Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 130gr | Barnes X S bullet and 42 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 Somchem S365.
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>> | 82% | 41,930 psi | 89% | 2392 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 41,814 psi | 89% | 2425 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 41,626 psi | 88% | 2493 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 86% | 42,264 psi | 90% | 2415 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,525 psi | 90% | 2533 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,163 psi | 89% | 2448 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,337 psi | 90% | 2451 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 94% | 41,466 psi | 88% | 2490 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 41,263 psi | 88% | 2520 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,592 psi | 76% | 2392 fps | 96.2% |
| Bofors RP3 | <<locked>> | 86% | 41,959 psi | 89% | 2454 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 40,640 psi | 86% | 2444 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 40,059 psi | 85% | 2444 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,404 psi | 75% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,641 psi | 90% | 2428 fps | 98.4% |
| IMR 4064 | <<locked>> | 84% | 41,887 psi | 89% | 2402 fps | 97.4% |
| IMR 4831 | <<locked>> | 96% | 42,438 psi | 90% | 2490 fps | 96.9% |
| IMR 4895 | <<locked>> | 82% | 40,886 psi | 87% | 2434 fps | 97.8% |
| Lovex S062 | <<locked>> | 84% | 42,105 psi | 89% | 2411 fps | 99% |
| Norma 203B | <<locked>> | 84% | 41,713 psi | 88% | 2444 fps | 97.9% |
| Norma URP | <<locked>> | 94% | 41,539 psi | 88% | 2484 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 84% | 41,046 psi | 87% | 2454 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 76% | 1604 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 41,336 psi | 88% | 2497 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 41,118 psi | 87% | 2526 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,031 psi | 87% | 2503 fps | 96% |
| Rottweil R 902 | <<locked>> | 82% | 41,727 psi | 89% | 2382 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 88% | 41,872 psi | 89% | 2444 fps | 98.5% |
| Shooters World Precision | <<locked>> | 84% | 42,105 psi | 89% | 2411 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,540 psi | 90% | 2487 fps | 97.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,221 psi | 90% | 2349 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 40,422 psi | 86% | 2405 fps | 98% |
| Somchem S365 | <<locked>> | 98% | 41,945 psi | 89% | 2536 fps | 99.4% |
| Vihtavuori N135 | <<locked>> | 82% | 40,756 psi | 86% | 2372 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 41,350 psi | 88% | 2375 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 40,654 psi | 86% | 2388 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 92% | 40,741 psi | 86% | 2431 fps | 96% |
| Vihtavuori N540 | <<locked>> | 84% | 42,366 psi | 90% | 2411 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 92% | 40,263 psi | 85% | 2441 fps | 95.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,869 psi | 80% | 2467 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 41,292 psi | 88% | 2418 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,858 psi | 89% | 2441 fps | 98.4% |
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% | 39,465 psi | 84% | 2349 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,260 psi | 79% | 2339 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,506 psi | 77% | 2392 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 35,563 psi | 75% | 2280 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,652 psi | 80% | 2428 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,186 psi | 75% | 2306 fps | 97.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,753 psi | 80% | 2359 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 90% | 37,101 psi | 79% | 2395 fps | 95% |
| Alliant Reloder-17 | 31.2 gr | 82% | 32,561 psi | 69% | 2316 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,678 psi | 71% | 2349 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 34,954 psi | 74% | 2313 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,097 psi | 68% | 2254 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,884 psi | 80% | 2402 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 57% | 1404 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,248 psi | 85% | 2382 fps | 97.9% |
| IMR 4064 | <<locked>> | 80% | 37,304 psi | 79% | 2310 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 37,507 psi | 80% | 2395 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,624 psi | 82% | 2388 fps | 97.2% |
| Lovex S062 | <<locked>> | 80% | 37,608 psi | 80% | 2326 fps | 98.1% |
| Norma 203B | <<locked>> | 80% | 37,231 psi | 79% | 2352 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 37,057 psi | 79% | 2392 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 36,390 psi | 77% | 2356 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 57% | 1440 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,653 psi | 82% | 2441 fps | 96.5% |
| ReloadSwiss RS 60 | 30.4 gr | 80% | 32,372 psi | 69% | 2323 fps | 97.8% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,479 psi | 82% | 2448 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 39,436 psi | 84% | 2339 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 33,127 psi | 70% | 2264 fps | 96.2% |
| Shooters World Precision | <<locked>> | 80% | 37,608 psi | 80% | 2326 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,446 psi | 71% | 2293 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,302 psi | 75% | 2221 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 34,055 psi | 72% | 2270 fps | 96.2% |
| Somchem S365 | 31 gr | 86% | 29,704 psi | 63% | 2251 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 38,392 psi | 81% | 2329 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,030 psi | 83% | 2333 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 32,184 psi | 68% | 2215 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 90% | 38,464 psi | 82% | 2385 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 37,507 psi | 80% | 2323 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 37,826 psi | 80% | 2392 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 35,853 psi | 76% | 2421 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,547 psi | 69% | 2231 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,494 psi | 84% | 2395 fps | 97.9% |
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 42 powders for 6.5 x 52 R K&S loaded with the .264 | 130gr | Barnes X S. Somchem S365 delivers the highest muzzle velocity at 2,536 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,536 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 42 of the 42 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (325 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, 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, Alliant Reloder-17, Somchem S365 rank at the top here: for 6.5 x 52 R K&S with the .264 | 130gr | 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.