Load Specifications
Load data in caliber 6.5 x 52 R K&S with .264 | 131gr | Sellier & Bellot SP bullet and 51 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 Alliant Reloder-16.
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>> | 84% | 41,249 psi | 88% | 2415 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 41,655 psi | 88% | 2454 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 42,424 psi | 90% | 2533 fps | 97.3% |
| ADI AR 2208 | <<locked>> | 86% | 41,147 psi | 87% | 2421 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 41,481 psi | 88% | 2543 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 40,364 psi | 86% | 2441 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 84% | 40,930 psi | 87% | 2454 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,335 psi | 86% | 2497 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 92% | 42,656 psi | 90% | 2575 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,026 psi | 72% | 2388 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 41,771 psi | 89% | 2467 fps | 97.2% |
| Bofors RP3 | <<locked>> | 86% | 40,001 psi | 85% | 2448 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 86% | 41,350 psi | 88% | 2454 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,655 psi | 88% | 2490 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 41,423 psi | 88% | 2500 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,027 psi | 74% | 1581 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 41,655 psi | 88% | 2438 fps | 98.5% |
| IMR 3031 | <<locked>> | 82% | 42,279 psi | 90% | 2477 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 40,712 psi | 86% | 2408 fps | 97.5% |
| IMR 4831 | <<locked>> | 96% | 40,930 psi | 87% | 2490 fps | 97% |
| IMR 4895 | <<locked>> | 84% | 41,872 psi | 89% | 2484 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 82% | 41,481 psi | 88% | 2451 fps | 99.8% |
| Lovex S062 | <<locked>> | 84% | 40,538 psi | 86% | 2415 fps | 99% |
| Norma 201 | <<locked>> | 82% | 42,018 psi | 89% | 2428 fps | 99.2% |
| Norma 202 | <<locked>> | 82% | 42,264 psi | 90% | 2438 fps | 100% |
| Norma 203B | <<locked>> | 84% | 40,248 psi | 85% | 2444 fps | 97.9% |
| Norma URP | <<locked>> | 96% | 42,598 psi | 90% | 2533 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 86% | 42,656 psi | 90% | 2510 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,244 psi | 75% | 1617 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 42,554 psi | 90% | 2546 fps | 97.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 42,583 psi | 90% | 2585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 42,453 psi | 90% | 2556 fps | 96.9% |
| Rottweil R 902 | <<locked>> | 84% | 42,540 psi | 90% | 2428 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 88% | 40,234 psi | 85% | 2444 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 41,481 psi | 88% | 2451 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 40,538 psi | 86% | 2415 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,408 psi | 88% | 2493 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 41,379 psi | 88% | 2441 fps | 98.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 40,741 psi | 86% | 2349 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 42,569 psi | 90% | 2454 fps | 98.3% |
| Somchem S355 | <<locked>> | 88% | 41,060 psi | 87% | 2448 fps | 98.5% |
| Somchem S365 | <<locked>> | 98% | 40,712 psi | 86% | 2539 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 84% | 41,597 psi | 88% | 2411 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 42,554 psi | 90% | 2421 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 41,800 psi | 89% | 2434 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 94% | 42,206 psi | 90% | 2487 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 84% | 40,872 psi | 87% | 2411 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 94% | 41,118 psi | 87% | 2487 fps | 96.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,274 psi | 77% | 2461 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,132 psi | 85% | 2425 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 82% | 40,422 psi | 86% | 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% | 36,492 psi | 77% | 2329 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 34,490 psi | 73% | 2316 fps | 99.6% |
| Accurate 4350 | <<locked>> | 92% | 36,970 psi | 78% | 2431 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 34,171 psi | 72% | 2277 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,332 psi | 77% | 2431 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,417 psi | 71% | 2297 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,027 psi | 76% | 2352 fps | 96.2% |
| Alliant Reloder-16 | 33 gr | 90% | 35,650 psi | 76% | 2395 fps | 95% |
| Alliant Reloder-17 | 33.2 gr | 84% | 33,011 psi | 70% | 2362 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,184 psi | 68% | 2343 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,059 psi | 83% | 2415 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 32,677 psi | 69% | 2293 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 84% | 38,595 psi | 82% | 2402 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,561 psi | 69% | 2297 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,492 psi | 77% | 2398 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 55% | 1407 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,943 psi | 83% | 2385 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 39,697 psi | 84% | 2431 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,839 psi | 76% | 2306 fps | 96.2% |
| IMR 4831 | <<locked>> | 92% | 35,940 psi | 76% | 2392 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 36,840 psi | 78% | 2382 fps | 97.1% |
| Lovex D073.6 | <<locked>> | 80% | 38,667 psi | 82% | 2398 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 35,694 psi | 76% | 2316 fps | 98% |
| Norma 201 | <<locked>> | 80% | 39,595 psi | 84% | 2382 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 39,479 psi | 84% | 2388 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,447 psi | 75% | 2343 fps | 96.6% |
| Norma URP | <<locked>> | 92% | 37,492 psi | 80% | 2431 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 34,882 psi | 74% | 2352 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,121 psi | 55% | 1444 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,304 psi | 79% | 2441 fps | 96.6% |
| ReloadSwiss RS 60 | 31.6 gr | 80% | 30,821 psi | 65% | 2316 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,057 psi | 79% | 2451 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 37,463 psi | 79% | 2333 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,951 psi | 66% | 2244 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,667 psi | 82% | 2398 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,694 psi | 76% | 2316 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 31,995 psi | 68% | 2287 fps | 95% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,711 psi | 82% | 2388 fps | 97.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,910 psi | 72% | 2221 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 39,813 psi | 84% | 2402 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 32,068 psi | 68% | 2257 fps | 96% |
| Somchem S365 | <<locked>> | 86% | 27,847 psi | 59% | 2231 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 36,680 psi | 78% | 2326 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,449 psi | 79% | 2333 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,327 psi | 64% | 2201 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 37,173 psi | 79% | 2388 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 36,042 psi | 76% | 2320 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 92% | 38,769 psi | 82% | 2441 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 98% | 34,156 psi | 72% | 2415 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,850 psi | 65% | 2218 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,753 psi | 80% | 2388 fps | 97.8% |
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 51 powders for 6.5 x 52 R K&S loaded with the .264 | 131gr | Sellier & Bellot SP. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,585 fps; across all powders the maximum-charge window runs from 1,581 fps to 2,585 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 51 of the 51 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 131.0 gr projectile in 0.264" calls for a 1:10.5 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, Alliant Reloder-16 rank at the top here: for 6.5 x 52 R K&S with the .264 | 131gr | Sellier & Bellot SP 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.