Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 100gr | Barnes X S bullet and 36 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Accurate 4064 and Shooters World Precision.
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% | 40,988 psi | 87% | 2743 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 41,640 psi | 88% | 2772 fps | 98.4% |
| Accurate 4064 | <<locked>> | 88% | 40,611 psi | 86% | 2766 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 82% | 41,147 psi | 87% | 2730 fps | 96.5% |
| Alliant AR-Comp | <<locked>> | 84% | 42,250 psi | 90% | 2799 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 41,423 psi | 88% | 2782 fps | 96.3% |
| Bofors RP3 | <<locked>> | 90% | 41,394 psi | 88% | 2792 fps | 96.4% |
| Hodgdon BL-C2 | <<locked>> | 84% | 42,061 psi | 89% | 2802 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 41,959 psi | 89% | 2779 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 42,467 psi | 90% | 2841 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,737 psi | 74% | 1821 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 40,509 psi | 86% | 2792 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 82% | 41,147 psi | 87% | 2730 fps | 96.5% |
| Lovex D073.6 | <<locked>> | 84% | 40,161 psi | 85% | 2753 fps | 98.1% |
| Lovex S062 | <<locked>> | 88% | 41,669 psi | 88% | 2753 fps | 96.8% |
| Norma 201 | <<locked>> | 84% | 41,466 psi | 88% | 2733 fps | 96.7% |
| Norma 202 | <<locked>> | 84% | 41,046 psi | 87% | 2746 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,867 psi | 74% | 1860 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 41,118 psi | 87% | 2861 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 86% | 41,843 psi | 89% | 2730 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 92% | 41,278 psi | 88% | 2782 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 84% | 40,161 psi | 85% | 2753 fps | 98.1% |
| Shooters World Precision | <<locked>> | 88% | 41,669 psi | 88% | 2753 fps | 96.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 40,538 psi | 86% | 2651 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 41,829 psi | 89% | 2690 fps | 99.5% |
| Somchem S335 | <<locked>> | 84% | 42,380 psi | 90% | 2703 fps | 99.4% |
| Somchem S355 | <<locked>> | 92% | 42,308 psi | 90% | 2789 fps | 96.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,928 psi | 83% | 2802 fps | 96.2% |
| Vihtavuori N133 | <<locked>> | 84% | 42,554 psi | 90% | 2700 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,569 psi | 90% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 41,002 psi | 87% | 2723 fps | 99% |
| Vihtavuori N150 | <<locked>> | 92% | 40,379 psi | 86% | 2723 fps | 97% |
| Vihtavuori N530 | <<locked>> | 82% | 41,249 psi | 88% | 2726 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 88% | 42,134 psi | 89% | 2762 fps | 98.8% |
| Winchester 748 | <<locked>> | 84% | 42,540 psi | 90% | 2822 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 41,684 psi | 88% | 2782 fps | 96% |
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% | 33,982 psi | 72% | 2592 fps | 99.4% |
| Accurate 2520 | <<locked>> | 80% | 38,856 psi | 82% | 2713 fps | 97.8% |
| Accurate 4064 | 30.8 gr | 80% | 32,082 psi | 68% | 2562 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,711 psi | 82% | 2674 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 80% | 37,333 psi | 79% | 2703 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 38,928 psi | 83% | 2730 fps | 95.6% |
| Bofors RP3 | <<locked>> | 88% | 38,899 psi | 83% | 2740 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,898 psi | 78% | 2687 fps | 96% |
| Hodgdon H4895 | <<locked>> | 82% | 39,494 psi | 84% | 2723 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 37,695 psi | 80% | 2730 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 55% | 1627 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 35,911 psi | 76% | 2690 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 38,711 psi | 82% | 2674 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 80% | 35,418 psi | 75% | 2644 fps | 96.8% |
| Lovex S062 | <<locked>> | 84% | 37,202 psi | 79% | 2651 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 36,738 psi | 78% | 2625 fps | 95.3% |
| Norma 202 | <<locked>> | 80% | 36,303 psi | 77% | 2641 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,049 psi | 55% | 1663 fps | 100% |
| ReloadSwiss RS 60 | 35.6 gr | 86% | 34,519 psi | 73% | 2687 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 82% | 37,347 psi | 79% | 2631 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 90% | 38,740 psi | 82% | 2726 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,418 psi | 75% | 2644 fps | 96.8% |
| Shooters World Precision | 32.2 gr | 84% | 37,202 psi | 79% | 2651 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 38,101 psi | 81% | 2598 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,314 psi | 66% | 2454 fps | 97.3% |
| Somchem S335 | <<locked>> | 80% | 37,681 psi | 80% | 2605 fps | 98.7% |
| Somchem S355 | <<locked>> | 90% | 39,798 psi | 84% | 2733 fps | 95.3% |
| Somchem S365 | <<locked>> | 98% | 36,695 psi | 78% | 2743 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 37,884 psi | 80% | 2605 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 80% | 33,417 psi | 71% | 2579 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 80% | 34,389 psi | 73% | 2575 fps | 97.5% |
| Vihtavuori N150 | <<locked>> | 88% | 35,679 psi | 76% | 2618 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 38,783 psi | 82% | 2674 fps | 96% |
| Vihtavuori N540 | <<locked>> | 80% | 33,112 psi | 70% | 2556 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 37,333 psi | 79% | 2703 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 84% | 39,204 psi | 83% | 2726 fps | 95.2% |
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 36 powders for 6.5 x 52 R K&S loaded with the .264 | 100gr | Barnes X S. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,861 fps; across all powders the maximum-charge window runs from 1,821 fps to 2,861 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 36 of the 36 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 74–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.264" calls for a 1:11.0 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, Accurate 4064, Shooters World Precision rank at the top here: for 6.5 x 52 R K&S with the .264 | 100gr | Barnes X S 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.