fps | 96.3% |
| Norma 202 | <<locked>> | 88% | 40,756 psi | 86% | 2746 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,852 psi | 72% | 1837 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 41,220 psi | 87% | 2736 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 41,742 psi | 89% | 2871 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 86% | 42,308 psi | 90% | 2743 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 90% | 41,220 psi | 87% | 2726 fps | 96.4% |
| Shooters World Match Rifle | <<locked>> | 90% | 42,221 psi | 90% | 2802 fps | 98.3% |
| Shooters World Precision | <<locked>> | 92% | 41,321 psi | 88% | 2753 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 40,495 psi | 86% | 2657 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 42,337 psi | 90% | 2703 fps | 99.4% |
| Somchem S321 | <<locked>> | 84% | 41,901 psi | 89% | 2772 fps | 96.8% |
| Somchem S335 | <<locked>> | 88% | 42,206 psi | 90% | 2707 fps | 99.3% |
| Vihtavuori N130 | <<locked>> | 82% | 40,727 psi | 86% | 2657 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 40,321 psi | 86% | 2664 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 92% | 42,163 psi | 89% | 2779 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 40,959 psi | 87% | 2730 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 98% | 42,612 psi | 90% | 2772 fps | 97.3% |
| Vihtavuori N530 | <<locked>> | 86% | 41,727 psi | 89% | 2740 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 92% | 42,192 psi | 90% | 2769 fps | 98.7% |
| Winchester 748 | <<locked>> | 86% | 39,943 psi | 85% | 2769 fps | 97% |
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% | 35,259 psi | 75% | 2582 fps | 99.3% |
| Accurate 2460 | <<locked>> | 80% | 37,956 psi | 81% | 2664 fps | 97.7% |
| Accurate 2495 | <<locked>> | 80% | 27,847 psi | 59% | 2457 fps | 97.7% |
| Accurate 2520 | <<locked>> | 80% | 33,576 psi | 71% | 2602 fps | 95.9% |
| Accurate 4064 | 30.3 gr | 82% | 28,050 psi | 60% | 2477 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 84% | 38,870 psi | 82% | 2684 fps | 95.6% |
| Alliant AR-Comp | <<locked>> | 80% | 32,300 psi | 69% | 2602 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 38,522 psi | 82% | 2730 fps | 95.2% |
| Bofors RP3 | <<locked>> | 92% | 37,753 psi | 80% | 2723 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 36,724 psi | 78% | 2592 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 84% | 36,506 psi | 77% | 2687 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 38,899 psi | 83% | 2707 fps | 98.9% |
| Hodgdon H335 | <<locked>> | 80% | 39,421 psi | 84% | 2720 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,932 psi | 53% | 1604 fps | 100% |
| IMR 3031 | 29.2 gr | 80% | 30,966 psi | 66% | 2579 fps | 97.7% |
| IMR 8208 XBR | <<locked>> | 84% | 38,870 psi | 82% | 2684 fps | 95.6% |
| Lovex D073.5 | <<locked>> | 80% | 37,710 psi | 80% | 2661 fps | 96.3% |
| Lovex D073.6 | <<locked>> | 82% | 32,111 psi | 68% | 2575 fps | 95.3% |
| Lovex S062 | <<locked>> | 90% | 38,957 psi | 83% | 2703 fps | 95.8% |
| Norma 201 | <<locked>> | 86% | 38,421 psi | 82% | 2674 fps | 95.6% |
| Norma 202 | <<locked>> | 80% | 31,502 psi | 67% | 2533 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,019 psi | 53% | 1644 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 38,522 psi | 82% | 2677 fps | 97% |
| ReloadSwiss RS 60 | 36.5 gr | 92% | 36,608 psi | 78% | 2746 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 35,201 psi | 75% | 2585 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 88% | 38,870 psi | 82% | 2677 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 32,111 psi | 68% | 2575 fps | 95.3% |
| Shooters World Precision | <<locked>> | 90% | 38,957 psi | 83% | 2703 fps | 95.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 33,750 psi | 72% | 2507 fps | 96.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 27,325 psi | 58% | 2356 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 36,332 psi | 77% | 2648 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 33,141 psi | 70% | 2510 fps | 97.3% |
| Vihtavuori N130 | <<locked>> | 80% | 38,363 psi | 81% | 2612 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 80% | 33,591 psi | 71% | 2520 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 80% | 28,601 psi | 61% | 2470 fps | 97.8% |
| Vihtavuori N140 | <<locked>> | 80% | 29,805 psi | 63% | 2467 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 92% | 35,143 psi | 75% | 2615 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 84% | 38,914 psi | 83% | 2680 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 82% | 30,705 psi | 65% | 2503 fps | 95.3% |
| Winchester 748 | <<locked>> | 82% | 34,896 psi | 74% | 2654 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 40 powders for 6.5 x 52 R K&S loaded with the .264 | 100gr | Norma HP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,791 fps to 2,871 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 40 of the 40 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.264" calls for a 1:9.5 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, Accurate 4064 rank at the top here: for 6.5 x 52 R K&S with the .264 | 100gr | Norma HP 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.